Alert archive / Puerto Rico / Flash Flood Warnings in 2010

Flash Flood Warning 21, NWS JSJ

May 7, 2010

NWS JSJ issued this flash flood warning at May 7, 2010, 2:49 PM CDT. It was in force for 86 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 7, 2010, 2:49 PM CDT (19:49 UTC)
Expired
May 7, 2010, 4:15 PM CDT
In force
86 min
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 19:48 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.

083 
WGCA52 TJSJ 071949
FFWSJU
PRC119-072245-
/O.NEW.TJSJ.FF.W.0021.100507T1949Z-100507T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
349 PM AST FRI MAY 7 2010

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITY

  IN PUERTO RICO
     RIO GRANDE

* UNTIL 645 PM AST

* AT 347 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED 
HEAVY RAINFALL ACROSS NORTHEAST SECTIONS OF PUERTO RICO. THIS 
RAINFALL IS LEADING TO RAPID RISES IN SMALL STREAMS AND 
CREEKS...INCLUDING THE RIO ESPIRITU SANTOS. 

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 1835 6583 1843 6584 1845 6576 1840 6577

$$

EM

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN
1 follow-up statement
969 
WGCA72 TJSJ 072115
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
515 PM AST FRI MAY 7 2010

PRC119-072126-
/O.CAN.TJSJ.FF.W.0021.000000T0000Z-100507T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RIO GRANDE PR-
515 PM AST FRI MAY 7 2010

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED 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.

LAT...LON 1835 6583 1843 6584 1845 6576 1840 6577

$$

ROSA

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
May 7, 2:30 PM CDTAreal Flood AdvisoryJSJ2 hr
May 7, 4:22 PM CDTAreal Flood AdvisoryJSJ113 min
May 7, 5:33 PM CDTAreal Flood AdvisoryJSJ3 hr
May 7, 6:48 PM CDTFlash Flood WarningJSJ3 hr

Nearby

Flash Flood Warnings in Puerto Rico, 2010Every flash flood warning in 2010

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.