Caribbean - Central America Weather

[cycloneye]

[bvigal]

No more thunder since the big clap, so I didn't shut off. But I found out one very unpleasant fact, it's already raining a lot in Haiti! I really hate to see it!!

[bvigal]

Flash flood WARNINGS for St. Croix, and St. Thomas/St. John have both been extended for the 2nd time, St. Croix since 1:14pm, St. Thomas/St. John since 2pm.

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

FLASH FLOOD WARNING
VIC010-210445-
/O.EXT.TJSJ.FF.W.0070.000000T0000Z-100721T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
812 PM AST TUE JUL 20 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
THE FOLLOWING ISLAND

IN THE U.S. VIRGIN ISLANDS
SAINT CROIX

* UNTIL 1245 AM AST

* AT 808 PM AST...DOPPLER RADAR INDICATED ANOTHER ROUND OF SHOWERS
AND THUNDERSTORMS MOVING INTO SAINT CROIX. THIS IS IN ADDITION TO
THE RAIN THAT HAS BEEN POUNDING THESE ISLANDS ON AND OFF ALL DAY.
WITH THE CURRENT URBAN FLOODING...SWOLLEN RIVERS... STREAMS...AND
GUTS AND THE IMPENDING RAINFALL...A FLASH FLOOD WARNING IS NOW IN
EFFECT FOR THE ISLAND OF SAINT CROIX.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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 1768 6459 1764 6491 1768 6494 1777 6494
1782 6481 1778 6455 1773 6455

$$

ER

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

FLASH FLOOD WARNING
VIC020-030-210430-
/O.NEW.TJSJ.FF.W.0072.100721T0001Z-100721T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
801 PM AST TUE JUL 20 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
THE FOLLOWING ISLANDS

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

* UNTIL 1230 AM AST

* AT 753 PM AST...DOPPLER RADAR INDICATED ANOTHER ROUND OF SHOWERS
AND THUNDERSTORMS MOVING INTO SAINT THOMAS AND SAINT JOHN. THIS IS
IN ADDITION TO THE RAIN THAT HAS BEEN POUNDING THESE ISLANDS ON AND
OFF ALL DAY. WITH THE CURRENT URBAN FLOODING...SWOLLEN RIVERS...
STREAMS...AND GUTS AND THE IMPENDING RAINFALL...A FLASH FLOOD
WARNING IS NOW IN EFFECT FOR THE ISLANDS OF SAINT JOHN AND SAINT
THOMAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN MOUNTAINOUS OR HILLY TERRAIN...THERE ARE HUNDREDS OF LOW WATER
CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT
ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT
ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES
AWAY.

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 1830 6463 1828 6470 1828 6496 1831 6499
1841 6502 1840 6467 1839 6465

$$

ER

[cycloneye]

FLOOD ADVISORY
NATIONAL WEATHER SERVICE SAN JUAN PR
849 PM AST TUE JUL 20 2010

PRC037-053-089-103-119-210345-
/O.NEW.TJSJ.FA.Y.0290.100721T0049Z-100721T0345Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LUQUILLO PR-NAGUABO PR-CEIBA PR-FAJARDO PR-RIO GRANDE PR-
849 PM AST TUE JUL 20 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED AN

* URBAN AND SMALL STREAM FLOOD ADVISORY FOR RAPID RIVER RISES IN
FOR THE FOLLOWING MUNICIPALITIES...

IN PUERTO RICO
LUQUILLO...NAGUABO...CEIBA...FAJARDO AND RIO GRANDE

* UNTIL 1145 PM AST

* AT 846 PM AST...DOPPLER RADAR CONTINUED TO SHOW A PERSISTENT
MODERATE RAIN ACROSS EASTERN PORTIONS OF PUERTO RICO. THESE SHOWERS
ARE MOVING SLOWLY AND ARE CAPABLE TO GENERATE BETWEEN ONE TO TWO
INCHES OF RAIN IN THE NEXT FEW HOURS ACROSS PORTIONS OF THE ADVISORY
AREA.THIS SHOWER ACTIVITY WILL HAVE THE CAPABILITY OF PRODUCING
RAPID RISES IN SMALL STREAMS AND CREEKS...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.

