Caribbean - Central America Weather

[Macrocane]

Piarco Int'l, Central Trinidad received another 32mm of rain in 6 hours ending at 2pm local lime, ( a total of 49mm for the 24 hours which is a normal amount for a rainy season day, not a January day). The monh's total has jumped then to 172.2mm...which is even wetter than December 2010 which saw 153.9mm at the airport. Unofficially, its now the 4th wettest January on record. The wettest January is unlikely to be challenged as the month ends in just 2 days.

Thanks for those updates tropicana. I wonder if the other islands have had a wetter than normal January too.

[Macrocane]

An earthquake swarm has been registered in the town of Los Naranjos in the southwestern mountain chain of El Salvador, fortunately no damages have been reported. Los Naranjos is not only one of the wettest and coldest places of the country but one of the most seismic too. I've posted the info about the earthquakes in the El Salvador seismic activity thread

[Macrocane]

The northerly winds have diminished this afternoon, it was a short lived event but it produced minimum temperatures 1°C or 2°C cooler than yesterday in most of Belize, Guatemala, Honduras and El Salvador, the rest of the countries experienced only northerly winds without cooler temperatures.

Minimum Temperatures
Belize city, Belize 18°C (64°F)
Mounatin Pine Ridge, Belize 17.3°C (63.1°F)
Guatemala city, Guatemala 13°C (55°F)
Quetzaltenango, Guatemala 5.5°C (41.9°F)
Zacapa, Guatemala 20°C (68°F)
San Salvador, El Salvador 17.8°C (64.0°F)
Las Pilas, El Salvador 11.6°C (52.9°F)
San Miguel, El Salvador 21.1°C (70.0°F)
Tegucigalpa, Honduras 16°C (61°F)
La Esperanza, Honduras 13°C (55°F)
Choluteca, Honduras 26°C (79°F)
Esteli, Nicaragua 15.0°C (59.0°F)
Managua, Nicaragua 23°C (73°F)
San Jose, Costa Rica 16.1°C (61.0°F)
Irazu volcano, Costa Rica 3.3°C (37.9°F)
Panama city, Panama 21.4°C (70.5°F)
Boquete, Panama 14.8°C (58.6°F)

Maximum Temperatures
Belize city, Belize 26°C (79°F)
Mountain Pine Ridge, Belize 24.3°C (75.7°F)
Guatemala city, Guatemala 24°C (75°F)
Quetzaltenango, Guatemala 20.6°C (69.1°F)
Zacapa, Guatemala 27°C (81°F)
San Salvador, El Salvador 30.1°C (86.2°F)
Las Pilas, El Salvador 17.9°C (64.2°F)
San Miguel, El Salvador 37.1°C (98.8°F)
Tegucigalpa, Honduras 27°C (81°F)
La Esperanza, Honduras 19°C (66°F)
Choluteca, Honduras 35°C (95°F)
Managua, Nicaragua 32°C (90°F)
Esteli, Managua 24.2°C (75.6°F)
San Jose, Costa Rica 25.8°C (78.4°F)
Irazu volcano, Costa Rica 9.5°C (49.1°F)
Panama city, Panama 32.6°C (90.7°F)
Boquete, Panama 20.4°C (68.7°F)

Max Wind Gusts
Belize city, Belize 24 km/h (15 mph)
Guatemala city, Guatemala 40 km/h (25 mph)
San Salvador, El Salvador 30 km/h (19 mph)
Ishuatan, El Salvador 41 km/h (26 mph)
Nueva Ocotepeque, Honduras 54 km/h (34 mph)
Esteli, Nicaragua 56 km/h (35 mph)
San Jose, Costa Rica 47 km/h (29 mph)
Irazu volcano, Costa Rica 57 km/h (36 mph)
Panama city, Panama 43 km/h (27 mph)

[tropicana]

Showers over Trinidad and Tobago overnight, a pattern that has persisted quite frequently through the month, in this first month of the *dry* season.
Piarco International Airport, Central Trinidad recorded 17mm in the past 18 hours to 8am local time Saturday, Crown Point in Tobago saw 24.6mm in just 6 hours from 2am-8am local time Saturday.

The montly total at Piarco, Trinidad now stands near 140.0mm , well above the seasonal average rainfall for January which is 71mm. It is siginificant considering in January 2010, just 18.4mm of rain was recorded.

But still well below the record wettest January :
PIARCO AIRPORT, TRINIDAD (partial stats)

Jan 2005 232.7mm
Jan 2006 224.2mm
Jan 1984 217.6mm
Jan 1999 157.6mm
Jan 2002 140.2mm
Jan 2011 140mm ** incomplete*

-justin-

Piarco Int'l, Central Trinidad received another 32mm of rain in 6 hours ending at 2pm local lime, ( a total of 49mm for the 24 hours which is a normal amount for a rainy season day, not a January day). The monh's total has jumped then to 172.2mm...which is even wetter than December 2010 which saw 153.9mm at the airport. Unofficially, its now the 4th wettest January on record. The wettest January is unlikely to be challenged as the month ends in just 2 days.

