Alert archive / Puerto Rico / Flash Flood Warnings in 2011

Flash Flood Warning 73, NWS JSJ

July 7, 2011

NWS JSJ issued this flash flood warning at Jul 7, 2011, 10:08 AM CDT. It was in force for 102 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: Jul 7, 2011, 10:08 AM CDT (15:08 UTC)
Expired: Jul 7, 2011, 11:50 AM CDT
In force: 102 min
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 13 km from the middle of the area, began a volume at 15:09 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.

461 
WGCA52 TJSJ 071508
FFWSJU
PRC109-071800-
/O.NEW.TJSJ.FF.W.0073.110707T1508Z-110707T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1108 AM AST THU JUL 7 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITY

  IN PUERTO RICO
     PATILLAS

* UNTIL 200 PM AST

* AT 1100 AM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
PERSISTENT HEAVY RAIN ACROSS PATILLAS AND THE RIO MARIN BASIN. THIS 
RAINS WILL CAUSE THAT THE RIVER WILL PASS FLOOD STAGE IN THE NEXT 30 
MINUTES. THE U.S.G.S RIVER GAGE ALONG RIO MARIN INDICATED THAT THE 
RIVER LEVEL WAS 9.44 FEET AND THE FLOOD STAGE IS 10.00 FEET.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

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 1803 6603 1807 6601 1803 6598 1801 6601
      1798 6600 1797 6602 1801 6606

$$

FIGUEROA/RODRIGUEZ

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

1 follow-up statement

209 
WGCA72 TJSJ 071650
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
1250 PM AST THU JUL 7 2011

PRC109-071659-
/O.CAN.TJSJ.FF.W.0073.000000T0000Z-110707T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PATILLAS PR-
1250 PM AST THU JUL 7 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR PATILLAS
MUNICIPALITY...

DOPPLER RADAR INDICATED THAT THE HEAVY RAIN WHICH AFFECTED THIS AREA
HAD DISSIPATED OR MOVED AWAY. NO SIGNIFICANT ADDITIONAL RAINFALL IS
EXPECTED ACROSS THESE AREAS AT THIS TIME.

LAT...LON 1803 6603 1807 6601 1803 6598 1801 6601
      1798 6600 1797 6602 1801 6606

$$

JJA

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
Jul 7, 3:38 AM CDT	Small Craft Advisory	JSJ	22 hr
Jul 7, 7:18 AM CDT	Areal Flood Advisory	JSJ	3 hr
Jul 7, 7:27 AM CDT	Areal Flood Advisory	JSJ	4 hr
Jul 7, 8:33 AM CDT	Areal Flood Advisory	JSJ	117 min
Jul 7, 10:33 AM CDT	Areal Flood Advisory	JSJ	76 min
Jul 7, 1:34 PM CDT	Areal Flood Advisory	JSJ	116 min
Jul 7, 1:42 PM CDT	Areal Flood Advisory	JSJ	2 hr
Jul 7, 1:50 PM CDT	Areal Flood Advisory	JSJ	115 min
Jul 7, 2:59 PM CDT	Areal Flood Advisory	JSJ	3 hr
Jul 7, 3:43 PM CDT	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.