Alert archive / Puerto Rico / Flash Flood Warnings in 2011

Flash Flood Warning 126, NWS JSJ

August 24, 2011

NWS JSJ issued this flash flood warning at Aug 24, 2011, 4:35 AM CDT. It was in force for 3 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
Aug 24, 2011, 4:35 AM CDT (09:35 UTC)
Expired
Aug 24, 2011, 7:30 AM CDT
In force
3 hr
Issued by
NWS JSJ
Area
Storm-based polygon
Flood severity
None

The radar

The San Juan radar (TJUA), 42 km from the middle of the area, began a volume at 09:36 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.

119 
WGCA52 TJSJ 240935
FFWSJU
PRC037-053-089-103-119-241230-
/O.NEW.TJSJ.FF.W.0126.110824T0935Z-110824T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
535 AM AST WED AUG 24 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     LUQUILLO
     NAGUABO
     CEIBA
     FAJARDO
     RIO GRANDE

* UNTIL 830 AM AST

* AT 531 AM AST...WEATHER DOPPLER RADAR INDICATED HEAVY SHOWER 
ACTIVITY ACROSS PARTS OF THE WARNED AREA. THIS RAINFALL IN ADDITION 
TO THE RAINFALL THAT HAS ALREADY OCCURRED...WILL RESULT IN RAPID 
RISES ON RIVERS...SMALL STREAMS AND CREEKS. RESIDENTS IN FLOOD PRONE 
AREAS SHOULD MOVE TO HIGHER GROUND IMMEDIATELY AND NEVER TRY TO 
CROSS A FLOODED ROADWAY. 

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 1833 6587 1842 6583 1837 6568 1838 6562
      1822 6560 1818 6574

$$

23

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN
2 follow-up statements
649 
WGCA72 TJSJ 241055
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
655 AM AST WED AUG 24 2011

PRC037-089-103-119-241059-
/O.CAN.TJSJ.FF.W.0126.000000T0000Z-110824T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LUQUILLO PR-NAGUABO PR-CEIBA PR-RIO GRANDE PR-
655 AM AST WED AUG 24 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR RIO 
GRANDE...CEIBA...NAGUABO AND LUQUILLO MUNICIPALITIES...

HEAVY RAIN HAS ENDED.

LAT...LON 1828 6576 1828 6572 1831 6569 1833 6566
      1835 6562 1827 6561 1827 6567 1826 6570
      1827 6575

$$

PRC053-241230-
/O.CON.TJSJ.FF.W.0126.000000T0000Z-110824T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FAJARDO PR-
655 AM AST WED AUG 24 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 AM AST FOR
FAJARDO MUNICIPALITY...

AT 615 AM AST...USGS SENSORS INDICATED THE FAJARDO RIVER OUT OF ITS 
BANKS AT PARAISO IN FAJARDO. FLOODING IS OCCURRING AT THE 
INTERSECTION OF HIGHWAYS 3 AND 53.

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 1828 6576 1828 6572 1831 6569 1833 6566
      1835 6562 1827 6561 1827 6567 1826 6570
      1827 6575

$$

ROSA

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN
496 
WGCA72 TJSJ 241229
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
829 AM AST WED AUG 24 2011

PRC053-241238-
/O.EXP.TJSJ.FF.W.0126.000000T0000Z-110824T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FAJARDO PR-
829 AM AST WED AUG 24 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 830 AM AST FOR FAJARDO
MUNICIPALITY...

DOPPLER RADAR INDICATED THAT THE HEAVY RAIN WHICH AFFECTED THIS AREA
HAD DISSIPATED OR MOVED AWAY. NO SIGNIFICANT ADDITIONAL RAINFALL IS 
EXPECTED ACROSS THESE AREAS AT THIS TIME. 

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.

LAT...LON 1828 6576 1828 6572 1831 6569 1833 6566
      1835 6562 1827 6561 1827 6567 1826 6570
      1827 6575

$$

JJA

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.

IssuedProductOfficeCountiesLasted
Aug 23, 7:59 PM CDTAreal Flood WarningJSJ16 hr
Aug 23, 8:05 PM CDTFlash Flood WarningJSJ3 hr
Aug 23, 8:44 PM CDTSpecial Marine WarningJSJ91 min
Aug 23, 8:47 PM CDTAreal Flood WarningJSJ6 hr
Aug 23, 10:04 PM CDTAreal Flood WarningJSJ6 hr
Aug 23, 10:10 PM CDTAreal Flood WarningJSJ6 hr
Aug 24, 1:05 AM CDTAreal Flood WarningJSJ6 hr
Aug 24, 2:09 AM CDTAreal Flood AdvisoryJSJ2 hr
Aug 24, 3:51 AM CDTAreal Flood WarningJSJ7 hr
Aug 24, 3:56 AM CDTAreal Flood WarningJSJ12 hr
Aug 24, 5:02 AM CDTSpecial Marine WarningJSJ118 min
Aug 24, 9:37 AM CDTAreal Flood AdvisoryJSJ113 min

Nearby

Flash Flood Warnings in Puerto Rico, 2011Every 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.