Alert archive / Puerto Rico / Flash Flood Warnings in 2007

Flash Flood Warning 40, NWS JSJ

May 30, 2007

NWS JSJ issued this flash flood warning at May 30, 2007, 12:40 PM CDT. It was in force for 151 days. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 30, 2007, 12:40 PM CDT (17:40 UTC)
Expired: Oct 28, 2007, 4:30 PM CDT
In force: 151 days
Issued by: NWS JSJ
Area: Counties, with a storm outline in the text
Flood severity: None

The radar

The San Juan radar (TJUA), 55 km from the middle of the area, began a volume at 17:38 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.

What was reported inside it

Time	Report	Where	Remark
Sep 22, 9:35 PM CDT	HEAVY RAIN 0	Juana Diaz, PR	HEAVY RAINS ACROSS BARRIO PIEDRA GUZA CAUSED URBAN AND STREET FLOODING DUE TO POOR DRAINAGE AREAS WHERE THE FLOW OF THE RAINFALL WAS BLOCKED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The text

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

000 
WGCA52 TJSJ 301741
FFWSJU
PRC027-065-081-302030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
140 PM AST WED MAY 30 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     LARES
     CAMUY
     HATILLO

* UNTIL 430 PM AST

* AT 140 PM AST...VERY HEAVY RAIN HAS BEEN FALLING OVER THE RIO 
CAMUY BASIN FROM EAST OF CALLEJONES IN LARES TO EAST OF QUEBRADA IN 
QUEBRADA. A RIVER GAGE IS SHOWING THIS RISE. THIS WATER WILL SHORTLY 
OVERWHELM THE RIVER AND SEND IT INTO FLOOD.

* ADDITIONAL RAIN IS FALLING IN THE AREA AND FLOODING IS NOT 
EXPECTED TO IMMEDIATELY RECEDE. 

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 1820 6688 1836 6688 1833 6685 1836 6682
      1841 6682 1841 6677 1833 6682 1822 6682
      1817 6685

$$

SNELL

1 follow-up statement

000 
WGCA52 TJSJ 281835
FFWSJU
PRC007-015-025-035-041-057-063-069-077-085-095-103-109-123-129-151-
282130-
/O.NEW.TJSJ.FF.W.0039.071028T1829Z-071028T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     CAGUAS
     CIDRA
     CAYEY
     AGUAS BUENAS
     JUNCOS
     GURABO
     SAN LORENZO
     LAS PIEDRAS
     ARROYO
     PATILLAS
     MAUNABO
     NAGUABO
     GUAYAMA
     HUMACAO
     SALINAS
     YABUCOA

* UNTIL 530 PM AST

* AT 225 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  AREAS OF LIGHT TO MODERATE RAIN AFFECTING THESE MUNICIPALITIES.    
  EMERGENCY MANAGEMENT INDICATES SEVERAL ROADS FLOODED AND           
  IMPASSABLE. ALSO...ANOTHER NEW BAND OF SHOWERS AND EMBEDDED        
  THUNDERSTORMS WITH VERY HEAVY RAIN WAS POISED TO MOVE ACROSS THE   
  WARNING AREA BY 315 PM AND THEN CONTINUE THROUGH 530 PM.           
  ADDITIONAL RAINFALL OF 1 TO 3 INCHES WILL OCCUR AND THIS WILL      
  RESULT IN NEW FLASH FLOODING OF LOW LYING AREAS...ROADS...RIVERS   
  AND STREAMS...AND WILL FURTHER AGGRAVATE ONGOING FLOODING.         
  MUDSLIDES ARE LIKELY OVER AREAS OF STEEP TERRAIN.

THIS IS A DANGEROUS SITUATION. 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 1794 6618 1817 6622 1828 6605 1827 6590
      1825 6589 1826 6586 1824 6566 1798 6587
TIME...MOT...LOC 1829Z 180DEG 0KT 1798 6603

$$

BCS

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 30, 1:08 PM CDT	Special Marine Warning	JSJ		67 min
May 30, 2:46 PM CDT	Special Marine Warning	JSJ		44 min

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; local storm reports from the same archive; radar from the NEXRAD Level II archive.