Alert archive / Puerto Rico / Flash Flood Warnings in 2007

Flash Flood Warning 46, NWS JSJ

July 17, 2007

NWS JSJ issued this flash flood warning at Jul 17, 2007, 3:18 PM CDT. It was in force for 105 days. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 17, 2007, 3:18 PM CDT (20:18 UTC)
Expired: Oct 30, 2007, 7:15 AM CDT
In force: 105 days
Issued by: NWS JSJ
Area: Counties, with a storm outline in the text
Flood severity: None

The radar

The San Juan radar (TJUA), 17 km from the middle of the area, began a volume at 20:19 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.

What was reported inside it

Time	Report	Where	Remark
Sep 22, 9:35 PM CDT	HEAVY RAIN 0	Juana Diaz, PR	HEAVY RAINS ACROSS BARRIO PIEDRA GUZA CAUSED URBAN AND STREET FLOODING DUE TO POOR DRAINAGE AREAS WHERE THE FLOW OF THE RAINFALL WAS BLOCKED.
Oct 27, 8:40 PM CDT	FLASH FLOOD	Arroyo, PR	HIGHWAY 3 IN CUATRO CALLE FLOODED.
Oct 28, 9:28 PM CDT	FLOOD	Arroyo, PR	HIGHWAY 755 SECTOR BUENA VISTA BARRIO ANCONE FLOODED

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGCA52 TJSJ 172021
FFWSJU
PRC023-067-097-125-172215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
418 PM AST TUE JUL 17 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     HORMIGUEROS
     SAN GERMAN
     CABO ROJO
     MAYAGUEZ

* UNTIL 615 PM AST

* AT 414 PM AST...TRAINED WEATHER SPOTTERS REPORTED FLOODING OVER 
HIGHWAYS 114 OF SAN GERMAN AND 103 OF CABO ROJO.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HORMIGUEROS

FLOOD WATERS ARE MOVING DOWN RIO GUANAJIBO FROM SAN GERMAN TO THE 
MONA PASSAGE. THE RIVER IS STILL RISING AND IN SOME AREAS IT IS 
EXPECTED TO OVERFLOW ITS BANKS BY 5 OR 6 PM.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN SAN 
JUAN. PLEASE DO NOT TRY TO CROSS FLOODED ROADS IN YOUR CAR OR TRUCK.

LAT...LON 1814 6700 1807 6702 1810 6721 1818 6719

$$

SNELL

2 follow-up statements

000 
WGCA52 TJSJ 301015
FFWSJU
PRC009-015-029-031-035-043-057-063-069-073-075-077-085-095-103-107-
109-119-123-129-133-149-151-301215-
/O.NEW.TJSJ.FF.W.0046.071030T1011Z-071030T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
611 AM AST TUE OCT 30 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED AND EXPANDED 
THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     COAMO
     CAYEY
     AIBONITO
     JUNCOS
     JAYUYA
     GURABO
     OROCOVIS
     SAN LORENZO
     VILLALBA
     LAS PIEDRAS
     ARROYO
     PATILLAS
     MAUNABO
     NAGUABO
     CANOVANAS
     GUAYAMA
     CAROLINA
     HUMACAO
     JUANA DIAZ
     SALINAS
     SANTA ISABEL
     RIO GRANDE
     YABUCOA

* UNTIL 815 AM AST

* AT 605 AM AST...DOPPLER WEATHER RADAR INDICATED THAT A LARGE AREA 
OF HEAVY RAINFALL CONTINUE ACROSS THESE MUNICIPALITIES OF PUERTO 
RICO. DUE TO HEAVY RAINFALL ACROSS THIS AREA THE PAST FEW DAYS...AND 
ADDITIONAL HEAVY RAINFALL EXPECTED THROUGH THE REST OF THE MORNING 
HOURS...A FLASH FLOOD WARNING HAS BEEN EXTENDED AND EXPANDED FOR 
SOUTH AND SOUTHEASTERN MUNICIPALITIES OF PUERTO RICO THROUGH 815 AM 
AST THIS MORNING. IN ADDITION...MUDSLIDES CAN BE EXPECTED IN AREAS 
OF STEEP TERRAIN. 

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 1797 6651 1800 6654 1816 6656 1813 6605
      1837 6590 1824 6574 1795 6606
TIME...MOT...LOC 1011Z 180DEG 0KT 1823 6595

$$

FIGUEROA

000 
WGCA72 TJSJ 301143
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
740 AM AST TUE OCT 30 2007

PRC009-015-029-031-035-043-057-063-069-073-075-077-085-095-103-107-
109-119-123-129-133-149-151-301150-
/O.CAN.TJSJ.FF.W.0046.000000T0000Z-071030T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COAMO PR-CAYEY PR-AIBONITO PR-JUNCOS PR-JAYUYA PR-GURABO PR-
OROCOVIS PR-SAN LORENZO PR-VILLALBA PR-LAS PIEDRAS PR-ARROYO 
PR-PATILLAS PR-MAUNABO PR-NAGUABO PR-CANOVANAS PR-GUAYAMA 
PR-CAROLINA PR-HUMACAO PR-JUANA DIAZ PR-SALINAS PR-SANTA ISABEL 
PR-RIO GRANDE PR-YABUCOA PR-
740 AM AST TUE OCT 30 2007

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR YABUCOA...RIO
GRANDE...SANTA ISABEL...SALINAS...JUANA DIAZ...HUMACAO...CAROLINA...
GUAYAMA...CANOVANAS...NAGUABO...MAUNABO...PATILLAS...ARROYO...LAS
PIEDRAS...VILLALBA...SAN LORENZO...OROCOVIS...GURABO...JAYUYA...
JUNCOS...AIBONITO...CAYEY AND COAMO MUNICIPALITIES...

AT 735 AM AST...THE NWS DOPPLER WEATHER RADAR INDICATED THAT THE 
SHOWERS AND THUNDERSTORMS THAT WERE AFFECTING THE FORMER WARNING 
AREA EARLIER THIS MORNING HAD DIMINISHED OR MOVED OFF. ALTHOUGH 
BRIEF SHOWERS WILL LINGER ACROSS THESE AREAS DURING THE NEXT HOUR OR 
SO...NO ADDITIONAL PERSISTENT HEAVY RAINFALL OR NEW FLASH FLOODING 
IS EXPECTED. THEREFORE...THE FLASH FLOOD WARNING WAS ALLOWED TO 
EXPIRE. RESIDENTS AND MOTORISTS ACROSS THESE AREAS SHOULD HOWEVER BE 
ALERT TO PONDING OF WATER ON ROADWAYS AND ALLOW TIME FOR RIVERS AND 
STREAMS TO RETURN TO NORMAL LEVELS. 

LAT...LON 1797 6651 1800 6654 1816 6656 1813 6605
      1837 6590 1824 6574 1795 6606
TIME...MOT...LOC 1140Z 180DEG 0KT 1823 6595

$$

FIGUEROA

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Jul 17, 8:59 AM CDT	Special Marine Warning	JSJ	46 min
Jul 17, 12:14 PM CDT	Flash Flood Warning	JSJ	105 days
Jul 17, 12:28 PM CDT	Special Marine Warning	JSJ	62 min

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; local storm reports from the same archive; radar from the NEXRAD Level II archive.