Caribbean - Central America Weather

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Gustywind
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Re: Caribbean - CA=Record low temps & rainfall in San Juan,USVI

#3941 Postby Gustywind » Mon Mar 08, 2010 6:42 am

cycloneye wrote:Good morning to all.I am happy that at least some rain has reached Guadeloupe.But not satisfied that this front wont make it more southward towards the Southern Windwards.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
558 AM AST MON MAR 8 2010

.SYNOPSIS...
MID TO UPPER LEVEL SHORT WAVE TROUGH SWEEPING ACROSS THE LOCAL AREA
EARLY THIS MORNING WILL CONTINUE EASTWARD INTO THE WEST CENTRAL ATLANTIC
TODAY...RESULTING IN AN INCREASING WESTERLY UPPER LEVEL WIND FLOW ACROSS
THE REGION. A COLD FRONT EXTENDING FROM THE NORTHERN LEEWARDS ACROSS
PUERTO RICO AND THE VIRGIN ISLANDS...THEN INTO THE SOUTHERN CARIBBEAN
THIS MORNING... WILL CONTINUE TO SINK FURTHER SOUTHEAST THROUGH TODAY...
BEFORE STALLING ACROSS THE SOUTHERN LEEWARDS WHILE DISSIPATING. HOWEVER...
EXPECT THE FRONTAL REMNANTS TO RETROGRESS TO THE NORTHWEST BY LATE TUESDAY
AND INTO THE MIDDLE OF THE WEEK... THEN LINGER ACROSS PUERTO RICO AND
THE VIRGIN ISLANDS ONCE AGAIN DURING THE REMAINDER OF THE WEEK.

&&

.DISCUSSION...
LATEST SATELLITE IMAGERY SHOWED SIGNIFICANT AMOUNTS LOW TO MID
LEVEL CLOUDINESS BEING PUSHED SOUTHWARDS BY THE FAIRLY STRONG
AND COOL NORTHERLY WINDS ACROSS THE LOCAL ATLANTIC WATERS. THE
COLD FRONT AND ASSOCIATED BAND OF MOISTURE CONTINUED TO QUICKLY
SINK FURTHER SOUTHWARDS ACROSS PUERTO RICO AND THE VIRGIN ISLANDS
DURING THE EARLY MORNING HOURS. THIS WILL RESULT IN DECREASING
RAINFALL ACROSS THE ISLANDS AND SURROUNDING WATERS. EXPECT THIS
TREND TO CONTINUE DURING THE REST OF THE DAY...WITH GOOD COLD AIR
ADVECTION AND DECREASING DEW POINTS EXPECTED TO DROP TO NEAR 59
DEGREES DURING THE MORNING HOURS. EXPECT CONTINUED CLOUDINESS
ACROSS THE REGION DUE TO COLD AIR STRATIFORM CLOUDS...BUT RAINFALL
AMOUNTS WILL BE LESSER RAINFALL DURING THE DAY. THEREFORE EXPECT
ISOLATED TO SCATTERED SHOWERS ACROSS PARTS OF THE ISLANDS DURING
THE AFTERNOON... BUT NO WIDESPREAD RAINFALL...A A SLIGHT DRYING
TREND WILL OCCUR WITH THE COOL AIR ADVECTING FROM THE NORTH. SOME
EARLY MORNING FOG AND LOW STRATUS CLOUDS WILL BE APPARENT...IN HIGHER
ELEVATIONS AND VALLEYS OF PUERTO RICO DURING THE EARLY MORNING. AS
FOR THE REST OF THE WEEK EXPECT FRAGMENTS OF MOISTURE FROM THE FRONTAL
BOUNDARY TO RETURN TO THE LOCAL AREA BY THE LATTER PART OF THE WEEK.
THIS ALONG WITH LOCAL AND DIURNAL EFFECT SHOULD BE ENOUGH TO HELP
PRODUCE EARLY MORNING AND DIURNAL CONVECTION. DO NOT HOWEVER EXPECT
WIDESPREAD AMOUNTS OF RAINFALL ACROSS THE REGION AS WE HAVE HAD IN
RECENT DAYS WITH THE PASSAGE OF THIS FRONTAL SYSTEM.

