Caribbean - Central America Weather

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cycloneye
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Re: Caribbean - Central America Weather Thread

#7761 Postby cycloneye » Tue Dec 14, 2010 8:22 pm

It has been a couple of weeks without having these flood advisories being issued until now.

Flood Advisory

--------------------------------------------------------------------------------

FLOOD ADVISORY
NATIONAL WEATHER SERVICE SAN JUAN PR
853 PM AST TUE DEC 14 2010

PRC013-017-054-091-143-145-150345-
/O.NEW.TJSJ.FA.Y.0578.101215T0053Z-101215T0345Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FLORIDA PR-VEGA ALTA PR-BARCELONETA PR-MANATI PR-VEGA BAJA PR-
ARECIBO PR-
853 PM AST TUE DEC 14 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED AN

* URBAN AND SMALL STREAM FLOOD ADVISORY FOR MINOR FLOODING OF POOR
DRAINAGE AREAS IN
FOR THE FOLLOWING MUNICIPALITIES...

IN PUERTO RICO
FLORIDA...VEGA ALTA...BARCELONETA...MANATI...VEGA BAJA AND
ARECIBO

* UNTIL 1145 PM AST

* AT 852 PM AST...DOPPLER RADAR ESTIMATED VERY HEAVY RAIN IN THE
ADVISORY AREA. MANY OF THESE AREAS OF RAIN ARE NOT MOVING BUT ARE
DEVELOPING IN PLACE. 1 TO 3 INCHES OF RAIN HAVE FALLEN IS SOME AREAS
OF ARECIBO AND BARCELONETA ALREADY.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE
ADVISORY AREA.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 1848 6674 1855 6635 1838 6630 1838 6651
1833 6672

$$

SNELL
--------------------------------------------------------------------------------

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Re: Caribbean - Central America Weather Thread

#7762 Postby cycloneye » Tue Dec 14, 2010 9:32 pm

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
1019 PM AST TUE DEC 14 2010

.UPDATE...LIGHT NORTHERLY WINDS CONVERGING WITH THE LAND BREEZE
ALONG THE NORTHERN COAST OF PUERTO RICO BROUGHT AREAS OF HEAVY
RAINFALL THIS EVENING. EXPECT CONTINUED SHOWER DEVELOPMENT ALONG
THE NORTHERN COAST OF PUERTO RICO AND THE WATERS JUST TO THE NORTH
OF PUERTO RICO THROUGH THE EARLY MORNING HOURS...AND WENT AHEAD AN
UPPED POPS ACROSS THIS AREA EARLY IN THE EVENING AS A RESULT.
LATEST GFS INDICATION BEST LOW LEVEL MOISTURE AND DYNAMICS
ASSOCIATED WITH THE FRONTAL BOUNDARY TO OUR NORTHWEST WILL BE
ACROSS PUERTO RICO TOMORROW AFTERNOON THROUGH EARLY THURSDAY
MORNING...SO INHERITED LIKELY CHANCES FOR RAIN OVER THIS TIME
PERIOD CONTINUE TO LOOK GOOD. OTHER THAN THE AFOREMENTIONED CHANGES
TO THE SHORT TERM FORECAST...NO ADDITIONAL MODIFICATIONS NECESSARY
THIS EVENING.

&&

.AVIATION...COLD FRONT/SHEAR LINE WILL ENTER FORECAST AREA BEFORE
15/12Z AND SPREAD SHWRS AND RAIN OVER PUERTO RICO...MAINLY ON THE
NORTH COAST WHERE TAF SITES TJSJ...TJBQ AND POSSIBLY TJMZ WILL SEE
NUMEROUS VCSHS AND SHRAS. AS A RESULT...MVFR CONDS WILL BE
INTERMITTENT AT THESE SITES WITH VFR CONDS EXPECTED ELSEWHERE. MTN
OBSCURATIONS WILL CONTINUE IN PR AND OCNLY THE USVI THROUGH
16/00Z. LLVL FLOW WILL BE NORTHERLY 5-10 KT OR LESS WITH GUSTY
WINDS 20 KT NEAR SOME SHWRS.

&&

.MARINE...RAPIDLY INCREASING SEAS WILL LEAD TO ROUGH AND HAZARDOUS
MARINE CONDITONS ACROSS THE LOCAL ATLANTIC WATERS AND MONA PASSAGE
OVERNIGHT. THESE SWELLS WILL MAKE IT INTO THE ANEGADA PASSAGE AND
CARIBBEAN WATERS EARLY WEDNESDAY MORNING...RESULTING IN LARGE
AREAS OF ROUGH...CONFUSED...AND HAZARDOUS SEAS. IN ADDITION...DUE
TO THESE LARGE SWELLS...A HIGH SURF ADVISORY IS IN EFFECT FOR THE
NORTHERN EXPOSED COASTLINES OF PUERTO RICO...CULEBRA...AND THE
NORTHERN USVI BEGINNING AT MIDNIGHT AST TONIGHT.