An additiional 11mm from 2pm to 8pm local time at the airport in Trinidad brings the month's total now to near 183mm.

[tropicana]

Regional Highs and Rainfall (rain is 7pmET Fri to 7pmET Sat) for
Sat Jan 29 2011

Piarco Airport, Trinidad 29.1C 84F 60.0mm
Maraval, NW Trinidad 25.2C 77F 6.1mm
Crown Point, Tobago 29.5C 85F 24.7mm
Point Salines, Grenada 29.1C 84F 0.4mm
Grantley Adams, Barbados 29.9C 86F

Arnos Vale, St Vincent 29.4C 85F trace
Hewannora, St Lucia 29.0C 84F 4.1mm
Melville Hall, Dominica 29.4C 85F
LeLamentin, Martinique 29.6C 86F 1.2mm
Golden Rock, St Kitts 28.3C 83F
VC Bird, Antigua 28.1C 83F 0.2mm
San Juan, Puerto Rico 29.4C 85F

Owen Roberts, Grand Cayman 25.2C 77F
Kingston, Jamaica 30.2C 86F trace
Montego Bay, Jamaica 25.6C 78F
Havana, Cuba 22.1C 72F
Nassau, Bahamas 22.5C 73F
Hamilton, Bermuda 19.9C 68F 0.8mm

Hato Curacao 29.8C 86F
Queen Beatrix, Aruba 30.9C 88F

-justin-

[cycloneye]

A few scattered showers will move thru the PR/VI area on Sunday. Let's see if those showers cause the January rainfall total to go above normal as right now is below the average for the month.I will post the final January rainfall totals by next Tuesday.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
1024 PM AST SAT JAN 29 2011

.UPDATE...A GENERALLY FAIR WEATHER PATTERN WILL DOMINATE THE LOCAL
AREA FOR THE NEXT FEW DAYS...AS A MID TO UPPER LEVEL RIDGE CONTINUES
TO INFLUENCE THE LOCAL WEATHER CONDITIONS. ALTHOUGH...A DECENT BAND
OF MOISTURE IS EXPECTED TO REACH THE FA SUNDAY THROUGH SUNDAY NIGHT
AND MAY NOW LINGER THROUGH THE FIRST PART OF MONDAY...BRINGING A
NOTICEABLE INCREASE IN CLOUDINESS AND SHOWERS TO THE LOCAL ISLANDS.
DISCUSSION PREVIOUSLY ISSUED STILL HOLDS...THEREFORE NO CHANGES WERE
MADE TO THE FORECAST PACKAGE.

&&

.AVIATION...AN AREA OF BKN-OVC CLOUD COVER IS MOVING INTO THE
LEEWARD ISLANDS AND WILL CROSS THROUGH THE USVI AFT 30/11Z...AND PR
AFT 30/16Z WITH BRIEF MVFR CIGS AND SCT SHWRS. EXPECT MTN
OBSCURATIONS AFT 30/13Z. CLEARING SHOULD FOLLOW 12-14 HRS AFTER.
LLVL FLOW EAST NORTHEAST 10 TO 15 KT BELOW 5 KFT.

[Gustywind]

[Gustywind]

[cycloneye]

Good morning.

AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
424 AM AST SUN JAN 30 2011

.SYNOPSIS...MID TO UPPER LEVEL AS WELL AS THE SURFACE ATLANTIC
HIGH PRESSURE RIDGE CONTINUES TO INFLUENCE THE LOCAL WEATHER
CONDITIONS...AND MAINTAIN UPPER LEVEL SUBSIDENCE AND OVERALL DRY
AND AIR MASS ACROSS THE REGION. HOWEVER...LATEST SATELLITE IMAGES
AND THE DOPPLER WEATHER RADAR...INDICATED PASSING TRADE WIND
SHOWERS MOVING ACROSS THE NORTHEAST CARIBBEAN...ACCOMPANYING A
CONVERGENCE BAND OF LOW TO MID LEVEL TRADE WIND MOISTURE NOW
MOVING ACROSS THE NORTHERN LEEWARDS AND QUICKLY APPROACHING THE
VIRGIN ISLANDS. MEANWHILE...MOSTLY CLEAR TO PARTLY CLOUDY SKIES
WERE OBSERVED ACROSS MUCH OF PUERTO RICO AND ADJACENT ISLANDS
WITH LITTLE OR NO PRECIPITATION DETECTED OVER LAND. LOCAL LAND
AND SHIP OBSERVATIONS SUGGESTED...THAT A GENERAL LIGHT TO MODERATE
EASTERLY WIND FLOW PREVAILED ACROSS THE REGION...WITH WINDS MOSTLY
CALM TO LIGHT AN VARIABLE OVER LAND.