&&

.AVIATION...EXPECT MVFR CONDITIONS TO PREVAIL ACROSS TKPK TODAY...
WITH BRIEF IFR CONDITIONS POSSIBLE IN AREAS OF RAIN AND SOME FOG
ASSOCIATED WITH THE FRONTAL BOUNDARY. OTHERWISE...EXPECT PREVAILING
VFR CONDITIONS ACROSS THE REST OF THE LOCAL ISLANDS AND TAF SITES...
BUT WITH BRIEF MVFR CONDITIONS AND LOCAL MOUNTAIN OBSCURATIONS POSSIBLE
IN PASSING SHRA. NORTHEAST SURFACE WINDS OF 15 TO 25 KNOTS SHOULD
CONTINUE IN SOME LOCATIONS...AT LEAST THROUGH THIS MORNING... PARTICULARLY
OVER TJBQ AND TISX...AS WELL AS TIST WHERE GUSTS TO 30+ KNOTS ARE STILL
POSSIBLE. THE MONTSERRAT VOLCANO REMAINS MAINLY QUIET AT THIS TIME.


&&

.CLIMATE...A RECORD DAILY MAXIMUM RAINFALL OF 1.05 INCH(ES) WAS SET AT
LUIS MUNOZ MARIN AIRPORT IN SAN JUAN/P.R. YESTERDAY MARCH 7 2010. THIS
BROKE THE OLD RECORD OF 0.28 THAT WAS SET IN 1985.


Thanks Luis :) we're glad to see that for us (we have 2 good showers, this morning... :) ) but i'm pretty sad for the Southern Windwards too :cry: the situation is pretty pretty worrying!
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Re: Caribbean - Centralamerica Tropical Weather Thread

#3942 Postby Macrocane » Mon Mar 08, 2010 9:10 am

Good morning, I'm glad to see that at least the northern islands received the much needed rain and some relief to the high temps.

Here in El Salvador is the 6th day with cool northerly winds, actually in some parts of the country including San Salvador this morning was the coolest. According to the models this could be the last significant cold front of the season, so beggining this week the temperature will start to increase. Some low temperatures and gusts registered this morning:

San Salvador: 16.5 °C/61.7 °F
Las Pilas (northern El Salvador): 7.1 °C/44.8 °F
San Miguel (eastern El Salvador): 20.5 °C/68.9 °F
Santa Ana (western El Salvador): 16.2 °C/61.2 °F

Gusts of 42 km/h (26.5 mph) have been experienced in the western mountains of the country.
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Re: Caribbean - Centralamerica Tropical Weather Thread

#3943 Postby Macrocane » Mon Mar 08, 2010 9:22 am

Here are some low temperatures from this morning in other locations of the region:

Guatemala city 10°C/50 °F
Tegucigalpa 12 °C/53.6 °F
Quezaltenango (Guatemala) 0°C/32 °F
La Esperanza (Honduras) 5°C/41 °F
Belize city 17°C/63 °F
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#3944 Postby Gustywind » Mon Mar 08, 2010 11:51 am

Excellent news for Guadeloupe: the rain is falling nicely!
Meteo-France reported 60 MILLIMETERS of water in the northern tip of the island (Ste Rose :D !), 30 at La Désirade :). Right now we're enjoying this rainy episode we're having a little breath !
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Re:

#3945 Postby cycloneye » Mon Mar 08, 2010 12:23 pm

Gustywind wrote:Excellent news for Guadeloupe: the rain is falling nicely!
Meteo-France reported 60 MILLIMETERS of water in the northern tip of the island (Ste Rose :D !), 30 at La Désirade :). Right now we're enjoying this rainy episode we're having a little breath !


Very good news that its raining there.Below is the webcam from Guadeloupe mountains that shows the rain.

