Regional Highs and Rainfall (rainfall is 7pmET Thur-1pmET Fri) for
Fri Dec 31 2010
Piarco Airport, Trinidad 32.3C 90F
Maraval, NW Trinidad 29.5C 85F
Crown Point, Tobago 30.2C 86F 0.2mm
Point Salines, Grenada 30.2C 86F 0.6mm
Grantley Adams, Barbados 29.4C 85F 0.1mm
Arnos Vale, St Vincent 29.9C 86F 0.3mm
Hewannora, St Lucia 28.7C 84F 15.1mm
Vigie, St Lucia 28.7C 84F 7.1mm
Melville Hall, Dominica 26.1C 79F 36.8mm
LeLamentin, Martinique 28.1C 83F 9.0mm
Le Raizet, Guadeloupe 26.5C 80F 25.8mm
Golden Rock, St Kitts 26.8C 80F 1.0mm
VC Bird, Antigua 27.2C 81F 1.0mm
San Juan Puerto Rico 26.7C 80F trace
Owen Roberts, Grand Cayman 28.1C 83F
Kingston, Jamaica 29.1C 84F
Montego Bay, Jamaica 29.1C 84F
Havana, Cuba 27.1C 81F
Key West, Florida 23.3C 74F
Miami Florida 25.6C 78F
Nassau, Bahamas 24.8C 77F
Hamilton, Bermuda 18.0C 65F
-justin-
Caribbean - Central America Weather
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tropicana
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Re: Caribbean - Central America Weather Thread
Last edited by tropicana on Fri Dec 31, 2010 7:23 pm, edited 1 time in total.
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Re: Caribbean - Central America Weather Thread
OK this is a very long post, but 2010 was a very busy year weather-wise. If you don't want to read that much I will post a summary only with the extreme temperatures and the records.
IMPORTANT EVENTS IN EL SALVADOR ON 2010
January
• Two moderate cold surges were experienced from January 2 to January 7.
• From January 9 to January 13 a 1040 mb high and associated cold front affected the country with low temperatures and strong winds. In some places wind gusts of 85 km/h (53 mph) were registered. In San Salvador a minimum temperature of 12.3°C (54.1°F) was experienced on January 12, the lowest temperature in the city during the 2009-2010 cold front season.
• A minimum temperature of 2.6°C (36.7°F) was registered in Los Naranjos on January 22. That’s the lowest temperature experienced in the country during the 2009-2010 cold season.
February
• The lack of cold fronts during the last 10 days of January and the first week of February caused the maximum temperatures to go unusually high reaching 35°C (95°F) in San Salvador (the highest temperature of the year in San Salvador) and 40°C (104°F) in San Miguel, those temperatures are more typical of late March and April.
• A total of four cold fronts were experienced between February 10 and February 25. The lowest temperature of the month in San Salvador was 16°C (60.8°F) and in the country was 7°C (44.6°F) in Las Pilas.
March
• Two moderate cold surges occurred during March, the first one lasted from March 3 to March 8 and the second one from March 17 to March 19.
April
• On April 8 the harbor of Acajutla registered a minimum temperature of 26.3°C (79.3°F) becoming the warmest minimum temperature on the country on 2010.
• On April 24 San Salvador experienced its warmest low temperature of the year when the mark only reached down to 22.4°C (72.3°F).
May
• On May 14 a maximum temperature of 41.2°C (106.2°F) was registered in the municipality of Mercedes Umaña becoming the warmest temperature of the year in the country.
• From May 24 to May 28 a low pressure system produced moderate rains in El Salvador. On May 29 the low pressure became tropical storm Agatha and extremely heavy rains fell in the country, the station of La Hachadura near the border with Guatemala recorded 483 mm (19.02 inches) in just 24 hours making Agatha the wettest known tropical cyclone in El Salvador in a 24 hours period and making May 29 2010 the wettest day on record in the country. Agatha also produced wind gusts of 80 km/h (50 mph) in Acajutla and the Gulf of Fonseca on May 29 and May 30 respectively.
The picture shows the rainfall amounts on May 29.
The picture shows a comparison of Agatha's rainfall in 24 hours with other cyclones.
• The rains continued on May 30. The rainfall amounts between May 26 and May 30 reached 574 mm in La Hachadura (22.7 inches) making Agatha the 3rd wettest tropical cyclone on record in a 5 day period since reliable records began in El Salvador. In total Agatha killed 11 people, more than 10000 were displaced and the damages were estimated in US$ 112.1 million. The picture shows a comparison of Agatha's rains with other tropical cyclones in a 5 days period.
• The rainfall amount in May 2010 had a country-wide mean of 526 mm (20.7 inches) making May 2010 the wettest month of the year and the wettest May on record. The average rainfall for May is only 190 mm (7.48 inches).
June
• From June 25 to June 29 Hurricane Alex produced heavy rains over El Salvador. The wettest day was June 26 when 162.6 mm (6.4 inches) were registered in Acajutla. The highest amount in the period from June 25 to June 29 was 301.1 mm (11.85 inches) in La Hachadura (see the picture below). Alex killed 5 people and more than 5000 were affected.
July
• July 16 and 17 were the wettest days of the month with amounts of 86.4 mm (3.4 inches) and 95.7 mm (3.76 inches) respectively.
August
• On August 21 TD 9E (later Hurricane Frank) produced rainfall amounts of 97.2 mm (3.83 inches) in Concepcion de Oriente.
September
• On September 2 TD 11E produced a rainfall amount of 92.2 mm (3.63 inches) in La Herradura. The same place that experienced the highest amounts from Agatha and Alex.
• From September 24 to September 26 Tropical storm Matthew produced heavy rains over El Salvador. The maximum amounts were:
- 76.2 mm (3 inches) on September 24
- 126.9 mm (5 inches) on September 25.
- 139.4 mm (5.49 inches) on September 26.
Matthew killed 3 people and more than 2300 were affected.
• From September 27 to September 30 a monsoon system that later became tropical storm Nicole produced more heavy rains over El Salvador. The maximum amounts were:
- 78.2 (3.08 inches) on September 27.
- 90.9 (3.58 inches) on September 28.
- 221.8 mm (8.73 inches) on September 29. Making that day the second wettest day of the year.
There were no deaths during this period but more than 5000 were moved to shelters.
• A mean of 239.3 mm (9.42 inches) was registered in the country during the period between September 24 and 29. The highest amount during that period was 543.8 mm (21.5 inches) in Ataco (see the pciture below).
• September was the second wettest month of the year with a mean of 525 mm (20.67 inches) that is well above the average of 360 mm (14.17 inches).
October
• An early season cold surge produced strong winds and cool temperature from October 3 to October 8. After October 3 less than 5 mm (0.2 inches) of rain were registered for 15 consecutive days marking the earliest end of the rainy season since reliable records began in El Salvbador.
• In October 2010 only 59 mm (2.32 inches) of rain were registered, that is well below the average of 206 mm (8.11 inches) making this month the second driest October ever, only behind October 1987.
November
• In November 2010 2 cold surges were experienced. The first one from November 4 to November 9 and the second one from November 20 to November 21.
• From January 1 to November 30 a mean rainfall amount of 2548 mm (100.31 inches) was registered making 2010 the wettest year on record in El Salvador breaking the old record of 2181 mm (85.87 inches)registered in 2005 and well above the average of 1800 mm (70.87 inches). The station with the highest rainfall was in Los Naranjos where 3511 mm (138.23 inches) were registered making it the highest rainfall accumulation ever registered in any place in the country (see the picture below).
December
• From December 1 to December 16 four consecutive cold surges produced strong winds and cold temperatures.
• On December 9 the coldest maximum temperature of the year was registered in Las Pilas when the thermometer only registered 12.1°C (53.8 °F).
• On December 11 a minimum temperature of 3.3°C (37.9°F) was registered in Las Pilas breaking the old record of 3.4°C (38.1°F) registered on 1996 and 2009. On December 15 the temperature on that station dropped down to 1.2°C (34.2 °F) breaking again the record of the lowest temperature ever recorded in that station.
• On December 16 was the coldest day in at least 4 years. Minimum temperatures of: 11.1°C (52°F), 12.4°C (54.3°F) and 14°C (57.2°F) were registered in Santa Ana, San Salvador and San Miguel respectively (the 3 most important cities of the country) making that day the coldest so far of the 2010-2011 cold season.
• Between December 26 and December 28 a moderate cold surge affected the country.
IMPORTANT EVENTS IN EL SALVADOR ON 2010
January
• Two moderate cold surges were experienced from January 2 to January 7.
• From January 9 to January 13 a 1040 mb high and associated cold front affected the country with low temperatures and strong winds. In some places wind gusts of 85 km/h (53 mph) were registered. In San Salvador a minimum temperature of 12.3°C (54.1°F) was experienced on January 12, the lowest temperature in the city during the 2009-2010 cold front season.
• A minimum temperature of 2.6°C (36.7°F) was registered in Los Naranjos on January 22. That’s the lowest temperature experienced in the country during the 2009-2010 cold season.
February
• The lack of cold fronts during the last 10 days of January and the first week of February caused the maximum temperatures to go unusually high reaching 35°C (95°F) in San Salvador (the highest temperature of the year in San Salvador) and 40°C (104°F) in San Miguel, those temperatures are more typical of late March and April.
• A total of four cold fronts were experienced between February 10 and February 25. The lowest temperature of the month in San Salvador was 16°C (60.8°F) and in the country was 7°C (44.6°F) in Las Pilas.
March
• Two moderate cold surges occurred during March, the first one lasted from March 3 to March 8 and the second one from March 17 to March 19.
April
• On April 8 the harbor of Acajutla registered a minimum temperature of 26.3°C (79.3°F) becoming the warmest minimum temperature on the country on 2010.
• On April 24 San Salvador experienced its warmest low temperature of the year when the mark only reached down to 22.4°C (72.3°F).
May
• On May 14 a maximum temperature of 41.2°C (106.2°F) was registered in the municipality of Mercedes Umaña becoming the warmest temperature of the year in the country.
