Flash Flood Warning 22, NWS JSJ

914 
WGCA72 TJSJ 080231
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
1031 PM AST FRI MAY 7 2010

PRC051-091-143-145-080240-
/O.CAN.TJSJ.FF.W.0022.000000T0000Z-100508T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VEGA ALTA PR-DORADO PR-MANATI PR-VEGA BAJA PR-
1031 PM AST FRI MAY 7 2010

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR VEGA BAJA...
MANATI...DORADO AND VEGA ALTA MUNICIPALITIES...

DOPPLER RADAR INDICATED THAT THE HEAVY RAIN WHICH AFFECTED THIS AREA
HAD DISSIPATED OR MOVED AWAY. NO SIGNIFICANT ADDITIONAL RAINFALL IS 
EXPECTED ACROSS THESE AREAS AT THIS TIME. EMERGENCY MANAGERS 
REPORTED THAT FLOOD WATERS HAVE RECEDED ACROSS THE PREVIOUSLY 
AFFECTED AREAS.

LAT...LON 1837 6651 1851 6650 1844 6628 1839 6629

$$

ROSA

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

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
301 PM AST FRI MAY 7 2010

.SYNOPSIS...A LOW LEVEL DISTURBANCE AND ITS ASSOCIATED MOISTURE
LOCATED OVER THE EASTERN PORTION OF PUERTO RICO CONTINUES TO MOVE
NORTHWEST AWAY FROM THE LOCAL AREA TONIGHT THROUGH SATURDAY. IN
ADDITION...A MID LEVEL RIDGE WILL LINGER ACROSS THE LOCAL AREA
THROUGH EARLY SATURDAY...WITH A MID LEVEL TROUGH THEN APPROACHING
THE LOCAL REGION FROM THE NORTHWEST LATER SATURDAY THROUGH SUNDAY.

&&

.DISCUSSION...A LOW LEVEL DISTURBANCE LOCATED OVER THE EASTERN
PORTION OF PUERTO RICO WILL MOVE NORTHWEST AWAY FROM THE LOCAL AREA
TONIGHT THROUGH SATURDAY AS DEPICTED BY THE NAM 07/12Z RUN. AT
THIS TIME...THE ACTIVE WEATHER HAS REMAINED OVER THE REGIONAL
WATERS AND IS MAINLY CONCENTRATED IN AMZ715 AND AMZ725 EAST OF
SAINT JOHN. THE DISTURBANCE HAS TAKEN THE FORM OF AN INVERTED U
WITH ONE LEG CURRENTLY OVER EASTERN PUERTO RICO AND THE EASTERN
LEG WHERE THE ACTIVE WEATHER WAS DESCRIBED. THE AXIS OF THE
DISTURBANCE AND ITS ASSOCIATED MOISTURE WILL SPREAD CLOUDINESS AND
SCATTERED SHOWERS WESTWARD DURING THE NEXT 24 HOURS. CURRENT
MODELS SHOW ACTIVITY GROWING LATER THIS AFTERNOON AND CONTINUING
LATER THAN USUAL INTO THE NIGHT. THE GFS HAS NOT CAPTURED THE MESO
SCALE STRUCTURE OF THE DISTURBANCE LIKE THE NAM HAS AND THEREFORE
IS SPREADING TOO MUCH MOISTURE OVER A WIDE AREA.

MOISTURE WILL LINGER ACROSS THE LOCAL AREA SATURDAY THROUGH EARLY
SUNDAY AND SHOULD COMBINE WITH AN APPROACHING MID
LEVEL TROUGH AND CONVERGENCE OVER WESTERN PUERTO RICO TO PRODUCE
ADDITIONAL CLOUDINESS...AND AFTERNOON SHOWERS WITH ISOLATED
THUNDERSTORMS SATURDAY.