&&

.DISCUSSION...A MOSTLY FAIR WEATHER PATTERN WILL CONTINUE TO
DOMINATE THE LOCAL REGION FOR THE NEXT SEVERAL DAYS. HOWEVER...THE
AFOREMENTIONED BAND OF TRADE WIND MOISTURE WILL MOVE ACROSS THE AREA
TODAY...AND MAY LINGER ACROSS THE AREA THROUGH THE EVENING HOURS
OR EARLY MONDAY...BEFORE COMPLETELY MOVING OFF OR DISSIPATING.
EXPECT THIS FEATURE TO BRING...INCREASING CLOUD COVER AND BETTER
CHANCE OF AFTERNOON SHOWERS ACROSS PARTS OF THE ISLANDS AT LEAST
UNTIL LATER THIS EVENING. THE AFTERNOON CONVECTION WILL HOWEVER
BE OF SHORT DURATION WITH NO SIGNIFICANT OR WIDESPREAD RAINFALL
EXPECTED WITH THIS QUICK PASSING MOISTURE BAND. THEREAFTER...CONTINUED
DRY AND STABLE WEATHER PATTERN IS FORECAST...WITH THE TYPICAL PASSING
EARLY MORNING COASTAL SHOWERS...FOLLOWED BY ONE OR TWO DIURNALLY OR
LOCAL TERRAIN INDUCED AFTERNOON SHOWERS...MAINLY ACROSS PARTS OF INTERIOR
AND WEST SECTIONS OF PUERTO RICO. MOSTLY SUNNY AND FAIR WEATHER SKIES
WILL PREVAIL ACROSS MUCH OF THE VIRGIN ISLANDS FOR THE NEXT FEW DAYS.

&&

.AVIATION...ISOLD SHRA NOW MOVING OVER LOCAL WATERS BTW ERN
PUERTO RICO AND THE NRN LEEWARD ISLANDS. THIS AREA OF SCT-BKN
CLOUD COVER IS MOVING DUE WEST AND SHOULD REACH THE USVI BY
30/09Z...AND PR AFT 30/11Z. FEW-ISOLD SHRA WILL HOWEVER REACH THE
EAST COASTAL SECTIONS OF PR AND THE ADJACENT ISLANDS FM NOW TIL
30/15Z. THIS WILL LEAD TO BRIEF MVFR CIGS WITH ISOLD-SCT SHRA...
ESPECIALLY OVR ERN AND WEST INTERIOR OF PR. EXPECT MTN OBSCURATIONS
AFT 30/12Z. CLEARING SHOULD FOLLOW 12-14 HRS AFTER. LLVL FLOW IS
EAST NORTHEAST 10 TO 15 KT BELOW 5 KFT.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU 82 71 82 72 / 40 20 20 20
STT 84 72 84 74 / 40 10 10 20

[cycloneye]

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
307 PM AST SUN JAN 30 2011

.SYNOPSIS...AN ELONGATED MID TO UPPER LEVEL RIDGE IS NOW EXPECTED
TO REMAIN THE DOMINANT WEATHER FEATURE LOCALLY THROUGH AT LEAST
THE MIDDLE OF THE WEEK AND PROBABLY WELL BEYOND...WITH JUST A
SLIGHT FLATTENING OF THE RIDGE CONTINUING TONIGHT AND THEN AGAIN
TUESDAY THROUGH WEDNESDAY...DUE TO PASSING SHORT WAVES. THIS
PATTERN WILL CONTINUE TO RESULT IN GENERALLY FAIR AND MAINLY DRY
WEATHER ACROSS THE LOCAL AREA.

&&

.DISCUSSION...THE ONLY REAL FORECAST DILEMMA WE FACE...IS TRYING
TO FIND NEW WAYS TO DESCRIBE THIS ONGOING LOCAL WEATHER PATTERN
WITH NO SIGNIFICANT CHANGES. GENERALLY FAIR AND MAINLY DRY
WEATHER CONDITIONS WILL CONTINUE ACROSS THE LOCAL ISLANDS FOR AT
LEAST THE NEXT SEVERAL DAYS. AS MENTIONED BEFORE...STILL EXPECT
OCCASIONAL BANDS AND PATCHES OF MOISTURE TO MOVE ACROSS THE LOCAL
AREA...RESULTING IN BRIEF INTERVALS OF CLOUDS AND PASSING SHOWERS
OVER PARTS OF THE LOCAL ISLANDS...WITH MOSTLY CLEAR AND DRY
CONDITIONS BEFORE AND AFTER EACH MOISTURE AREA. NICE BAND OF
MOISTURE WILL CONTINUE MOVING ACROSS THE FA THE REST OF THIS
AFTERNOON AND TONIGHT AND WILL LINGER THROUGH THE FIRST PART OF
MONDAY...BRINGING VARYING AMOUNTS OF CLOUDINESS AND SOME SHOWERS
TO THE LOCAL ISLANDS.

&&

.AVIATION...MVFR CONDITIONS IN ISOLATED TO SCATTERED PASSING
SHOWERS ARE POSSIBLE ACROSS MOST OF THE TAF SITES AT LEAST
THROUGH 31/00Z. THIS SHOWER ACTIVITY COULD ALSO PRODUCE LOCAL
MOUNTAIN OBSCURATIONS...MAINLY OVER THE INTERIOR SECTIONS OF
PUERTO RICO. LLVL EASTERLY WIND FLOW OF 5 TO 15 KTS FROM THE SFC
TO AROUND 5K FEET.

