Alert archive / Puerto Rico / Flash Flood Warnings in 2003

Flash Flood Warning 48, NWS JSJ

August 21, 2003

NWS JSJ issued this flash flood warning at Aug 21, 2003, 11:29 AM CDT. It was in force for 18 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: Aug 21, 2003, 11:29 AM CDT (16:29 UTC)
Expired: Aug 22, 2003, 5:00 AM CDT
In force: 18 hr
Issued by: NWS JSJ
Area: Whole counties

The text

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

000 
WGCA52 TJSJ 211718
FFWSJU
PRC021-061-127-135-139-211800-

BULLETIN-EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1229 PM AST THU AUG 21 2003

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED

* A FLASH FLOOD WARNING FOR THE FOLLOWING MUNICIPALITIES
  IN PUERTO RICO
     SAN JUAN
     TOA ALTA
     TRUJILLO ALTO
     BAYAMON
     GUAYNABO

* UNTIL 200 PM AST

* AT 1228 PM AST...WEATHER SERVICE DOPPLER RADAR INDICATED   
THUNDERSTORMS WITH VERY HEAVY RAIN FALLING IN A LINE FROM TOA ALTA 
EASTWARD TO TRUJILLO ALTO. RADAR INDICATED RAINFALL RATES OF TWO AND 
A HALF INCHES PER HOUR IN THIS BAND. ADDITIONAL RAINFALL OF 2 TO 3 
INCHES IS EXPECTED.

  THIS WARNING INCLUDES ALL RIVERS...STREAMS AND TRIBUTARIES WITHIN
  THE WARNING AREA.

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.

$$

DG

2 follow-up statements

000 
WGCA72 TJSJ 211711
FFSSJU
PRC021-061-127-135-139-211800-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
106 PM AST THU AUG 21 2003

A FLASH FLOOD WARNING CONTINUES IN EFFECT FOR THE FOLLOWING 
MUNICIPALITIES

IN PUERTO RICO
     SAN JUAN...TOA ALTA...TRUJILLO ALTO...BAYAMON AND GUAYNABO

...UNTIL 200 PM...

AT 105 PM...DOPPLER RADAR CONTINUES TO INDICATE HEAVY RAIN FALLING 
OVER THESE AREAS. THE HEAVIEST RAIN IS AFFECTING TOA ALTA AND 
BAYAMON. RIVERS ACROSS THE AREA CONTINUE TO RISE EXTREMELY RAPIDLY. 
THE RIO PIEDRAS RIVER HAS GONE ABOVE FLOOD STAGE. ITS STAGE ROSE 
FROM 7.7 FEET AT 1230 PM ALL THE WAY TO 12.23 FEET AS OF 1245 PM. A 
RISE OF ALMOST 5 FEET IN ONLY 15 MINUTES. THIS IS A DANGEROUS 
FLOODING SITUATION  

REMEMBER...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.

$$

DG

000 
WGCA72 TJSJ 211804
FFSSJU
PRC021-061-127-135-139-211900-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
200 PM AST THU AUG 21 2003

THE FLASH FLOOD WARNING ISSUED EARLIER BY THE NATIONAL WEATHER
SERVICE IN SAN JUAN HAS BEEN DISCONTINUED FOR THE FOLLOWING
MUNICIPALITIES

IN PUERTO RICO...

     SAN JUAN...TOA ALTA...TRUJILLO ALTO...BAYAMON AND GUAYNABO

AT 153 PM...DOPPLER RADAR INDICATED THAT THE HEAVY RAINFALL WHICH 
AFFECTED THESE AREAS EARLIER HAS MOVED AWAY FROM THE AREA. 
HOWEVER...ADDITIONAL THUNDERSTORMS HAVE DEVELOPED FURTHER EAST...AND 
THESE MAY MOVE INTO PARTS OF THE SAN JUAN AREA AGAIN LATER THIS 
AFTERNOON...POSING AN ADDITIONAL FLASH FLOOD RISK. ANOTHER FLASH 
FLOOD WARNING MAY NEED TO BE ISSUED LATER THIS AFTERNOON...SHOULD 
HEAVY RAINFALL REGENERATE ACROSS THESE SAME AREAS THAT HAVE ALREADY 
RECEIVED SO MUCH RAINFALL. 

PEOPLE SHOULD CONTINUE TO REMAIN ALERT FOR LINGERING WATER ON THE 
ROADWAYS AND HIGH STREAM OR RIVER LEVELS. RIVER LEVELS ARE NOW BELOW 
FLOOD STAGE...BUT CONTINUE HIGH ACROSS THE AREA.

$$

DG

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.