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. MOVE TO HIGHER GROUND.

&&

LAT...LON 1837 6563 1821 6560 1818 6574 1820 6583
1827 6583 1829 6586 1844 6588

$$

ER

[Gustywind]

No more thunder since the big clap, so I didn't shut off. But I found out one very unpleasant fact, it's already raining a lot in Haiti! I really hate to see it!!

Troubles ahead for them,

[Gustywind]

Gigantic system and we're only in July...

[cycloneye]

FLASH FLOOD WARNING
PRC037-053-210445-
/O.NEW.TJSJ.FF.W.0073.100721T0151Z-100721T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
951 PM AST TUE JUL 20 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
THE FOLLOWING MUNICIPALITIES

IN PUERTO RICO
CEIBA
FAJARDO

* UNTIL 1245 AM AST

* AT 945 PM AST...EMERGENCY MANAGEMENT OFFICIALS REPORTED RIO FAJARDO
WAS OUT OF ITS BANKS AT THE INTERSECTION OF ROAD 3 AND HIGHWAY 53
BETWEEN FAJARDO AND CEIBA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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 1835 6563 1830 6562 1824 6570 1829 6575

$$

ER

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

[cycloneye]

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
1006 PM AST TUE JUL 20 2010

.UPDATE...ACTIVE NIGHT ONE MORE TIME. SEVERAL FLS`S...FFW`S...AND
MWS ISSUED FOR PUERTO RICO...CULEBRA...VIEQUES AND THE U.S. VIRGIN
ISLANDS. HEAVY RAIN CONTINUED OVER THE EASTERN HALF OF PUERTO
RICO...AND LATEST RADAR IMAGES SHOWED SHOWERS AND THUNDERSTORMS
ACROSS SOUTHWESTERN PUERTO RICO. THIS WET PATTERN IS EXPECTED
TO CONTINUE AT LEAST NEXT 24 TO 36 HOURS. THEREFORE...THE FFA HAS
BEEN EXTENDED UNTIL 8 PM AST TOMORROW.

&&

.AVIATION...VFR AND POSSIBLE IFR CONDITIONS WILL CONTINUE ACROSS
TISX...AND ITST OVERNIGHT. PERIODS OF MVFR CONDITIONS WILL OCCUR
FROM TIME TO TIME ACROSS TNCM...AND TKPK ALSO OVERNIGHT. BRIEF
PERIODS OF MVFR CONDITIONS ARE POSSIBLE ACROSS TJBQ...AND TJPS.
VFR CONDITIONS WILL PREVAIL ACROSS TJSJ...HOWEVER...DURING THE
EARLY MORNING HOURS SHRA ARE EXPECTED TO AFFECTED THE AREA

[cycloneye]

FLOOD ADVISORY
NATIONAL WEATHER SERVICE SAN JUAN PR
1025 PM AST TUE JUL 20 2010

PRC001-011-013-017-023-027-054-055-059-065-067-073-079-081-083-093-
097-099-111-113-115-117-121-125-131-141-153-210515-
/O.NEW.TJSJ.FA.Y.0291.100721T0225Z-100721T0515Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HORMIGUEROS PR-FLORIDA PR-JAYUYA PR-ADJUNTAS PR-MARICAO PR-MOCA PR-
QUEBRADILLAS PR-SABANA GRANDE PR-SAN GERMAN PR-SAN SEBASTIAN PR-
UTUADO PR-YAUCO PR-LAS MARIAS PR-LARES PR-GUAYANILLA PR-
BARCELONETA PR-CAMUY PR-GUANICA PR-HATILLO PR-PONCE PR-CABO ROJO PR-
MAYAGUEZ PR-RINCON PR-PENUELAS PR-LAJAS PR-ANASCO PR-ARECIBO PR-
1025 PM AST TUE JUL 20 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED AN

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

IN PUERTO RICO
HORMIGUEROS...FLORIDA...JAYUYA...ADJUNTAS...MARICAO...MOCA...
QUEBRADILLAS...SABANA GRANDE...SAN GERMAN...SAN SEBASTIAN...
UTUADO...YAUCO...LAS MARIAS...LARES...GUAYANILLA...
BARCELONETA...CAMUY...GUANICA...HATILLO...PONCE...CABO ROJO...
MAYAGUEZ...RINCON...PENUELAS...LAJAS...ANASCO AND ARECIBO

* UNTIL 115 AM AST

* AT 1018 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED
TO SHOW A PERSISTENT MODERATE TO LOCALLY HEAVY RAINFALL ACROSS THE
WESTERN HALF OF PUERTO RICO. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2
INCHES ARE POSSIBLE ACROSS THE ADVISORY AREA.

