Alert archive / Puerto Rico / Flash Flood Warnings in 2007

Flash Flood Warning 37, NWS JSJ

May 6, 2007

NWS JSJ issued this flash flood warning at May 6, 2007, 6:06 PM CDT. It was in force for 175 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: May 6, 2007, 6:06 PM CDT (23:06 UTC)
Expired: Oct 28, 2007, 2:15 PM CDT
In force: 175 days
Issued by: NWS JSJ
Area: Counties, with a storm outline in the text
Flood severity: None

The radar

The San Juan radar (TJUA), 84 km from the middle of the area, began a volume at 23:06 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 062310
FFWSJU
PRC051-143-145-070100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
706 PM AST SUN MAY 6 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING CONTINUES FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     VEGA ALTA
     DORADO
     VEGA BAJA

* UNTIL 9:00 PM AST

* AT 7 PM AST...THE USGS RIVER LEVEL SENSOR ALONG RIO CIBUCO IN VEGA 
  BAJA A FEW MILES FROM THE COAST SHOWED THAT THE RIVER CONTINUED TO 
  RISE. LOCAL EMERGENCY MANAGEMENT OFFICIALS HAD REPORTED EARLIER    
  THAT THE RIVER WAS OUT OF ITS BANKS AND FLOODING HIGHWAY 620.      
  CONDITIONS HAVE NOT LIKELY IMPROVED...AND THE WARNING WILL BE      
  EXTENDED THROUGH 9 PM. 

RIVER FLOODING IS OCCURRING. 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.

LAT...LON 1838 6640 1838 6633 1850 6631 1850 6640

$$

2 follow-up statements

000 
WGCA52 TJSJ 281723
FFWSJU
PRC049-281915-
/O.NEW.TJSJ.FF.W.0037.071028T1719Z-071028T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
119 PM AST SUN OCT 28 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITY

  IN PUERTO RICO
     CULEBRA

* UNTIL 315 PM AST

* AT 113 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR     
INDICATED AREAS OF MODERATE TO HEAVY RAIN AFFECTING THE ISLAND OF 
CULEBRA. ADDITIONAL RAINFALL OF 1 TO 3 INCHES WILL OCCUR AND THIS 
WILL RESULT IN FLASH FLOODING OF LOW LYING AREAS...ROADS... RIVERS 
AND STREAMS...AND WILL FURTHER AGGRAVATE ONGOING FLOODING. MUDSLIDES 
ARE LIKELY OVER AREAS OF STEEP TERRAIN.

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 1824 6525 1824 6535 1827 6536 1829 6541
      1838 6540 1841 6536 1838 6531 1838 6523
      1834 6518
TIME...MOT...LOC 1719Z 180DEG 0KT 1810 6626

$$

EM

000 
WGCA72 TJSJ 281909
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
308 PM AST SUN OCT 28 2007

PRC049-281918-
/O.EXP.TJSJ.FF.W.0037.000000T0000Z-071028T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CULEBRA PR-
308 PM AST SUN OCT 28 2007

...THE FLASH FLOOD WARNING WILL EXPIRE AT 315 PM AST FOR CULEBRA
MUNICIPALITY...

THE NWS DOPPLER WEATHER RADAR INDICATED THAT THE SHOWERS AND 
THUNDERSTORMS THAT WERE AFFECTING THE ISLAND OF CULEBRA HAD 
DIMINISHED OR MOVED AWAY. ALTHOUGH BRIEF SHOWERS WILL LINGER ACROSS 
THESE AREAS DURING THE NEXT HOUR OR SO...NO ADDITIONAL PERSISTENT 
HEAVY RAINFALL OR NEW FLASH FLOODING IS EXPECTED DURING THE NEXT FEW 
HOURS. THEREFORE...THE FLASH FLOOD WARNING WAS ALLOWED TO EXPIRE. 
RESIDENTS AND MOTORISTS ACROSS THESE AREAS SHOULD HOWEVER BE ALERT 
TO PONDING OF WATER ON ROADWAYS AND ALLOW TIME FOR RIVERS AND 
STREAMS TO RETURN TO NORMAL LEVELS.

LAT...LON 1824 6525 1824 6535 1827 6536 1829 6541
      1838 6540 1841 6536 1838 6531 1838 6523
      1834 6518
TIME...MOT...LOC 1908Z 180DEG 0KT 1810 6626

$$

EM

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 6, 4:20 PM CDT	Flash Flood Warning	JSJ		175 days
May 6, 6:06 PM CDT	Flash Flood Warning	JSJ		175 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.