Image
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Re: Caribbean - Centralamerica Tropical Weather Thread

#3946 Postby cycloneye » Mon Mar 08, 2010 2:10 pm

Afternoon Discussion by NWS San Juan


AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
251 PM AST MON MAR 8 2010

.SYNOPSIS...COLD FRONT NOW WELL SOUTH OF LOCAL AREA AND
DISSIPATING. COOL AND STABLE AIR MASS LEFT OVER LOCAL AREA WILL
KEEP TEMPS AND HUMIDITY LOW FOR THE NEXT 3 DAYS WITH REMNANT
MOISTURE KEEPING SKIES FAIRLY CLOUDY. INDUCED TROUGHINESS AHEAD OF
THE FRONT WILL ALLOW MOISTURE TO RETURN FOR TUESDAY AND
WEDNESDAY...WITH WEAK FRAGMENTS OF SHOWER ACTIVITY TO LINGER
THROUGH THE END OF THE WEEK. HEAVY AND WIDESPREAD RAIN IS NOT
EXPECTED.


&&

.DISCUSSION...DEWPOINTS HAVE PLUMMETED INTO THE UPPER 50S AS COOL
STABLE POST FRONTAL AIR MASS NOW FIRMLY IN PLACE. LOW STRATUS DECK
IN STILL IN PLACE AND NOT LIKELY TO DISSIPATE SOON. MOISTURE WILL
WORK BACK INTO THE AREA TOMORROW MORNING AS EASTERLY TROUGHINESS
INDUCED ON THE TAIL END OF THE DISSIPATING FRONT WILL BRING
SHOWERS BACK TO THE AREA...WITH HIGHEST CHANCES OVER THE USVI AND
NRN PR. NOT LOOKING FOR A WIDESPREAD RAIN EVENT THIS TIME...AS MID
TO UPPER LAYERS WILL BE DRY AND NO SIGNIFICANT LOW LEVER FORCING
WILL BE IN PLACE. EXPECTING MAINLY LIGHT TO MODERATE RAIN. BY
THURSDAY...MOST OF THE TROUGH MOISTURE WILL BE GONE...WITH CLOUDS
BREAKING UP AND SHOWER ACTIVITY BECOMING MORE ISOLATED IN MOST
AREAS...WITH MOST LIKELY TIMES FOR RAIN OCCURRING EARLY MORNING.


&&

.AVIATION...VFR CONDITIONS WILL PREVAIL ACROSS MOST TAF SITES
THROUGH AT LEAST 09/12Z. MVFR CONDITIONS WILL PREVAIL ACROSS TKPK AT
LEAST THROUGH 09/06Z.

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Re: Re:

#3947 Postby Gustywind » Mon Mar 08, 2010 2:56 pm

cycloneye wrote:
Gustywind wrote:Excellent news for Guadeloupe: the rain is falling nicely!
Meteo-France reported 60 MILLIMETERS of water in the northern tip of the island (Ste Rose :D !), 30 at La Désirade :). Right now we're enjoying this rainy episode we're having a little breath !


Very good news that its raining there.Below is the webcam from Guadeloupe mountains that shows the rain.

Image

:) :) :D
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Re: Caribbean - Centralamerica Tropical Weather Thread

#3948 Postby HUC » Mon Mar 08, 2010 5:47 pm

Gusty,that's not the case in much of our territory...In many places,no rain at all,or a "pipi de chat" as we said ( 1.5 mm in my location,00 more south ). So some rare places received good showers,but the situation remain the same :severe drought for the island.
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Re: Caribbean - Centralamerica Tropical Weather Thread

#3949 Postby Gustywind » Mon Mar 08, 2010 6:25 pm

HUC wrote:Gusty,that's not the case in much of our territory...In many places,no rain at all,or a "pipi de chat" as we said ( 1.5 mm in my location,00 more south ). So some rare places received good showers,but the situation remain the same :severe drought for the island.

Oh no HUC :eek: it's awfull, you're funny "pipi de chat" :cheesy: 1,5 in Basse-Terre it's a nasty joke :double: ? Yeah unhopefully it's always a severe drought for sure! :roll:
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#3950 Postby Gustywind » Mon Mar 08, 2010 6:27 pm

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Re:

#3951 Postby abajan » Mon Mar 08, 2010 9:49 pm

Gustywind wrote:Excellent news for Guadeloupe: the rain is falling nicely!
Meteo-France reported 60 MILLIMETERS of water in the northern tip of the island (Ste Rose :D !), 30 at La Désirade :). Right now we're enjoying this rainy episode we're having a little breath !
I think our TV meteorologist stated on the evening news that a part of Northern Barbados got about half of an inch (12.7 mm) of rain today. So, it looks like things are finally beginning to change for the better in these islands.
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Re: Caribbean - Centralamerica Tropical Weather Thread

#3952 Postby cycloneye » Tue Mar 09, 2010 6:17 am

Good morning to all.Still some rain for today.



AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
516 AM AST TUE MAR 9 2010

.SYNOPSIS...
A BROAD MID TO UPPER TROUGH REMAINS OVER THE WESTERN ATLANTIC WITH
BASE OF TROUGH AND SUBTROPICAL JET STREAMING ACROSS THE NORTHEAST
CARIBBEAN THEN INTO THE CENTRAL ATLANTIC. WEAK RIDGING FROM ACROSS
THE SUBTROPICAL ATLANTIC AND FRONTAL TROUGH ACROSS NORTHEAST CARIBBEAN
IS CREATING LOW LEVEL CONVERGENCE ZONE AND HELPING TO KEEP STALLED
FRONTAL BOUNDARY ACROSS THE NORTHERN LEEWARDS AND OVER THE LOCAL ISLANDS.
EXPECT THE FRONTAL BOUNDARY TO LINGER ACROSS THE AREA AT LEAST THOUGH
THURSDAY WHILE SLOWLY LIFTING NORTHWARDS BACK ACROSS THE ISLANDS OVER
NEXT 24-36 HOURS...THEN DISSIPATING BY FRIDAY...AS HIGH PRESSURE BUILDS
ACROSS WEST ATLANTIC AND A SOMEWHAT DRIER AIR MASS AND NORTHEAST WIND
FLOW BECOME PREVALENT ACROSS THE REGION.

&&

.DISCUSSION...LOW LEVEL CONVERGENCE ACROSS THE REGION AND LOCAL
EFFECTS WILL AID IN SOME SHOWER DEVELOPMENT ACROSS PARTS OF THE
ISLANDS TODAY...BUT STILL NO WIDESPREAD RAINFALL EXPECTED AT THIS
TIME. ALTHOUGH THE FRONTAL BAND OF CLOUDINESS WILL CONTINUE TO SAG
ACROSS THE REGION FOR THE NEXT FEW DAYS...EXPECT A GRADUAL DECREASE
AND BREAK IN CLOUD COVER STARTING TODAY AND CONTINUING THROUGH
THE END OF THE WEEK. THIS BREAK IN CLOUD COVER WILL HELP PROVIDE
SUFFICIENT DAYTIME HEATING WHICH WILL ENHANCE AFTERNOON AND LATE
EVENING SHOWER DEVELOPMENT. PRESENT AND EXPECTED LOW TO MID LEVEL
WIND FLOW WILL HOWEVER FOCUS MOST OF SHOWER ACTIVITY ACROSS THE
NORTH CENTRAL AND EAST SECTION OF PUERTO RICO...AS WELL AS OVER
THE VIRGIN ISLANDS WHERE ISOLATED TO SCATTERED SHOWERS WILL REMAIN
POSSIBLE OVER THE NEXT FEW DAYS. IN ADDITION...THE PROXIMITY OF
UPPER LEVEL SUBTROPICAL JET JUST NORTH OF AREA WILL ALSO ENHANCE
CONVECTION AT LEAST THROUGH THURSDAY...WITH GRADUAL IMPROVEMENT
IN THE WEATHER CONDITIONS BY FRIDAY AN INTO WEEKEND AS THE
FRONTAL MOISTURE DISSIPATES.

&&

.AVIATION...BANDS OF MOISTURE ASSOCIATED WITH THE REMNANTS OF THE
FRONTAL BOUNDARY THAT PASSED THROUGH THE REGION ON SUNDAY WILL CONTINUE
TO RETROGRESS TO THE NORTH...MAINTAINING LOW TO MID LEVEL CLOUDINESS
WITH ISOLD TO SCT SHOWERS OVER THE LOCAL FLYING AREA. THIS WILL
RESULT IN PERIODS OF MVFR CONDS ACROSS TJSJ...TJPS...TJMZ AND TJBQ
TODAY. EXPECT SOME MOUNTAIN OBSCURATIONS DUE TO MOSTLY -SHRA AND
LOW CLDS THROUGHOUT THE PERIOD WITH NORTHEAST WINDS GRADUALLY BECOMING
MORE EASTERLY. RECENT UPPER AIR DATA AND WIND PROFILE SUGGESTS THAT
THE LIGHT TO MODERATE NORTHEAST WINDS BECOME WEST SOUTHWEST AND INCR
WITH HEIGHT ABV 050K FT...WITH MAX WND OF 80-90KTS BTW 300-350K FT.