THESE SHOWERS ARE MOVING SLOWLY AND HAVE THE CAPABILITY OF PRODUCING
RAPID RISES IN SMALL STREAMS AND CREEKS...AND PONDING OF WATER IN
URBAN AREAS...HIGHWAYS... STREETS AND UNDERPASSES AS WELL AS OTHER
POOR DRAINAGE AREAS AND LOW LYING SPOTS...AS WELL AS INCREASE THE
POTENTIAL FOR MUDSLIDES IN AREAS OF STEEP TERRAIN.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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.

[Gustywind]

000
ABNT20 KNHC 202331
TWOAT
TROPICAL WEATHER OUTLOOK
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
800 PM EDT TUE JUL 20 2010

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

A VIGOROUS TROPICAL WAVE...LOCATED NEAR THE EASTERN DOMINICAN
REPUBLIC...IS PRODUCING A LARGE AREA OF SHOWERS AND THUNDERSTORMS
EXTENDING FROM THE NORTHERN LEEWARD ISLANDS WESTWARD TO HISPANIOLA.
SURFACE OBSERVATIONS INDICATE THAT A CLOSED CIRCULATION HAS NOT YET
FORMED. HOWEVER...ENVIRONMENTAL CONDITIONS ARE EXPECTED TO BE
FAVORABLE FOR TROPICAL CYCLONE FORMATION AS THE SYSTEM MOVES
WEST-NORTHWESTWARD AT ABOUT 10 MPH DURING THE NEXT DAY OR SO.
THERE IS A HIGH CHANCE... 60 PERCENT...OF THIS SYSTEM BECOMING A
TROPICAL DEPRESSION OR A TROPICAL STORM DURING THE NEXT 48 HOURS.
REGARDLESS OF DEVELOPMENT...LOCALLY HEAVY RAINFALL AND GUSTY WINDS
WILL LIKELY AFFECT THE VIRGIN ISLANDS...PUERTO RICO...THE DOMINICAN
REPUBLIC... HAITI...EASTERN CUBA...THE TURKS AND CAICOS ISLANDS...
AND THE BAHAMAS DURING THE NEXT COUPLE OF DAYS. THE HEAVY RAINS
COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES IN
MOUNTAINOUS AREAS.

ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.

$$
FORECASTER PASCH

[cycloneye]

This is a road that was damaged by a river that went out of bank in Fajardo on NE Puerto Rico.



Another road in Fajardo inundated.

[Gustywind]

This is a road that was damaged by a river that went out of bank in Fajardo on NE Puerto Rico.



Another road in Fajardo inundated.

[cycloneye]

SPECIAL MARINE WARNING
AMZ710-712-210445-
/O.NEW.TJSJ.MA.W.0040.100721T0254Z-100721T0445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1054 PM AST TUE JUL 20 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM...
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N...

* UNTIL 1245 AM AST

* AT 1050 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
CLUSTERS OF THUNDERSTORMS...PRODUCING STRONG WINDS 34 KNOTS OR
GREATER OVER ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO
19.5N...OR ABOUT 20 NM NORTHEAST OF ARECIBO BAY...MOVING NORTHEAST
AT 5 KNOTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MARINERS CAN EXPECT GUSTY WINDS...HIGH WAVES...DANGEROUS LIGHTNING...
AND HEAVY RAINS. BOATERS SHOULD SEEK SAFE HARBOR IMMEDIATELY...UNTIL
THIS STORM PASSES.

THUNDERSTORMS CAN PRODUCE SUDDEN WATERSPOUTS. WATERSPOUTS CAN EASILY
OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS SEAS. SEEK SAFE HARBOR
IMMEDIATELY.