&&

.MARINE...EXPECT WINDS OF 17 KNOTS OR LESS AND SEAS OF 6 FEET OR
LESS ACROSS THE REGIONAL WATERS THROUGH AT LEAST TUESDAY. SMALL
BOAT OPERATORS SHOULD EXERCISE CAUTION ACROSS PARTS OF THE LOCAL
COASTAL WATERS TONIGHT...BUT SMALL CRAFT ADVISORY CONDITIONS ARE
NO LONGER EXPECTED OVER THE EXTREME NORTHEAST SECTIONS OF THE
ATLANTIC OFF SHORE WATERS.

&&

.FIRE WEATHER...INCREASINGLY DRY CONDITIONS ARE EXPECTED ACROSS
THE LOCAL ISLANDS FOR THE NEXT SEVERAL DAYS...ESPECIALLY OVER THE
SOUTH COASTAL SECTIONS AND SOUTH SLOPES OF PUERTO RICO AND THIS
WILL CONTINUE TO RESULT IN A STEADILY INCREASING WILDFIRE FIRE
DANGER. ALL LOCAL RESIDENTS AND VISITORS ARE REMINDED TO USE
EXTRA CAUTION AND TO DISPOSE OF ALL FLAMMABLE MATERIALS IN THE
PROPER RECEPTACLES.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU 71 83 71 82 / 20 20 20 20
STT 73 84 73 85 / 10 10 20 20

[tropicana]

Regional Highs and Rainfall (rain is 7pmET Sat-7pmET Sun) for
Sun Jan 30 2011


Piarco Airport, Trinidad 30.7C 87F 4.0mm ( January rainfall total 187.3mm)
Maraval, NW Trinidad 29.6C 85F 0.3mm
Crown Point, Tobago 30.2C 86F 0.2mm
Point Salines, Grenada 29.5C 85F 0.7mm

Arnos Vale, St Vincent 29.0C 84F trace
Grantley Adams, Barbados 29.5C 85F 1.9mm
Vigie, St Lucia 28.8C 84F
LeLamentin, Martinique 29.0C 84F 0.2mm
Melville Hall, Dominica 29.09C 84F 2.3mm
Golden Rock, St Kitts 28.4C 83F trace
VC Bird, Antigua 28.0C 82F 0.5mm
San Juan, Puerto Rico 27.8C 82F 2.0mm

Owen Roberts, Grand Cayman 26.6C 80F
Kingston, Jamaica 29.9C 86F trace
Montego Bay, Jamaica 30.9C 87F
Havana, Cuba 25.0C 77F
Key West, Florida 22.2C 72F
Miami, Florida 23.3C 74F
Nassau, Bahamas 22.9C 73F
Hamilton, Bermuda 19.3C 67F

-justin-

[cycloneye]

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN JUAN PR
940 PM AST SUN JAN 30 2011

.UPDATE...SHOWERS OVER LAND HAVE DIMINISHED CONSIDERABLY...BUT
CONTINUE TO BE SCATTERED TO ISOLATED OVER WATER FROM LOIZA WEST
NORTHWEST IN A LINE...AND SOUTH OF THE SOUTHEAST COAST AND NORTH
OF THE SPANISH VIRGIN ISLANDS. A FEW SPRINKLES ARE OVER YABUCOA AS
WELL.

&&

.DISCUSSION...MANY PLACES ON THE SOUTH COAST AND THE COASTAL SLOPES ON
THE WEST HALF OF THE NORTH COAST REMAINED DRY DESPITE SOME CLOUD
COVER. SATELLITE IMAGERY SHOWS THIS BAND BREAKING UP TO THE SOUTH
BUT STILL PRODUCING THE SHOWERS TO THE NORTH OF CULEBRA AND
VIEQUES...THOUGH NOTHING HEAVY. THERE IS A CLEAR AREA BETWEEN THIS
BAND AND SAINT KITTS...WITH SAINT CROIX IN IT AND SAINT THOMAS ON
THE LEADING EDGE OF THE DRIER AIR. THE NEXT AREA OF CLOUDS SHOULD
BE MOVING INTO PUERTO RICO A FEW HOURS AFTER DAWN ON TUESDAY...AND
EARLY TUESDAY MORNING IN SAINT THOMAS AND SAINT CROIX. THIS LEAVES
MONDAY WITH FAIR WEATHER. THE CLOUD FIELD ADVANCING ON THE LEEWARD
ISLANDS AT THE MOMENT EXTENDS 20 PLUS DEGREES OF LONGITUDE TO THE
EAST BUT WILL BE SUBJECT TO DIURNAL FLUCTUATIONS IN DEPTH. THUS
CONTINUE TO EXPECT SIMILAR WEATHER FOR THE REST OF THE WEEK.
MARINE CONDITIONS AS DISCUSSED BELOW.