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Re: Caribbean - Central America Weather Thread

#7763 Postby cycloneye » Tue Dec 14, 2010 10:19 pm

FLOOD ADVISORY
NATIONAL WEATHER SERVICE SAN JUAN PR
1038 PM AST TUE DEC 14 2010

PRC033-051-127-137-143-150530-
/O.NEW.TJSJ.FA.Y.0579.101215T0238Z-101215T0530Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VEGA ALTA PR-DORADO PR-CATANO PR-SAN JUAN PR-TOA BAJA PR-
1038 PM AST TUE DEC 14 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED AN

* URBAN AND SMALL STREAM FLOOD ADVISORY FOR MINOR FLOODING OF POOR
DRAINAGE AREAS IN
FOR THE FOLLOWING MUNICIPALITIES...

IN PUERTO RICO
VEGA ALTA...DORADO...CATANO...SAN JUAN AND TOA BAJA

* UNTIL 130 AM AST

* AT 1035 PM AST...DOPPLER RADAR ESTIMATED VERY HEAVY RAIN IN THE
ADVISORY AREA. IN SEVERAL AREAS OVER 2 INCHES HAS ALREADY FALLEN
ACCORDING TO UNOFFICIAL GAGES...WITH OVER 3.5 INCHES ACCORDING TO
NATIONAL WEATHER SERVICE DOPPLER RADAR.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
ADVISORY AREA.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 1848 6633 1848 6610 1844 6609 1839 6630

$$

SNELL
--------------------------------------------------------------------------------
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#7764 Postby Gustywind » Wed Dec 15, 2010 4:31 am

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#7765 Postby Gustywind » Wed Dec 15, 2010 4:39 am

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Re: Caribbean - Central America Weather Thread

#7766 Postby cycloneye » Wed Dec 15, 2010 5:48 am

Good morning.The front has arrived in Puerto Rico.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
539 AM AST WED DEC 15 2010

.SYNOPSIS...MID TO UPPER LEVEL LONGWAVE TROUGH IS SPREAD ACROSS
THE WEST AND SOUTHWEST ATLANTIC TO JUST NORTH OF THE AREA...WITH
SHORTWAVE VORTICES PROPAGATING ALONG THE BASE OF THE TROUGH AND
JUST NORTH OF THE LOCAL ISLANDS. GFS MODEL GUIDANCE SUGGESTS THAT
SOME OF THIS MID TO UPPER LEVEL DYNAMICS WILL MOVE CLOSE ENOUGH
THE REGION TODAY TO PROVIDE ENOUGH SUPPORT FOR INCREASED CONVECTION
ACROSS THE ISLANDS AND SURROUNDING WATERS. IN ADDITION...OLD
FRONTAL BOUNDARY/SHEAR LINE WILL CONTINUE SINK SOUTH ACROSS THE
FORECAST AREA THROUGH THE MORNING HOURS...THEN SPREAD ASSOCIATED
CLOUDINESS AND SHOWERS ACTIVITY OVER PUERTO RICO AND THE ADJACENT
ISLANDS. MEANWHILE SLOWLY WEAKENING COLD FRONT WHICH IS HELPING TO
PUSH SHEAR LINE FURTHER SOUTHWARDS...EXTENDED SOUTHWEST ACROSS THE
DOMINICAN REPUBLIC THIS MORNING...AS SURFACE HIGH PRESSURE WILL
BUILD ACROSS THE SOUTHWEST ATLANTIC.

&&

.DISCUSSION...THE LIGHT NORTHERLY WINDS CONVERGING WITH THE LAND
BREEZE ALONG THE NORTHERN COAST OF PUERTO RICO...BROUGHT AND AREAS
OF MODERATE TO LOCALLY HEAVY RAINFALL ACROSS MUCH OF THE NORTH
COASTAL MUNICIPALITIES DURING THE EARLY MORNING. EXPECT CONTINUED
SHOWER DEVELOPMENT ALONG THE NORTHERN COAST OF PUERTO RICO AND THE
WATERS JUST TO THE NORTH OF PUERTO RICO THROUGH THE REST OF THE
MORNING HOURS. LATEST GFS MODEL GUIDANCE SUGGESTS BEST LOW LEVEL
MOISTURE AND DYNAMICS ASSOCIATED WITH THE SINKING SHEAR LINE...AND
WEAKENING COLD FRONT JUST NORTHWEST OF AREA...WILL EVENTUALLY MOVE
JUST SOUTH OF PUERTO RICO TO NEAR THE VIRGIN ISLANDS LATER THIS
EVENING THROUGH THURSDAY MORNING. IN ADDITION MODEL GUIDANCE NOW
IN AGREEMENT AND SUGGEST MID TO LEVEL PERTURBATIONS WILL CONTINUE
TO PASS SUFFICIENTLY CLOSE TO SUPPORT INCREASED CONVECTION ACROSS
PUERTO RICO AND PARTS OF THE VIRGIN ISLANDS AT LEAST THROUGH
THURSDAY. INHERITED FORECAST TREND THEREFORE LOOKS GOOD FOR NOW
WITH CHANCES FOR RAIN LIKELY OVER THIS TIME PERIOD. EXPECT INCREASING
NORTHEAST TRADES BY FRIDAY ACROSS TE NORTHEAST CARIBBEAN AS SURFACE
HIGH BUILDS NORTH OF THE AREA...AND ASSOCIATED MOISTURE BAND ALONG
THE DISSIPATION FRONTAL BOUNDARY SINKS FURTHER SOUTH OF THE ISLANDS
BY LATE FRIDAY. WITH THAT EXPECT STABLE AIR ADVECTION WITH THE MODERATE
NORTHEASTERLY TRADES AND COOLER SURFACE TEMPERATURES INTO THE WEEKEND.