[cycloneye]

FLOOD ADVISORY
NATIONAL WEATHER SERVICE SAN JUAN PR
1154 PM AST TUE JUL 20 2010

PRC007-021-025-031-033-061-063-087-127-137-139-210945-
/O.NEW.TJSJ.FA.Y.0292.100721T0354Z-100721T0945Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BAYAMON PR-CAGUAS PR-AGUAS BUENAS PR-GURABO PR-TRUJILLO ALTO PR-
GUAYNABO PR-CAROLINA PR-CATANO PR-SAN JUAN PR-LOIZA PR-TOA BAJA PR-
1154 PM AST TUE JUL 20 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...CAGUAS...AGUAS BUENAS...GURABO...TRUJILLO ALTO...
GUAYNABO...CAROLINA...CATANO...SAN JUAN...LOIZA AND TOA BAJA

* UNTIL 545 AM AST

* AT 1151 PM AST DOPPLER RADAR INDICATED VERY HEAVY RAIN FALLING IN
THE SAN JUAN AND CAGUAS METRO AREAS WITH RAINFALL RATES OF ONE TO
ONE AND HALF INCHES PER HOUR. RAIN LOOKS LIKE WILL PERSIST FOR
SEVERAL MORE HOURS AND CAUSE FLOODING OF SMALL CREEKS AND URBAN
AREAS.

ADDITIONAL RAINFALL AMOUNTS OF TWO TO FOUR 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 1841 6619 1841 6625 1845 6626 1849 6622
1847 6595 1827 6592 1828 6607 1822 6611
1822 6617

$$

ROSA

[knotimpaired]

Good morning everyone,

Vieques got hit really bad yesterday morning. It started at about 12:20 am and the heavy rain did not stop until about 5 am and we have light rain after that most of the day. We have had major flooding and also have many trees down. Not from the wind but the saturated ground.

All phones are out as well as DSL. I just now finally got a connection with my Sprint air card which I have for emergencies such as this. Businesses are not running as normal since they cannot take credit cards.

Before our weather station stopped transmitting at about 6 am yesterday we had received 5.80" of rain. We think it stopped transmitting due to the fact it is wireless and relies on its own solar power and we have not seen sun here since thursday or friday (to early to remember). It is a Weatherhawk system and when it comes back online you can see it at http://www.playacofi.com/weather

That's all for now, I will update the next time I get a connection.

K

[Gustywind]

Good morning everyone,

Vieques got hit really bad yesterday morning. It started at about 12:20 am and the heavy rain did not stop until about 5 am and we have light rain after that most of the day. We have had major flooding and also have many trees down. Not from the wind but the saturated ground.

All phones are out as well as DSL. I just now finally got a connection with my Sprint air card which I have for emergencies such as this. Businesses are not running as normal since they cannot take credit cards.

Before our weather station stopped transmitting at about 6 am yesterday we had received 5.80" of rain. We think it stopped transmitting due to the fact it is wireless and relies on its own solar power and we have not seen sun here since thursday or friday (to early to remember). It is a Weatherhawk system and when it comes back online you can see it at http://www.playacofi.com/weather

That's all for now, I will update the next time I get a connection.

K

One word just waouw be safe an extremely dry, worrying situation in Vieques!
Gustywind

[Gustywind]

[cycloneye]

Good morning. More rain for today.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
430 AM AST WED JUL 21 2010

.SYNOPSIS...TROPICAL WAVE NORTH OF THE DOMINICAN REPUBLIC WILL
CONTINUE TO MOVE AWAY FROM THE LOCAL AREA TODAY. MID-UPPER LVL
RIDGE WILL BUILD OVR THE LOCAL AREA OVR THE NEXT 24 HRS.