&&

.MARINE...LONG PERIOD NORTH SWELLS WILL CONTINUE DECREASE BUT
WILL AFFECT THE ATLANTIC WATERS AND THE CARIBBEAN PASSAGES THROUGH
TODAY. THIS COMBINED WITH THE MODERATE TO LOCALLY FRESH TRADE
WINDS WILL PRODUCE HAZARDOUS MARINE CONDITIONS...LOCALLY ROUGH
SURF...WITH RISK OF DANGEROUS RIP CURRENTS ESPECIALLY ALONG THE
NORTH COASTAL AREAS. A SMALL CRAFT ADVISORY REMAINS IN EFFECT FOR
THE LOCAL ATLANTIC AND CARIBBEAN PASSAGES. PLEASE REFER TO COASTAL
WATERS FORECAST AND MARINE WEATHER MESSAGE FOR ADDITIONAL INFORMATION.
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Re: Caribbean - Centralamerica Tropical Weather Thread

#3953 Postby tropicana » Tue Mar 09, 2010 8:07 am

17 millimeters of rain has fallen overnight ( thru 8am Tue) at VC Bird International Airport, Antigua! That has to spell some relief for certain to that island

PS i just started a group on facebook for Eastern Caribbean Weather too, please feel free to contribute

http://www.facebook.com/topic.php?topic ... 0528645717

-justin-
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Re: Caribbean - Centralamerica Tropical Weather Thread

#3954 Postby cycloneye » Tue Mar 09, 2010 2:40 pm

Afternoon Discussion by NWS San Juan

What is left of the front looks like is winding down.


AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
259 PM AST TUE MAR 9 2010

.SYNOPSIS...A BROAD MID TO UPPER TROUGH REMAINS OVER THE WESTERN ATLANTIC WITH
WEAK RIDGING ACROSS THE SUBTROPICAL ATLANTIC. DISSIPATING FRONTAL
TROUGH ACROSS NORTHEAST CARIBBEAN EXPECTED TO LINGER ACROSS THE AREA AT LEAST
THOUGH THURSDAY WHILE SLOWLY LIFTING NORTHWARDS BACK ACROSS THE
USVI OVER NEXT 24-36 HOURS...AND DISSIPATING BY THURSDAY
NIGHT. LIGHT SCATTERED SHOWERS OVER USVI THROUGH
THURSDAY...WITH SLIGHTLY LESSER CHANCES OVER EASTERN PR...WITH
MOSTLY CLOUDY SKIES THROUGH THAT TIME EVERYWHERE. FRIDAY THROUGH
THE WEEKEND...HIGH PRESSURE BUILDS ACROSS CARIBBEAN BRINGING A
MUCH DRIER AIR MASS AND NORTHEAST WIND FLOW TO LOCAL AREA.


&&

.DISCUSSION...REMNANT TROUGHINESS FROM OLD BOUNDARY OVER THE USVI/LEEWARDS THIS
AFTERNOON...HAVING A HARD TIME PRODUCING ENOUGH MOISTURE ADVECTION/OVERRUNNING
TO WORK ANY MOISTURE ABOVE BL. NAM12 AND GFS BOTH TOO AGGRESSIVE WITH
QPF...AS EVIDENT FROM RADAR ALL DAY. TRENDED DOWN BOTH TONIGHT
THROUGH TOMORROW NIGHT A BIT TO REFLECT MODEL BIAS...BUT KEPT
GRIDS PAST FRIDAY MAINLY UNTOUCHED. ALL REMNANT LOW LEVEL MOISTURE
WILL BE GONE BY THURSDAY EVENING...FINALLY ALLOWING PESKY STRATOCU
DECK TO BREAK UP. AND MID LEVEL RIDGE TO BUILD OVER
SOUTHERN CARIBBEAN GREATLY IMPROVING CONDITIONS THROUGH THE END OF
THE CYCLE.

