Alert archive / Puerto Rico / Flash Flood Warnings in 2012

Flash Flood Warning 1, NWS JSJ

March 12, 2012

NWS JSJ issued this flash flood warning at Mar 12, 2012, 3:33 PM CDT. It was in force for 7 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: Mar 12, 2012, 3:33 PM CDT (20:33 UTC)
Expired: Mar 12, 2012, 10:30 PM CDT
In force: 7 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 46 km from the middle of the area, began a volume at 20:35 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.

148 
WGCA52 TJSJ 122033
FFWSJU
PRC047-143-145-130230-
/O.NEW.TJSJ.FF.W.0001.120312T2033Z-120313T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
433 PM AST MON MAR 12 2012

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     COROZAL
     VEGA ALTA
     VEGA BAJA

* UNTIL 1030 PM AST

* AT 425 PM AST...EXCESSIVE RUNOFF FROM PREVIOUS HEAVY RAINFALL HAS 
RESULTED IN SIGNIFICANT RISES ON RIO CIBUCO ACROSS SECTOR FATIMA IN 
VEGA ALTA. ROADS 620 AND 647 ARE CLOSED TO TRANSIT AND ROADS 
675...676 AND 690 WILL BE CLOSED TO TRANSIT VERY SOON. MOTORISTS 
DRIVING ALONG THE RIO CIBUCO IN FLOOD PRONE AREAS SHOULD EXERCISE 
EXTREME CAUTION. MOVE TO HIGHER GROUND IMMEDIATELY AND NEVER TRY TO 
CROSS A FLOODED ROADWAY.

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 1848 6639 1848 6633 1834 6635 1835 6639

$$

FIGUEROA

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

2 follow-up statements

649 
WGCA52 TJSJ 130028
FFWSJU
PRC047-143-145-130330-
/O.EXT.TJSJ.FF.W.0001.000000T0000Z-120313T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
828 PM AST MON MAR 12 2012

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     VEGA ALTA
     VEGA BAJA

* UNTIL 1130 PM AST

* AT 820 PM AST...EXCESSIVE RUNOFF FROM PREVIOUS HEAVY RAINFALL HAS 
RESULTED IN SIGNIFICANT RISES ON RIO CIBUCO AT VEGA ALTA AND VEGA 
BAJA...SPECIALLY ACROSS SECTOR FATIMA. ROAD 2...ROAD 620 AND ROAD 
690 ARE FLOODED AND CLOSED TO TRANSIT. MOTORISTS DRIVING ALONG THE 
RIO CIBUCO IN FLOOD PRONE AREAS ACROSS ACROSS VEGA ALTA AND VEGA 
BAJA...SHOULD EXERCISE EXTREME CAUTION. MOVE TO HIGHER GROUND 
IMMEDIATELY AND NEVER TRY TO CROSS A FLOODED ROADWAY.

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.

&&

LAT...LON 1848 6639 1848 6633 1834 6635 1835 6639

$$

FIGUEROA

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

202 
WGCA72 TJSJ 130334
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
1134 PM AST MON MAR 12 2012

PRC047-143-145-130341-
/O.EXP.TJSJ.FF.W.0001.000000T0000Z-120313T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COROZAL PR-VEGA ALTA PR-VEGA BAJA PR-
1134 PM AST MON MAR 12 2012

...THE FLASH FLOOD WARNING HAS EXPIRED FOR VEGA BAJA...VEGA ALTA AND
COROZAL MUNICIPALITIES...

THE HEAVY RAIN THAT CAUSED FLOODING IN THE AREA HAS ENDED AND LAW 
ENFORCEMENT HAS VERIFIED THAT FLOODING RECEDED. SO THE WARNING HAS 
EXPIRED.

LAT...LON 1848 6639 1848 6633 1834 6635 1835 6639

$$
GV

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
Mar 12, 11:47 AM CDT	Areal Flood Advisory	JSJ	3 hr
Mar 12, 1:26 PM CDT	Areal Flood Advisory	JSJ	108 min
Mar 12, 1:34 PM CDT	Areal Flood Advisory	JSJ	116 min
Mar 12, 3:17 PM CDT	Small Craft Advisory	JSJ	68 hr

Nearby

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

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.