Alert archive / Puerto Rico / Flash Flood Warnings in 2011

Flash Flood Warning 77, NWS JSJ

July 14, 2011

NWS JSJ issued this flash flood warning at Jul 14, 2011, 2:27 PM CDT. It was in force for 2 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
Jul 14, 2011, 2:27 PM CDT (19:27 UTC)
Expired
Jul 14, 2011, 4:30 PM CDT
In force
2 hr
Issued by
NWS JSJ
Area
Storm-based polygon
Flood severity
None

The radar

The San Juan radar (TJUA), 37 km from the middle of the area, began a volume at 19:30 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.

097 
WGCA52 TJSJ 141927
FFWSJU
PRC031-087-127-142130-
/O.NEW.TJSJ.FF.W.0077.110714T1927Z-110714T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     SAN JUAN
     CAROLINA
     LOIZA

* UNTIL 530 PM AST

* AT 325 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SERIES OF STRONG THUNDERSTORMS WITH VERY HEAVY RAIN...GUSTY WINDS UP 
TO 30 MPH AND RAIN RATES OF 2 TO 3 INCHES PER HOUR. THESE STRONG 
THUNDERSTORMS WILL CONTINUE TO PRODUCE VERY HEAVY RAINFALL OVER SAN 
SEBASTIAN DURING THE NEXT HOUR OR TWO. ADDITIONAL RAINFALL OF 2 TO 3 
INCHES ARE POSSIBLE ACROSS SECTIONS OF SAN SEBASTIAN.

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF 
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.

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 1846 6607 1846 6604 1845 6603 1846 6600
      1845 6590 1837 6593 1840 6605 1848 6610
      1848 6608

$$

EM

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN
1 follow-up statement
063 
WGCA72 TJSJ 142126
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
526 PM AST THU JUL 14 2011

PRC031-087-127-142136-
/O.EXP.TJSJ.FF.W.0077.000000T0000Z-110714T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAROLINA PR-SAN JUAN PR-LOIZA PR-
526 PM AST THU JUL 14 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 530 PM AST FOR LOIZA...SAN
JUAN AND CAROLINA MUNICIPALITIES...

LAT...LON 1846 6607 1846 6604 1845 6603 1846 6600
      1845 6590 1837 6593 1840 6605 1848 6610
      1848 6608

$$

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
Jul 13, 9:32 PM CDTAreal Flood AdvisoryJSJ3 hr
Jul 14, 12:34 AM CDTAreal Flood AdvisoryJSJ3 hr
Jul 14, 12:44 AM CDTAreal Flood AdvisoryJSJ3 hr
Jul 14, 11:10 AM CDTAreal Flood AdvisoryJSJ3 hr
Jul 14, 11:25 AM CDTAreal Flood AdvisoryJSJ4 hr
Jul 14, 12:11 PM CDTAreal Flood AdvisoryJSJ4 hr
Jul 14, 1:15 PM CDTSpecial Marine WarningJSJ60 min
Jul 14, 1:47 PM CDTAreal Flood AdvisoryJSJ3 hr
Jul 14, 2:13 PM CDTAreal Flood AdvisoryJSJ3 hr
Jul 14, 2:30 PM CDTFlash Flood WarningJSJ2 hr
Jul 14, 2:40 PM CDTFlash Flood WarningJSJ3 hr
Jul 14, 3:04 PM CDTFlash Flood WarningJSJ3 hr
Jul 14, 3:16 PM CDTAreal Flood AdvisoryJSJ3 hr
Jul 14, 5:32 PM CDTAreal Flood WarningJSJ3 hr

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.