&&

.AVIATION...MID TO UPPER LEVEL CLOUDINESS WILL CONTINUE TO MOVE
ACROSS THE LOCAL FLYING AREA TODAY. MOSTLY VFR CONDITIONS ARE
EXPECTED AT ALL LOCAL TAF SITES THROUGH 15/14Z. THEREAFTER...
CLOUDINESS ASSOCIATED WITH AN APPROACHING FRONTAL BOUNDARY WILL
GRADUALLY MOVE ACROSS THE LOCAL ISLANDS. TEMPO MVFR CONDS AT TJBQ
AND TJMZ WITH MOUNTAIN OBSCURATIONS INCREASING OVER ALL OF PR AFT
15/16Z. NO FLYING HAZARDS ANTICIPATED EN ROUTE TO OR VCTY OF USVI
TAF SITES.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU 82 72 81 73 / 60 60 60 30
STT 84 72 84 74 / 40 50 50 40

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Re: Caribbean - Central America Weather Thread

#7767 Postby cycloneye » Wed Dec 15, 2010 8:16 am

Posting this warning late because Storm2k was out for a couple of hours.

FLASH FLOOD WARNING
PRC119-151500-
/O.NEW.TJSJ.FF.W.0147.101215T1239Z-101215T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
839 AM AST WED DEC 15 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
THE FOLLOWING MUNICIPALITY

IN PUERTO RICO
RIO GRANDE

* UNTIL 1100 AM AST

* AT 833 AM AST...U.S.G.S. SENSORS INDICATED RIO ESPIRITU SANTO WAS
OVER FLOOD STAGE AND STILL RISING. PERSISTENT MODERATE TO HEAVY
RAINFALL IS EXPECTED TO CONTINUE TO AFFECT RIO GRANDE AT LEAST
THROUGH 1100 AM AST...WHICH WILL AGGRAVATE THE CURRENT SITUATION.
THEREFORE...A FLASH FLOOD WARNING HAS BEEN ISSUED UNTIL 1100 AM AST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 1842 6582 1843 6578 1829 6580 1829 6584

$$

FC/BS

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
HTTP://WWW.WEATHER.GOV/SANJUAN
--------------------------------------------------------------------------------

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Re: Caribbean - Central America Weather Thread

#7768 Postby cycloneye » Wed Dec 15, 2010 8:48 am

FLOOD ADVISORY
NATIONAL WEATHER SERVICE SAN JUAN PR
917 AM AST WED DEC 15 2010

VIC020-030-151615-
/O.NEW.TJSJ.FA.Y.0586.101215T1317Z-101215T1615Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAINT JOHN VI-SAINT THOMAS VI-
917 AM AST WED DEC 15 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED AN

* URBAN AND SMALL STREAM FLOOD ADVISORY
FOR THE FOLLOWING ISLANDS...

IN THE U.S. VIRGIN ISLANDS
SAINT JOHN AND SAINT THOMAS

* UNTIL 1215 PM AST

* AT 913 AM AST...DOPPLER WEATHER RADAR DETECTED AREAS OF SHOWERS
WITH MODERATE TO LOCALLY HEAVY RAINFALL MOVING ACROSS SAINT THOMAS
AND SAINT JOHN. AT LEAST UNTIL 1215 PM AST...SHOWERS WILL CONTINUE
ACROSS THE TERRITORY...PRODUCING PERIODS OF MODERATE TO LOCALLY
HEAVY RAINFALL. SOME ROADS HAS BEEN REPORTED FLOODED.