LOOKING AHEAD...TROUGHINESS WILL TEND TO LIFT AND WEAK RIDGING WILL
TAKE PLACE EARLY NEXT WEEK...BUT THE AVAILABLE MOISTURE WILL COMBINE
WITH LOCAL EFFECTS...TO PRODUCE SOME DIURNALLY INDUCED CLOUDINESS
AND SHOWERS EACH AFTERNOON.

&&

.AVIATION...
THE INFLUENCE OF A LOW LEVEL DISTURBANCE WILL PRODUCE INTERMITTENT
MVFR CONDITIONS AND MOUNTAIN OBSCURATIONS...WHEN THE SHRA PASS
BY. THESE CONDS WILL PERSIST ACROSS THE REGION THE REST OF TODAY
ACROSS MOST OF THE TAF SITES. WINDS WILL BE MAINLY FROM THE EAST
SOUTHEAST AT 10 TO 15 MPH WITH HIGHER GUSTS.

&&

.MARINE...TRANQUIL MARINE CONDITIONS ARE EXPECTED TO PREVAIL THROUGH
SUNDAY. LOCALLY ACTIVE WEATHER WILL OCCUR OVER PARTS OF THE REGIONAL
WATERS TONIGHT. WINDS AND SEAS ARE EXPECTED TO INCREASE ON LATE
TUESDAY THROUGH WEDNESDAY AND SMALL CRAFT ADVISORIES ARE
ANTICIPATED IN THE ATLANTIC BEGINNING WEDNESDAY AND SPREADING INTO
THE CARIBBEAN WEDNESDAY AFTERNOON AND THURSDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  76  89  77  90 /  30  30  20  20
STT  79  87  79  87 /  50  50  20  20

&&

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

11/23/12

HAZARDOUS WEATHER OUTLOOK FOR PUERTO RICO AND THE U.S. VIRGIN
ISLANDS
NATIONAL WEATHER SERVICE SAN JUAN PR
407 AM AST FRI MAY 7 2010

AMZ710>745-PRZ001>013-081000-
SAN JUAN AND VICINITY-NORTHEAST-SOUTHEAST-EASTERN INTERIOR-
NORTH CENTRAL-CENTRAL INTERIOR-PONCE AND VICINITY-NORTHWEST-
WESTERN INTERIOR-MAYAGUEZ AND VICINITY-SOUTHWEST-CULEBRA-VIEQUES-
THE NEARSHORE AND OFF SHORE ATLANTIC AND CARIBBEAN COASTAL WATERS-
407 AM AST FRI MAY 7 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PUERTO RICO AND THE
ADJACENT COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT

A PASSING LOW LEVEL DISTURBANCE WILL ENHANCE SHOWER ACTIVITY
ACROSS PUERTO RICO TODAY. AREAS OF MODERATE TO HEAVY RAINFALL CAN
BE EXPECTED TO DEVELOP ACROSS EASTERN PUERTO RICO LATE THIS
MORNING...SPREADING WESTWARD THROUGH THE AFTERNOON HOURS. REDUCED
VISIBILITIES...ALONG WITH URBAN AND SMALL STREAM FLOODING...CAN BE
EXPECTED WITH THE HEAVIEST SHOWERS AND THUNDERSTORMS TODAY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

AMZ715-725-VIZ001-002-081000-
ST. THOMAS ST. JOHN ADJACENT ISLANDS-ST CROIX-
NEARSHORE ATLANTIC AND ADJACENT CARIBBEAN COASTAL WATERS-
407 AM AST FRI MAY 7 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE U.S. VIRGIN ISLANDS AND
THE ADJACENT COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT

NUMEROUS SHOWERS...ISOLATED THUNDERSTORMS...TEMPORARILY REDUCED
VISIBILITIES AND PONDING OF WATER ON ROADWAYS AND IN LOW LYING
AREAS...CAN BE EXPECTED WITH A PASSING LOW LEVEL DISTURBANCE THROUGH
THE LATE MORNING HOURS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

SR