• From May 24 to May 28 a low pressure system produced moderate rains in El Salvador. On May 29 the low pressure became tropical storm Agatha and extremely heavy rains fell in the country, the station of La Hachadura near the border with Guatemala recorded 483 mm (19.02 inches) in just 24 hours making Agatha the wettest known tropical cyclone in El Salvador in a 24 hours period and making May 29 2010 the wettest day on record in the country. Agatha also produced wind gusts of 80 km/h (50 mph) in Acajutla and the Gulf of Fonseca on May 29 and May 30 respectively.
The picture shows the rainfall amounts on May 29.
The picture shows a comparison of Agatha's rainfall in 24 hours with other cyclones.
• The rains continued on May 30. The rainfall amounts between May 26 and May 30 reached 574 mm in La Hachadura (22.7 inches) making Agatha the 3rd wettest tropical cyclone on record in a 5 day period since reliable records began in El Salvador. In total Agatha killed 11 people, more than 10000 were displaced and the damages were estimated in US$ 112.1 million. The picture shows a comparison of Agatha's rains with other tropical cyclones in a 5 days period.
• The rainfall amount in May 2010 had a country-wide mean of 526 mm (20.7 inches) making May 2010 the wettest month of the year and the wettest May on record. The average rainfall for May is only 190 mm (7.48 inches).
June
• From June 25 to June 29 Hurricane Alex produced heavy rains over El Salvador. The wettest day was June 26 when 162.6 mm (6.4 inches) were registered in Acajutla. The highest amount in the period from June 25 to June 29 was 301.1 mm (11.85 inches) in La Hachadura (see the picture below). Alex killed 5 people and more than 5000 were affected.
July
• July 16 and 17 were the wettest days of the month with amounts of 86.4 mm (3.4 inches) and 95.7 mm (3.76 inches) respectively.
August
• On August 21 TD 9E (later Hurricane Frank) produced rainfall amounts of 97.2 mm (3.83 inches) in Concepcion de Oriente.
September
• On September 2 TD 11E produced a rainfall amount of 92.2 mm (3.63 inches) in La Herradura. The same place that experienced the highest amounts from Agatha and Alex.
• From September 24 to September 26 Tropical storm Matthew produced heavy rains over El Salvador. The maximum amounts were:
- 76.2 mm (3 inches) on September 24
- 126.9 mm (5 inches) on September 25.
- 139.4 mm (5.49 inches) on September 26.
Matthew killed 3 people and more than 2300 were affected.
• From September 27 to September 30 a monsoon system that later became tropical storm Nicole produced more heavy rains over El Salvador. The maximum amounts were:
- 78.2 (3.08 inches) on September 27.
- 90.9 (3.58 inches) on September 28.
- 221.8 mm (8.73 inches) on September 29. Making that day the second wettest day of the year.
There were no deaths during this period but more than 5000 were moved to shelters.
• A mean of 239.3 mm (9.42 inches) was registered in the country during the period between September 24 and 29. The highest amount during that period was 543.8 mm (21.5 inches) in Ataco (see the pciture below).
• September was the second wettest month of the year with a mean of 525 mm (20.67 inches) that is well above the average of 360 mm (14.17 inches).
October
• An early season cold surge produced strong winds and cool temperature from October 3 to October 8. After October 3 less than 5 mm (0.2 inches) of rain were registered for 15 consecutive days marking the earliest end of the rainy season since reliable records began in El Salvbador.
• In October 2010 only 59 mm (2.32 inches) of rain were registered, that is well below the average of 206 mm (8.11 inches) making this month the second driest October ever, only behind October 1987.
November
• In November 2010 2 cold surges were experienced. The first one from November 4 to November 9 and the second one from November 20 to November 21.
• From January 1 to November 30 a mean rainfall amount of 2548 mm (100.31 inches) was registered making 2010 the wettest year on record in El Salvador breaking the old record of 2181 mm (85.87 inches)registered in 2005 and well above the average of 1800 mm (70.87 inches). The station with the highest rainfall was in Los Naranjos where 3511 mm (138.23 inches) were registered making it the highest rainfall accumulation ever registered in any place in the country (see the picture below).
December
• From December 1 to December 16 four consecutive cold surges produced strong winds and cold temperatures.
• On December 9 the coldest maximum temperature of the year was registered in Las Pilas when the thermometer only registered 12.1°C (53.8 °F).
• On December 11 a minimum temperature of 3.3°C (37.9°F) was registered in Las Pilas breaking the old record of 3.4°C (38.1°F) registered on 1996 and 2009. On December 15 the temperature on that station dropped down to 1.2°C (34.2 °F) breaking again the record of the lowest temperature ever recorded in that station.
• On December 16 was the coldest day in at least 4 years. Minimum temperatures of: 11.1°C (52°F), 12.4°C (54.3°F) and 14°C (57.2°F) were registered in Santa Ana, San Salvador and San Miguel respectively (the 3 most important cities of the country) making that day the coldest so far of the 2010-2011 cold season.
• Between December 26 and December 28 a moderate cold surge affected the country.
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Re: Caribbean - Central America Weather Thread
Summary of 2010 Extremes
• Coldest minimum temperature: 1.2°C (34.2°F) in Las Pilas on December 15.
• Coldest maximum temperature: 12.1°C (53.8°F) in Las Pilas on December 9.
• Warmest minimum temperature: 26.3°C (79.3°F) in Acajutla on April 8.
• Warmest maximum temperature: 41.2°C (106.16°F) in Mercedes Umaña on May 14.
• Wettest day: May 29 when 483 mm (19.02) inches were registered in La Hachadura.
Summary of 2010 Records
• Lowest temperature ever registered in Las Pilas: 1.2°C (34.2°F) on December 15.
• Wettest day ever registered in El Salvador: 483 mm (19.02) inches was registered in La Hachadura.
• Wettest May ever: 526 mm (20.71 inches)
• Wettest tropical cyclone in a 24 hours period: Agatha 483 mm (19.02 inches) on May 29.
• Third wettest tropical cyclone in a 120 hours period: Agatha 574 mm (22.6 inches)
• Wettest year on record: 2548 mm (100.31 inches). The average is 1800 mm (70.89 inches).
• Highest accumulated rainfall ever registered: Los Naranjos 3511 mm (138.23 inches).
• Coldest minimum temperature: 1.2°C (34.2°F) in Las Pilas on December 15.
• Coldest maximum temperature: 12.1°C (53.8°F) in Las Pilas on December 9.
• Warmest minimum temperature: 26.3°C (79.3°F) in Acajutla on April 8.
• Warmest maximum temperature: 41.2°C (106.16°F) in Mercedes Umaña on May 14.
• Wettest day: May 29 when 483 mm (19.02) inches were registered in La Hachadura.
Summary of 2010 Records
• Lowest temperature ever registered in Las Pilas: 1.2°C (34.2°F) on December 15.
• Wettest day ever registered in El Salvador: 483 mm (19.02) inches was registered in La Hachadura.
• Wettest May ever: 526 mm (20.71 inches)
• Wettest tropical cyclone in a 24 hours period: Agatha 483 mm (19.02 inches) on May 29.
• Third wettest tropical cyclone in a 120 hours period: Agatha 574 mm (22.6 inches)
• Wettest year on record: 2548 mm (100.31 inches). The average is 1800 mm (70.89 inches).
• Highest accumulated rainfall ever registered: Los Naranjos 3511 mm (138.23 inches).
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cycloneye
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- Location: San Juan, Puerto Rico
Re: Caribbean - Central America Weather Thread
Good morning on the first day of 2011.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
600 AM AST SAT JAN 1 2011
.SYNOPSIS...BREEZY NORTHEASTERLY WINDS AND ISOLATED QUICK
PASSING SHOWERS...WITH LITTLE OVERALL ACCUMULATION...ARE EXPECTED
TO CONTINUE ACROSS PUERTO RICO AND THE U.S. VIRGIN ISLANDS THROUGH
THE REMAINDER OF THE HOLIDAY WEEKEND AND INTO NEXT WEEK.
&&
.DISCUSSION...PATCHY MOISTURE UPSTREAM OF THE REGION WILL PUSH
RAPIDLY ACROSS THE LOCAL ISLANDS OVER THE NEXT SEVERAL DAYS AS AN
AREA OF HIGH PRESSURE BECOMES ANCHORED ACROSS THE SOUTHWESTERN
ATLANTIC...ACTING TO INCREASE THE LOCAL PRESSURE GRADIENT. WHILE
GENERALLY BREEZY CONDS ARE EXPECTED TO PERSIST INTO EARLY NEXT
WEEK...SHOWER ACTIVITY WILL REMAIN MAINLY ISOLATED...WITH NO
SIGNIFICANT RAINFALL ACCUMULATIONS EXPECTED OVER THE FIRST WEEK OF
THE NEW YEAR. LATEST COMPUTER MODEL GUIDANCE INDICATING WE MAY
SEE SLIGHTLY BETTER MOISTURE CREEP NORTHWARD ACROSS THE LOCAL AREA
TOWARDS THE END OF NEXT WEEK...BUT STILL TO FAR OUT AND NOT NEARLY
IMPRESSIVE ENOUGH TO SIGNIFICANTLY ALTER EXTENDED FORECAST AT THIS
TIME.
&&
.AVIATION...VFR COND TO PERSIST THROUGH THE WEEKEND. PDS OF SCT-BKN
LOW CLD LAYERS 020-080 KFT WILL MOVE INTO THE REGION IN NE FLOW WITH
ISOLD/SCT -SHRA ALL TAF SITES XCP JPS/JMZ. NE WINDS 15 TO 25 KT TO
FL100 BUT WILL GRADUALLY DEEPEN TO FL200 TONIGHT AND SUNDAY. GUSTS
TO 20-25 KT CAN BE EXPECTED AT TAF SITES MAINLY IN DAYTIME.
&&
.MARINE...NORTHERLY SWELLS WILL CONTINUE TO SUBSIDE ACROSS THE
LOCAL WATERS TODAY. HOWEVER...INCREASING NORTHEASTERLY TRADE
WINDS...AND LOCALLY WIND WAVE DRIVEN SEAS...WILL HELP TO MAINTAIN
HAZARDOUS MARINE CONDITIONS ACROSS LARGE PORTIONS OF THE LOCAL
WATERS THROUGH EARLY NEXT WEEK.
