Alert archive / Puerto Rico / Flash Flood Warnings in 2007

Flash Flood Warning 22, NWS JSJ

April 22, 2007

NWS JSJ issued this flash flood warning at Apr 22, 2007, 11:12 PM CDT. It took effect at Apr 22, 2007, 11:22 PM CDT. It was in force for 188 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: Apr 22, 2007, 11:12 PM CDT (04:12 UTC)
In effect from: Apr 22, 2007, 11:22 PM CDT
Expired: Oct 27, 2007, 2:30 PM CDT
In force: 188 days
Issued by: NWS JSJ
Area: Counties, with a storm outline in the text
Flood severity: None

The radar

The San Juan radar (TJUA), 149 km from the middle of the area, began a volume at 04:15 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 230422
FFWSJU
PRC051-091-143-145-230630-

HERE 1212 AM AST THERE

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1212 AM AST MON APR 23 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...

  IN PUERTO RICO
     VEGA ALTA
     DORADO
     MANATI
     AND HAVE EXTENDED THE PREVIOUS ONE ISSUED FOR VEGA BAJA

* UNTIL 230 AM AST

* AT 1209 AM AST...REPORTS FROM DORADO AND VEGA BAJA INDICATED 
FLOODING IN THESE MUNICIPALITIES FROM A PERSISTENT AREA OF SHOWERS 
OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VEGA
  BAJA...VEGA ALTA...SAN ANTONIO...MONSERRATE...MANATI...LA LUISA...
  DORADO...COTO NORTE...BRENAS AND BARCELONETA

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO 
CROSS WATER COVERED BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER 
TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO 
ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

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 1838 6641 1836 6652 1846 6652 1849 6632
      1846 6629 1846 6624 1844 6627 1838 6627
      1833 6635

$$

RIVERA

3 follow-up statements

000 
WGCA52 TJSJ 271628
FFWSJU
VIC010-271930-
/O.NEW.TJSJ.FF.W.0022.071027T1623Z-071027T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1228 PM AST SAT OCT 27 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING ISLAND

  IN THE U.S. VIRGIN ISLANDS

     SAINT CROIX

* UNTIL 330 PM AST

* AT 1223 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR AND 
EMERGENCY MANAGEMENT PERSONNEL CONTINUED TO INDICATE SHOWERS AND 
ISOLATED THUNDERSTORMS WITH HEAVY RAIN AFFECTING ST CROIX... 
ESPECIALLY THE EAST HALF. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 
INCHES WILL OCCUR THROUGH 330 PM AND THIS WILL RESULT IN NEW FLASH 
FLOODING OF LOW LYING AREAS...ROADS...GUTS AND STREAMS...AND WILL 
FURTHER AGGRAVATE ONGOING FLOODING. IN ADDITION...MUDSLIDES ARE 
POSSIBLE OVER AREAS OF STEEP TERRAIN.

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 1769 6460 1764 6473 1764 6490 1768 6494
      1776 6494 1782 6481 1778 6455 1773 6455
TIME...MOT...LOC 1623Z 180DEG 0KT 1795 6497

$$

BCS

000 
WGCA72 TJSJ 271921
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
321 PM AST SAT OCT 27 2007

PRC007-015-025-029-035-037-041-045-053-057-063-069-077-085-095-
103-109-119-123-129-151-272000-
/O.EXP.TJSJ.FF.W.0023.000000T0000Z-071027T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FAJARDO PR-CEIBA PR-CAGUAS PR-CIDRA PR-CAYEY PR-COMERIO-PR-AGUAS 
BUENAS PR- JUNCOS PR-GURABO PR-SAN LORENZO PR-LAS PIEDRAS PR-ARROYO 
PR-PATILLAS PR-MAUNABO PR-NAGUABO PR-CANOVANAS PR-GUAYAMA PR-HUMACAO 
PR-SALINAS PR-RIO GRANDE PR-YABUCOA PR-
321 PM AST SAT OCT 27 2007

...THE FLASH FLOOD WARNING HAS EXPIRED FOR FAJARDO...CEIBA... 
YABUCOA...RIO GRANDE...HUMACAO...GUAYAMA...CANOVANAS...NAGUABO... 
MAUNABO...PATILLAS...ARROYO...LAS PIEDRAS...SAN LORENZO...GURABO... 
JUNCOS...AGUAS BUENAS...CAYEY...CIDRA...CAGUAS...GURABO...AND 
COMERIO MUNICIPALITIES...