EXCESSIVE RUNOFF WILL CAUSE FLOODING OF CREEKS AND GUTS...ROADS AND
ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO TRIGGER ROCK AND
MUDSLIDES IN STEEP TERRAIN.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 1827 6470 1827 6498 1831 6508 1844 6509
1843 6498 1840 6467 1831 6463

$$

FC/BS
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Re: Caribbean - Central America Weather Thread

#7769 Postby Macrocane » Wed Dec 15, 2010 9:16 am

COLDEST TEMPERATURES OF THE SEASON REGISTERED TODAY SOME RECORDS MAY HAVE BEEN BROKEN

Very cold temepratures have been registred today in Central America, I think that some records may have been broken, I will try to find additional info and will let you know, the minimum temperatures registered this morning:

Belize city, Belize: 13°C (55°F)
Guatemala city, Guatemala: 8.5°C (47.3°F)
Quetzaltenango, Guatemala: -4.4°C (24.1°F)
San Salvador, El Salvador: 12.7°C (54.9°F)
Las Pilas, El Salvador: 1.5°C (34.7°F) If this temperature is not an error than it breaks the 3.3°C all time record for that station registred last saturday.
Tegucigalpa, Honduras: 8°C (46°F)
La Esperanza, Honduras: 6°C (43°F)
Jinotega, Nicaragua: 13°C (55°F)
Managua, Nicaragua: 17°C (63°F)
San Jose, Costa Rica: 14.5°C (58.1°F)
Turrialba, Costa Rica 5.4°C (41.7°F)
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Re: Caribbean - Central America Weather Thread

#7770 Postby cycloneye » Wed Dec 15, 2010 9:41 am

Macrocane wrote:COLDEST TEMPERATURES OF THE SEASON REGISTERED TODAY SOME RECORDS MAY HAVE BEEN BROKEN

Very cold temepratures have been registred today in Central America, I think that some records may have been broken, I will try to find additional info and will let you know, the minimum temperatures registered this morning:

Belize city, Belize: 13°C (55°F)
Guatemala city, Guatemala: 8.5°C (47.3°F)
Quetzaltenango, Guatemala: -4.4°C (24.1°F)
San Salvador, El Salvador: 12.7°C (54.9°F)
Las Pilas, El Salvador: 1.5°C (34.7°F) If this temperature is not an error than it breaks the 3.3°C all time record for that station registred last saturday.
Tegucigalpa, Honduras: 8°C (46°F)
La Esperanza, Honduras: 6°C (43°F)
Jinotega, Nicaragua: 13°C (55°F)
Managua, Nicaragua: 17°C (63°F)
San Jose, Costa Rica: 14.5°C (58.1°F)
Turrialba, Costa Rica 5.4°C (41.7°F)



Wow,those are incredible low temperatures in a big chunck of Central America. That shows how strong the Cold Front has been that managed to push toward lower latitudes,the very cold air.By the way,the same front is now passing over Puerto Rico, so let's see how the temperatures go down during the night in interior PR.
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Re: Caribbean - Central America Weather Thread

#7771 Postby cycloneye » Wed Dec 15, 2010 9:42 am

FLASH FLOOD WARNING
PRC037-053-151715-
/O.NEW.TJSJ.FF.W.0148.101215T1422Z-101215T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1022 AM AST WED DEC 15 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
THE FOLLOWING MUNICIPALITIES

IN PUERTO RICO
CEIBA
FAJARDO

* UNTIL 115 PM AST

* AT 1016 AM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SHOWERS AND ISOLATED THUNDERSTORMS...SOME WITH LOCALLY HEAVY
RAINFALL AFFECTING THESE MUNICIPALITIES. U.S.G.S. RIVER SENSORS
INDICATED THAT THE LEVELS OF THE RIO FAJARDO WERE JUST BELOW FLOOD
STAGE. RADAR ESTIMATES AND U.S.G.S. GAGES INDICATED THAT 2 TO 3
INCHES OF RAIN HAVE ALREADY FALLEN OVER PARTS OF THE WARNING AREA
AND IT CONTINUED TO RAIN. ADDITIONAL RAINFALL OF 1 TO 2 INCHES ARE
EXPECTED THROUGH 115 PM AST AND THIS WILL CAUSE THE RIO FAJARDO TO
GO OUT OF ITS BANKS AND FLOOD ROAD 3 AND HIGHWAY 53...AS WELL AS
OTHER AREAS ALONG THE RIVER. IN ADDITION...MUDSLIDES ARE POSSIBLE
OVER AREAS OF STEEP TERRAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 1829 6575 1829 6572 1832 6568 1834 6562
1832 6562 1829 6564 1825 6566 1826 6570
1826 6573

$$

BCS/FC

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
HTTP://WWW.WEATHER.GOV/SANJUAN
--------------------------------------------------------------------------------
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Re: Caribbean - Central America Weather Thread

#7772 Postby cycloneye » Wed Dec 15, 2010 10:51 am

Here are three more flood advisories that I combined in this post.