&&
.CLIMATE...WITH A TOTAL OF 89.51 INCHES OF RAINFALL ACCUMULATING
AT THE LUIS MUNOZ MARIN INTERNATIONAL AIRPORT IN SAN JUAN THIS
PAST YEAR...A NEW ANNUAL RAINFALL RECORD FOR THE SAN JUAN METRO
AREA HAS BEEN ESTABLISHED. THIS TOTAL SURPASSED THE PREVIOUS
RECORD OF 87.55 INCHES RECORDED IN 1931...WHEN THE NATIONAL
WEATHER SERVICE OFFICE WAS LOCATED IN PUERTA DE TIERRA NEAR OLD
SAN JUAN. AVERAGE RAINFALL FOR THE YEAR IS 50.76 IN SAN JUAN.
&&
.PRELIMINARY POINT TEMPS/POPS...
SJU 80 70 80 71 / 40 30 30 30
STT 82 71 83 73 / 30 30 30 30
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
600 AM AST SAT JAN 1 2011
.SYNOPSIS...BREEZY NORTHEASTERLY WINDS AND ISOLATED QUICK
PASSING SHOWERS...WITH LITTLE OVERALL ACCUMULATION...ARE EXPECTED
TO CONTINUE ACROSS PUERTO RICO AND THE U.S. VIRGIN ISLANDS THROUGH
THE REMAINDER OF THE HOLIDAY WEEKEND AND INTO NEXT WEEK.
&&
.DISCUSSION...PATCHY MOISTURE UPSTREAM OF THE REGION WILL PUSH
RAPIDLY ACROSS THE LOCAL ISLANDS OVER THE NEXT SEVERAL DAYS AS AN
AREA OF HIGH PRESSURE BECOMES ANCHORED ACROSS THE SOUTHWESTERN
ATLANTIC...ACTING TO INCREASE THE LOCAL PRESSURE GRADIENT. WHILE
GENERALLY BREEZY CONDS ARE EXPECTED TO PERSIST INTO EARLY NEXT
WEEK...SHOWER ACTIVITY WILL REMAIN MAINLY ISOLATED...WITH NO
SIGNIFICANT RAINFALL ACCUMULATIONS EXPECTED OVER THE FIRST WEEK OF
THE NEW YEAR. LATEST COMPUTER MODEL GUIDANCE INDICATING WE MAY
SEE SLIGHTLY BETTER MOISTURE CREEP NORTHWARD ACROSS THE LOCAL AREA
TOWARDS THE END OF NEXT WEEK...BUT STILL TO FAR OUT AND NOT NEARLY
IMPRESSIVE ENOUGH TO SIGNIFICANTLY ALTER EXTENDED FORECAST AT THIS
TIME.
&&
.AVIATION...VFR COND TO PERSIST THROUGH THE WEEKEND. PDS OF SCT-BKN
LOW CLD LAYERS 020-080 KFT WILL MOVE INTO THE REGION IN NE FLOW WITH
ISOLD/SCT -SHRA ALL TAF SITES XCP JPS/JMZ. NE WINDS 15 TO 25 KT TO
FL100 BUT WILL GRADUALLY DEEPEN TO FL200 TONIGHT AND SUNDAY. GUSTS
TO 20-25 KT CAN BE EXPECTED AT TAF SITES MAINLY IN DAYTIME.
&&
.MARINE...NORTHERLY SWELLS WILL CONTINUE TO SUBSIDE ACROSS THE
LOCAL WATERS TODAY. HOWEVER...INCREASING NORTHEASTERLY TRADE
WINDS...AND LOCALLY WIND WAVE DRIVEN SEAS...WILL HELP TO MAINTAIN
HAZARDOUS MARINE CONDITIONS ACROSS LARGE PORTIONS OF THE LOCAL
WATERS THROUGH EARLY NEXT WEEK.
&&
.CLIMATE...WITH A TOTAL OF 89.51 INCHES OF RAINFALL ACCUMULATING
AT THE LUIS MUNOZ MARIN INTERNATIONAL AIRPORT IN SAN JUAN THIS
PAST YEAR...A NEW ANNUAL RAINFALL RECORD FOR THE SAN JUAN METRO
AREA HAS BEEN ESTABLISHED. THIS TOTAL SURPASSED THE PREVIOUS
RECORD OF 87.55 INCHES RECORDED IN 1931...WHEN THE NATIONAL
WEATHER SERVICE OFFICE WAS LOCATED IN PUERTA DE TIERRA NEAR OLD
SAN JUAN. AVERAGE RAINFALL FOR THE YEAR IS 50.76 IN SAN JUAN.
&&
.PRELIMINARY POINT TEMPS/POPS...
SJU 80 70 80 71 / 40 30 30 30
STT 82 71 83 73 / 30 30 30 30
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cycloneye
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Re: Caribbean - Central America Weather Thread
New Record of Rainfall in San Juan,Puerto Rico
The new record that was broken in 2010 is 89.51 inches,which is the most ever in the modern age.
http://www.srh.noaa.gov/sju//?n=rainfall2010
The new record that was broken in 2010 is 89.51 inches,which is the most ever in the modern age.
http://www.srh.noaa.gov/sju//?n=rainfall2010
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cycloneye
- Admin
- Posts: 145332
- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
- Location: San Juan, Puerto Rico
Re: Caribbean - Central America Weather Thread
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
203 PM AST SAT JAN 1 2011
.SYNOPSIS...SURFACE HIGH PRESSURE WILL KEEP A FRESH TRADE WIND
FLOW ACROSS THE REGION. PATCHES OF LOW LEVEL MOISTURE WILL
CONTINUE DURING THE NEXT FEW DAYS. MOISTURE WILL INCREASE
WEDNESDAY FROM THE SOUTH.
&&
.DISCUSSION...PARTLY SUNNY SKIES PREVAILED ACROSS THE LOCAL ISLANDS
THIS AFTERNOON. SATELITE IMAGES DETECTED SOME CLOUDINESS MOVING
ACROSS PUERTO RICO AND THE U.S. VIRGIN ISLANDS FROM TIME TO TIME.
THE SHOWER ACTIVITY ASSOCIATED WITH IT...HAS BEEN MINIMAL OVER
LAND AS THIS SHOWERS MOVES QUICKLY. THE MAIN WEATHER FEATURE WHICH
WILL DOMINATE THE LOCAL AREA AT LEAST THROUGH WEDNESDAY IS A
SURFACE HIGH PRESSURE LOCATED NORTH OF THE AREA. THIS AREA OF HIGH
PRESSURE IS PRODUCING A FRESH TRADE WIND FLOW WHICH WILL CONTINUE
TO BRING PATCHES OF LOW LEVEL MOISTURE ACROSS THE REGION FOR THE
NEXT FEW DAYS. NO CHANGES IN THIS WEATHER PATTERN IS EXPECTED IN
THE NEAR FUTURE...AS DRY AIR DOMINATES THE LOCAL REGION. BOTH MODELS
...THE NAM12 AND THE GFS...AGREED THAT THE DRIEST DAY NEXT WEEK
APPEARS TO BE TUESDAY. IN FACT...COMPUTER MODELS AS WELL AS PROG
SOUNDINGS ARE FORECASTING THAT WE WILL GET BETTER MOISTURE
STARTING ON WEDNESDAY...AS WINDS ARE FORECAST TO RELAX AND SHIFT
MORE SOUTHEAST. GFS COMPUTER MODEL SUGGEST THIS WEATHER SCENARIO
WILL BE POSSIBLE DUE TO THE DEVELOPMENT OF A STRONG AREA OF LOW
PRESSURE ACROSS THE NORTH CENTRAL AND EASTERN U.S. BY MID
WEEK...AND CONTINUING INTO NEXT WEEKEND. HOWEVER...IS TOO EARLY TO
KNOW IF THIS MODEL FORECAST WILL VERIFY. IN THE MEANTIME...NO
SIGNIFICANT WEATHER EVENT ARE FORECAST TO AFFECT THE LOCAL REGION
THE BEGINNING OF THIS NEW YEAR 2011.
&&
.AVIATION...MAINLY VFR CONDS TO PERSIST ACROSS THE NORTHEAST CARIB
THROUGH SUNDAY. MOSTLY SCT CLOUDS 015-030 WITH OCNL BKN LYRS 040-060
AS SHEAR LINE CONTINUES TO MOVE SOUTHWEST ACROSS THE AREA. SCT SHRA
TO TO COVER NORTH HALF PR AND USVI THROUGH 04Z. AFT 04Z ISOL SHRA
EXPECT SCT SHRA VCNTY TNCM/TKPK. LOW LEVEL WIND FLOW TO CONTNIUE
FROM THE NORTHEAST AT 15 TO 25 KT TO FL100.
