Alert archive / Puerto Rico / Flash Flood Warnings in 2011

Flash Flood Warning 88, NWS JSJ

August 3, 2011

NWS JSJ issued this flash flood warning at Aug 3, 2011, 4:57 AM CDT. It was in force for 4 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 3, 2011, 4:57 AM CDT (09:57 UTC)
Expired: Aug 3, 2011, 9:00 AM CDT
In force: 4 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 18 km from the middle of the area, began a volume at 10:01 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.

663 
WGCA52 TJSJ 030957
FFWSJU
PRC069-077-085-095-103-129-151-031400-
/O.NEW.TJSJ.FF.W.0088.110803T0957Z-110803T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
557 AM AST WED AUG 3 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     JUNCOS
     SAN LORENZO
     LAS PIEDRAS
     MAUNABO
     NAGUABO
     HUMACAO
     YABUCOA

* UNTIL 1000 AM AST

* AT 551 AM AST...WEATHER DOPPLER RADAR INDICATED SHOWERS AND 
THUNDERSTORMS ACROSS THE WARNED AREA. ADDITIONAL SHOWERS AND 
THUNDERSTORMS...SOME OF THEM WITH EMBEDDED HEAVY DOWNPOURS...ARE 
EXPECTED THROUGH THE EARLY MORNING HOURS. THESE AREAS OF SHOWERS AND 
THUNDERSTORMS HAVE THE CAPABILITY OF PRODUCING MODERATE TO HEAVY 
RAINFALL WHICH WILL LEAD TO RAPID RISES ON RIVERS...STREAMS AND CREEKS 
THROUGH AT LEAST 10:00 AM 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 1815 6603 1818 6602 1829 6581 1818 6574
      1802 6584 1798 6592

$$

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
Aug 3, 1:19 AM CDT	Areal Flood Advisory	JSJ	7 hr
Aug 3, 1:40 AM CDT	Flash Flood Warning	JSJ	6 hr
Aug 3, 3:56 AM CDT	Areal Flood Advisory	JSJ	11 min
Aug 3, 4:02 AM CDT	Flash Flood Warning	JSJ	5 hr
Aug 3, 4:37 AM CDT	Flash Flood Watch	JSJ	34 hr
Aug 3, 5:20 AM CDT	Special Marine Warning	JSJ	55 min
Aug 3, 6:17 AM CDT	Areal Flood Warning	JSJ	12 hr
Aug 3, 6:38 AM CDT	Areal Flood Warning	JSJ	12 hr
Aug 3, 7:11 AM CDT	Areal Flood Advisory	JSJ	3 hr
Aug 3, 7:28 AM CDT	Flash Flood Warning	JSJ	3 hr
Aug 3, 8:20 AM CDT	Flash Flood Warning	JSJ	5 hr
Aug 3, 8:54 AM CDT	Areal Flood Advisory	JSJ	5 hr
Aug 3, 9:02 AM CDT	Flash Flood Warning	JSJ	3 hr
Aug 3, 9:40 AM CDT	Flash Flood Warning	JSJ	5 hr
Aug 3, 9:52 AM CDT	Severe Thunderstorm Warning	JSJ	53 min
Aug 3, 10:27 AM CDT	Flash Flood Warning	JSJ	3 hr
Aug 3, 11:26 AM CDT	Areal Flood Advisory	JSJ	3 hr
Aug 3, 12:12 PM CDT	Areal Flood Advisory	JSJ	3 hr
Aug 3, 12:19 PM CDT	Small Craft Advisory	JSJ	31 hr
Aug 3, 1:02 PM CDT	Special Marine Warning	JSJ	58 min
Aug 3, 2:29 PM CDT	Flash Flood Warning	JSJ	6 hr
Aug 3, 4:32 PM CDT	Areal Flood Advisory	JSJ	5 hr
Aug 3, 6:30 PM CDT	Areal Flood Warning	JSJ	3 hr

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.