FLOOD ADVISORY
NATIONAL WEATHER SERVICE SAN JUAN PR
1129 AM AST WED DEC 15 2010

PRC021-061-127-151830-
/O.EXT.TJSJ.FA.Y.0584.000000T0000Z-101215T1830Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BAYAMON PR-GUAYNABO PR-SAN JUAN PR-
1129 AM AST WED DEC 15 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* URBAN AND SMALL STREAM FLOOD ADVISORY
FOR THE FOLLOWING MUNICIPALITIES...

IN PUERTO RICO
BAYAMON...GUAYNABO AND SAN JUAN

* UNTIL 230 PM AST

* AT 1125 AM AST...DOPPLER WEATHER RADAR CONTINUED TO INDICATE
SHOWERS...SOME WITH MODERATE TO LOCALLY HEAVY RAINFALL...AFFECTING
THESE MUNICIPALITIES. RADAR ESTIMATES AND U.S.G.S. GAGES INDICATE
THAT 1 TO 3 INCHES OF RAIN HAVE ALREADY FALLEN OVER PARTS OF THE
ADVISORY AREA AND IT CONTINUED TO RAIN. ADDITIONAL RAINFALL OF AT
LEAST 1 INCH IS EXPECTED THROUGH 230 PM AST.

EXCESSIVE RUNOFF WILL CONTINUE TO CAUSE FLOODING OF CREEKS AND
STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO
TRIGGER ROCK AND MUDSLIDES IN STEEP TERRAIN.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE
INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE
USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS
POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING
FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 1845 6614 1842 6606 1826 6613 1829 6621

$$

BCS
--------------------------------------------------------------------------------

FLOOD ADVISORY
NATIONAL WEATHER SERVICE SAN JUAN PR
1115 AM AST WED DEC 15 2010

PRC039-047-051-091-101-135-143-145-151815-
/O.NEW.TJSJ.FA.Y.0587.101215T1515Z-101215T1815Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CIALES PR-COROZAL PR-MOROVIS PR-TOA ALTA PR-VEGA ALTA PR-DORADO PR-
MANATI PR-VEGA BAJA PR-
1115 AM AST WED DEC 15 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* URBAN AND SMALL STREAM FLOOD ADVISORY
FOR THE FOLLOWING MUNICIPALITIES...

IN PUERTO RICO
CIALES...COROZAL...MOROVIS...TOA ALTA...VEGA ALTA...DORADO...
MANATI AND VEGA BAJA

* UNTIL 215 PM AST

* AT 1110 AM AST...DOPPLER WEATHER RADAR CONTINUED TO INDICATE
SHOWERS AND ISOLATED THUNDERSTORMS...SOME WITH MODERATE TO LOCALLY
HEAVY RAINFALL...AFFECTING THESE MUNICIPALITIES. RADAR ESTIMATES AND
U.S.G.S. GAGES INDICATE THAT 1 TO 3 INCHES OF RAIN HAVE ALREADY
FALLEN OVER PARTS OF THE ADVISORY AREA AND IT CONTINUED TO RAIN.
ADDITIONAL RAINFALL OF AT LEAST 1 INCH IS EXPECTED THROUGH 215 PM
AST.

EXCESSIVE RUNOFF WILL CONTINUE TO CAUSE FLOODING OF CREEKS AND
STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO
TRIGGER ROCK AND MUDSLIDES IN STEEP TERRAIN.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE
INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE
USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS
POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING
FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 1848 6643 1840 6627 1829 6629 1837 6648

$$

BCS
--------------------------------------------------------------------------------

FLOOD ADVISORY
NATIONAL WEATHER SERVICE SAN JUAN PR
1109 AM AST WED DEC 15 2010

PRC029-031-037-053-087-089-103-119-151815-
/O.EXT.TJSJ.FA.Y.0582.000000T0000Z-101215T1815Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LUQUILLO PR-NAGUABO PR-CEIBA PR-CANOVANAS PR-FAJARDO PR-CAROLINA PR-
LOIZA PR-RIO GRANDE PR-
1109 AM AST WED DEC 15 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* URBAN AND SMALL STREAM FLOOD ADVISORY
FOR THE FOLLOWING MUNICIPALITIES...