&&

.AVIATION...
PERIODS OF MVFR CONDITIONS IN ISOLATED TO SCATTERED PASSING
SHOWERS ARE POSSIBLE ACROSS MOST OF THE TAF SITES AT LEAST THROUGH
31/14Z. THIS SHOWER ACTIVITY COULD ALSO PRODUCE LOCAL MOUNTAIN
OBSCURATIONS MAINLY OVER THE INTERIOR SECTIONS OF PUERTO RICO.
LLVL EASTERLY WIND FLOW OF 5 TO 15 KTS FROM THE SFC TO AROUND 5K
FEET.

[cycloneye]

Good morning.More of the same kind of weather here.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
425 AM AST MON JAN 31 2011

.SYNOPSIS...A MID TO UPPER LEVEL RIDGE WILL CONTINUE AS THE DOMINANT
WEATHER FEATURE ACROSS THE FA THROUGH THE END OF THE WEEK. THIS
PATTERN WILL CONTINUE TO RESULT IN GENERALLY FAIR AND MAINLY DRY
WEATHER ACROSS THE LOCAL AREA.

&&

.DISCUSSION...AN AREA OF LOW LEVEL CLOUDINESS EMBEDDED IN THE TRADE
WIND FLOW MOVED ACROSS THE LOCAL AREA OVERNIGHT. THIS FEATURE
PRODUCED FEW PASSING SHOWERS MAINLY ACROSS THE U.S. VIRGIN
ISLANDS...VIEQUES...CULEBRA AND ACROSS THE EASTERN AND NORTHERN
COASTAL SECTIONS OF PUERTO RICO OVERNIGHT. HOWEVER...THE TOTAL
RAINFALL AMOUNTS ASSOCIATED WITH THIS ACTIVITY WERE GENERALLY
MINIMAL. NO SHOWER ACTIVITY WAS DETECTED ELSEWHERE ACROSS THE REGION
SO FAR THIS MORNING. LATEST SATELLITE IMAGES THIS MORNING...
INDICATED PATCHES OF MOISTURE EMBEDDED IN THE TRADES AND MOVING
WESTWARD ACROSS THE ATLANTIC WATERS. SOME OF THESE PATCHES OF
MOISTURE WILL MOVE FROM TIME TO TIME ACROSS THE REGION...INDUCING
BRIEF INTERVALS OF CLOUDS AND PASSING SHOWERS OVER PARTS OF THE
LOCAL ISLANDS. HOWEVER...NO SIGNIFICANT PRECIPITATION IS EXPECTED
ACROSS THE FA DURING THE FORESEEABLE FUTURE. PWAT VALUES WILL
CONTINUE NEAR OF BELOW ONE INCH FOR THE NEXT SEVERAL DAYS.

&&

.AVIATION...PDS OF MVFR CONDS IN LOW CIGS ACCOMPANYING ISOLD-SCT
PASSING SHRA MOVING FM EAST TO WEST ACROSS THE LOCAL FLYING AREA...
AS WELL AS VCTY TJSJ...TJNR...TISX...AND TIST AT LEAST TIL 31/11Z.
SOME OF THE PASSING SHOWERS MAY ALSO PRODUCE LOCAL MTN OBSCURATIONS
MAINLY OVER THE EAST INTERIOR SECTIONS OF PUERTO RICO. LLVL EASTERLY
WIND FLOW OF 5 TO 15 KTS FROM THE SFC TO AROUND 10K FEET WILL
CONTINUE THROUGH 31/18Z.

&&

.MARINE...EXPECT WINDS OF 17 KNOTS OR LESS AND SEAS OF 6 FEET OR
LESS ACROSS THE REGIONAL WATERS THROUGH AT LEAST TUESDAY. SMALL BOAT
OPERATORS SHOULD EXERCISE CAUTION ACROSS MOST OF THE LOCAL
COASTAL WATERS TODAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU 83 71 84 73 / 20 20 20 20
STT 84 73 84 74 / 10 20 20 20

[Macrocane]

Hi! Yesterday the northern half of Central America registered the coldest minimum temperatures since January 16, these are the observations (from yesterday):

Minimum Temperatures
Belize city, Belize 18°C (64°F)
Mounatin Pine Ridge, Belize 16.7°C (62.1°F)
Guatemala city, Guatemala 12°C (54°F)
Quetzaltenango, Guatemala 1.3°C (34.3°F)
Zacapa, Guatemala 17°C (63°F)
San Salvador, El Salvador 17.3°C (63.1°F)
Las Pilas, El Salvador 8.1°C (46.6°F)
San Miguel, El Salvador 19.5°C (67.1°F)
Tegucigalpa, Honduras 16°C (61°F)
La Esperanza, Honduras 9°C (48°F)
Choluteca, Honduras 24°C (75°F)
Esteli, Nicaragua 13.3°C (55.9°F)
Managua, Nicaragua 22°C (72°F)
San Jose, Costa Rica 16.0°C (61.0°F)
Irazu volcano, Costa Rica 3.5°C (38.3°F)
Panama city, Panama 20.7°C (69.3°F)
Boquete, Panama 14.7°C (58.5°F)

