Flash Flood Warning 49, NWS JSJ

Issued

Oct 5, 2009, 5:12 PM CDT (22:12 UTC)

Expired

Oct 5, 2009, 7:45 PM CDT

In force

3 hr

Issued by

NWS JSJ

Area

Storm-based polygon

Flood severity

None

The San Juan radar (TJUA), 101 km from the middle of the area, began a volume at 22:12 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

000 
WGCA52 TJSJ 052212
FFWSJU
PRC071-115-060045-
/O.NEW.TJSJ.FF.W.0049.091005T2212Z-091006T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
612 PM AST MON OCT 5 2009

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     ISABELA
     QUEBRADILLAS

* UNTIL 845 PM AST

* AT 609 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
NEARLY STATIONARY BAND OF SHOWERS AND THUNDERSTORMS WITH VERY HEAVY 
RAINFALL AFFECTING THESE MUNICIPALITIES. U.S.G.S. GAGES AND RADAR 
ESTIMATES INDICATE THAT 2 TO 3 INCHES OF RAIN HAVE ALREADY FALLEN 
OVER THESE AREAS AND IT CONTINUED TO RAIN HEAVILY. ADDITIONAL 
RAINFALL OF 1 TO 2 INCHES IS EXPECTED THROUGH 845 PM AND THIS WILL 
RESULT IN FLASH AND RIVER FLOODING WITHIN THE WARNING AREA. ALSO...
MUDSLIDES ARE LIKELY OVER AREAS OF STEEP TERRAIN.

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 1848 6691 1845 6690 1843 6704 1851 6705

$$

BCS

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

000 
WGCA72 TJSJ 060052
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
852 PM AST MON OCT 5 2009

PRC071-115-060110-
/O.EXP.TJSJ.FF.W.0049.000000T0000Z-091006T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ISABELA PR-QUEBRADILLAS PR-
852 PM AST MON OCT 5 2009

...THE FLASH FLOOD WARNING HAS EXPIRED FOR QUEBRADILLAS AND ISABELA
MUNICIPALITIES...

AT 847 PM AST...DOPPLER WEATHER RADAR INDICATED THAT THE SHOWERS AND 
THUNDERSTORMS WITH VERY HEAVY RAINFALL THAT WERE AFFECTING THESE 
MUNICIPALITIES EARLIER HAD ENDED...AND NO ADDITIONAL HEAVY RAINFALL 
OR NEW FLOODING IS EXPECTED. THEREFORE...THE FLASH FLOOD WARNING WAS 
ALLOWED TO EXPIRE.

HOWEVER...RESIDENTS AND MOTORISTS SHOULD REMAIN ALERT FOR...AND STAY 
AWAY FROM...ANY LEFTOVER FLOODED AREAS UNTIL WATERS RECEDE.

LAT...LON 1848 6691 1845 6690 1843 6704 1851 6705

$$

BCS

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

Flash Flood Warnings in Puerto Rico, 2009Every flash flood warning in 2009

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.