Alert archive / Puerto Rico / Flash Flood Warnings in 2011

Flash Flood Warning 54, NWS JSJ

June 7, 2011

NWS JSJ issued this flash flood warning at Jun 7, 2011, 6:27 AM CDT. 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: Jun 7, 2011, 6:27 AM CDT (11:27 UTC)
Expired: Jun 7, 2011, 12:15 PM CDT
In force: 6 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 20 km from the middle of the area, began a volume at 11:28 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.

979 
WGCA52 TJSJ 071127
FFWSJU
PRC009-041-045-105-071415-
/O.NEW.TJSJ.FF.W.0054.110607T1127Z-110607T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
727 AM AST TUE JUN 7 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     CIDRA
     COMERIO
     AIBONITO
     NARANJITO

* UNTIL 1015 AM AST

* AT 718 AM AST...WEATHER DOPPLER RADAR INDICATED HEAVY SHOWER AND 
THUNDERSTORM ACTIVITY OVER THE WARNED AREA. THIS WILL GENERATE A 
VERY FAST RISE TO FLOOD STAGE ON THE RIO LA PLATA AT AIBONITO AND
COMERIO. ALSO EXPECT RAPID RISES ON THE SMALLER STREAMS AND 
TRIBUTARIES IN THE WARNED AREA. RESIDENTS IN FLOOD PRONE AREAS 
SHOULD MOVE TO HIGHER GROUND IMMEDIATELY AND NEVER TRY TO CROSS A 
FLOODED ROADWAY. OVER 2 INCHES OF RAIN IS LIKELY THROUGH THIS 10:15 
AM AST.

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 1813 6632 1816 6632 1817 6625 1830 6624
      1830 6621 1826 6618 1815 6619 1807 6625

$$

OMS/AAS

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

2 follow-up statements

247 
WGCA52 TJSJ 071413
FFWSJU
PRC009-041-045-105-071715-
/O.EXT.TJSJ.FF.W.0054.000000T0000Z-110607T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1013 AM AST TUE JUN 7 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     CIDRA
     COMERIO
     AIBONITO
     NARANJITO

* UNTIL 115 PM AST

* AT 1006 AM AST...USGS RIVER SENSOR ON RIO DE LA PLATA AT COMERIO 
INDICATES THAT THE RIVER IS SLOWLY RECEDING. THE CURRENT RIVER STAGE 
IS 14.02 FEET AND FALLING...FLOOD STAGE IS 11.0 FEET. DUE TO THE 
ELEVATED RIVER LEVEL...COMBINED WITH THE POTENTIAL FOR SIGNIFICANT 
RAINFALL TODAY...THE FLASH FLOOD WARNING HAS BEEN EXTENDED THROUGH 
AT LEAST 1:15 PM AST. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 1813 6632 1816 6632 1817 6625 1830 6624
      1830 6621 1826 6618 1815 6619 1807 6625

$$

OMS

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

898 
WGCA72 TJSJ 071708
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
108 PM AST TUE JUN 7 2011

PRC009-041-045-105-071716-
/O.EXP.TJSJ.FF.W.0054.000000T0000Z-110607T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CIDRA PR-COMERIO PR-AIBONITO PR-NARANJITO PR-
108 PM AST TUE JUN 7 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 115 PM AST FOR NARANJITO...
AIBONITO...COMERIO AND CIDRA MUNICIPALITIES...

USGS RIVER SENSOR ON RIO DE LA PLATA AT COMERIO INDICATES THAT THE 
RIVER IS SLOWLY RECEDING. THE CURRENT RIVER STAGE IS 10.47 FEET AND 
FALLING. RESIDENTS AND MOTORISTS ACROSS THESE AREAS SHOULD HOWEVER 
BE ALERT TO PONDING OF WATER ON ROADWAYS AND ALLOW TIME FOR 
STREAMS...CREEKS AND RIVERS TO RETURN TO NORMAL LEVELS. ADDITIONAL 
RAINFALL IS POSSIBLE...AS A RESULT A FLASH FLOOD WATCH REMAINS IN 
EFFECT THROUGH MIDNIGHT.


LAT...LON 1813 6632 1816 6632 1817 6625 1830 6624
      1830 6621 1826 6618 1815 6619 1807 6625

$$

OMS

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
Jun 6, 7:40 PM CDT	Flash Flood Warning	JSJ	3 hr
Jun 6, 7:41 PM CDT	Flash Flood Warning	JSJ	3 hr
Jun 7, 12:44 AM CDT	Areal Flood Advisory	JSJ	6 hr
Jun 7, 1:07 AM CDT	Areal Flood Advisory	JSJ	8 hr
Jun 7, 7:32 AM CDT	Areal Flood Warning	JSJ	10 hr
Jun 7, 8:12 AM CDT	Flash Flood Warning	JSJ	3 hr
Jun 7, 8:25 AM CDT	Areal Flood Advisory	JSJ	6 hr
Jun 7, 8:44 AM CDT	Flash Flood Warning	JSJ	6 hr
Jun 7, 8:52 AM CDT	Areal Flood Warning	JSJ	8 hr
Jun 7, 9:34 AM CDT	Flash Flood Warning	JSJ	3 hr
Jun 7, 1:32 PM CDT	Areal Flood Advisory	JSJ	118 min

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.