Maximum Temperatures
Belize city, Belize 27°C (81°F)
Mountain Pine Ridge, Belize 26.1°C (79.0°F)
Guatemala city, Guatemala 28°C (82°F)
Quetzaltenango, Guatemala 21.9°C (71.4°F)
Zacapa, Guatemala 33°C (91°F)
San Salvador, El Salvador 30.5°C (86.9°F)
Las Pilas, El Salvador 22.5°C (72.5°F)
San Miguel, El Salvador 36.8°C (98.2°F)
Tegucigalpa, Honduras 27°C (81°F)
La Esperanza, Honduras 23°C (73°F)
Choluteca, Honduras 34°C (93°F)
Managua, Nicaragua 33°C (91°F)
Esteli, Managua 25.5°C (77.9°F)
San Jose, Costa Rica 26.0°C (78.8°F)
Panama city, Panama 32.7°C (90.9°F)
Boquete, Panama 21.8°C (68.7°F)

[cycloneye]

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
314 PM AST MON JAN 31 2011

.SYNOPSIS...A MID TO UPPER LEVEL RIDGE WILL REMAIN THE DOMINANT
WEATHER FEATURE LOCALLY THROUGH AT LEAST THE END OF THE WEEK AND
PROBABLY BEYOND...MAINTAINING A GENERALLY FAIR AND MAINLY DRY
WEATHER PATTERN ACROSS THE LOCAL AREA.

&&

.DISCUSSION...GENERALLY FAIR AND MAINLY DRY WEATHER CONDITIONS
WILL CONTINUE ACROSS THE LOCAL ISLANDS FOR AT LEAST THE NEXT
SEVERAL DAYS. STILL EXPECT BANDS AND PATCHES OF SHALLOW MOISTURE
TO MOVE ACROSS THE LOCAL AREA FROM TIME TO TIME...RESULTING IN
BRIEF INTERVALS OF CLOUDS AND PASSING SHOWERS OVER PARTS OF THE
LOCAL ISLANDS...WITH MOSTLY CLEAR AND DRY CONDITIONS BEFORE AND
AFTER EACH MOISTURE AREA.

&&

.AVIATION...PREVAILING VFR CONDITIONS WILL CONTINUE ACROSS THE
LOCAL ISLANDS AND AT ALL TAF SITES THROUGH AT LEAST THE NEXT 24
HOURS. HOWEVER...BRIEF MVFR CONDITIONS AND LOCAL MOUNTAIN
OBSCURATIONS ARE POSSIBLE OVER THE NORTHWEST QUARTER OF PUERTO
RICO...INCLUDING NEAR TJMZ AND TJBQ THROUGH ABOUT 31/22Z IN
SCATTERED SHOWERS.

&&

.MARINE...EXPECT WINDS OF 18 KNOTS OR LESS AND SEAS OF 6 FEET OR
LESS ACROSS THE REGIONAL WATERS THROUGH AT LEAST WEDNESDAY. SMALL
BOAT OPERATORS SHOULD EXERCISE CAUTION ACROSS THE LOCAL ATLANTIC
OFF SHORE WATERS TONIGHT.

&&

.FIRE WEATHER...INCREASINGLY DRY CONDITIONS WILL CONTINUE ACROSS
THE LOCAL ISLANDS FOR THE NEXT SEVERAL DAYS...ESPECIALLY OVER THE
SOUTH COASTAL SECTIONS AND SOUTH SLOPES OF PUERTO RICO AND THIS
WILL CONTINUE TO RESULT IN A STEADILY INCREASING WILDFIRE FIRE
DANGER. ALL LOCAL RESIDENTS AND VISITORS ARE REMINDED TO USE EXTRA
CAUTION AND TO DISPOSE OF ALL FLAMMABLE MATERIALS IN THE PROPER
RECEPTACLES.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU 70 83 72 82 / 20 20 20 20
STT 73 85 75 85 / 20 20 20 20

[Macrocane]

Four earthquakes have been felt in El Salvador in less than 24 hours, 2 of them occured in Los Naranjos and they're part of a swarm that began on Thursday so they have been felt only in the areas very near the epicenter the other 2 occured in the subduction zone so they were felt in a big part of the country tahnkfully none of them have caused any damage. As you will see they are very deifferent kinds of earthquake, in Los Naranjos they are weaker but shallow in the subduction zone they're deeper and stronger:

Jan 30 2011
Local Time 21:50
Magnitude 4.5
Depth 50.5 km
Location 30 km south of Toluca beach (offshore)

Jan 31 2011
Local Time 01:41
Magnitude 3.0
Depth 6 km
Location Los Naranjos

Jan 31 2011
Local Time 04:23
Magnitude 4.1
Depth 32.8 km
Location 30 km south of Barra Salada Beach (offshore)

Jan 31 2011
Local Time 15:28
Magnitude 2.3
Depth 2.6 km
Location Los Naranjos

[cycloneye]

Good morning. Dry weather continues in Puerto Rico and the Virgin Islands.


AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
413 AM AST TUE FEB 1 2011

.SYNOPSIS...A MID TO UPPER LEVEL RIDGE WILL CONTINUE AS THE DOMINANT
WEATHER FEATURE ACROSS THE FA THROUGH THE UPCOMING WEEKEND. THIS
PATTERN WILL CONTINUE TO RESULT IN A GENERALLY FAIR AND MAINLY DRY
WEATHER ACROSS THE LOCAL AREA.