IN PUERTO RICO
LUQUILLO...NAGUABO...CEIBA...CANOVANAS...FAJARDO...CAROLINA...
LOIZA AND RIO GRANDE

* UNTIL 215 PM AST

* AT 1108 AM AST...DOPPLER WEATHER RADAR DETECTED AREAS OF SHOWERS
WITH MODERATE TO LOCALLY HEAVY RAINFALL MOVING TOWARDS OR ACROSS
THESE MUNICIPALITIES OF PUERTO RICO. AT LEAST UNTIL 215 PM
AST...SHOWERS WILL CONTINUE ACROSS THESE SECTIONS OF PUERTO
RICO...PRODUCING PERIODS OF MODERATE TO LOCALLY HEAVY RAINFALL.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON
SMALL CREEKS AND STREAMS...AND PONDING OF WATER IN URBAN AREAS...
HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER POOR DRAINAGE
AREAS AND LOW LYING SPOTS.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 1844 6591 1834 6565 1824 6566 1833 6596

$$

CASTRO
--------------------------------------------------------------------------------
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Re: Caribbean - Central America Weather Thread

#7773 Postby cycloneye » Wed Dec 15, 2010 2:20 pm

Two more flood advisories.

FLOOD ADVISORY
NATIONAL WEATHER SERVICE SAN JUAN PR
227 PM AST WED DEC 15 2010

PRC021-061-127-152130-
/O.EXT.TJSJ.FA.Y.0584.000000T0000Z-101215T2130Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BAYAMON PR-GUAYNABO PR-SAN JUAN PR-
227 PM AST WED DEC 15 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* URBAN AND SMALL STREAM FLOOD ADVISORY
FOR THE FOLLOWING MUNICIPALITIES...

IN PUERTO RICO
BAYAMON...GUAYNABO AND SAN JUAN

* UNTIL 530 PM AST

DOPPLER WEATHER RADAR CONTINUES TO DETECTED AREAS
OF SHOWERS WITH MODERATE TO LOCALLY HEAVY RAINFALL MOVING TOWARDS OR
ACROSS THESE MUNICIPALITIES OF PUERTO RICO. AT LEAST UNTIL 530 PM
AST...SHOWERS WILL CONTINUE ACROSS THESE SECTIONS OF PUERTO
RICO...PRODUCING PERIODS OF MODERATE TO LOCALLY HEAVY RAINFALL.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 1845 6614 1842 6606 1826 6613 1829 6621

$$

CASTRO
--------------------------------------------------------------------------------

FLOOD ADVISORY
NATIONAL WEATHER SERVICE SAN JUAN PR
208 PM AST WED DEC 15 2010

PRC039-047-051-091-101-135-143-145-152115-
/O.EXT.TJSJ.FA.Y.0587.000000T0000Z-101215T2115Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CIALES PR-COROZAL PR-MOROVIS PR-TOA ALTA PR-VEGA ALTA PR-DORADO PR-
MANATI PR-VEGA BAJA PR-
208 PM AST WED DEC 15 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* URBAN AND SMALL STREAM FLOOD ADVISORY
FOR THE FOLLOWING MUNICIPALITIES...

IN PUERTO RICO
CIALES...COROZAL...MOROVIS...TOA ALTA...VEGA ALTA...DORADO...
MANATI AND VEGA BAJA

* UNTIL 515 PM AST

* AT 208 PM AST...DOPPLER WEATHER RADAR CONTINUES TO DETECTED AREAS
OF SHOWERS WITH MODERATE TO LOCALLY HEAVY RAINFALL MOVING TOWARDS OR
ACROSS THESE MUNICIPALITIES OF PUERTO RICO. AT LEAST UNTIL 515 PM
AST...SHOWERS WILL CONTINUE ACROSS THESE SECTIONS OF PUERTO
RICO...PRODUCING PERIODS OF MODERATE TO LOCALLY HEAVY RAINFALL.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 1848 6643 1840 6627 1829 6629 1837 6648

$$

CASTRO
--------------------------------------------------------------------------------

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Re: Caribbean - Central America Weather Thread

#7774 Postby cycloneye » Wed Dec 15, 2010 3:38 pm


AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
410 PM AST WED DEC 15 2010

.SYNOPSIS...MID TO UPPER LEVEL TROUGHINESS WILL CONTINUE ACROSS THE
WEST AND SOUTHWEST ATLANTIC THROUGH TONIGHT OR EARLY THURSDAY...
BEFORE SLOWLY LIFTING OUT TO THE EAST NORTHEAST LATER THURSDAY
THROUGH FRIDAY...AS MID TO UPPER LEVEL RIDGE BUILDS ACROSS THE
CARIBBEAN. THIS RIDGE IS GENERALLY EXPECTED TO HOLD THROUGH
SATURDAY AND POSSIBLY SUNDAY.