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tropicana
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Re: Caribbean - Central America Weather Thread
Regional Highs and Rainfall (rain is 7pmET Fri-7pmET Sat) for
Sat Jan 01 2011
Piarco Airport, Trinidad 31.4C 88F trace
Maraval, NW Trinidad 30.3C 86F 0.5mm
Crown Point, Tobago 30.3C 86F 0.1mm
Point Salines, Grenada 29.0C 84F 0.8mm
Grantley Adams, Barbados 28.9C 84F 2.1mm
Rockley, S. Barbados 29.2C 85F 7.1mm
Arnos Vale, St Vincent 29.2C 85F 33.8mm
Hewanorra, St Lucia 28.5C 84F 9.8mm
Melville Hall, Dominica 27.8C 82F
Le Lamentin, Martinique 28.5C 84F 10.7mm
VC Bird, Antigua 27.4C 81F 0.3mm
Golden Rock, St Kitts 27.1C 81F 0.8mm
San Juan, Puerto Rico 27.2C 81F 0.3mm
Owen Roberts, Grand Cayman 28.1C 82F
Kingston, Jamaica 29.2C 85F
Montego Bay, Jamaica 28.8C 84F
Havana, Cuba 27.4C 81F
Key West, Florida 23.9C 75F
Miami, Florida 25.6C 78F
Nassau, Bahamas 25.4C 77F
Hamilton, Bermuda 19.4C 67F trace
Hato Airport, Curacao 27.2C 81F 11.2mm
Queen Beatrix, Aruba 29.3C 85F 19.2mm
Flamingo, Bonaire 28.9C 84F 28.6mm
-justin-
Sat Jan 01 2011
Piarco Airport, Trinidad 31.4C 88F trace
Maraval, NW Trinidad 30.3C 86F 0.5mm
Crown Point, Tobago 30.3C 86F 0.1mm
Point Salines, Grenada 29.0C 84F 0.8mm
Grantley Adams, Barbados 28.9C 84F 2.1mm
Rockley, S. Barbados 29.2C 85F 7.1mm
Arnos Vale, St Vincent 29.2C 85F 33.8mm
Hewanorra, St Lucia 28.5C 84F 9.8mm
Melville Hall, Dominica 27.8C 82F
Le Lamentin, Martinique 28.5C 84F 10.7mm
VC Bird, Antigua 27.4C 81F 0.3mm
Golden Rock, St Kitts 27.1C 81F 0.8mm
San Juan, Puerto Rico 27.2C 81F 0.3mm
Owen Roberts, Grand Cayman 28.1C 82F
Kingston, Jamaica 29.2C 85F
Montego Bay, Jamaica 28.8C 84F
Havana, Cuba 27.4C 81F
Key West, Florida 23.9C 75F
Miami, Florida 25.6C 78F
Nassau, Bahamas 25.4C 77F
Hamilton, Bermuda 19.4C 67F trace
Hato Airport, Curacao 27.2C 81F 11.2mm
Queen Beatrix, Aruba 29.3C 85F 19.2mm
Flamingo, Bonaire 28.9C 84F 28.6mm
-justin-
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cycloneye
- Admin
- Posts: 145332
- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
- Location: San Juan, Puerto Rico
Re: Caribbean - Central America Weather Thread
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN JUAN PR
941 PM AST SAT JAN 1 2011
.UPDATE...THE BAND OF MOISTURE THAT MOVED THROUGH PUERTO RICO AND
THE U.S. VIRGIN ISLANDS BRINGING BRIEF BUT OCCASIONALLY HEAVY
SHOWERS HAS NEARLY PASSED. SHOWERS WILL ABATE SOMEWHAT
OVERNIGHT...BUT OTHER PATCHES WILL CONTINUE TO PROVIDE ISOLATED
SHOWERS...MAINLY IN THE NORTHERN VIRGIN ISLANDS AND ON THE
NORTHEAST SIDE OF THE CORDILLERA CENTRAL LATER TONIGHT AND SUNDAY.
COOL AIR ADVECTION WILL CONTINUE OVER THE AREA WHILE DRYING RUNS
THROUGH MONDAY AFTERNOON. THE GFS PROMISES MORE MOISTURE BEGINNING
TUESDAY AND WARMER AIR BEGINNING ON WEDNESDAY AS MOISTURE ATTEMPTS
TO INVADE FROM THE SOUTHEAST WITH THE WEAKENING HIGH PRESSURE TO
OUR NORTH. WINDS WILL BEGIN TO WEAKEN ON SUNDAY AND CONTINUE TO RELAX
THROUGH NEXT WEEKEND...BUT WINDS WILL BE STRONG ENOUGH TO KEEP
SMALL CRAFT ADVISORIES UP THROUGH TUESDAY OR WEDNESDAY IN MANY
ZONES.
&&
.AVIATION...
MAINLY VFR CONDS TO PERSIST ACROSS THE NORTHEAST CARIB THROUGH
SUNDAY...EVEN WITH INTERMITTENT VCNTY SHRA AT MANY SITES INTO
EARLY SUN MORN. LOW LEVEL WIND FLOW TO CONTINUE FROM THE NORTHEAST
AT 10 TO 15 KT WITH SOME ISOLATED GUSTS NEAR 20 KT.
NATIONAL WEATHER SERVICE SAN JUAN PR
941 PM AST SAT JAN 1 2011
.UPDATE...THE BAND OF MOISTURE THAT MOVED THROUGH PUERTO RICO AND
THE U.S. VIRGIN ISLANDS BRINGING BRIEF BUT OCCASIONALLY HEAVY
SHOWERS HAS NEARLY PASSED. SHOWERS WILL ABATE SOMEWHAT
OVERNIGHT...BUT OTHER PATCHES WILL CONTINUE TO PROVIDE ISOLATED
SHOWERS...MAINLY IN THE NORTHERN VIRGIN ISLANDS AND ON THE
NORTHEAST SIDE OF THE CORDILLERA CENTRAL LATER TONIGHT AND SUNDAY.
COOL AIR ADVECTION WILL CONTINUE OVER THE AREA WHILE DRYING RUNS
THROUGH MONDAY AFTERNOON. THE GFS PROMISES MORE MOISTURE BEGINNING
TUESDAY AND WARMER AIR BEGINNING ON WEDNESDAY AS MOISTURE ATTEMPTS
TO INVADE FROM THE SOUTHEAST WITH THE WEAKENING HIGH PRESSURE TO
OUR NORTH. WINDS WILL BEGIN TO WEAKEN ON SUNDAY AND CONTINUE TO RELAX
THROUGH NEXT WEEKEND...BUT WINDS WILL BE STRONG ENOUGH TO KEEP
SMALL CRAFT ADVISORIES UP THROUGH TUESDAY OR WEDNESDAY IN MANY
ZONES.
&&
.AVIATION...
MAINLY VFR CONDS TO PERSIST ACROSS THE NORTHEAST CARIB THROUGH
SUNDAY...EVEN WITH INTERMITTENT VCNTY SHRA AT MANY SITES INTO
EARLY SUN MORN. LOW LEVEL WIND FLOW TO CONTINUE FROM THE NORTHEAST
AT 10 TO 15 KT WITH SOME ISOLATED GUSTS NEAR 20 KT.
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Re: Caribbean - Central America Weather Thread
WARMEST MAXIMUM TEMPERATURES IN EL SALVADOR IN ALMOST 8 MONTHS
Today was a pretty warm day in El Salvador, the minimum temperatures were near average but the maximum temperatures were 1°C or 2°C above average and the highest since May 2010. Today's lows and highs in El Salvador (below 10°C are in blue and above 32°C are in red):
Santa Ana 16.8°C (62.2°F) 31.0°C (87.8°F)
San Salvador 16.7°C (62.1°F) 32.2°C (90.0°F)
Las Pilas 7.7°C (45.9°F) 22.5°C (72.5°F)
San Miguel 19.5°C (67.1°F) 37.2°C (99.0°F)
The temperatures in other cities of the region:
Belize city, Belize 23°C (73.4°F) 29°C (84.2°F)
Guatemala city, Guatemala 14°C (57.2°F) 27.2°C (81.0°F)
Quetzaltenango, Guatemala 1.2°C (34.2°F) 24.2°C (75.6°F)
Zacapa, Guatemala 22°C (72°F) 35°C (95°F)
Tegucigalpa, Honduras 13°C (55°F) 26°C (79°F)
La Esperanza, Honduras 12°C (54°F) 24°C (75°F)
Choluteca, Honduras 22°C (72°F) 33°C (91.4°C)
Managua, Nicaragua 22°C (72°F) 32°C (90°F)
San Jose, Costa Rica 17.5°C (64°F) 23.4°C (74.1°F)
Panama city, Panama 23.2°C (73.8°F) 31.6°C (88.9°F)
Today was a pretty warm day in El Salvador, the minimum temperatures were near average but the maximum temperatures were 1°C or 2°C above average and the highest since May 2010. Today's lows and highs in El Salvador (below 10°C are in blue and above 32°C are in red):
Santa Ana 16.8°C (62.2°F) 31.0°C (87.8°F)
San Salvador 16.7°C (62.1°F) 32.2°C (90.0°F)
Las Pilas 7.7°C (45.9°F) 22.5°C (72.5°F)
San Miguel 19.5°C (67.1°F) 37.2°C (99.0°F)
The temperatures in other cities of the region:
Belize city, Belize 23°C (73.4°F) 29°C (84.2°F)
Guatemala city, Guatemala 14°C (57.2°F) 27.2°C (81.0°F)
Quetzaltenango, Guatemala 1.2°C (34.2°F) 24.2°C (75.6°F)
Zacapa, Guatemala 22°C (72°F) 35°C (95°F)
Tegucigalpa, Honduras 13°C (55°F) 26°C (79°F)
La Esperanza, Honduras 12°C (54°F) 24°C (75°F)
Choluteca, Honduras 22°C (72°F) 33°C (91.4°C)
Managua, Nicaragua 22°C (72°F) 32°C (90°F)
San Jose, Costa Rica 17.5°C (64°F) 23.4°C (74.1°F)
Panama city, Panama 23.2°C (73.8°F) 31.6°C (88.9°F)
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cycloneye
- Admin
- Posts: 145332
- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
- Location: San Juan, Puerto Rico
Re: Caribbean - Central America Weather Thread
Good morning.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
403 AM AST SUN JAN 2 2011
.SYNOPSIS...
HIGH PRESSURE CENTERED NEAR 30N/70W CURRENTLY HAS A SUPPORTING
DEEP RIDGE THROUGH THE TROPOSPHERE. THE RIDGE WILL BREAK DOWN
EARLY THIS WEEK STARTING WITH THE HIGHER LEVELS. BUT THE SURFACE
HIGH WILL KEEP TRADE WIND FLOW OVER PR/USVI BREEZY UNTIL ABOUT
MID-WEEK. THIS FLOW WILL BE MOIST ENOUGH TODAY/TONIGHT FOR SOME
SHOWERS THEN IT BECOMES DRIER.
&&
.DISCUSSION...
SCATTERED BUT SHALLOW SHOWERS CONTINUE MOVING TOWARDS PR IN
NORTHEAST FLOW. DIVERGENT FLOW AT 7H APPEARS TO ENHANCE THEIR
NUMBER AND STRENGTH. GFS SHOWS THE BEST 1000-700MB MOISTURE AND
DIVERGENCE OVER ITS TOP TO BE THIS MORNING AND AGAIN TONIGHT...
THEN THE FLOW IS MUCH DRIER BY TUE/18Z UNTIL DEEPER MOISTURE TRIES
TO ADVECT FROM THE CARIBBEAN ON WED. THESE SHOWERS WILL CONTINUE
ON THE WINDWARD SIDE OF PR AND IN USVI BUT VERY LITTLE ON THE
SOUTH AND SOUTHWEST SLOPES. BOOSTED POPS A LITTLE MAINLY TONIGHT
BASED ON RECENT HISTORY BUT OTHER ASPECTS OF FORECAST LOOK SOLID.