&&

.DISCUSSION...BUILDING MID-UPPER LVL RIDGE OVR THE LOCAL AREA AND
DEPARTING TROPICAL WAVE WILL LIMIT THE POTENTIAL FOR ORGANIZED
HEAVY RAINFALL TODAY. HOWEVER...DEEP SSE FLOW AND ANOMALOUS MOISTURE
WITH PW VALUES AROUND 2.5 INCHES WILL MAINTAIN HIGH CHANCES OF
PRECIP FOR THE NEXT 48 HRS. FOR TODAY...EXPECT CLOUDY AND DREARY
CONDITIONS WITH LIGHT TO MODERATE SHOWERS. AGAIN...BELIEVE THAT
ORGANIZED HEAVY RAINFALL IS UNLIKELY TODAY BUT ABOVE NORMAL STREAM
AND RIVER FLOW AND SATURATED SOILS ESPECIALLY ACROSS THE ERN THIRD
OF PR WILL MAINTAIN THE RISK OF SOME FLASH FLOODING. SO WILL
KEEP FLOOD WATCH UNTIL SCHEDULED EXPIRATION TIME OF 8PM. 00Z GFS
SHOWS ANOTHER SURGE OF MOISTURE WORKING INTO THE AREA EARLY THU
BUT AM NOT SURE ABOUT THIS DUE TO THE WEAKENING DYNAMICS AS
TROPICAL WAVE MOVES FURTHER AWAY FROM THE AREA BUT WITH THE
ANOMALOUS MOISTURE I CANT STILL RULED OUT ANOTHER BIG BLOWUP OF
CONVECTION.

DRIER AIR WILL START TO WORK INTO THE ISLANDS FROM THE EAST THU
NIGHT WITH A RETURN TO MORE TYPICAL JULY LIKE CONDITIONS FOR THE
WEEKEND.


&&

.AVIATION...DEEP TROPICAL MOISTURE BEHIND A TROPICAL WAVE ACROSS
HISPANIOLA WILL CONTINUE TO OVERSPREAD CLOUDS AND SHRA ACROSS THE
LOCAL REGION. TEMPO MVFR CONDS AND MOUNTAIN OBSCURATIONS EXPECTED
ACROSS ALL TAF SITES IN SHRA OR TSRA.

&&

.MARINE...SEAS OF UP TO 2.2 METERS AND GUSTS UP TO 31 KT BEING
REPORTED AT BUOY 41043 ATTM. SO MARGINAL SCA CONDITIONS LIKELY
STILL OCCCURRING ACROSS AMZ710.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU 80 75 80 77 / 70 70 70 70
STT 82 78 82 79 / 80 70 70 60

[Gustywind]

More rain coming here...

[Gustywind]

000
AWCA82 TJSJ 210909
RWSVI

WEATHER SUMMARY FOR THE U.S. VIRGIN ISLANDS
NATIONAL WEATHER SERVICE SAN JUAN PR
509 AM AST WED JUL 21 2010

MOSTLY CLOUDY SKIES PREVAILED ACROSS THE U.S. VIRGIN ISLANDS DURING
THE OVERNIGHT AND EARLY MORNING HOURS. SCATTERED TO NUMEROUS
SHOWERS AND ISOLATED THUNDERSTORMS WERE OBSERVED ACROSS THE LOCAL
ISLANDS...AS WELL AS OVER THE REGIONAL WATERS. TEMPERATURES WERE
IN THE MID 70S WHILE THE WIND WAS LIGHT AND VARIABLE.

DEEP TROPICAL MOISTURE BEHIND A TROPICAL WAVE LOCATED ACROSS
HISPANIOLA WILL CONTINUE TO OVERSPREAD CLOUDS AND SHOWERS ACROSS
THE LOCAL REGION TODAY. DUE TO ALREADY SATURATED SOILS...ANY
ADDITIONAL RAINFALL WILL LIKELY RESULT IN RAPID RISES IN SMALL
STREAMS AND CREEKS AS WELL AS INCREASE THE POTENTIAL FOR MUDSLIDES
IN AREAS OF STEEP TERRAIN. A FLASH FLOOD WATCH CONTINUES IN EFFECT
FOR THE U.S VIRGIN ISLANDS THROUGH 8:00 PM AST WEDNESDAY.

ACROSS THE COASTAL WATERS...MARINERS SHOULD EXPECT WINDS OF 21 KNOTS
OR LESS AND SEAS OF 7 FEET OR LESS TODAY. A SMALL CRAFT ADVISORY
REMAINS IN EFFECT FOR THE OFFSHORE ATLANTIC WATERS.

$$