AT 310 PM AST...DOPPLER WEATHER RADAR INDICATED THAT MOST OF THE 
SHOWERS AND ISOLATED THUNDERSTORMS THAT WERE AFFECTING THESE 
MUNICIPALITIES EARLIER...HAD WEAKENED OR MOVED AWAY FROM THE AREA. 
ALTHOUGH AREAS OF LIGHT TO OCCASIONALLY MODERATE RAIN WILL CONTINUE 
TO AFFECT THE FORMER WARNING AREA THROUGH THE REMAINDER OF THE 
AFTERNOON...THE IMMEDIATE RISK OF ANY PERSISTENT HEAVY RAINFALL OR 
NEW FLASH FLOODING HAS TEMPORARILY ENDED. THEREFORE...THE FLASH 
FLOOD WARNING WAS ALLOWED TO EXPIRE.

HOWEVER...ADDITIONAL SHOWERS AND THUNDERSTORMS WILL LIKELY DEVELOP 
OVER THE EASTERN THIRD OF PUERTO RICO BY THIS EVENING OR DURING 
TONIGHT. ALSO...RIVERS ACROSS THESE AREAS REMAIN AT ABOVE NORMAL 
LEVELS. HEAVY RAINFALL ASSOCIATED WITH THESE SHOWERS AND STORMS 
COULD ONCE AGAIN RESULT IN FLASH FLOODING. FOR THIS REASON...A FLASH 
FLOOD WATCH REMAINS IN EFFECT FOR ALL OF PUERTO RICO...INCLUDING 
CULEBRA AND VIEQUES THROUGH 400 AM SUNDAY MORNING.

THUS...ALL LOCAL RESIDENTS AND VISITORS ARE URGED TO CONTINUE TO 
CLOSELY MONITOR THE LOCAL WEATHER DURING THE REMAINDER OF THIS 
AFTERNOON THROUGH TONIGHT AND SUNDAY...AND BE READY FOR ACTION IN 
CASE FLOODING IS OBSERVED OR A FLASH FLOOD WARNING IS ISSUED.   

LAT...LON 1829 6620 1829 6580 1799 6580 1793 6589
      1793 6600 1790 6603 1790 6620
TIME...MOT...LOC 1653Z 180DEG 0KT 1809 6600

$$

000 
WGCA72 TJSJ 271933 CCA
FFSSJU

FLASH FLOOD STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE SAN JUAN PR
321 PM AST SAT OCT 27 2007

PRC007-015-025-029-035-037-041-045-053-057-063-069-077-085-095-
103-109-119-123-129-151-272000-
/O.EXP.TJSJ.FF.W.0023.000000T0000Z-071027T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FAJARDO PR-CEIBA PR-CAGUAS PR-CIDRA PR-CAYEY PR-COMERIO-PR-AGUAS 
BUENAS PR-JUNCOS PR-GURABO PR-SAN LORENZO PR-LAS PIEDRAS PR-ARROYO 
PR-PATILLAS PR-MAUNABO PR-NAGUABO PR-CANOVANAS PR-GUAYAMA PR-HUMACAO 
PR-SALINAS PR-RIO GRANDE PR-YABUCOA PR-
321 PM AST SAT OCT 27 2007

...THE FLASH FLOOD WARNING HAS EXPIRED FOR FAJARDO...CEIBA... 
YABUCOA...RIO GRANDE...HUMACAO...GUAYAMA...CANOVANAS...NAGUABO... 
MAUNABO...PATILLAS...ARROYO...LAS PIEDRAS...SAN LORENZO...GURABO... 
JUNCOS...AGUAS BUENAS...CAYEY...CIDRA...CAGUAS...GURABO...
COMERIO...AND SALINAS MUNICIPALITIES...

