Alert archive / Puerto Rico / Flash Flood Warnings in 2009

Flash Flood Warning 13, NWS JSJ

May 8, 2009

NWS JSJ issued this flash flood warning at May 8, 2009, 4:10 PM CDT. It was in force for 3 hr. 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 8, 2009, 4:10 PM CDT (21:10 UTC)
Expired: May 8, 2009, 7:00 PM CDT
In force: 3 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 49 km from the middle of the area, began a volume at 21:08 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 082110
FFWSJU
PRC039-082300-
/O.NEW.TJSJ.FF.W.0013.090508T2110Z-090508T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
510 PM AST FRI MAY 8 2009

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITY

  IN PUERTO RICO
     CIALES

* UNTIL 700 PM AST

* AT 504 PM AST...A U.S.G.S RIVER GAGE SENSOR ALONG THE RIO GRANDE 
DE MANATI IN CIALES INDICATED THAT THE RIVER HAD RISEN ABOVE FLOOD 
STAGE AND WAS CONTINUING TO RISE. WHILE THE HEAVY RAINFALL HAS ENDED 
ACROSS THIS AREA...RUNOFF FROM HEAVY RAINFALL EARLIER THIS AFTERNOON 
WILL CONTINUE TO RESULT FLOODING ALONG THE RIO GRANDE DE MANATI IN 
CIALES UNTIL AT LEAST 7 PM AST.

FOR THE RIO GRANDE DE MANATI NEAR CIALES - CIAP4
     FLOOD STAGE - 10 FEET.
     AT 504 PM AST...THE USGS SENSOR INDICATED THE RIVER HAD RISEN
     TO...
     10.74 FEET.
     AS A RESULT...MINOR FLOODING IS FORECAST ALONG THE RIO GRANDE   
     DE MANATI IN CIALES AND ALONG ITS TRIBUTARIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 6647 1831 6644 1830 6647 1838 6651

$$

SR

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN

2 follow-up statements

000 
WGCA52 TJSJ 082258
FFWSJU
PRC039-090000-
/O.EXT.TJSJ.FF.W.0013.000000T0000Z-090509T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
658 PM AST FRI MAY 8 2009

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITY

  IN PUERTO RICO
     CIALES

* UNTIL 800 PM AST

* AT 651 PM AST...A U.S.G.S. RIVER GAGE SENSOR ALONG THE RIO GRANDE 
DE MANATI IN CIALES INDICATED THAT THE RIVER REMAINED ABOVE FLOOD 
STAGE...AND MINOR FLOODING ALONG THE RIO GRANDE DE MANATI AND ITS 
TRIBUTARIES IN CIALES WAS NOW EXPECTED TO CONTINUE UNTIL 8 PM AST.

FOR THE RIO GRANDE DE MANATI NEAR CIALES - CIAP4
     FLOOD STAGE - 10 FEET.
     AT 651 PM AST...THE USGS SENSOR INDICATED THE RIVER WAS AT...
     10.39 FEET.
     MINOR FLOODING IS FORECAST TO CONTINUE THROUGH 8 PM AST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 6647 1831 6644 1830 6647 1838 6651

$$

SR

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN

000 
WGCA72 TJSJ 082356
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
756 PM AST FRI MAY 8 2009

PRC039-090002-
/O.EXP.TJSJ.FF.W.0013.000000T0000Z-090509T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CIALES PR-
756 PM AST FRI MAY 8 2009

...THE FLASH FLOOD WARNING WILL EXPIRE AT 800 PM AST FOR THE RIO 
GRANDE DE MANATI IN THE MUNICIPALITY OF CIALES...

AT 752 PM...A U.S.G.S. RIVER GAGE SENSOR ALONG THE RIO GRANDE DE 
MANATI IN CIALES INDICATED THAT THE RIVER HAD FALLEN BELOW FLOOD 
STAGE...AND THE RIVER WAS CONTINUING TO RECEDE. FOR THIS 
REASON...THE FLASH FLOOD WARNING FOR THE RIO GRANDE DE MANATI IN 
CIALES WILL BE ALLOWED TO EXPIRE AT 8 PM AST. 

WHILE THE FLASH FLOOD WARNING FOR CIALES WILL EXPIRE AT 8 PM...A 
FLOOD WARNING FOR THE RIO GRANDE DE MANATI AND ITS TRIBUTARIES IN 
MANATI REMAINS IN EFFECT UNTIL 115 AM AST SATURDAY MORNING.

AS A REMINDER...MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE 
YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD 
WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING 
WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN 
ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN 
AROUND...DONT DROWN.

LAT...LON 1838 6647 1831 6644 1830 6647 1838 6651

$$

SR

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
May 8, 11:24 AM CDT	Areal Flood Advisory	JSJ	3 hr
May 8, 11:39 AM CDT	Areal Flood Advisory	JSJ	3 hr
May 8, 12:33 PM CDT	Flash Flood Warning	JSJ	117 min
May 8, 12:46 PM CDT	Areal Flood Advisory	JSJ	3 hr
May 8, 2:15 PM CDT	Areal Flood Advisory	JSJ	3 hr
May 8, 3:11 PM CDT	Flash Flood Warning	JSJ	79 min
May 8, 3:28 PM CDT	Areal Flood Advisory	JSJ	2 hr
May 8, 3:46 PM CDT	Areal Flood Advisory	JSJ	119 min
May 8, 5:25 PM CDT	Areal Flood Warning	JSJ	15 hr

Nearby

Flash Flood Warnings in Puerto Rico, 2009 Every flash flood warning in 2009

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.