&&

.AVIATION...EXPECT PREVAILING VFR CONDITIONS NEXT 12 HRS ACROSS
ALL LOCAL TAF SITES. BRIEF MVFR CONDITIONS AND LOCAL MOUNTAIN
OBSCURATIONS ARE EXPECTED AFTER 092300Z FOR TKPK AND TNCM (LEEWARD
ISLANDS) AND AFTER 101300Z (13Z WED) IN PASSING -SHRA FOR UVSI AND
SAN JUAN (TJSJ...TIST...TISX).

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Re: Caribbean - Centralamerica Tropical Weather Thread

#3955 Postby cycloneye » Tue Mar 09, 2010 9:03 pm

Updated discussion by NWS San Juan

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN JUAN PR
941 PM AST TUE MAR 9 2010

.UPDATE...WINDS AND SEAS ARE LOWER THAN FORECAST AND BUOY 41043
SHOWED 5 FEET AND 12 KNOTS IN DESCENDING VALUES...SO HAVE REMOVED
SMALL CRAFT ADVISORIES FROM COASTAL WATERS FORECAST. LITTLE CHANGE
TO GRIDS IN THE NEAR TERM. SHOWERS CONTINUE TO BE VERY LIGHT AND
SPOTTY OVER PUERTO RICO ALTHOUGH MODERATE RAIN WAS REPORTED AT TISX
IN THE 10/0053Z OBSERVATION.

&&

.DISCUSSION...LATEST MODELS HAVE BOUNDARY OSCILLATING BACK AND
FORTH ACROSS THE CARIBBEAN AND PUERTO RICO. BACK OVER US ON
WEDNESDAY...WELL SOUTHEAST ON FRIDAY...THEN SLOWLY RETURNING UNTIL
IT PASSES OVER US AGAIN ON SUNDAY NIGHT AND MONDAY. IT DISSIPATES
THEN...JUST AS A WAVE MOVES WEST NORTH WEST INTO THE CARIBBEAN ON
MONDAY NIGHT AND PASSES SOUTH OF THE LOCAL AREA ON TUESDAY. NONE
OF THESE PASSAGES IMPLY MUCH RAIN...BUT SOME CLOUDINESS WILL
CONTINUE AND TEMPERATURES WILL NOT TRULY WARM UP UNTIL THE
WEEKEND. MODELS SUGGEST THAT THERE MAY BE YET ANOTHER FRONT
PASSING PUERTO RICO THE WEEKEND AFTER NEXT WITH A LITTLE MORE
MOISTURE...BUT THIS IS TOO FAR OUT FOR ANY CONFIDENCE.


&&

.AVIATION...BANDS OF MOISTURE ASSOCIATED WITH THE REMNANTS OF THE
FRONTAL BOUNDARY THAT PASSED THROUGH THE REGION ON SUNDAY WILL MOVE
BACK TO THE NORTH...PRODUCING PERIODS OF CLOUDINESS WITH SHOWERS
OVER THE LOCAL AREA. THIS WILL RESULT IN PERIODS OF MVFR CONDITIONS
ACROSS TJSJ...TJPS...TJMZ AND TJBQ TODAY. EXPECT SOME MOUNTAIN
OBSCURATIONS THROUGHOUT THE PERIOD WITH LIGHT TO MODERATE NORTHEAST
WINDS BECOME WEST SOUTHWEST AND STRONGER JUST ABOVE 5 THOUSAND
FEET.

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#3956 Postby Gustywind » Wed Mar 10, 2010 6:12 am

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#3957 Postby Gustywind » Wed Mar 10, 2010 6:12 am

000
FXCA62 TJSJ 100856
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
456 AM AST WED MAR 10 2010

.SYNOPSIS...A BROAD MID TO UPPER TROUGH REMAINS OVER THE WESTERN
ATLANTIC WITH WEAK RIDGING ACROSS THE SUBTROPICAL ATLANTIC.
DISSIPATING REMNANTS OF A FRONTAL BOUNDARY ACROSS THE NORTHEAST
CARIBBEAN EXPECTED TO LINGER ACROSS THE FA FOR THE NEXT FEW DAYS.
THESE REMNANTS ARE EXPECTED TO MOVE BACK AND FORTH ACROSS THE
LOCAL ISLANDS DURING THE NEXT FEW DAYS INDUCING PERIODS OF
CLOUDINESS WITH ISOLATED TO SCATTERED SHOWERS ACROSS THE REGION.

