Alert archive / Puerto Rico / Flash Flood Warnings in 2012

Flash Flood Warning 13, NWS JSJ

March 29, 2012

NWS JSJ issued this flash flood warning at Mar 29, 2012, 9:33 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
Mar 29, 2012, 9:33 PM CDT (02:33 UTC)
Expired
Mar 30, 2012, 12:30 AM CDT
In force
3 hr
Issued by
NWS JSJ
Area
Storm-based polygon
Flood severity
None

The radar

The San Juan radar (TJUA), 41 km from the middle of the area, began a volume at 02:33 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.

230 
WGCA52 TJSJ 300233
FFWSJU
PRC119-300530-
/O.NEW.TJSJ.FF.W.0013.120330T0233Z-120330T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1033 PM AST THU MAR 29 2012

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITY

  IN PUERTO RICO
     RIO GRANDE

* UNTIL 130 AM AST

* AT 1028 PM AST...WEATHER DOPPLER RADAR INDICATED HEAVY SHOWER 
ACTIVITY ACROSS PORTIONS OF THE WARNED AREA. THIS HAS RESULTED IN 
SIGNIFICANT RISES ON RIO ESPIRITU SANTO AT RIO GRANDE. 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 1842 6582 1841 6578 1834 6582 1834 6584

$$

OMS

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN
1 follow-up statement
243 
WGCA72 TJSJ 300521
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
121 AM AST FRI MAR 30 2012

PRC119-300531-
/O.EXP.TJSJ.FF.W.0013.000000T0000Z-120330T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RIO GRANDE PR-
121 AM AST FRI MAR 30 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 130 AM AST FOR RIO GRANDE
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 1842 6582 1841 6578 1834 6582 1834 6584

$$

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
Mar 29, 7:17 PM CDTAreal Flood AdvisoryJSJ8 hr
Mar 29, 7:32 PM CDTAreal Flood AdvisoryJSJ118 min
Mar 29, 8:38 PM CDTFlash Flood WarningJSJ3 hr
Mar 29, 9:34 PM CDTSpecial Marine WarningJSJ86 min
Mar 29, 10:37 PM CDTSpecial Marine WarningJSJ53 min
Mar 29, 11:27 PM CDTSpecial Marine WarningJSJ93 min
Mar 30, 1:00 AM CDTSpecial Marine WarningJSJ60 min
Mar 30, 3:24 AM CDTAreal Flood AdvisoryJSJ111 min
Mar 30, 7:37 AM CDTAreal Flood AdvisoryJSJ3 hr
Mar 30, 10:03 AM CDTAreal Flood AdvisoryJSJ3 hr
Mar 30, 10:37 AM CDTFlash Flood WarningJSJ6 hr
Mar 30, 10:41 AM CDTAreal Flood AdvisoryJSJ3 hr
Mar 30, 11:35 AM CDTAreal Flood AdvisoryJSJ77 min
Mar 30, 11:53 AM CDTAreal Flood AdvisoryJSJ3 hr
Mar 30, 2:09 PM CDTAreal Flood AdvisoryJSJ118 min
Mar 30, 3:20 PM CDTAreal Flood AdvisoryJSJ3 hr
Mar 30, 3:32 PM CDTAreal Flood AdvisoryJSJ3 hr
Mar 30, 3:56 PM CDTSpecial Marine WarningJSJ94 min
Mar 30, 4:27 PM CDTAreal Flood WarningJSJ7 hr
Mar 30, 5:09 PM CDTSpecial Marine WarningJSJ51 min

Nearby

Flash Flood Warnings in Puerto Rico, 2012Every flash flood warning in 2012

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.