&&
.AVIATION...PREVAILING VFR CONDS EXPECTED AT ALL TAF SITES DURING THE
NEXT 24 HRS...HOWEVER VERY BRIEF MVFR CONDS WILL REMAIN POSSIBLE IN
AND AROUND TJSJ/TJBQ...TIST/TISX AND TNCM IN PASSING SHOWERS THROUGH
02/14Z. LOW LEVEL WIND FLOW TO CONTINUE FROM THE NORTHEAST AT 15 TO
20 KT WITH SOME HIGHER GUSTS.
&&
.MARINE...
THE PERSISTENT NORTHEAST FLOW WITH THE GIVEN FETCH AND WIND SPEED
WILL NOT ALLOW FOR WAVES TO DROP BELOW 7-8 FT. SO LITTLE CHANGE
IS EXPECTED UNTIL THE WINDS DECREASE A LITTLE...MAINLY MON NIGHT/
EARLY TUE. CURRENT FORECAST SHOWS THIS TREND NICELY AND HAVE LEFT
IT MOSTLY UNCHANGED.
&&
.PRELIMINARY POINT TEMPS/POPS...
SJU 80 70 79 70 / 40 50 20 20
STT 83 70 83 71 / 40 40 10 20
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
403 AM AST SUN JAN 2 2011
.SYNOPSIS...
HIGH PRESSURE CENTERED NEAR 30N/70W CURRENTLY HAS A SUPPORTING
DEEP RIDGE THROUGH THE TROPOSPHERE. THE RIDGE WILL BREAK DOWN
EARLY THIS WEEK STARTING WITH THE HIGHER LEVELS. BUT THE SURFACE
HIGH WILL KEEP TRADE WIND FLOW OVER PR/USVI BREEZY UNTIL ABOUT
MID-WEEK. THIS FLOW WILL BE MOIST ENOUGH TODAY/TONIGHT FOR SOME
SHOWERS THEN IT BECOMES DRIER.
&&
.DISCUSSION...
SCATTERED BUT SHALLOW SHOWERS CONTINUE MOVING TOWARDS PR IN
NORTHEAST FLOW. DIVERGENT FLOW AT 7H APPEARS TO ENHANCE THEIR
NUMBER AND STRENGTH. GFS SHOWS THE BEST 1000-700MB MOISTURE AND
DIVERGENCE OVER ITS TOP TO BE THIS MORNING AND AGAIN TONIGHT...
THEN THE FLOW IS MUCH DRIER BY TUE/18Z UNTIL DEEPER MOISTURE TRIES
TO ADVECT FROM THE CARIBBEAN ON WED. THESE SHOWERS WILL CONTINUE
ON THE WINDWARD SIDE OF PR AND IN USVI BUT VERY LITTLE ON THE
SOUTH AND SOUTHWEST SLOPES. BOOSTED POPS A LITTLE MAINLY TONIGHT
BASED ON RECENT HISTORY BUT OTHER ASPECTS OF FORECAST LOOK SOLID.
&&
.AVIATION...PREVAILING VFR CONDS EXPECTED AT ALL TAF SITES DURING THE
NEXT 24 HRS...HOWEVER VERY BRIEF MVFR CONDS WILL REMAIN POSSIBLE IN
AND AROUND TJSJ/TJBQ...TIST/TISX AND TNCM IN PASSING SHOWERS THROUGH
02/14Z. LOW LEVEL WIND FLOW TO CONTINUE FROM THE NORTHEAST AT 15 TO
20 KT WITH SOME HIGHER GUSTS.
&&
.MARINE...
THE PERSISTENT NORTHEAST FLOW WITH THE GIVEN FETCH AND WIND SPEED
WILL NOT ALLOW FOR WAVES TO DROP BELOW 7-8 FT. SO LITTLE CHANGE
IS EXPECTED UNTIL THE WINDS DECREASE A LITTLE...MAINLY MON NIGHT/
EARLY TUE. CURRENT FORECAST SHOWS THIS TREND NICELY AND HAVE LEFT
IT MOSTLY UNCHANGED.
&&
.PRELIMINARY POINT TEMPS/POPS...
SJU 80 70 79 70 / 40 50 20 20
STT 83 70 83 71 / 40 40 10 20
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Happy new year to all my carib friends and best wishes 
.
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cycloneye
- Admin
- Posts: 145332
- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
- Location: San Juan, Puerto Rico
Re: Caribbean - Central America Weather Thread
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
245 PM AST SUN JAN 2 2011
.SYNOPSIS...HIGH PRESSURE WILL CONTINUE OVER THE WESTERN ATLANTIC
THROUGH MONDAY. A SECONDARY AREA OF HIGH PRESSURE WILL BUILD
ACROSS THE WESTERN ATLANTIC THROUGH THURSDAY. WINDS WILL RELAX
LATER IN THE WEEK.
&&
.DISCUSSION....NO CHANGES IN FORECAST REASONING FROM LAST 24
HOURS. PATCHES OF LOW LEVEL MOISTURE HAS BEEN AFFECTING MOST OF
THE AREA...WITH INTERVALS OF SHOWERS AFFECTING THE LOCAL ISLANDS.
THESE SHOWERS ARE MOVING QUICKLY TOWARDS THE WEST...THEREFORE...RAINFALL
ACCUMULATION HAS NOT BEEN SIGNIFICANT. BETTER SUNSHINE AND LESS
CLOUD COVERAGE IS EXPECTED TOMORROW AND TUESDAY AS DRIER AIR MOVES
ACROSS THE AREA. NAM12 MODEL DEPICTED NICELY THE CURRENT
CONDITIONS...WITH PATCHES OF LOW LEVEL MOISTURE CONTINUING THROUGH
AT LEAST MONDAY AFTERNOON...AND DRIER AIR MOVING IN FROM THE EAST
NORTHEAST. MEANWHILE...THE GFS SHOWS BETTER CLOUD COVER THAN THE
NAM...SPECIALLY AT 850MB LEVEL. BOTH MODEL STILL AGREED BEST
MOISTURE WILL OCCUR WEDNESDAY WHEN DEEPER MOISTURE TRIES TO ADVECT
FROM THE CARIBBEAN. HIGH PRESSURE IS LOCATED NORTH OF THE
AREA...WHICH WILL MAINTAIN A FRESH TRADE WIND FLOW ACROSS THE
REGION. THIS HIGH WILL MOVE EAST...AS A COLD FRONT CURRENTLY
ACROSS THE SOUTHEASTERN U.S...MOVES ACROSS THE WESTERN ATLANTIC.
HOWEVER...THIS FRONTAL BOUNDARY IS NOT EXPECTED TO APPROACH THE
LOCAL AREA. ANOTHER HIGH PRESSURE WILL BUILD BEHIND THIS
FRONT...WHICH WILL KEEP AN EAST TO NORTHEAST WIND FLOW ACROSS THE
LOCAL AREA.
IN THE LONG TERM...GFS COMPUTER MODEL FORECAST A STRONGER COLD
FRONT WILL MOVE SOUTHEAST AND COULD GET CLOSER TO THE LOCAL AREA
BY THE SECOND WEEK OF THE MONTH. THE MODEL ALSO SUGGEST A
SIGNIFICANT DECREASE IN WINDS SPEED...AS THIS SYSTEM APPROACH THE
LOCAL AREA...AND THE AFOREMENTIONED HIGH WEAKENS. SINCE THIS IS
FORECAST TO HAPPEN TEN DAYS FROM NOW...WENT WITH LOCAL CLIMATOLOGY
IN LONG TERM FORECAST...WITH SHOWERS IN THE NIGHT MAINLY ACROSS
THE NORTHERN HALF OF THE ISLANDS...AND NORMAL TEMPERATURES FOR THIS
TIME OF THE YEAR.
&&
.AVIATION...PREVAILING VFR CONDS EXPECTED AT ALL TAF SITES DURING THE
FORECAST PERIOD. SCT-BKN CIGS BETWEEN FL020 AND FL060...WITH PERIODS
OF MVFR CONDS AND MOUNTAIN OBSCURATIONS WILL BE POSSIBLE ON THE
WINDWARD SIDE OF THE ISLANDS. SFC WINDS WILL REMAIN FROM THE EAST
NORTHEAST AT 10 TO 20 KTS WITH SOME ISOLATED GUSTS NEAR 25 KT.
&&
.MARINE...THE PERSISTENT NORTHEAST FLOW WITH THE GIVEN FETCH AND WIND
SPEED WILL NOT ALLOW FOR WAVES TO DROP BELOW 7-8 FT. SO LITTLE
CHANGE IS EXPECTED UNTIL THE WINDS DECREASE A LITTLE.
&&
.PRELIMINARY POINT TEMPS/POPS...
SJU 71 80 69 80 / 50 50 20 20
STT 70 81 70 83 / 40 40 20 20
NATIONAL WEATHER SERVICE SAN JUAN PR
245 PM AST SUN JAN 2 2011
.SYNOPSIS...HIGH PRESSURE WILL CONTINUE OVER THE WESTERN ATLANTIC
THROUGH MONDAY. A SECONDARY AREA OF HIGH PRESSURE WILL BUILD
ACROSS THE WESTERN ATLANTIC THROUGH THURSDAY. WINDS WILL RELAX
LATER IN THE WEEK.
&&
.DISCUSSION....NO CHANGES IN FORECAST REASONING FROM LAST 24
HOURS. PATCHES OF LOW LEVEL MOISTURE HAS BEEN AFFECTING MOST OF
THE AREA...WITH INTERVALS OF SHOWERS AFFECTING THE LOCAL ISLANDS.
