Flash Flood Warning 12, NWS JSJ

Issued

May 16, 2011, 10:18 PM CDT (03:18 UTC)

Expired

May 17, 2011, 1:15 AM CDT

In force

3 hr

Issued by

NWS JSJ

Area

Storm-based polygon

Flood severity

None

The San Juan radar (TJUA), 11 km from the middle of the area, began a volume at 03:20 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.

515 
WGCA52 TJSJ 170318
FFWSJU
PRC109-170615-
/O.NEW.TJSJ.FF.W.0012.110517T0318Z-110517T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1118 PM AST MON MAY 16 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITY

  IN PUERTO RICO
     PATILLAS

* UNTIL 215 AM AST

* AT 1110 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED 
TO INDICATE SCATTERED SHOWERS...SOME WITH VERY HEAVY RAIN AFFECTING 
THIS MUNICIPALITY. ALSO...U.S.G.S. RIVER SENSORS INDICATED THAT THE 
LEVELS OF RIO MARIN IN PATILLAS WERE RISING RAPIDLY AND WILL GO PAST 
FLOOD STAGE WITHING THE NEXT 15 MINUTES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

&&

LAT...LON 1806 6606 1808 6602 1798 6593 1798 6602

$$

ER

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

902 
WGCA72 TJSJ 170613
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
213 AM AST TUE MAY 17 2011

PRC109-170619-
/O.EXP.TJSJ.FF.W.0012.000000T0000Z-110517T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PATILLAS PR-
213 AM AST TUE MAY 17 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 215 AM AST FOR PATILLAS
MUNICIPALITY...

THE U.S.G.S RIVER SENSOR AT RIO MARIN IN PATILLAS SHOWED THAT THE 
RIVER HAD RECEDED UNDER FLOOD LEVELS. IN ADDITION...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.

HOWEVER...RESIDENTS AND MOTORISTS ACROSS THESE AREAS SHOULD BE ALERT 
TO PONDING OF WATER ON ROADWAYS AND ALLOW TIME FOR STREAMS...CREEKS 
AND RIVERS TO RETURN TO NORMAL LEVELS.

LAT...LON 1806 6606 1808 6602 1798 6593 1798 6602

$$

ER

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

Flash Flood Warnings in Puerto Rico, 2011Every flash flood warning in 2011

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.