Alert archive / Puerto Rico / Flash Flood Warnings in 2003

Flash Flood Warning 30, NWS JSJ

April 21, 2003

NWS JSJ issued this flash flood warning at Apr 21, 2003, 1:17 PM CDT. It was in force for 19 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 21, 2003, 1:17 PM CDT (18:17 UTC)
Expired: Apr 22, 2003, 8:15 AM CDT
In force: 19 hr
Issued by: NWS JSJ
Area: Whole counties

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGCA52 TJSJ 211821
FFWSJU
PRC029-031-139-212115-

BULLETIN-EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
217 PM AST MON APR 21 2003

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED

* A FLASH FLOOD WARNING FOR THE FOLLOWING MUNICIPALITIES
  IN PUERTO RICO
     CANOVANAS
     CAROLINA
     TRUJILLO ALTO

* INCLUDING ALL LOCAL RIVER SYSTEMS AND THEIR TRIBUTARIES

* UNTIL 515 PM AST

* AT 210 PM AST...WEATHER SERVICE DOPPLER RADAR INDICATED A          
  CLUSTER OF THUNDERSTORMS WITH HEAVY RAIN EXITING TRUJILLO ALTO AND 
  MOVING OVER SOUTH AND CENTRAL CAROLINA...AND TOWARDS CANOVANAS.    
  THIS WEATHER WAS MOVING NORTHEAST AT 5 MPH. LOCAL RIVER AND        
  STREAM SYSTEMS ARE RESPONDING BY RISING RAPIDLY...AND MAY FLOW OUT 
  OF THEIR BANKS IN THE NEXT 30 MINUTES.

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR HAS
BEEN REPORTED. EVACUATE TO HIGHER GROUND AND TAKE THE NECESSARY
PRECAUTIONS SHOULD FLOOD WATERS AFFECT YOUR AREA. MOTORISTS AND
PEDESTRIANS SHOULD NOT ATTEMPT TO CROSS FLOODED ROADS AND AREAS...AS
YOU AND YOUR VEHICLE MIGHT BE SWEPT AWAY BY FLOOD WATERS. PERSONS IN
LOW LYING AREAS SHOULD SEEK HIGHER GROUND. FOLLOW INSTRUCTIONS FROM
LOCAL CIVIL DEFENSE OR LAW OFFICIALS.

$$

1 follow-up statement

000 
WGCA72 TJSJ 212125
FFSSJU
PRC029-031-139-212230-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
524 PM AST MON APR 21 2003

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT UNTIL 515 PM FOR THE   
   MUNICIPALITIES OF CANOVANAS...CAROLINA AND TRUJILLO ALTO HAS      
   EXPIRED...

AT 517 PM...DOPPLER WEATHER RADAR INDICATED THAT THE SHOWERS AND 
THUNDERSTORMS WITH HEAVY RAIN THAT WERE AFFECTING THESE 
MUNICIPALITIES EARLIER THIS AFTERNOON HAD DIMINISHED IN INTENSITY. 
IN ADDITION...USGS RIVER GAUGES INDICATED THAT RIVER LEVELS IN THE 
FORMER WARNING AREA WERE FALLING. ALTHOUGH SCATTERED SHOWERS WITH 
LIGHT RAIN CONTINUED ACROSS THESE AREAS...THE IMMEDIATE THREAT FOR 
ANY ADDITIONAL HEAVY RAINFALL OR FLASH FLOODING HAS DIMINISHED. 
THEREFORE...THE FLASH FLOOD WARNING WAS ALLOWED TO EXPIRE. 

HOWEVER...THESE MUNICIPALITIES REMAIN IN A FLASH FLOOD WATCH UNTIL 
800 PM. RESIDENTS SHOULD CONTINUE TO MONITOR THE WEATHER CLOSELY 
THROUGH TONIGHT AND REMAIN ALERT TO THE POSSIBILITY OF ADDITIONAL 
HEAVY RAINFALL AND POTENTIAL FLOODING AS THE EVENING CONTINUES.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TV OR RADIO FOR THE LATEST 
WEATHER INFORMATION.

$$

SEELEY

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 21, 4:31 PM CDT	Flash Flood Warning	JSJ		18 hr

Nearby

Flash Flood Warnings in Puerto Rico, 2003 Every flash flood warning in 2003

Sources

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