&&

.DISCUSSION...THE REMNANTS OF THE WEAK FRONTAL BOUNDARY WILL MOVE
BACK ACROSS THE LOCAL ISLANDS TODAY. THIS WEAK LOW LEVEL CONVERGENCE
ZONE IN COMBINATION WITH LOCAL EFFECTS WILL AID IN THE DEVELOPMENT
OF LIGHT TO MODERATE SHOWERS ACROSS PARTS OF THE LOCAL ISLANDS
TODAY...BUT NO WIDESPREAD RAINFALL EXPECTED AT THIS TIME.
ALTHOUGH THE WEAK REMNANTS BAND OF CLOUDINESS WILL CONTINUE TO
SAG ACROSS THE REGION FOR THE NEXT FEW DAYS...EXPECT A GRADUAL
DECREASE AND BREAK IN CLOUD COVER STARTING TODAY AND CONTINUING
THROUGH THE END OF THE WEEK. THIS BREAK IN CLOUD COVER WILL HELP
PROVIDE SUFFICIENT DAYTIME HEATING WHICH WILL ENHANCE AFTERNOON
AND LATE EVENING SHOWER DEVELOPMENT. PRESENT AND EXPECTED LOW TO
MID LEVEL WIND FLOW WILL HOWEVER FOCUS MOST OF SHOWER ACTIVITY
ACROSS THE NORTH CENTRAL AND EAST SECTION OF PUERTO RICO...AS WELL
AS OVER THE U.S. VIRGIN ISLANDS WHERE ISOLATED TO SCATTERED
SHOWERS WILL REMAIN POSSIBLE OVER THE NEXT FEW DAYS. IN
ADDITION...THE PROXIMITY OF UPPER LEVEL SUBTROPICAL JET JUST NORTH
NORTHEAST OF THE AREA WILL ALSO ENHANCE CONVECTION AT LEAST
THROUGH THURSDAY...WITH GRADUAL IMPROVEMENT IN THE WEATHER
CONDITIONS BY FRIDAY AN INTO WEEKEND AS THE FRONTAL MOISTURE
DISSIPATES.

&&

.AVIATION...SOLID BAND OF LOW TO MID LEVEL CLOUDS ASSOCIATED WITH
REMNANTS OF FRONTAL BOUNDARY WILL MEANDER ACROSS THE NE CARIBBEAN
AND LOCAL FLYING AREA FOR THE NEXT 24-36 HOURS. BKN-OVC CIGS BTW
050-080K FT...WITH SCT CLD DECK BTW 015-030K FT. INTMT -RA/PASSING
-SHRA TO PERSIST ACROSS AREA AT LEAST UNTIL 10/12Z. THIS WILL RESULT
IN TEMPO MVFR CONDS AT MOST LOCAL TAF SITES TIL 10/12Z...WITH
IMPROVEMENT AND PREVAILING VFR CONDS EXPECTED THEREAFTER. MTN TOP
OBSCURATIONS ALSO POSSIBLE TIL 10/11Z ALONG PARTS OF CORDILLERA
CENTRAL OF PR DUE TO PASSING SHRA WITH LOW/RAGGED CLDS/PATCHY FOG.
LATEST VERTICAL WND PROFILE AND AVN MET DATA SUGGESTED LIGHT EAST
NORTHEAST WINDS BLW 050K FT BCMG WEST SOUTHWEST AND INCRG WITH
HEIGHT ABV 050K FT...WITH MAX WND OF 70-80 KTS NR 350K FT.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU 82 74 84 73 / 40 40 30 30
STT 82 75 84 75 / 50 50 30 30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
&&

$$

09/72
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Gustywind
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#3958 Postby Gustywind » Wed Mar 10, 2010 6:17 am