THESE SHOWERS ARE MOVING QUICKLY TOWARDS THE WEST...THEREFORE...RAINFALL
ACCUMULATION HAS NOT BEEN SIGNIFICANT. BETTER SUNSHINE AND LESS
CLOUD COVERAGE IS EXPECTED TOMORROW AND TUESDAY AS DRIER AIR MOVES
ACROSS THE AREA. NAM12 MODEL DEPICTED NICELY THE CURRENT
CONDITIONS...WITH PATCHES OF LOW LEVEL MOISTURE CONTINUING THROUGH
AT LEAST MONDAY AFTERNOON...AND DRIER AIR MOVING IN FROM THE EAST
NORTHEAST. MEANWHILE...THE GFS SHOWS BETTER CLOUD COVER THAN THE
NAM...SPECIALLY AT 850MB LEVEL. BOTH MODEL STILL AGREED BEST
MOISTURE WILL OCCUR WEDNESDAY WHEN DEEPER MOISTURE TRIES TO ADVECT
FROM THE CARIBBEAN. HIGH PRESSURE IS LOCATED NORTH OF THE
AREA...WHICH WILL MAINTAIN A FRESH TRADE WIND FLOW ACROSS THE
REGION. THIS HIGH WILL MOVE EAST...AS A COLD FRONT CURRENTLY
ACROSS THE SOUTHEASTERN U.S...MOVES ACROSS THE WESTERN ATLANTIC.
HOWEVER...THIS FRONTAL BOUNDARY IS NOT EXPECTED TO APPROACH THE
LOCAL AREA. ANOTHER HIGH PRESSURE WILL BUILD BEHIND THIS
FRONT...WHICH WILL KEEP AN EAST TO NORTHEAST WIND FLOW ACROSS THE
LOCAL AREA.
IN THE LONG TERM...GFS COMPUTER MODEL FORECAST A STRONGER COLD
FRONT WILL MOVE SOUTHEAST AND COULD GET CLOSER TO THE LOCAL AREA
BY THE SECOND WEEK OF THE MONTH. THE MODEL ALSO SUGGEST A
SIGNIFICANT DECREASE IN WINDS SPEED...AS THIS SYSTEM APPROACH THE
LOCAL AREA...AND THE AFOREMENTIONED HIGH WEAKENS. SINCE THIS IS
FORECAST TO HAPPEN TEN DAYS FROM NOW...WENT WITH LOCAL CLIMATOLOGY
IN LONG TERM FORECAST...WITH SHOWERS IN THE NIGHT MAINLY ACROSS
THE NORTHERN HALF OF THE ISLANDS...AND NORMAL TEMPERATURES FOR THIS
TIME OF THE YEAR.
&&
.AVIATION...PREVAILING VFR CONDS EXPECTED AT ALL TAF SITES DURING THE
FORECAST PERIOD. SCT-BKN CIGS BETWEEN FL020 AND FL060...WITH PERIODS
OF MVFR CONDS AND MOUNTAIN OBSCURATIONS WILL BE POSSIBLE ON THE
WINDWARD SIDE OF THE ISLANDS. SFC WINDS WILL REMAIN FROM THE EAST
NORTHEAST AT 10 TO 20 KTS WITH SOME ISOLATED GUSTS NEAR 25 KT.
&&
.MARINE...THE PERSISTENT NORTHEAST FLOW WITH THE GIVEN FETCH AND WIND
SPEED WILL NOT ALLOW FOR WAVES TO DROP BELOW 7-8 FT. SO LITTLE
CHANGE IS EXPECTED UNTIL THE WINDS DECREASE A LITTLE.
&&
.PRELIMINARY POINT TEMPS/POPS...
SJU 71 80 69 80 / 50 50 20 20
STT 70 81 70 83 / 40 40 20 20
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tropicana
- Category 5
- Posts: 8056
- Joined: Sat Sep 27, 2003 6:48 pm
- Location: Niagara Falls, Ontario, Canada
- Contact:
Re: Caribbean - Central America Weather Thread
Regional Highs and Rainfall (rain is 7pmET Sat-7pmET Sun) for
Sun Jan 02 2011
Piarco Airport, Trinidad 32.0C 89F trace
Maraval, NW Trinidad 28.2C 83F 6.1mm
Crown Point, Tobago 29.5C 85F 1.2mm
Point Salines, Grenada 30.1C 86F
Grantley Adams, Barbados 28.5C 84F trace
Arnos Vale, St Vincent 29.3C 85F
Hewannora Airport, St Lucia 28.5C 84F 0.7mm
Vigie Airport, St Lucia 28.0C 82F trace
Le Lamentin, Martinique 28.5C 84F 4.4mm (low was 20.2C 68F)
Melville Hall, Dominica 28.4C 83F 4.2mm (low was 21.3C 70F)
Golden Rock, St Kitts 27.2C 81F 8.9mm
VC Bird, Antigua 27.1C 81F 2.2mm
West End, Anguilla 26.8C 80F 3.1mm
San Juan, Puerto Rico 26.1C 79F 9.7mm
Owen Roberts, Grand Cayman 27.4C 81F
Kingston, Jamaica 30.3C 86F trace
Montego Bay, Jamaica 28.5C 84F trace
Havana, Cuba 27.5C 82F
Key West, Florida 23.9C 75F
Miami, Florida 25.6C 78F
Nassau, Bahamas 24.7C 77F
Hamilton, Bermuda 19.6C 68F
Hato Airport, Curacao 29.0C 84F
Queen Beatrix, Aruba 29.8C 86F
Flamingo, Bonaire 29.8C 86F
-justin-
Sun Jan 02 2011
Piarco Airport, Trinidad 32.0C 89F trace
Maraval, NW Trinidad 28.2C 83F 6.1mm
Crown Point, Tobago 29.5C 85F 1.2mm
Point Salines, Grenada 30.1C 86F
Grantley Adams, Barbados 28.5C 84F trace
Arnos Vale, St Vincent 29.3C 85F
Hewannora Airport, St Lucia 28.5C 84F 0.7mm
Vigie Airport, St Lucia 28.0C 82F trace
Le Lamentin, Martinique 28.5C 84F 4.4mm (low was 20.2C 68F)
Melville Hall, Dominica 28.4C 83F 4.2mm (low was 21.3C 70F)
Golden Rock, St Kitts 27.2C 81F 8.9mm
VC Bird, Antigua 27.1C 81F 2.2mm
West End, Anguilla 26.8C 80F 3.1mm
San Juan, Puerto Rico 26.1C 79F 9.7mm
Owen Roberts, Grand Cayman 27.4C 81F
Kingston, Jamaica 30.3C 86F trace
Montego Bay, Jamaica 28.5C 84F trace
Havana, Cuba 27.5C 82F
Key West, Florida 23.9C 75F
Miami, Florida 25.6C 78F
Nassau, Bahamas 24.7C 77F
Hamilton, Bermuda 19.6C 68F
Hato Airport, Curacao 29.0C 84F
Queen Beatrix, Aruba 29.8C 86F
Flamingo, Bonaire 29.8C 86F
-justin-
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cycloneye
- Admin
- Posts: 145332
- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
- Location: San Juan, Puerto Rico
Re: Caribbean - Central America Weather Thread
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN JUAN PR
953 PM AST SUN JAN 2 2011
.UPDATE...SHOWERS HAVE TAPERED OFF OVER PUERTO RICO AND FEW WERE
SEEN OVER SAINT THOMAS AND SAINT JOHN. SCATTERED SHOWERS WERE
STILL SEEN OVER THE INTERIOR OF PUERTO RICO DURING THE LATE
EVENING HOURS AND MANY WERE OVER THE ATLANTIC TO THE NORTH AND THE
CARIBBEAN TO THE SOUTH. LATEST SATELLITE IMAGERY SUGGESTS A FEW
HOURS BREAK BEFORE THE NEXT BAND OF SHOWERS ARRIVES ON THE NORTH
AND NORTHEAST COAST OF PUERTO RICO. THESE MAY LAST WELL INTO THE
MORNING HOURS. GFS MODEL DOES NOT HAVE SUFFICIENT RESOLUTION TO
RESOLVE MOISTURE BAND AS IN WHAT APPEARS TO BE SPEED CONVERGENCE
NEAR THE AREA AND NAM HAS MANY SMALL GLOBULES OF MOISTURE...
IN AIR THAT IS PROBABLY BEING DEPICTED WAY TOO DRY...MOVING INTO
THE LOCAL AREA BETWEEN NOW AND TUESDAY. BUT BOTH MODELS AGREE ON
INCREASING MOISTURE TUESDAY NIGHT FROM THE EAST SOUTHEAST THAT
BRINGS THE BEST CHANCES OF RAIN TO THE EAST HALF OF PUERTO
RICO...CULEBRA AND VIEQUES. THE U.S. VIRGIN ISLANDS SHOULD SHARE
IN SOME OF THIS RAIN THOUGH MODELS SHOW VERY LIGHT AMOUNTS AND MAY
BE UNDER FORECASTING RAIN AS THEY DID IN SPADES TODAY FOR THE
NORTHERN COASTLINES AND COASTAL PLAINS. NO SIGNIFICANT CHANGES MADE TO
THE FORECAST OR THE REASONING BELOW...BUT DID INCREASE THE
CERTAINTY OF RAIN IN SOME AREAS DURING THE UPCOMING WEEK.
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Re: Caribbean - Central America Weather Thread
The warmth continues in El Salvador, actually the lows this morning were warmer than yesterday and San Salvador experienced a high hotter than yesterday.
