Alert archive / Puerto Rico / Flash Flood Warnings in 2007

Flash Flood Warning 36, NWS JSJ

May 6, 2007

NWS JSJ issued this flash flood warning at May 6, 2007, 4:20 PM CDT. It was in force for 175 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 6, 2007, 4:20 PM CDT (21:20 UTC)
Expired: Oct 28, 2007, 1:30 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), 57 km from the middle of the area, began a volume at 21:22 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 062122
FFWSJU
PRC143-145-062315-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
520 PM AST SUN MAY 6 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 7:15 PM AST

* AT 5:16 PM AST...LOCAL EMERGENCY MANAGEMENT OFFICIALS IN VEGA      
  BAJA REPORT THAT RIO CIBUCO HAS FLOWED OUT OF ITS BANKS...WITH     
  HIGHWAY 620 INUNDATED. 

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 1838 6640 1838 6633 1850 6631 1850 6640

$$

1 follow-up statement

000 
WGCA52 TJSJ 281533
FFWSJU
PRC001-009-019-043-055-059-073-075-079-107-111-113-133-141-149-153-
281830-
/O.NEW.TJSJ.FF.W.0036.071028T1529Z-071028T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1129 AM 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
     COAMO
     AIBONITO
     BARRANQUITAS
     JAYUYA
     ADJUNTAS
     OROCOVIS
     UTUADO
     YAUCO
     VILLALBA
     GUAYANILLA
     GUANICA
     JUANA DIAZ
     PONCE
     SANTA ISABEL
     PENUELAS
     LAJAS

* UNTIL 230 PM AST

* AT 1122 AM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  AREAS OF LIGHT RAIN AFFECTING THESE MUNICIPALITIES. HOWEVER...A    
  NEW BAND OF SHOWERS AND EMBEDDED THUNDERSTORMS WITH VERY HEAVY     
  RAIN WAS POISED TO MOVE ACROSS THE WARNING AREA BEGINNING BY 1145  
  AM AND THEN CONTINUING THROUGH 230 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.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...ROADS
AND LANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING
AREAS ARE 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 1796 6705 1813 6656 1814 6680 1831 6682
      1834 6679 1833 6658 1817 6653 1825 6650
      1828 6641 1825 6628 1818 6624 1795 6635
TIME...MOT...LOC 1529Z 180DEG 0KT 1803 6659

$$
RAM

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 6, 6:06 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; local storm reports from the same archive; radar from the NEXRAD Level II archive.