Alert archive / Puerto Rico / Flash Flood Warnings in 2011

Flash Flood Warning 164, NWS JSJ

December 10, 2011

NWS JSJ issued this flash flood warning at Dec 10, 2011, 4:26 AM CST. It was in force for 3 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: Dec 10, 2011, 4:26 AM CST (10:26 UTC)
Expired: Dec 10, 2011, 7:30 AM CST
In force: 3 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 48 km from the middle of the area, began a volume at 10:27 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.

078 
WGCA52 TJSJ 101026
FFWSJU
PRC143-145-101330-
/O.NEW.TJSJ.FF.W.0164.111210T1026Z-111210T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
626 AM AST SAT DEC 10 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     VEGA ALTA
     VEGA BAJA

* UNTIL 930 AM AST

* AT 622 AM AST...RUNOFF FROM PREVIOUS HEAVY RAINFALL HAS RESULTED 
IN SIGNIFICANT RISES ON RIO CIBUCO AT VEGA BAJA. THE CURRENT RIVER 
STAGE IS 16.37 FEET AND RAISING. MOTORISTS DRIVING ALONG RIO CIBUCO 
AT VEGA BAJA AND VEGA ALTA IN FLOOD PRONE AREAS SHOULD EXERCISE 
EXTREME CAUTION. MOVE TO HIGHER GROUND IMMEDIATELY AND NEVER TRY TO 
CROSS A FLOODED ROADWAY. ADDITIONAL SHOWERS WITH HEAVY RAINFALL WILL 
AFFECT THIS MUNICIPALITY IN THE NEXT FEW HOURS AND THIS COULD 
AGGRAVATE THE FLOODING SITUATION.

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 6640 1848 6634 1840 6632 1839 6637

$$

OMS

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

1 follow-up statement

035 
WGCA72 TJSJ 101323
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
923 AM AST SAT DEC 10 2011

PRC143-145-101332-
/O.EXP.TJSJ.FF.W.0164.000000T0000Z-111210T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VEGA ALTA PR-VEGA BAJA PR-
923 AM AST SAT DEC 10 2011

...THE FLASH FLOOD WARNING WILL BE UPGRADED TO A FLOOD WARNING FOR 
VEGA BAJA AND VEGA ALTA MUNICIPALITIES...

LAT...LON 1848 6640 1848 6634 1840 6632 1839 6637

$$

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
Dec 9, 7:51 PM CST	Areal Flood Advisory	JSJ	114 min
Dec 9, 8:49 PM CST	Special Marine Warning	JSJ	56 min
Dec 9, 9:58 PM CST	Areal Flood Advisory	JSJ	6 hr
Dec 9, 10:14 PM CST	Areal Flood Advisory	JSJ	4 hr
Dec 9, 11:01 PM CST	Flash Flood Warning	JSJ	5 hr
Dec 9, 11:21 PM CST	Areal Flood Advisory	JSJ	7 hr
Dec 9, 11:41 PM CST	Flash Flood Warning	JSJ	8 hr
Dec 10, 1:59 AM CST	Flash Flood Warning	JSJ	8 hr
Dec 10, 2:03 AM CST	Areal Flood Advisory	JSJ	4 hr
Dec 10, 2:06 AM CST	Flash Flood Warning	JSJ	6 hr
Dec 10, 2:16 AM CST	Flash Flood Warning	JSJ	5 hr
Dec 10, 2:23 AM CST	Flash Flood Warning	JSJ	5 hr
Dec 10, 6:03 AM CST	Areal Flood Advisory	JSJ	117 min
Dec 10, 6:25 AM CST	Areal Flood Advisory	JSJ	2 hr
Dec 10, 7:38 AM CST	Areal Flood Warning	JSJ	10 hr
Dec 10, 7:57 AM CST	Areal Flood Warning	JSJ	4 hr
Dec 10, 8:00 AM CST	Areal Flood Advisory	JSJ	2 hr
Dec 10, 8:24 AM CST	Areal Flood Advisory	JSJ	111 min
Dec 10, 9:39 AM CST	Flash Flood Warning	JSJ	115 min
Dec 10, 10:04 AM CST	Areal Flood Advisory	JSJ	116 min
Dec 10, 10:14 AM 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.