Alert archive / Puerto Rico / Flash Flood Warnings in 2011

Flash Flood Warning 1, NWS JSJ

April 14, 2011

NWS JSJ issued this flash flood warning at Apr 14, 2011, 1:44 PM 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
Apr 14, 2011, 1:44 PM CDT (18:44 UTC)
Expired
Apr 14, 2011, 4:45 PM CDT
In force
3 hr
Issued by
NWS JSJ
Area
Storm-based polygon
Flood severity
None

The radar

The San Juan radar (TJUA), 91 km from the middle of the area, began a volume at 18:47 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.

547 
WGCA52 TJSJ 141844
FFWSJU
PRC081-131-142145-
/O.NEW.TJSJ.FF.W.0001.110414T1844Z-110414T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
244 PM AST THU APR 14 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     SAN SEBASTIAN
     LARES

* UNTIL 545 PM AST

* AT 238 PM AST...DOPPLER RADAR INDICATED VERY HEAVY RAIN OVER LARES 
AND SAN SEBASTIAN. THESE SHOWERS ARE NEARLY STATIONARY PRODUCING 
RAINFALL OF 2 INCHES PER HOUR. ALSO...THE U.S.G.S RIVER SENSOR 
INDICATED RIO GUAJATACA IN LARES WAS OVER FLOOD STAGE AND CONTINUING 
RISING. 

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 1838 6696 1835 6683 1824 6684 1827 6697

$$

CASTRO
ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN
1 follow-up statement
987 
WGCA72 TJSJ 142139
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
539 PM AST THU APR 14 2011

PRC081-131-142148-
/O.EXP.TJSJ.FF.W.0001.000000T0000Z-110414T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN SEBASTIAN PR-LARES PR-
539 PM AST THU APR 14 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 545 PM AST FOR LARES AND
SAN SEBASTIAN MUNICIPALITIES...

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.

LAT...LON 1838 6696 1835 6683 1824 6684 1827 6697

$$

MARTINEZ

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
Apr 14, 12:09 PM CDTAreal Flood AdvisoryJSJ3 hr
Apr 14, 12:52 PM CDTAreal Flood AdvisoryJSJ3 hr
Apr 14, 1:49 PM CDTAreal Flood AdvisoryJSJ2 hr
Apr 14, 2:36 PM CDTAreal Flood AdvisoryJSJ114 min
Apr 14, 3:23 PM CDTAreal Flood AdvisoryJSJ104 min
Apr 14, 3:32 PM CDTAreal Flood AdvisoryJSJ96 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.