Flash Flood Warning 10, NWS JSJ

Issued

Mar 28, 2012, 10:31 PM CDT (03:31 UTC)

Expired

Mar 29, 2012, 1:30 AM CDT

In force

3 hr

Issued by

NWS JSJ

Area

Storm-based polygon

Flood severity

None

The San Juan radar (TJUA), 88 km from the middle of the area, began a volume at 03:33 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.

975 
WGCA52 TJSJ 290331
FFWSJU
PRC027-065-290630-
/O.NEW.TJSJ.FF.W.0010.120329T0331Z-120329T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1131 PM AST WED MAR 28 2012

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     HATILLO
     CAMUY

* UNTIL 230 AM AST

* AT 1125 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR 
INDICATED   FOR AN AREA OF MODERATE TO HEAVY RAIN OVER THE WARNED 
AREA.

FOR THE RIO CAMUY NEAR BAYANEY - CMAP4
     FLOOD STAGE - 13 FEET.
     AT 1125 PM AST...THE USGS SENSOR INDICATED THE RIVER HAD RISEN
     TO...
     12.98 FEET AND MINOR FLOODING IS FORECAST. AREAS AROUND THE     
     RIVER ARE STILL SATURATED AND STANDING WATER SHOULD BE EXPECTED 
     IN MANY LOW LYING AREAS IN ADDITION TO THE RIVER FLOODING.

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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 1849 6686 1849 6681 1835 6680 1836 6685

$$

SNELL

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

541 
WGCA72 TJSJ 290625
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
225 AM AST THU MAR 29 2012

PRC027-065-290630-
/O.EXP.TJSJ.FF.W.0010.000000T0000Z-120329T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HATILLO PR-CAMUY PR-
225 AM AST THU MAR 29 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 230 AM AST FOR CAMUY AND
HATILLO MUNICIPALITIES...

FOR THE RIO CAMUY NEAR BAYANEY - CMAP4
     FLOOD STAGE - 13 FEET.
     AT 215 AM AST...THE USGS SENSOR INDICATED THE RIVER HAD RISEN
     TO...
     16.49 FEET AND HAS SINCE FALLEN TO 15.94 FEET WITH MODERATE     
     FLOODING.
 
THE RIVER IS EXPECTED TO CONTINUE FALLING...BUT WILL NOT RECEDE 
BELOW FLOOD STAGE UNTIL AFTER DAWN. THEREFORE A FLOOD WARNING WILL 
BE ISSUED SHORTLY.

LAT...LON 1849 6686 1849 6681 1835 6680 1836 6685

$$

SNELL

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

Flash Flood Warnings in Puerto Rico, 2012Every flash flood warning in 2012

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.