Alert archive / Puerto Rico / Flash Flood Warnings in 2011

Flash Flood Warning 4, NWS JSJ

April 15, 2011

NWS JSJ issued this flash flood warning at Apr 15, 2011, 12:59 PM CDT. It was in force for 20 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 15, 2011, 12:59 PM CDT (17:59 UTC)
Expired: Apr 15, 2011, 1:19 PM CDT
In force: 20 min
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 69 km from the middle of the area, began a volume at 18:03 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.

566 
WGCA52 TJSJ 151759
FFWSJU
PRC059-111-152100-
/O.NEW.TJSJ.FF.W.0004.110415T1759Z-110415T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
159 PM AST FRI APR 15 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     GUAYANILLA
     PENUELAS

* UNTIL 500 PM AST

* AT 153 PM AST...DOPPLER RADAR INDICATED VERY HEAVY RAIN OVER 
GUAYANILLA AND PENUELAS. THESE SHOWERS ARE NEARLY STATIONARY 
PRODUCING RAINFALL OF 2 INCHES PER HOUR. THE HEAVIEST RAINFALL WAS 
OCCURRING ALONG GUAYANES RIVER IN GUAYANILLA. 

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 1812 6677 1812 6669 1802 6667 1802 6676

$$

CASTRO

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

1 follow-up statement

721 
WGCA72 TJSJ 151819
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
219 PM AST FRI APR 15 2011

PRC059-111-151828-
/O.CAN.TJSJ.FF.W.0004.000000T0000Z-110415T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GUAYANILLA PR-PENUELAS PR-
219 PM AST FRI APR 15 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR PENUELAS AND
GUAYANILLA MUNICIPALITIES...

THIS WARNING HAS BEEN SUPERCEDED BY A FLASH FLOOD WARNING TO INCLUDE 
THE MUNICIPALITY OF PONCE.

LAT...LON 1812 6677 1812 6669 1802 6667 1802 6676

$$

CASTRO

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
Apr 15, 11:50 AM CDT	Areal Flood Advisory	JSJ	3 hr
Apr 15, 12:21 PM CDT	Areal Flood Advisory	JSJ	2 hr
Apr 15, 1:06 PM CDT	Areal Flood Advisory	JSJ	2 hr
Apr 15, 1:13 PM CDT	Flash Flood Warning	JSJ	2 hr
Apr 15, 1:32 PM CDT	Areal Flood Advisory	JSJ	110 min

Nearby

Flash Flood Warnings in Puerto Rico, 2011 Every flash flood warning in 2011

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.