&&

.DISCUSSION...A COLD FRONT WILL CONTINUE TO SINK SLOWLY SOUTHEAST
ACROSS THE LOCAL AREA THE REST OF THIS AFTERNOON THROUGH THURSDAY.
KUDOS TO NCEP TROPICAL DESK AND MODEL PROJECTIONS FOR CORRECTLY
SHOWING AREAS OF HEAVY RAINFALL THAT HAVE AFFECTED PARTS OF NORTH
PUERTO RICO SINCE LATE WEDNESDAY NIGHT...WITH LOCALIZED 3 TO 5
INCH AMOUNTS ALREADY REPORTED. AS THIS BOUNDARY CONTINUES
DRIFTING SOUTHEAST TONIGHT THROUGH EARLY THURSDAY...EXPECT
ADDITIONAL RAINFALL...WITH LOCALIZED HEAVY AMOUNTS...OVER THE
NORTH...NORTHEAST AND INTERIOR SECTIONS OF PUERTO RICO EASTWARD
ACROSS CULEBRA AND THE NORTHERN U.S. VIRGIN ISLANDS...WITH A
GRADUAL SHIFTING TREND MORE AND MORE TOWARD THE EAST AND
SOUTHEAST OVERNIGHT TONIGHT THROUGH THURSDAY. STILL THINK THAT
THE REMNANTS OF THE BOUNDARY WILL LINGER ACROSS THE LOCAL ISLANDS
THROUGH THURSDAY NIGHT AND POSSIBLY EARLY FRIDAY...BEFORE IT IS
FAR ENOUGH SOUTH OF THE LOCAL ISLANDS AND WEAK ENOUGH THAT IT
SHOULD NOT HAVE A BIG EFFECT ON THE LOCAL SENSIBLE WEATHER. AT
THIS TIME...GENERALLY FAIR AND DRIER CONDITIONS ARE INDICATED FOR
SATURDAY AND SUNDAY.

A HIGH SURF ADVISORY REMAINS IN EFFECT FOR THE NORTHWEST THROUGH
NORTHEAST COASTS OF PUERTO RICO...CULEBRA AND THE NORTHERN U.S.
VIRGIN ISLANDS AND HAS BEEN EXTENDED UNTIL 4 PM AST THURSDAY.

&&

.AVIATION...EXPECT PREVAILING VFR CONDITIONS ACROSS MOST OF THE
LOCAL TAF SITES THROUGH TONIGHT...BUT WITH BRIEF MVFR CONDITIONS
AND LOCAL MOUNTAIN OBSCURATIONS EXPECTED IN SCATTERED PASSING
SHOWERS. HOWEVER...OVER THE INTERIOR AND NORTH SECTIONS OF PUERTO
RICO...INCLUDING TJSJ AND TJNR...EXPECT PREVAILING MVFR
CONDITIONS AND MOUNTAIN OBSCURATIONS...WITH OCCASIONAL IFR
CONDITIONS...IN NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS.

&&

.MARINE...LARGE...LONG PERIOD NORTHWEST SWELLS HAVE GENERALLY
PEAKED ACROSS THE LOCAL ATLANTIC WATERS AND THE CARIBBEAN
PASSAGES...BUT WILL CONTINUE TO AFFECT THE WATERS THROUGH AT
LEAST THURSDAY NIGHT...WHILE SLOWLY SUBSIDING. THESE SWELLS WILL
CONTINUE TO PRODUCE ROUGH AND HAZARDOUS MARINE CONDITIONS. SMALL
CRAFT ADVISORIES REMAIN IN EFFECT FOR ALL OF THE LOCAL COASTAL
WATERS TONIGHT.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU 72 79 73 81 / 60 60 30 30
STT 72 82 74 84 / 50 50 40 40

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Re: Caribbean - Central America Weather Thread

#7775 Postby Macrocane » Wed Dec 15, 2010 8:09 pm

Good evening! The winds have diminished in Central America, today the temperatures remained cool the whole day at least in El Salvador. For example San Salvador registered yesterday and today a maximum of 26°C (78.8°F) when the average for this time of year is 30°C (86°F), San Miguel regsitered 32°C (89.6°F) when the average is 35°C (95°F). Tomorrow the temperatures may start to rise as no more high pressures are going to affect us. This is the latest TWD:

GAP WINDS...
AN ASCAT PASS THIS MORNING UTC SHOWED 20-25 KT WINDS THROUGH THE
GULFS OF PAPAGAYO AND FONSECA AND A WINDSAT PASS THIS AFTERNOON
20-25 KT WINDS DOWNSTREAM OF THE GULF OF TEHUANTEPEC. WINDS IN
THE GULFS OF TEHAUNTEPEC AND FONSECA WILL DIMINISH BELOW 20 KT
TONIGHT...WHILE WINDS IN THE GULF OF PAPAGAYO ARE EXPECTED TO
PULSE TO 20-25 KT CLOSE TO THE COAST THROUGH FRI MORNING
.N WINDS
OF 20-25 KT S OF THE GULF OF PANAMA TO 04N ARE EXPECTED BASED ON
WW3 MODEL GUIDANCE. WINDS WILL GRADUALLY DIMINISH TO AROUND 20 KT
THU MORNING AND SHRINK NORTHWARD CLOSER TO THE COAST FRI MORNING.
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Re: Caribbean - Central America Weather Thread

