Flash Flood Warning 16, NWS JSJ

Issued

May 2, 2012, 1:40 PM CDT (18:40 UTC)

Expired

May 2, 2012, 2:30 PM CDT

In force

50 min

Issued by

NWS JSJ

Area

Storm-based polygon

Flood severity

None

The San Juan radar (TJUA), 86 km from the middle of the area, began a volume at 18:41 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.

567 
WGCA52 TJSJ 021840
FFWSJU
PRC001-059-081-083-093-111-121-125-153-021930-
/O.NEW.TJSJ.FF.W.0016.120502T1840Z-120502T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
240 PM AST WED MAY 2 2012

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     GUAYANILLA
     LARES
     MARICAO
     PENUELAS
     SABANA GRANDE
     SAN GERMAN
     YAUCO
     ADJUNTAS
     LAS MARIAS

* UNTIL 330 PM AST

* AT 232 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  TORRENTIAL RAINFALL OCCURING OVER THE WARNED AREA. THIS RAINFALL 
  IN ADDITION TO THE RAINFALL THAT HAS ALREADY OCCURRED...WILL 
  MAINTAIN DANGEROUS WATER LEVELS ON SMALL STREAMS...CREEKS AND 
  RIVERS ACROSS THESE MUNICIPALITIES.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN SAN
JUAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 WILL CAUSE FLOODING OF CREEKS AND STREAMS...ROADS
AND ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO TRIGGER ROCK AND
MUDSLIDES IN STEEP TERRAIN.

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 1826 6699 1818 6674 1809 6673 1812 6701

$$

TIRADO

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

412 
WGCA72 TJSJ 021938
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
338 PM AST WED MAY 2 2012

PRC001-059-081-083-093-111-121-125-153-021950-
/O.EXP.TJSJ.FF.W.0016.000000T0000Z-120502T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GUAYANILLA PR-LARES PR-MARICAO PR-PENUELAS PR-SABANA GRANDE PR-
SAN GERMAN PR-YAUCO PR-ADJUNTAS PR-LAS MARIAS PR-
338 PM AST WED MAY 2 2012

...THE FLASH FLOOD WARNING WAS ALLOWED TO EXPIRE FOR LAS 
MARIAS...ADJUNTAS...YAUCO...SAN GERMAN...SABANA GRANDE... 
PENUELAS...MARICAO...LARES AND GUAYANILLA MUNICIPALITIES...

THE DOPPLER WEATHER RADAR INDICATED THAT THE HEAVY RAIN WHICH 
AFFECTED THIS AREA CONTINUED TO DISSIPATE OR HAS MOVED AWAY. NO 
SIGNIFICANT ADDITIONAL HEAVY RAINFALL IS EXPECTED ACROSS THESE AREAS 
AT THIS TIME. THEREFORE THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO 
EXPIRE. HOWEVER RUNOFF FROM THESE RECENT HEAVY RAINS WILL CONTINUE 
TO AFFECT SURROUNDING RIVERS AND TRIBUTARIES AND STREAMS. THIS WILL 
LEAD TO URBAN AND SMALL STREAM FLOODING...AS A RESULT AN URBAN AND 
SMALL STREAM ADVISORY CONTINUE IN EFFECT FOR THESE AREAS UNTIL 5:00 
PM AST. RESIDENTS AND MOTORIST ACROSS THESE AREAS SHOULD TAKE THE 
NECESSARY PRECAUTIONS WHEN TRANSITING ACROSS THESE AREAS.  

LAT...LON 1826 6699 1818 6674 1809 6673 1812 6701

$$

RAM

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.