AT 310 PM AST...DOPPLER WEATHER RADAR INDICATED THAT MOST OF THE 
SHOWERS AND ISOLATED THUNDERSTORMS THAT WERE AFFECTING THESE 
MUNICIPALITIES EARLIER...HAD WEAKENED OR MOVED AWAY FROM THE AREA. 
ALTHOUGH AREAS OF LIGHT TO OCCASIONALLY MODERATE RAIN WILL CONTINUE 
TO AFFECT THE FORMER WARNING AREA THROUGH THE REMAINDER OF THE 
AFTERNOON...THE IMMEDIATE RISK OF ANY PERSISTENT HEAVY RAINFALL OR 
NEW FLASH FLOODING HAS TEMPORARILY ENDED. THEREFORE...THE FLASH 
FLOOD WARNING WAS ALLOWED TO EXPIRE.

HOWEVER...ADDITIONAL SHOWERS AND THUNDERSTORMS WILL LIKELY DEVELOP 
OVER THE EASTERN THIRD OF PUERTO RICO BY THIS EVENING OR DURING 
TONIGHT. ALSO...RIVERS ACROSS THESE AREAS REMAIN AT ABOVE NORMAL 
LEVELS. HEAVY RAINFALL ASSOCIATED WITH THESE SHOWERS AND STORMS 
COULD ONCE AGAIN RESULT IN FLASH FLOODING. FOR THIS REASON...A FLASH 
FLOOD WATCH REMAINS IN EFFECT FOR ALL OF PUERTO RICO...INCLUDING 
CULEBRA AND VIEQUES THROUGH 400 AM SUNDAY MORNING.

THUS...ALL LOCAL RESIDENTS AND VISITORS ARE URGED TO CONTINUE TO 
CLOSELY MONITOR THE LOCAL WEATHER DURING THE REMAINDER OF THIS 
AFTERNOON THROUGH TONIGHT AND SUNDAY...AND BE READY FOR ACTION IN 
CASE FLOODING IS OBSERVED OR A FLASH FLOOD WARNING IS ISSUED.   

LAT...LON 1829 6620 1829 6580 1799 6580 1793 6589
      1793 6600 1790 6603 1790 6620
TIME...MOT...LOC 1653Z 180DEG 0KT 1809 6600

$$

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Apr 22, 7:20 PM CDT	Flash Flood Warning	JSJ	187 days
Apr 22, 7:20 PM CDT	Flash Flood Warning	JSJ	187 days
Apr 22, 7:56 PM CDT	Flash Flood Warning	JSJ	187 days
Apr 22, 7:56 PM CDT	Flash Flood Warning	JSJ	188 days
Apr 22, 9:09 PM CDT	Flash Flood Warning	JSJ	188 days
Apr 22, 9:09 PM CDT	Flash Flood Warning	JSJ	188 days
Apr 22, 10:20 PM CDT	Flash Flood Watch	JSJ	54 hr
Apr 22, 11:12 PM CDT	Flash Flood Warning	JSJ	188 days
Apr 23, 1:18 AM CDT	Flash Flood Warning	JSJ	188 days
Apr 23, 7:19 AM CDT	Flash Flood Warning	JSJ	187 days
Apr 23, 7:19 AM CDT	Flash Flood Warning	JSJ	187 days
Apr 23, 7:19 AM CDT	Flash Flood Warning	JSJ	187 days
Apr 23, 7:19 AM CDT	Flash Flood Warning	JSJ	188 days
Apr 23, 10:10 AM CDT	Flash Flood Warning	JSJ	187 days
Apr 23, 10:10 AM CDT	Flash Flood Warning	JSJ	188 days

Nearby

Flash Flood Warnings in Puerto Rico, 2007 Flash Flood Warnings in U.S. Virgin Islands, 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.