Santa Ana 18.3°C (64.9°F) 31.1°C (88.0°F)
San Salvador 18.2°C (64.8°F) 33°C (91.4°F)
Las Pilas 10.6°C (51.1°F) 18.6°C (65.5°F)
San Miguel 21.2°C (70.2°F) 37.0°C (98.6°F)
The temperatures in other cities of the region:
Belize city, Belize 23°C (73°F) 29°C (84°F)
Guatemala city, Guatemala 14.1°C (57.4°F) 23.6°C (74.5°F)
Quetzaltenango, Guatemala 0.6°C (33.1°F) 19.6°C (67.3°F)
Zacapa, Guatemala 22°C (72°F) 30°C (86°F)
Tegucigalpa, Honduras 18°C (64°F) 28°C (82°F)
La Esperanza, Honduras 10°C (50°F) 22°C (72°F)
Choluteca, Honduras 23°C (73°F) 36°C (97°C)
Esteli, Nicaragua 15.4°C (59.7°F) 20.9°C (69.6°F)
Managua, Nicaragua 22°C (72°F) 31°C (88°F)
San Jose, Costa Rica 17.1°C (62.8°F) 21.2°C (70.2°F)
Panama city, Panama 22.5°C (72.5°F) 31.1°C (88.0°F)
Santa Ana 18.3°C (64.9°F) 31.1°C (88.0°F)
San Salvador 18.2°C (64.8°F) 33°C (91.4°F)
Las Pilas 10.6°C (51.1°F) 18.6°C (65.5°F)
San Miguel 21.2°C (70.2°F) 37.0°C (98.6°F)
The temperatures in other cities of the region:
Belize city, Belize 23°C (73°F) 29°C (84°F)
Guatemala city, Guatemala 14.1°C (57.4°F) 23.6°C (74.5°F)
Quetzaltenango, Guatemala 0.6°C (33.1°F) 19.6°C (67.3°F)
Zacapa, Guatemala 22°C (72°F) 30°C (86°F)
Tegucigalpa, Honduras 18°C (64°F) 28°C (82°F)
La Esperanza, Honduras 10°C (50°F) 22°C (72°F)
Choluteca, Honduras 23°C (73°F) 36°C (97°C)
Esteli, Nicaragua 15.4°C (59.7°F) 20.9°C (69.6°F)
Managua, Nicaragua 22°C (72°F) 31°C (88°F)
San Jose, Costa Rica 17.1°C (62.8°F) 21.2°C (70.2°F)
Panama city, Panama 22.5°C (72.5°F) 31.1°C (88.0°F)
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cycloneye
- Admin
- Posts: 145332
- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
- Location: San Juan, Puerto Rico
Re: Caribbean - Central America Weather Thread
Good morning.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
549 AM AST MON JAN 3 2011
.SYNOPSIS...A SURFACE RIDGE EXTENDING EAST ALONG 15 NORTH FROM A 1022
MB HIGH NEAR 25N69W IS EXPECTED TO ERODE LATER TODAY. A SURFACE
HIGH PRESSURE CENTER WILL BUILD AGAIN ACROSS THE WESTERN ATLANTIC
TUESDAY THROUGH AT LEAST THURSDAY. WINDS WILL BEGIN TO WEAKEN ON
TUESDAY AND CONTINUE TO RELAX THROUGH THE WEEKEND.
&&
.DISCUSSION...LATEST TJSJ 03/00Z SOUNDING AND MIMIC-TPW PRODUCT
INDICATED A SLIGHTLY DECREASE OF MOISTURE ACROSS THE LOCAL AREA.
HOWEVER...PATCHES OF LOW LEVEL MOISTURE WILL CONTINUE TO MOVE
ACROSS THE LOCAL AREA FROM TIME TO TIME...RESULTING IN INTERVALS
OF CLOUDINESS AND A FEW PASSING SHOWERS DURING THE MORNING HOURS.
SHOWERS WILL CONTINUE TO CONCENTRATE OVER THE NORTHERN SLOPES OF
PUERTO RICO...CULEBRA AND VIEQUES.
WEATHER CONDITIONS WILL CONTINUE TO SLOWLY IMPROVE TODAY AND TUESDAY
AS DRIER AIR CONTINUES TO MOVE ACROSS THE AREA. NAM AND GFS AGREE
ON INCREASING MOISTURE TUESDAY NIGHT FROM THE EAST SOUTHEAST THAT
BRINGS THE BEST CHANCES OF RAIN TO THE EAST HALF OF PUERTO RICO...
CULEBRA...VIEQUES AND THE VI. IN ADDITION...A HIGH PRESSURE WILL
THEN BUILD ACROSS THE WESTERN ATLANTIC TO SUSTAIN A NORTHEASTERLY
FLOW ACROSS THE LOCAL ISLANDS. AS A RESULT...CONTINUE TO EXPECT
SHALLOW MOISTURE ACROSS THE LOCAL AREA TO PRODUCE SOME CLOUDINESS
AND A FEW SHOWERS TUESDAY NIGHT AND PERSISTING THROUGH AT LEAST
THE END OF THE WORK WEEK. WIDESPREAD PRECIPITATION IS NOT EXPECTED
AT THIS TIME.
&&
.AVIATION...DEEP NORTHEAST WIND FLOW CONTINUES TO TRANSPORT CLOUDS
AND SHOWERS OVER THE AREA. AREA OF STRATU-CUMULUS WITH EMBEDDED
SHOWERS WILL BRING TEMPO MVFR CONDITIONS FROM 09Z-16Z WITH BKN-OVC
CLOUDS AND VSBY 5 MILES OR GREATER ACROSS IST AND JSJ. ISO IFR
CONDITIONS CAN BE EXPECTED DURING SAME TIME PERIOD NEAR TJNR WITH
BKN-OVC CLOUDS 12-25KFT AND VSBY 2-4 MILES IN SHOWERS.
TKPK...MFVR THROUGH 18Z WITH CIGS AROUND 18KFT AND ISO SHWRS.
PREDOMINATELY VFR CONDITIONS ARE EXPECTED ACROSS TJBQ...TJMZ...TJPS...
AND TNCM...HOWEVER MVFR CONDS WITH CIGS AROUND 28KFT AND VSBY TO
4 MILE ARE PSBL THROUGH 16Z.
&&
.MARINE...FRESH NORTHEASTERLY TRADE WINDS WILL CONTINUE TO
GENERATE HAZARDOUS MARINE CONDITIONS THROUGH AT LEAST WEDNESDAY.
&&
.PRELIMINARY POINT TEMPS/POPS...
SJU 80 70 81 71 / 50 20 30 50
STT 82 71 83 73 / 40 20 30 50
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
549 AM AST MON JAN 3 2011
.SYNOPSIS...A SURFACE RIDGE EXTENDING EAST ALONG 15 NORTH FROM A 1022
MB HIGH NEAR 25N69W IS EXPECTED TO ERODE LATER TODAY. A SURFACE
HIGH PRESSURE CENTER WILL BUILD AGAIN ACROSS THE WESTERN ATLANTIC
TUESDAY THROUGH AT LEAST THURSDAY. WINDS WILL BEGIN TO WEAKEN ON
TUESDAY AND CONTINUE TO RELAX THROUGH THE WEEKEND.
&&
.DISCUSSION...LATEST TJSJ 03/00Z SOUNDING AND MIMIC-TPW PRODUCT
INDICATED A SLIGHTLY DECREASE OF MOISTURE ACROSS THE LOCAL AREA.
HOWEVER...PATCHES OF LOW LEVEL MOISTURE WILL CONTINUE TO MOVE
ACROSS THE LOCAL AREA FROM TIME TO TIME...RESULTING IN INTERVALS
OF CLOUDINESS AND A FEW PASSING SHOWERS DURING THE MORNING HOURS.
SHOWERS WILL CONTINUE TO CONCENTRATE OVER THE NORTHERN SLOPES OF
PUERTO RICO...CULEBRA AND VIEQUES.
WEATHER CONDITIONS WILL CONTINUE TO SLOWLY IMPROVE TODAY AND TUESDAY
AS DRIER AIR CONTINUES TO MOVE ACROSS THE AREA. NAM AND GFS AGREE
ON INCREASING MOISTURE TUESDAY NIGHT FROM THE EAST SOUTHEAST THAT
BRINGS THE BEST CHANCES OF RAIN TO THE EAST HALF OF PUERTO RICO...
CULEBRA...VIEQUES AND THE VI. IN ADDITION...A HIGH PRESSURE WILL
THEN BUILD ACROSS THE WESTERN ATLANTIC TO SUSTAIN A NORTHEASTERLY
FLOW ACROSS THE LOCAL ISLANDS. AS A RESULT...CONTINUE TO EXPECT
SHALLOW MOISTURE ACROSS THE LOCAL AREA TO PRODUCE SOME CLOUDINESS
AND A FEW SHOWERS TUESDAY NIGHT AND PERSISTING THROUGH AT LEAST
THE END OF THE WORK WEEK. WIDESPREAD PRECIPITATION IS NOT EXPECTED
AT THIS TIME.
&&
.AVIATION...DEEP NORTHEAST WIND FLOW CONTINUES TO TRANSPORT CLOUDS
AND SHOWERS OVER THE AREA. AREA OF STRATU-CUMULUS WITH EMBEDDED
SHOWERS WILL BRING TEMPO MVFR CONDITIONS FROM 09Z-16Z WITH BKN-OVC
CLOUDS AND VSBY 5 MILES OR GREATER ACROSS IST AND JSJ. ISO IFR
CONDITIONS CAN BE EXPECTED DURING SAME TIME PERIOD NEAR TJNR WITH
BKN-OVC CLOUDS 12-25KFT AND VSBY 2-4 MILES IN SHOWERS.
TKPK...MFVR THROUGH 18Z WITH CIGS AROUND 18KFT AND ISO SHWRS.
PREDOMINATELY VFR CONDITIONS ARE EXPECTED ACROSS TJBQ...TJMZ...TJPS...
AND TNCM...HOWEVER MVFR CONDS WITH CIGS AROUND 28KFT AND VSBY TO
4 MILE ARE PSBL THROUGH 16Z.
&&
.MARINE...FRESH NORTHEASTERLY TRADE WINDS WILL CONTINUE TO
GENERATE HAZARDOUS MARINE CONDITIONS THROUGH AT LEAST WEDNESDAY.
&&
.PRELIMINARY POINT TEMPS/POPS...
SJU 80 70 81 71 / 50 20 30 50
STT 82 71 83 73 / 40 20 30 50
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tropicana
- Category 5
- Posts: 8056
- Joined: Sat Sep 27, 2003 6:48 pm
- Location: Niagara Falls, Ontario, Canada
- Contact:
Re: Caribbean - Central America Weather Thread
Mon Jan 03 2011
Temperatures were allowed to cool more efficiently overnight thanks to a drier air mass with lower dewpoints across the region.
Coolest overnight lows in Southern Caribbean since early last year at many locales recorded this morning, including:-
Piarco Airport, Trinidad 19.7C 68F
Maraval, NW Trinidad 20.2C 68F
Rockley, S. Barbados 20.7C 69F
Crown Point Airport, Tobago 21.0C 70F
Grantley Adams Ariport, Barbados 21.4C 70F
-justin-
Temperatures were allowed to cool more efficiently overnight thanks to a drier air mass with lower dewpoints across the region.
