Alert archive / Puerto Rico / Flash Flood Warnings in 2007

Flash Flood Warning 49, NWS JSJ

August 23, 2007

NWS JSJ issued this flash flood warning at Aug 23, 2007, 2:06 PM CDT. It was in force for 110 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 23, 2007, 2:06 PM CDT (19:06 UTC)
Expired: Dec 11, 2007, 5:30 AM CST
In force: 110 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 19:05 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 231910
FFWSJU
PRC059-232100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
306 PM AST THU AUG 23 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITY

  IN PUERTO RICO
     GUAYANILLA

* UNTIL 500 PM AST

* AT 306 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR AND RIVER 
GAGES INDICATED FLASH FLOODING FROM HEAVY RAIN OVER THE RIO 
GUAYANILLA BASIN. AT 3:05 RIVER GAGES ON THE RIO GUAYANILLA SHOWED 
THE RIVER LESS THAN ONE FOOT FROM FLOOD STAGE AND RAPIDLY RISING. 
PERSONS ON OR ALONG THIS RIVER SHOULD MOVE TO HIGHER GROUND RIGHT 
NOW.

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 1801 6677 1807 6676 1804 6676 1801 6674
      1799 6676 1799 6679

$$

RA

1 follow-up statement

000 
WGCA52 TJSJ 110536
FFWSJU
PRC143-145-111130-
/O.NEW.TJSJ.FF.W.0049.071211T0524Z-071211T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     VEGA ALTA
     VEGA BAJA

* UNTIL 730 AM AST

* AT 130 AM AST...EMERGENCY MANAGEMENT PERSONAL REPORTED RAPID RIVER 
RISING LEVELS NEAR ROAD 620 AND 647 ALONG THE CIBUCO RIVER. 
ALSO...BOTH USGS GAGES AND RADAR ESTIMATED RADAR ACCUMULATIONS 
DURING THE PAST THREE HOURS...INDICATED THAT BETWEEN 2 TO 3 INCHES 
OF RAINFALL HAS FALLEN OVER THIS PARTICULAR AREA. 

ADDITIONAL RAINFALL AMOUNTS OF TWO TO THREE INCHES AREA POSSIBLE 
ALONG OR NEARBY CIBUCO RIVER DURING THE WARNING TIME PERIOD.

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.

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 0524Z 180DEG 0KT 1839 6634

$$

OB

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.