&&

.DISCUSSION...ONLY FEW ISOLATED SHOWERS WERE DETECTED OVERNIGHT AND
EARLY IN THE MORNING ACROSS THE OFFSHORE CARIBBEAN WATERS. NO SHOWER
ACTIVITY WAS DETECTED OVER LAND AREAS. ONLY MINOR PATCHES OF LOW
LEVEL CLOUDINESS EMBEDDED IN THE TRADE WIND FLOW WILL MOVE ACROSS
THE LOCAL AREA FROM TIME TO TIME DURING THE NEXT SEVERAL DAYS...
INDUCING ONLY A FEW PASSING SHOWERS MAINLY ACROSS THE U.S. VIRGIN
ISLANDS...VIEQUES...CULEBRA AND ACROSS THE EASTERN AND NORTHERN
COASTAL SECTIONS OF PUERTO RICO. HOWEVER...NO SIGNIFICANT OR
WIDESPREAD PRECIPITATION IS EXPECTED AS THE LOCAL ISLANDS REMAINS
UNDER THE INFLUENCE OF A STRONG MID TO UPPER LEVEL RIDGE.

&&

.AVIATION...PREVAILING VFR CONDS EXPECTED AT ALL TAF SITES NEXT 24
HOURS. EXPECT LCL SEA BREEZE VARIATIONS ALONG THE COASTAL SECTIONS
OF THE ISLANDS WITH A GENERAL EAST NORTHEAST WND FLO OF 10 TO 20 KTS
BLO 20K FT...THEN INCR AND BACKING WITH HEIGHT.

&&

.MARINE...EXPECT WINDS OF 18 KNOTS OR LESS AND SEAS OF 6 FEET OR
LESS ACROSS THE REGIONAL WATERS THROUGH AT LEAST WEDNESDAY. SMALL
BOAT OPERATORS SHOULD EXERCISE CAUTION ACROSS THE LOCAL ATLANTIC
OFF SHORE WATERS TODAY.

&&

.FIRE WEATHER...GENERALLY DRY CONDITIONS WILL CONTINUE ACROSS THE
LOCAL ISLANDS FOR THE NEXT SEVERAL DAYS...ESPECIALLY OVER THE
SOUTH COASTAL SECTIONS AND SOUTH SLOPES OF PUERTO RICO AND THIS
WILL CONTINUE TO RESULT IN A POSIBILITY OF WILDFIRE FIRE DANGER.
ALL LOCAL RESIDENTS AND VISITORS ARE REMINDED TO USE EXTRA CAUTION
AND TO DISPOSE OF ALL FLAMMABLE MATERIALS IN THE PROPER
RECEPTACLES. HOWEVER...RH VALUES ARE EXPECTED TO REMAIN ABOVE THE
CRITICAL LEVEL FOR THE NEXT FEW DAYS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU 83 72 82 72 / 20 20 20 20
STT 85 73 85 73 / 20 20 20 10

[cycloneye]

January closed with a -0.31 deficit of rainfall. Last year 11.07 inches fell in January, so 2011 begins well below the 2010 pace.

Code: Select all


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................

PRECIPITATION (IN)
  YESTERDAY        0.00          0.98 1982   0.09  -0.09     0.02
  MONTH TO DATE    2.71                      3.02  -0.31    11.07
  SINCE DEC 1     10.18                      7.59   2.59    12.90
  SINCE JAN 1      2.71                      3.02  -0.31    11.07



[cycloneye]

Lets see how much rain falls from the trough by thursday and friday, as we need it because of the dry conditions that are causing the forest fires.

AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
241 PM AST TUE FEB 1 2011

.SYNOPSIS...HIGH PRESSURE WILL DOMINATE THE LOCAL AREA AT LEAST
THROUGH THURSDAY. AN UPPER LEVEL TROUGH WILL DEVELOP EAST OF THE
ISLANDS. TRADE WINDS WILL INCREASE THROUGH THE END OF THE WEEK.

&&

.DISCUSSION...SOME ISOLATED SHOWERS DEVELOPED THIS AFTERNOON IN
SOME PLACES ACROSS THE ISLAND...BUT THE WIND MAINTAIN THESE SHOWER
MOVING QUICKLY. NO SIGNIFICANT RAINFALL ACCUMULATION WAS OBSERVED
WITH THIS ACTIVITY. OVERALL SYNOPTIC WEATHER PATTERN ACROSS THE
REGION STILL UNCHANGED...WITH A STRONG SURFACE HIGH PRESSURE
DOMINATING THE LOCAL AREA. MOISTURE CONTENT IS LOW ACROSS THE
REGION...THEREFORE...DON`T EXPECT TOO MUCH ACTIVITY OVER THE LOCAL
AREA DURING THE NEXT 48 HOURS. HOWEVER...COMPUTER MODELS INDICATED
AN UPPER LEVEL TROUGH WILL INTENSIFY NEAR 45 WEST EAST OF THE
LESSER ANTILLES...AND AN INDUCED TROUGH WILL FORM CLOSER TO THE
LOCAL ISLANDS. THIS...IN COMBINATION WITH AN INCREASE IN THE
EASTERLIES...WILL PROMOTE AN INCREASE IN CLOUDINESS AND SHOWERS
ACROSS THE REGION BEGINNING ON THURSDAY AND MOST PROBABLY LASTING
THROUGH SUNDAY. OVERALL...DON`T EXPECT SIGNIFICANT WEATHER ACTIVITY
RELATED TO THIS SCENARIO...BUT DEFINITELY...WE WILL SEE A LITTLE
MORE SHOWER ACTIVITY THAN THE PAST WEEK.