000
AWCA82 TJSJ 100918
RWSVI

WEATHER SUMMARY FOR THE U.S. VIRGIN ISLANDS
NATIONAL WEATHER SERVICE SAN JUAN PR
518 AM AST WED MAR 10 2010

MOSTLY CLOUDY SKIES PREVAILED ACROSS THE ISLANDS DURING THE
OVERNIGHT AND EARLY MORNING HOURS. THE NWS DOPPLER RADAR DETECTED
SOME AREAS OF LIGHT RAIN AND A FEW MODERATE SHOWERS MOVING
QUICKLY ACROSS THE ISLANDS AND SURROUNDING LOCAL WATERS EARLIER
THIS MORNING. HOWEVER...RAINFALL ACCUMULATIONS WERE LESS THAN A
TENTH OF AN INCH. THE LOCAL WINDS OVER LAND WERE FROM THE NORTHEAST
AROUND 10 TO 15 MPH WITH OCCASIONALLY GUSTS UP TO AS MUCH AS 25
MPH...WHICH WAS REPORTED AT THE SAINT THOMAS AIRPORT ACCOMPANYING
A PASSING SHOWER.

SOLID BAND OF LOW TO MID LEVEL CLOUDS ASSOCIATED WITH REMNANTS OF
FRONTAL BOUNDARY WILL MEANDER ACROSS LOCAL ISLANDS AND SURROUNDING
WATERS AT LEAST THROUGH THURSDAY. HOWEVER...A GRADUAL DECREASE IN
CLOUDINESS IS EXPECTED STARTING TODAY AND WILL CONTINUE THROUGH
THE REST OF THE WEEK. HOWEVER...THE BREAKS IN CLOUD COVER WILL
ALLOW FOR SUFFICIENT DAYTIME HEATING...AND THIS COMBINED WITH
LOCAL TERRAIN EFFECTS...WILL LEAD TO SHOWER DEVELOPMENT ACROSS
PARTS OF THE ISLANDS DURING THE AFTERNOON AND EVENING HOURS.
WIDESPREAD RAINFALL IS HOWEVER NOT EXPECTED AT THIS TIME. A GENERAL
EAST NORTHEAST LOW LEVEL WIND FLOW WILL PREVAIL ACROSS THE ISLANDS
TODAY.

ACROSS THE REGIONAL WATERS...A NORTHERN SWELL WILL CONTINUE TO SUBSIDE
ACROSS THE LOCAL WATERS...THIS WILL LEAD TO DECREASING SEAS. HOWEVER...
MARINERS SHOULD EXERCISE CAUTION ACROSS THE LOCAL OFFSHORE ATLANTIC
WATERS AND CARIBBEAN PASSAGES TODAY.

$$
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#3959 Postby Gustywind » Wed Mar 10, 2010 6:30 am

- Updates from the Islands -
- - Antigua - -
- RAIN!!!!
By jan farara <janfarara at hotmail.com>
Date: Tue, 9 Mar 2010 12:45:44 +0000
:rarrow: http://www.stormcarib.com/reports/current/antigua.shtml

We had solid rain for 3 hours last night!! What a welcome sound. I was getting ready to order a water truck tomorrow, reprieve!!! Still cloudy this morning but no sign of rain yet. English Harbour has had virtually no government water for weeks so lets hope they get more and more rain. Our garden has been full of cracks its been so dry. Our little terrier Max has almost recovered from being run over so he'll be tracking mud everywhere again. Our road goes only to one more house and they managed to hit him and crack his pelvis 6 weeks ago, go figure. He'll be his normal happy muddy self soon. Getting very bothered about the upcoming hurricane season with such weird weather all around the world...snow in Provence in March!! Jan

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Re: Caribbean - Centralamerica Tropical Weather Thread

#3960 Postby cycloneye » Wed Mar 10, 2010 7:29 am

Good morning to all.Another cloudy day with some rain as what is left of the old front moves back north.

Folks,hurricane season is not far away as time goes by in a hurry so lets start to prepare early in the islands for this upcomming season.Hopefully,the tropical waves bring the needed rain for the islands that are in the drought and nothing much stronger comes to visit the Caribbean.
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