Alert archive / Puerto Rico / Flash Flood Warnings in 2011

Flash Flood Warning 154, NWS JSJ

November 11, 2011

NWS JSJ issued this flash flood warning at Nov 11, 2011, 1:41 PM CST. It was in force for 79 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: Nov 11, 2011, 1:41 PM CST (19:41 UTC)
Expired: Nov 11, 2011, 3:00 PM CST
In force: 79 min
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 88 km from the middle of the area, began a volume at 19:43 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.

501 
WGCA52 TJSJ 111941
FFWSJU
PRC081-131-112100-
/O.NEW.TJSJ.FF.W.0154.111111T1941Z-111111T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
341 PM AST FRI NOV 11 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     LARES
     SAN SEBASTIAN

* UNTIL 500 PM AST

* AT 333 PM AST...RUNOFF FROM PREVIOUS HEAVY RAINFALL HAS RESULTED 
IN SIGNIFICANT RISES ON RIO GUAJATACA AT LARES. THE CURRENT RIVER 
STAGE IS 16.54 FEET AND RAISING. MOTORISTS DRIVING ALONG THE RIO 
GUAJATACA AT LARES AND SAN SEBASTIAN 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 1836 6686 1826 6683 1826 6690 1837 6694

$$

OMS

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

1 follow-up statement

140 
WGCA72 TJSJ 112052
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
452 PM AST FRI NOV 11 2011

PRC081-131-112101-
/O.EXP.TJSJ.FF.W.0154.000000T0000Z-111111T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LARES PR-SAN SEBASTIAN PR-
452 PM AST FRI NOV 11 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 500 PM AST FOR SAN
SEBASTIAN AND LARES MUNICIPALITIES...

DOPPLER RADAR INDICATED THAT THE HEAVY RAIN WHICH AFFECTED THIS AREA 
HAD DISSIPATED OR MOVED AWAY. RESIDENTS AND MOTORISTS ACROSS THESE 
AREAS SHOULD HOWEVER BE ALERT TO PONDING OF WATER ON ROADWAYS AND 
ALLOW TIME FOR STREAMS...CREEKS AND RIVERS TO RETURN TO NORMAL 
LEVELS.


LAT...LON 1835 6686 1826 6683 1826 6690 1837 6694

$$

OMS

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
Nov 11, 11:37 AM CST	Areal Flood Advisory	JSJ	3 hr
Nov 11, 11:56 AM CST	Areal Flood Advisory	JSJ	93 min
Nov 11, 12:24 PM CST	Areal Flood Advisory	JSJ	111 min
Nov 11, 1:29 PM CST	Areal Flood Advisory	JSJ	2 hr
Nov 11, 2:00 PM CST	Special Marine Warning	JSJ	30 min
Nov 11, 2:25 PM CST	Areal Flood Advisory	JSJ	2 hr

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.