&&

.AVIATION...VFR CONDITIONS NEXT 36-42 HRS WITH NO SIG WX. WINDS
TOMORROW MORE FROM THE NE 15G25KT. MODELS SUGGEST LOW CLOUDS WITH
NMRS SHRA DEVELOPING THU AND FRI MORNINGS AS A TROF DIGS ACROSS
THE CNTRL ATLC AND A COOL ADVECTIVE PATTERN SETS UP ACROSS THE
LESSER ANTILLES WITH MVFR CIGS AND SHRA LIKELY AT JSJ/USVI AND NRN
LEEWARD ISLANDS TERMINALS.

&&

.FIRE WEATHER...NEAR CRITICAL FIRE WEATHER CONDITIONS LIKELY
TOMORROW AFTERNOON ACROSS THE SOUTHWEST FROM PONCE WEST TO MARICAO
AND MAYAGUEZ AS GUSTY EAST NORTHEAST DOWNSLOPE WINDS DEVELOP ACROSS
THAT AREA WHICH WOULD RESULT IN LOWER RH VALUES AND THUS FURTHER
DRYING OF FINE FUELS. FORECAST FOR THU AND FRI HINGES ON EXTENT OF
CLOUD COVER WHICH MODELS NOW SHOW BECOMING EXTENSIVE ACROSS THE
NORTHEAST WHICH MAY SPILL OVER THE CORDILLERA CENTRAL INTO THE SOUTH
COAST. NORTHEAST AREAS ARE LIKELY TO SEE SOME LIGHT RAINS THU
MORNING AND ESPECIALLY FRI MORNING.


&&

.PRELIMINARY POINT TEMPS/POPS...
SJU 72 82 72 82 / 20 20 30 30
STT 73 84 73 84 / 20 20 30 30

[Macrocane]

Hi I will make 2 posts today, this one contains yesterday temperatures and the other one will have today's. Some interesting facts of yesterday temps:
-Quetzaltenango (Guatemala) experienced the first frost since January 15 and the coldest temperature since January 8.
-San Salvador had its coldest minimum temperature since January 16.
-Esteli (Nicaragua) had the coldest minimum since January 3.
-Managua had the coldest maximum temperature since January 16.
-Panama city registered its warmest maximum of the month.


Minimum Temperatures
Belize city, Belize 23°C (73°F)
Mounatin Pine Ridge, Belize 19.1°C (66.4°F)
Guatemala city, Guatemala 14°C (57°F)
Quetzaltenango, Guatemala -1.4°C (29.5°F)
Zacapa, Guatemala 22°C (72°F)
San Salvador, El Salvador 16.2°C (61.2°F)
Las Pilas, El Salvador 8.4°C (47.1°F)
San Miguel, El Salvador 19.1°C (66.4°F)
Tegucigalpa, Honduras 17°C (62°F)
La Esperanza, Honduras 9°C (48°F)
Choluteca, Honduras 25°C (77°F)
Esteli, Nicaragua 13.3°C (55.9°F)
Managua, Nicaragua 21°C (70°F)
San Jose, Costa Rica 14.6°C (58.3°F)
Irazu volcano, Costa Rica 3.5°C (38.3°F)
Panama city, Panama 21.9°C (71.4°F)
Boquete, Panama 16.8°C (62.2°F)

Maximum Temperatures
Belize city, Belize 28°C (82°F)
Mountain Pine Ridge, Belize 26.9°C (80.4°F)
Guatemala city, Guatemala 26°C (79°F)
Quetzaltenango, Guatemala 22.0°C (72°F)
Zacapa, Guatemala 34°C (93°F)
San Salvador, El Salvador 30.9°C (87.6°F)
Las Pilas, El Salvador 22.5°C (72.5°F)
San Miguel, El Salvador 36.8°C (98.2°F)
Tegucigalpa, Honduras 28°C (82°F)
La Esperanza, Honduras 25°C (77°F)
Choluteca, Honduras 35°C (95°F)
Managua, Nicaragua 31°C (88°F)
Esteli, Managua 25.5°C (77.9°F)
San Jose, Costa Rica 27.2°C (81.0°F)
Irazu volcano, Costa Rica 17.7°C (63.9°F)
Panama city, Panama 33.7°C (92.7°F)
Boquete, Panama 23.4°C (74.1°F)