Alert archive / Puerto Rico / Flash Flood Warnings in 2007

Flash Flood Warning 65, NWS JSJ

December 11, 2007

NWS JSJ issued this flash flood warning at Dec 11, 2007, 10:27 PM CST. It was in force for 6 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 11, 2007, 10:27 PM CST (04:27 UTC)
Expired: Dec 12, 2007, 4:30 AM CST
In force: 6 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 106 km from the middle of the area, began a volume at 04:30 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.

000 
WGCA52 TJSJ 120431
FFWSJU
PRC067-121-125-121030-
/O.NEW.TJSJ.FF.W.0065.071212T0427Z-071212T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1227 AM AST WED DEC 12 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     HORMIGUEROS
     SABANA GRANDE
     SAN GERMAN

* UNTIL 630 AM AST

* AT 1225 AM AST...A U.S.G.S. RIVER GAGE ALONG THE RIO GUANAJIBO 
NEAR HORMIGUEROS WAS INDICATING THAT THE RIO GUANAJIBO REMAINED 
ABOVE FLOOD STAGE AND WAS CONTINUING TO SLOWLY RISE. FOR THIS   
REASON...THE FLASH FLOOD WARNING FOR THE RIO GUANAJIBO AND ITS   
TRIBUTARIES HAS BEEN EXTENDED UNTIL 630 AM AST WEDNESDAY MORNING.

RESIDENTS AND MOTORISTS ARE URGED TO BE ESPECIALLY CAUTIOUS AT NIGHT 
WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. 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 1809 6710 1812 6711 1812 6713 1813 6715
      1814 6713 1808 6696 1805 6696
TIME...MOT...LOC 0427Z 180DEG 0KT 1797 6688

$$

FIGUEROA

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Dec 11, 6:35 PM CST	Flash Flood Warning	JSJ	4 hr
Dec 11, 9:00 PM CST	Special Marine Warning	JSJ	2 hr
Dec 11, 9:21 PM CST	Flash Flood Warning	JSJ	6 hr
Dec 11, 11:45 PM CST	Marine Weather Statement	JSJ	7 hr
Dec 12, 1:57 AM CST	Flash Flood Warning	JSJ	6 hr

Nearby

Flash Flood Warnings in Puerto Rico, 2007 Every flash flood warning in 2007

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.