Alert archive / Puerto Rico / Flash Flood Warnings in 2011

Flash Flood Warning 165, NWS JSJ

December 10, 2011

NWS JSJ issued this flash flood warning at Dec 10, 2011, 9:39 AM CST. It was in force for 115 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: Dec 10, 2011, 9:39 AM CST (15:39 UTC)
Expired: Dec 10, 2011, 11:34 AM CST
In force: 115 min
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 33 km from the middle of the area, began a volume at 15:39 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.

540 
WGCA52 TJSJ 101539
FFWSJU
PRC127-101830-
/O.NEW.TJSJ.FF.W.0165.111210T1539Z-111210T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1139 AM AST SAT DEC 10 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITY

  IN PUERTO RICO
     SAN JUAN

* UNTIL 230 PM AST

* AT 1134 AM AST...EXCESSIVE RUNOFF FROM PREVIOUS HEAVY RAINFALL
HAS RESULTED IN SIGNIFICANT RISES ON RIO PIEDRAS AT HATO REY. THE 
CURRENT RIVER STAGE IS 17.02 FEET AND RAISING. MOTORISTS DRIVING
ALONG THE RIO PIEDRAS 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 1845 6610 1845 6606 1835 6604 1834 6607

$$

OMS

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

1 follow-up statement

301 
WGCA72 TJSJ 101734
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
134 PM AST SAT DEC 10 2011

PRC127-101743-
/O.CAN.TJSJ.FF.W.0165.000000T0000Z-111210T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN JUAN PR-
134 PM AST SAT DEC 10 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SAN JUAN
MUNICIPALITY...

RESIDENTS AND MOTORISTS ACROSS THESE AREAS SHOULD BE ALERT AND ALLOW 
TIME FOR STREAMS...CREEKS AND RIVERS TO RETURN TO NORMAL LEVELS.

LAT...LON 1845 6610 1845 6606 1835 6604 1834 6607

$$

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, 4:26 AM CST	Flash Flood Warning	JSJ	3 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, 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.