#7776 Postby Macrocane » Wed Dec 15, 2010 8:12 pm

Hey cycloneye, I guess that after today's rains 2010 is now closer to the record of the wettest year in San Juan isn't it?
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Re: Caribbean - Central America Weather Thread

#7777 Postby cycloneye » Wed Dec 15, 2010 8:16 pm

FLOOD ADVISORY
NATIONAL WEATHER SERVICE SAN JUAN PR
856 PM AST WED DEC 15 2010

PRC021-029-031-033-061-087-089-119-127-137-139-160400-
/O.NEW.TJSJ.FA.Y.0589.101216T0056Z-101216T0400Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BAYAMON PR-TRUJILLO ALTO PR-LUQUILLO PR-GUAYNABO PR-CANOVANAS PR-
CAROLINA PR-CATANO PR-SAN JUAN PR-LOIZA PR-RIO GRANDE PR-TOA BAJA PR-
856 PM AST WED DEC 15 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED AN

* URBAN AND SMALL STREAM FLOOD ADVISORY
FOR THE FOLLOWING MUNICIPALITIES...

IN PUERTO RICO
BAYAMON...TRUJILLO ALTO...LUQUILLO...GUAYNABO...CANOVANAS...
CAROLINA...CATANO...SAN JUAN...LOIZA...RIO GRANDE AND TOA BAJA

* UNTIL MIDNIGHT AST

* AT 853 PM AST...THE DOPPLER WEATHER RADAR DETECTED AREAS OF
SHOWERS WITH MODERATE TO LOCALLY HEAVY RAINFALL MOVING TOWARDS OR
ACROSS THESE MUNICIPALITIES OF PUERTO RICO. AT LEAST UNTIL
MIDNIGHT... SHOWERS WILL CONTINUE TO MOVE OVER THE NORTHEAST
PORTIONS OF PUERTO RICO...PRODUCING PERIODS OF MODERATE TO LOCALLY
HEAVY RAINFALL.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 1841 6619 1851 6618 1852 6605 1840 6569
1829 6573

$$

EM
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Re: Caribbean - Central America Weather Thread

#7778 Postby cycloneye » Wed Dec 15, 2010 8:23 pm

Macrocane wrote:Hey cycloneye, I guess that after today's rains 2010 is now closer to the record of the wettest year in San Juan isn't it?


Yes!!! This data is until 5 PM AST and until then, 1.33 inches fell.Tonight it's a heavy downpour falling in San Juan,and that for sure will be the record breaker by reaching 87.55 inches.

Code: Select all

...THE SAN JUAN/P.R. CLIMATE SUMMARY FOR DECEMBER 15 2010...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1956 TO 2010


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

PRECIPITATION (IN)
  TODAY            1.33          3.28 1934   0.15   1.18     0.05
  MONTH TO DATE    3.50                      2.51   0.99     1.64
  SINCE DEC 1      3.50                      2.51   0.99     1.64
  SINCE JAN 1     85.54                     48.70  36.84    64.67

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Re: Caribbean - Central America Weather Thread

#7779 Postby tropicana » Wed Dec 15, 2010 9:24 pm

Regional Highs and Rainfall ( 7pmEt Tue-7pmET Wed)
for Wed Dec 15 2010

Piarco Airport, Trinidad 25.4C 77F 5.9mm
Maraval, NW Trinidad 25.2C 77F 9.7mm
Crown Point, Tobago 26.4C 79F 7.0mm

Point Salines, Grenada 29.5C 86F 9.8mm
Grantley Adams, Barbados 29.2C 85F 0.1mm
Hewannora Airport, St Lucia 30.4C 86F
LeLamentin, Martinique 31.5C 89F
Melville Hall, Dominica 29.6C 86F

VC Bird, Antigua 28.8C 84F
Golden Rock, St Kitts 28.8C 84F 61.6mm
San Juan, Puerto Rico 24.4C 76F 48.0mm

Owen Roberts, Grand Cayman 21.4C 70F
Kingston, Jamaica 27.0C 81F
Montego Bay, Jamaica 24.0C 75F trace
Havana, Cuba 19.1C 66F
Miami, Florida 17.2C 62F
Nassau, Bahamas 20.5C 69F
Hamilton, Bermuda 15.7C 60F 2.3mm

Hato Airport, Curacao 29.7C 86F 7.5mm
Queen Beatrix, Aruba 29.8C 86F 1.6mm
Flamingo Airport, Bonaire 31.3C 88F 0.1mm

-justin-
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Re: Caribbean - Central America Weather Thread

#7780 Postby Macrocane » Wed Dec 15, 2010 10:29 pm

:uarrow: Thanks tropicana, the high temperatures in Jamaica, Cuba, Florida, Bahamas and Cayman were pretty low thanks to the same cold air mass that brought the cold temperatures to Central America.
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