Alert archive / Puerto Rico / Flash Flood Warnings in 2007

Flash Flood Warning 53, NWS JSJ

August 25, 2007

NWS JSJ issued this flash flood warning at Aug 25, 2007, 5:53 PM CDT. It took effect at Aug 25, 2007, 6:02 PM CDT. It was in force for 109 days. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 25, 2007, 5:53 PM CDT (22:53 UTC)
In effect from: Aug 25, 2007, 6:02 PM CDT
Expired: Dec 12, 2007, 9:00 AM CST
In force: 109 days
Issued by: NWS JSJ
Area: Counties, with a storm outline in the text
Flood severity: None

The radar

The San Juan radar (TJUA), 47 km from the middle of the area, began a volume at 22:53 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.

The text

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

000 
WGCA52 TJSJ 252302 CCA
FFWSJU
PRC011-083-097-260000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
653 PM AST SAT AUG 25 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     LAS MARIAS
     MAYAGUEZ
     ANASCO

* UNTIL 800 PM AST

* AT 650 PM AST...A U.S.G.S. RIVER GAGE INDICATED THAT RIO GRANDE DE 
ANASCO IN THE MUNICIPALITY OF ANASCO HAD RISEN ABOVE FLOOD 
STAGE...AND WAS CONTINUING TO RISE. WITH ADDITIONAL LIGHT RAINFALL 
EXPECTED TO CONTINUE ACROSS THIS AREA FOR THE NEXT HOUR OR SO...A 
FLASH FLOOD WARNING HAS BEEN ISSUED FOR RESIDENTS AND MOTORISTS 
ALONG THE RIO GRANDE DE ANASCO IN ANASCO UTUADO UNTIL 800 PM AST. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ANASCO

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.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

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 1829 6705 1819 6701 1821 6716 1831 6720

$$

FIGUEROA

4 follow-up statements

000 
WGCA52 TJSJ 111142
FFWSJU
PRC143-145-111730-
/O.NEW.TJSJ.FF.W.0053.071211T1130Z-071211T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
730 AM AST TUE DEC 11 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS REISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     VEGA ALTA
     VEGA BAJA

* UNTIL 100 PM AST

* AT 705 AM AST...THE USGS RIVER SENSOR INDICATED THAT RIO CIBUCO AT 
VEGA BAJA CONTINUES OVER A FOOT OF ITS FLOOD STAGE. AT THIS 
TIME...DOPPLER RARAR INDICATES THAT MORE SHOWER ACTIVITY WILL BE 
MOVING ACROSS THAT AREA WITHIN THIS HOUR. SOME OF THESE SHOWERS ARE 
MODERATE TO HEAVY AND CAN HELP THE RIVER WATER LEVELS TO COME UP IN 
THE NEXT FEW HOURS. THEREFORE...OPTED TO EXTEND THE WARNING FOR RIO 
CIBUCO UNTIL 100 PM AST THIS AFTERNOON.

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.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

LAT...LON 1850 6642 1849 6635 1840 6632 1837 6634
      1836 6638
TIME...MOT...LOC 1130Z 180DEG 0KT 1839 6634

$$

OB

000 
WGCA52 TJSJ 120248
FFWSJU
PRC143-145-120900-
/O.EXT.TJSJ.FF.W.0053.000000T0000Z-071212T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1041 PM AST TUE DEC 11 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     VEGA ALTA
     VEGA BAJA

* UNTIL 500 AM AST WEDNESDAY

* AT 1036 PM AST...A U.S.G.S. RIVER GAGE ALONG THE RIO CIBUCO
  INDICATED THAT THE RIVER REMAINS ABOVE FLOOD STAGE AT THIS TIME.
  IN ADDITION...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAINFALL APPROACHING THE RIVER FROM THE SOUTH AND EAST
  WHICH WILL CONTINUE TO ENHANCE FLASH FLOODING IN THIS REGION.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VEGA
  BAJA...VEGA ALTA AND MONSERRATE

EXCESSIVE RUNOFF FROM THIS HEAVY RAINFALL WILL CAUSE ADDITIONAL 
FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. 
ADDITIONALLY...ROADS AND LANDS ALONG THE BANKS OF CREEKS...STREAMS 
AND OTHER LOW LYING AREAS THAT ARE NORMALLY SUBJECT TO FLOODING.

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 1850 6642 1849 6635 1840 6632 1837 6634
      1836 6638
TIME...MOT...LOC 0241Z 180DEG 0KT 1839 6634

$$

JPC

000 
WGCA52 TJSJ 120837
FFWSJU
PRC143-145-121500-
/O.EXT.TJSJ.FF.W.0053.000000T0000Z-071212T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
432 AM AST WED DEC 12 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     VEGA ALTA
     VEGA BAJA

* UNTIL 1100 AM AST

* AT 430 AM AST...A U.S.G.S. RIVER GAGE ALONG THE RIO CIBUCO         
  INDICATED THAT THE RIVER REMAINS ABOVE FLOOD STAGE AT THIS TIME    
  AND WAS CONTINUING TO SLOWLY RISE. FOR THIS REASON...THE FLASH     
  FLOOD WARNING FOR THE RIO CIBUCO AND ITS TRIBUTARIES HAS BEEN      
  EXTENDED UNTIL 1100 AM AST...WEDNESDAY MORNING.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VEGA
  BAJA...VEGA ALTA AND MONSERRATE

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

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 1850 6642 1849 6635 1840 6632 1837 6634
      1836 6638
TIME...MOT...LOC 0832Z 180DEG 0KT 1839 6634

$$

FIGUEROA

000 
WGCA52 TJSJ 121454
FFWSJU
PRC143-145-122100-
/O.EXT.TJSJ.FF.W.0053.000000T0000Z-071212T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1051 AM AST WED DEC 12 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     VEGA ALTA
     VEGA BAJA

* UNTIL 500 PM AST WEDNESDAY

* AT 1048 AM AST...THE RIO CIBUCO REMAINS ABOVE FLOOD STAGE DUE TO 
RECENT HEAVY RAINS. ANY ADDITIONAL RAINS THIS AFTERNOON WILL CAUSE 
RAPID RISES IN RIVER LEVELS.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VEGA
  BAJA...VEGA ALTA AND MONSERRATE

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.

LAT...LON 1850 6642 1849 6635 1840 6632 1837 6634
      1836 6638
TIME...MOT...LOC 1451Z 180DEG 0KT 1839 6634

$$

AAS

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Aug 25, 3:00 PM CDT	Flash Flood Warning	JSJ	108 days
Aug 25, 3:33 PM CDT	Flash Flood Warning	JSJ	108 days
Aug 25, 5:53 PM CDT	Flash Flood Warning	JSJ	108 days

Nearby

Flash Flood Warnings in Puerto Rico, 2007 Every flash flood warning in 2007

Sources

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.