Flash Flood Warning 69, NWS JSJ

000 
WGCA72 TJSJ 190424
FFSSJU

URGENT - IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
1222 AM AST SAT AUG 19 2006

PRC003-005-190422-
AGUADILLA-AGUADA-
1222 AM AST SAT AUG 19 2006

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR THE FOLLOWING
MUNICIPALITIES...
IN PUERTO RICO
     AGUADILLA AND AGUADA

AT 1215 AM AST...THE NWS DOPPLER WEATHER RADAR INDICATED THAT THE 
SHOWERS AND THUNDERSTORMS THAT WERE AFFECTING THE FORMER WARNING 
AREA...EARLIER FRIDAY EVENING...HAD DISSIPATED OR MOVED OFF. AT THIS 
TIME THERE ARE NO SHOWERS IN THAT AREA BUT THE RIVER LEVELS ARE 
STILL HIGHS. NO ADDITIONAL PERSISTENT HEAVY RAINFALL OR NEW FLASH 
FLOODING IS EXPECTED AND THEREFORE...THE FLASH FLOOD WARNING WAS 
ALLOWED TO EXPIRE. RESIDENTS AND MOTORISTS ACROSS THESE AREAS SHOULD 
HOWEVER BE ALERT TO PONDING OF WATER ON ROADWAYS AND ALLOW TIME FOR 
RIVERS AND STREAMS TO RETURN TO NORMAL LEVELS. 

ALTHOUGH THE FLASH FLOOD RISK HAS DECREASED...A FLOOD WARNING ARE IN 
EFFECT FOR ALL OF THESE MUNICIPALITIES THROUGH 645 AM AST SATURDAY 
MORNING. 

LAT...LON 1844 6718 1843 6712 1838 6716 1840 6720

$$

JFR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
207 PM AST FRI AUG 18 2006

.DISCUSSION...THE SPINNING OF A TUTT NORTHEAST OF PUERTO RICO WAS
CLEARLY DEPICTED IN SATELLITE IMAGERY...MOVING NORTHWEST. SPEED
DIVERGENCE WAS ALSO NOTED IN THE 200MB STREAMLINES/WIND ANALYSIS.
AT THE LOW LEVELS...WINDS WERE VERY LIGHT FROM SURFACE TO AROUND
300MB. THIS ALLOWED A GOOD SEA BREEZE DEVELOPMENT WHICH COMBINED
WITH THE LOCAL HEATING AND MOUNTAINS EFFECTS TO PRODUCE HEAVY
RAINFALL IN SOME SECTORS. OF PUERTO RICO. THE SLOW MOVEMENT OF THE
SHOWERS ALLOWED THEM TO PRODUCE RAINFALL AMOUNTS EXCEEDING THREE
INCHES IN SOME LOCALITIES AND CONSEQUENT URBAN FLOODING. A SIMILAR
WEATHER PATTERN IS EXPECTED TOMORROW WITH THE CONTINUATION OF THE
LIGHT WINDS AND SEA BREEZE EFFECTS AGAIN.

INCREASED TEMPERATURES FOR THE NORTHERN SECTIONS OF PUERTO RICO
SATURDAY AND SUNDAY DUE TO A MORE SOUTHEAST WIND FLOW EXPECTED
IN RESPONSE TO A LOW PRESSURE SYSTEM OFF THE FLORIDA COAST.

&&

.SYNOPSIS...SURFACE HIGH PRESSURE LOCATED OVER THE NORTHWEST
ATLANTIC EARLY THIS AFTERNOON WILL MOVE SLOWLY NORTHEAST BEFORE
GRADUALLY MERGING WITH A HIGH PRESSURE SYSTEM OVER THE CENTRAL
ATLANTIC BY MONDAY. A GENTLE TO MODERATE TRADE WIND FLOW WILL
PREVAIL ACROSS THE REGIONAL WATERS THROUGH SATURDAY...THEN
MODERATE TO FRESH SATURDAY NIGHT THROUGH AT LEAST TUESDAY.

&&

.MARINE...LIGHT WINDS ARE EXPECTED UNTIL SATURDAY NEXT INCREASING
IN STRENGTH BY EARLY NEXT WEEK.

&&

.AVIATION...SLOW MOVING SCATTERED TO NUMEROUS SHOWERS AND ISOLATED
THUNDERSTORMS WILL OCCUR AT OR NEAR SOME OF THE AIRPORTS IN PUERTO
RICO STARTING IN THE EARLY AFTERNOON AND DISSIPATING AROUND
SUNSET.

&&

.HYDROLOGY...THE VERY HEAVY PRECIPITATION OF PAST FEW DAYS IS
RESULTING IN SMALLER VALUES OF RAINFALL TO PRODUCE SOME KIND OF
FLOODING ESPECIALLY URBAN FLOODING THE REST OF THE AFTERNOON AND
SATURDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  78  89  78  88 /  30  20  20  50
STT  78  87  78  86 /  30  20  40  40

&&

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

11

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN JUAN PR
625 AM AST FRI AUG 18 2006

PRZ001>013-AMZ710>750-191000-
625 AM AST FRI AUG 18 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PUERTO RICO.

.TODAY AND TONIGHT...
DAYTIME HEATING AND LOCAL TERRAIN EFFECT WILL COMBINE WITH THE
AVAILABLE MOISTURE TO PRODUCE AFTERNOON SHOWERS AND ISOLATED
THUNDERSTORMS...MAINLY ACROSS THE WESTERN...INTERIOR AND NORTHERN
SECTIONS OF PUERTO RICO. SOME OF THE STORMS WILL PRODUCE LOCALLY
HEAVY RAINFALL WHICH MAY CAUSE URBAN AND SMALL STREAM FLOODING
ESPECIALLY IN LOW LYING AND POOR DRAINAGE AREAS.

.DAYS TWO THROUGH SEVEN...
AFTERNOON SHOWERS AND THUNDERSTORMS WILL FORM...MOSTLY ACROSS THE
INTERIOR AND MOVE WEST MAINLY OVER THE SURROUNDING MUNICIPALITIES OF
WESTERN PUERTO RICO. SOME OF THE SHOWERS MAY PRODUCE LOCALLY HEAVY
RAINFALL WHICH WILL CAUSE MINOR FLOODING OF STREETS AND SMALL
STREAMS INTO THE WEEKEND.

.SPOTTER CALL TO ACTION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

VIZ001-002-AMZ710>730-191000-
625 AM AST FRI AUG 18 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE U.S. VIRGIN ISLANDS.

.TODAY AND TONIGHT...
SCATTERED SHOWERS WILL CONTINUE OVER THE U.S. VIRGIN ISLAND AND
ADJACENT COASTAL WATERS FROM TIME TO TIME DURING THE NIGHT AND EARLY
MORNING HOURS BUT NO SIGNIFICANT RAINFALL AMOUNTS ARE EXPECTED.

.DAYS TWO THROUGH SEVEN...
ONLY THE TYPICAL SHOWERS DURING THE NIGHT AND EARLY MORNING HOURS
ARE EXPECTED ACROSS THE U.S. VIRGIN ISLANDS. NO HAZARDOUS WEATHER IS
EXPECTED.

.SPOTTER CALL TO ACTION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE WEB
SITE FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS AT (ALL LOWERCASE
LETTERS): HTTP://WWW.SRH.NOAA.GOV/SJU.

FROM YOUR PDA/PHONE: HTTP://MOBILE.SRH.NOAA.GOV OR
WWW.SRH.NOAA.GOV/WML

JFR