Coolest overnight lows in Southern Caribbean since early last year at many locales recorded this morning, including:-
Piarco Airport, Trinidad 19.7C 68F
Maraval, NW Trinidad 20.2C 68F
Rockley, S. Barbados 20.7C 69F
Crown Point Airport, Tobago 21.0C 70F
Grantley Adams Ariport, Barbados 21.4C 70F
-justin-
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Re: Caribbean - Central America Weather Thread
It seems that finally we're going to have a relief for the high temperatures of the last few days as dry and relatively cool northerly winds are blowing across Central America. The minimum temperatures this morning:
Mountain Pine Ridge, Belize 17.3°C/63.1°F
Belize city, Belize 21°C/70°F
Guatemala city, Guatemala 12.8°C/55.0°F
Quetzaltenango, Guatemala 3.3°C/37.9°F
Zacapa, Guatemala 19°C/66°F
San Salvador, El Salvador 16.7°C/62.1°F
Las Pilas, El Salvador 10.7°C/51.3°F
San Miguel, El Salvador 19.3°C/66.7°F
La Esperanza, Honduras 11°C/52°F
Tegucigalpa, Honduras 16°C/61°F
Choluteca, Honduras 24°C/75°F
Estelí, Nicaragua 13.1°C/55.6°F
Managua, Nicaragua 22°C/71.6°F
San Jose, Costa Rica 16.4°C/61.5°F
Irazu volcano, Costa Rica 1.8°C/35.2°F
Mountain Pine Ridge, Belize 17.3°C/63.1°F
Belize city, Belize 21°C/70°F
Guatemala city, Guatemala 12.8°C/55.0°F
Quetzaltenango, Guatemala 3.3°C/37.9°F
Zacapa, Guatemala 19°C/66°F
San Salvador, El Salvador 16.7°C/62.1°F
Las Pilas, El Salvador 10.7°C/51.3°F
San Miguel, El Salvador 19.3°C/66.7°F
La Esperanza, Honduras 11°C/52°F
Tegucigalpa, Honduras 16°C/61°F
Choluteca, Honduras 24°C/75°F
Estelí, Nicaragua 13.1°C/55.6°F
Managua, Nicaragua 22°C/71.6°F
San Jose, Costa Rica 16.4°C/61.5°F
Irazu volcano, Costa Rica 1.8°C/35.2°F
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cycloneye
- Admin
- Posts: 145332
- Age: 68
- Joined: Thu Oct 10, 2002 10:54 am
- Location: San Juan, Puerto Rico
Re: Caribbean - Central America Weather Thread
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
331 PM AST MON JAN 3 2011
.SYNOPSIS...BREEZY NORTHEASTERLY WINDS...AND MAINLY
NOCTURNAL...QUICK PASSING TRADE WIND SHOWERS...ARE EXPECTED
ACROSS THE LOCAL ISLANDS FOR THE NEXT SEVERAL DAYS. THE OLD
FRONTAL BOUNDARY TO THE SOUTH OF THE LOCAL ISLANDS MAY BRING SOME
ADDITIONAL SHOWER ACTIVITY TO SAINT CROIX TOMORROW AND
WEDNESDAY...BUT WIDESPREAD PRECIPITATION ACROSS PUERTO RICO OR THE
NORTHERN VI IS NOT EXPECTED AT THIS TIME.
&&
.DISCUSSION...EXPECT THE REMNANTS OF AN OLD FRONTAL BOUNDARY TO THE
SOUTH OF THE LOCAL ISLANDS TO BEGIN TO LIFT NORTHWARD ACROSS SAINT
CROIX EARLY TUESDAY MORNING...WHILE IT CONTINUES TO WEAKEN. WHILE
THE BULK OF THE MOISTURE ASSOCIATED WITH THIS OLD BOUNDARY IS
EXPECTED TO REMAIN SOUTH OF THE LOCAL ISLANDS THROUGH THE MIDDLE
OF THE WEEK...EXPECT CONTINUED...MAINLY NOCTURNAL...TRADE WIND
SHOWERS ACROSS THE NORTHERN THIRD OF PUERTO RICO AND THE NORTHERN
VI EACH MORNING...WITH A FEW SHOWERS NEAR THE AXIS OF THIS OLD
FRONTAL BOUNDARY AS IT CONTINUE TO WEAKEN AND MEANDER SOUTH OF
THE LOCAL AREA THROUGH THE END OF THE WEEK. WITH THE AREA OF
SURFACE HIGH PRESSURE ACROSS THE WESTERN ATLANTIC EXPECTED TO BE
REINFORCED TOMORROW THROUGH WEDNESDAY...EXPECT CONTINUED LOCALLY
BREEZY CONDITIONS THROUGH AT LEAST THURSDAY...WHEN THE PRESSURE
GRADIENT IS EXPECTED TO RELAX ACROSS THE LOCAL ISLANDS.
&&
.AVIATION...VFR CONDS WILL PREVAIL ACROSS MOST TAF SITES THROUGH AT
LEAST THE NEXT 12 HOURS. HOWEVER...BRIEF PERIODS OF MVFR CONDS WILL
BE POSSIBLE IN PASSING SHWRS ACROSS TNCM AND TKPK. ENE WINDS AT 10
TO 20 KNOTS FROM JUST OFF THE SURFACE UP TO FL050 WILL DECREASE AT
10 TO 15 KNOTS AFTER SUNSET.
&&
.MARINE...FRESH TO LOCALLY STRONG NORTHEASTERLY TRADE WINDS WILL
PERSIST ACROSS THE REGIONAL WATERS THROUGH THE MIDDLE OF THE
WEEK...HELPING TO GENERATE ROUGH AND HAZARDOUS MARINE CONDITIONS
THROUGH AT LEAST WEDNESDAY.
&&
.PRELIMINARY POINT TEMPS/POPS...
SJU 69 80 70 80 / 20 30 50 50
STT 70 83 72 83 / 20 30 50 50
NATIONAL WEATHER SERVICE SAN JUAN PR
331 PM AST MON JAN 3 2011
.SYNOPSIS...BREEZY NORTHEASTERLY WINDS...AND MAINLY
NOCTURNAL...QUICK PASSING TRADE WIND SHOWERS...ARE EXPECTED
ACROSS THE LOCAL ISLANDS FOR THE NEXT SEVERAL DAYS. THE OLD
FRONTAL BOUNDARY TO THE SOUTH OF THE LOCAL ISLANDS MAY BRING SOME
ADDITIONAL SHOWER ACTIVITY TO SAINT CROIX TOMORROW AND
WEDNESDAY...BUT WIDESPREAD PRECIPITATION ACROSS PUERTO RICO OR THE
NORTHERN VI IS NOT EXPECTED AT THIS TIME.
&&
.DISCUSSION...EXPECT THE REMNANTS OF AN OLD FRONTAL BOUNDARY TO THE
SOUTH OF THE LOCAL ISLANDS TO BEGIN TO LIFT NORTHWARD ACROSS SAINT
CROIX EARLY TUESDAY MORNING...WHILE IT CONTINUES TO WEAKEN. WHILE
THE BULK OF THE MOISTURE ASSOCIATED WITH THIS OLD BOUNDARY IS
EXPECTED TO REMAIN SOUTH OF THE LOCAL ISLANDS THROUGH THE MIDDLE
OF THE WEEK...EXPECT CONTINUED...MAINLY NOCTURNAL...TRADE WIND
SHOWERS ACROSS THE NORTHERN THIRD OF PUERTO RICO AND THE NORTHERN
VI EACH MORNING...WITH A FEW SHOWERS NEAR THE AXIS OF THIS OLD
FRONTAL BOUNDARY AS IT CONTINUE TO WEAKEN AND MEANDER SOUTH OF
THE LOCAL AREA THROUGH THE END OF THE WEEK. WITH THE AREA OF
SURFACE HIGH PRESSURE ACROSS THE WESTERN ATLANTIC EXPECTED TO BE
REINFORCED TOMORROW THROUGH WEDNESDAY...EXPECT CONTINUED LOCALLY
BREEZY CONDITIONS THROUGH AT LEAST THURSDAY...WHEN THE PRESSURE
GRADIENT IS EXPECTED TO RELAX ACROSS THE LOCAL ISLANDS.
&&
.AVIATION...VFR CONDS WILL PREVAIL ACROSS MOST TAF SITES THROUGH AT
LEAST THE NEXT 12 HOURS. HOWEVER...BRIEF PERIODS OF MVFR CONDS WILL
BE POSSIBLE IN PASSING SHWRS ACROSS TNCM AND TKPK. ENE WINDS AT 10
TO 20 KNOTS FROM JUST OFF THE SURFACE UP TO FL050 WILL DECREASE AT
10 TO 15 KNOTS AFTER SUNSET.
&&
.MARINE...FRESH TO LOCALLY STRONG NORTHEASTERLY TRADE WINDS WILL
PERSIST ACROSS THE REGIONAL WATERS THROUGH THE MIDDLE OF THE
WEEK...HELPING TO GENERATE ROUGH AND HAZARDOUS MARINE CONDITIONS
THROUGH AT LEAST WEDNESDAY.
&&
.PRELIMINARY POINT TEMPS/POPS...
SJU 69 80 70 80 / 20 30 50 50
STT 70 83 72 83 / 20 30 50 50
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Re: Caribbean - Central America Weather Thread
Good afternoon, northerly winds are still blowing in Central America, these are the strongest wind gusts registered in some stations:
Guatemala city, Guatemala 60 km/h (38 mph)
Ishuatan, El salvador 46 km/h (29 mph)
San Salvador, El Salvador 30 km/h (19 mph)
La Esperanza, Honduras 52 km/h (33 mph)
Mountain Pine Ridge, Belize 21 km/h (13 mph)
Esteli, Nicaragua 46 km/h (29 mph)
San Jose, Costa Rica 49 km/h (31 mph)
Guatemala city, Guatemala 60 km/h (38 mph)
Ishuatan, El salvador 46 km/h (29 mph)
San Salvador, El Salvador 30 km/h (19 mph)
La Esperanza, Honduras 52 km/h (33 mph)
Mountain Pine Ridge, Belize 21 km/h (13 mph)
Esteli, Nicaragua 46 km/h (29 mph)
San Jose, Costa Rica 49 km/h (31 mph)
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