Alert archive / Puerto Rico / Flash Flood Warnings in 2007

Flash Flood Warning 50, NWS JSJ

August 25, 2007

NWS JSJ issued this flash flood warning at Aug 25, 2007, 3:00 PM CDT. It was in force for 108 days. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 25, 2007, 3:00 PM CDT (20:00 UTC)
Expired: Dec 11, 2007, 3:15 AM CST
In force: 108 days
Issued by: NWS JSJ
Area: Counties, with a storm outline in the text
Flood severity: None

The radar

The San Juan radar (TJUA), 36 km from the middle of the area, began a volume at 20:00 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 252003
FFWSJU
PRC081-131-252200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
400 PM AST SAT AUG 25 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     SAN SEBASTIAN
     LARES

* UNTIL 600 PM AST

* AT 358 PM AST...A U.S.G.S. RIVER GAGE INDICATED THAT THE RIO 
GUAJATACA IN LARES HAD RISEN ABOVE FLOOD STAGE...AND WAS CONTINUING 
TO RISE. WITH ADDITIONAL MODERATE TO HEAVY RAINFALL EXPECTED TO 
CONTINUE ACROSS THIS AREA FOR THE NEXT HOUR OR SO...A FLASH FLOOD 
WARNING HAS BEEN ISSUED FOR RESIDENTS AND MOTORISTS ALONG THE RIO 
GUAJATACA IN SAN SEBASTIAN AND LARES THROUGH 600 PM AST.

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 6691 1828 6684 1828 6686 1833 6693
      1836 6692

$$

SR

1 follow-up statement

000 
WGCA52 TJSJ 110629
FFWSJU
PRC029-031-087-119-139-110915-
/O.NEW.TJSJ.FF.W.0050.071211T0610Z-071211T0915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
225 AM AST TUE DEC 11 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     TRUJILLO ALTO
     CANOVANAS
     CAROLINA
     LOIZA
     RIO GRANDE

* UNTIL 515 AM AST

* AT 202 AM AST...USGS RIVER SENSORS ALONG RIO GRANDE DE LOIZA WERE 
SHOWING RAPID RISING WATER LEVELS. THE USGS RIVER SENSOR NEAR BARRIO 
PUEBLO IN TRUJILLO ALTO WAS REPORTING WATER RISING ABOVE FLOOD STAGE 
AT THIS HOUR...WHILE THE USGS RIVER SENSOR DOWNSTREAM THE RIO GRANDE 
DE LOIZA DAM HAS REPORTED A SIGNIFICANT WATER LEVEL INCREASE DURING 
THE PAST HOUR. LOOKS LIKE RAINFALL WILL CONTINUE TO AFFECT THAT AREA 
FOR THE NEXT FEW HOURS. THEREFORE...A FLASH FLOOD WARNING HAS BEEN 
ISSUED FOR RIO GRANDE DE LOIZA RIVER BASIN ALONG THOSE 
MUNICIPALITIES WHERE THE RIVER RUNS THROUGH.

ADDITIONAL RAINFALL OF ONE TO TWO INCHES ARE POSSIBLE ALONG OR 
NEARBY THE RIVER BASIN WITHIN THE NEXT FEW HOURS.

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 1844 6585 1839 6590 1833 6594 1832 6602
      1846 6595
TIME...MOT...LOC 0610Z 180DEG 0KT 1830 6596

$$

OB

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Aug 25, 3:33 PM CDT	Flash Flood Warning	JSJ	108 days
Aug 25, 5:53 PM CDT	Flash Flood Warning	JSJ	108 days
Aug 25, 5:53 PM CDT	Flash Flood Warning	JSJ	109 days

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.