Alert archive / Florida / Flash Flood Warnings in 2002

Flash Flood Warning 8, NWS Mobile, AL

September 25, 2002Okaloosa County, Florida

NWS Mobile, AL issued this flash flood warning at Sep 25, 2002, 6:59 PM CDT for Okaloosa County, Florida. 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
Sep 25, 2002, 6:59 PM CDT (23:59 UTC)
Expired
Sep 25, 2002, 9:15 PM CDT
In force
2 hr
Issued by
NWS Mobile, AL
Area
Counties, with a storm outline in the text

County Okaloosa County, FL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 12.0 hours before the alert went out and 224 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 12:00Z on 2002-09-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 307 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2002-09-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 207 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
307 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
561 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
207 m²/s²
0-3 km storm-relative helicity
247 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS54 KMOB 252359
FFWMOB
FLC091-260215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
659 PM CDT WED SEP 25 2002

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  OKALOOSA COUNTY IN NORTHWEST FLORIDA
  THIS INCLUDES THE CITIES OF...FORT WALTON BEACH...DESTIN...
  CRESTVIEW

* UNTIL 915 PM CDT

* AT 651 PM CDT...OKALOOSA COUNTY EMERGENCY MANAGEMENT REPORTED THAT 
  FLOODING IS BECOMING MORE WIDESPEARD OVER PARTS OF OKALOOSA        
  COUNTY...ESPECIALLY OVER THE SOUTHERN PORTION OF THE               
  COUNTY.  RADAR ESTIMATES THAT 2 TO 3 INCHES OF RAINFALL HAS        
  OCCURRED OVER THE CENTRAL PORTION OF THE COUNTY OVER THE PAST      
  SEVERAL HOURS...AND INDICATIONS ARE THAT AN ADDITIONAL 1 TO 2      
  INCHES WILL LIKELY OCCUR DURING THE NEXT HOUR OR SO AS MORE HEAVY  
  RAINFALL MOVES INLAND FROM THE GULF OF MEXICO.                 

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.  DONT DRIVE 
INTO AREAS WHERE WATER COVERS THE ROADWAY.

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. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
MOBILE.

LAT...LON 3042 8677 3038 8641 3096 8641 3098 8678

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 25, 2:08 PM CDTTornado WarningMOBOkaloosa, Santa Rosa3 hr
Sep 25, 3:18 PM CDTTornado WarningMOBSanta Rosa3 hr
Sep 25, 3:57 PM CDTTornado WarningMOBOkaloosa3 hr
Sep 25, 4:07 PM CDTTornado WarningMOBOkaloosa, Santa Rosa3 hr
Sep 25, 4:28 PM CDTTornado WarningMOBOkaloosa4 hr
Sep 25, 5:16 PM CDTTornado WarningMOBOkaloosa14 hr
Sep 25, 5:18 PM CDTFlash Flood WarningMOBOkaloosa117 min
Sep 25, 6:28 PM CDTTornado WarningMOBOkaloosa14 hr

Nearby

Flash Flood Warnings in Florida, 2002Every flash flood warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.