Alert archive / Florida / Flash Flood Warnings in 2002

Flash Flood Warning 7, NWS Mobile, AL

September 25, 2002Okaloosa County, Florida

NWS Mobile, AL issued this flash flood warning at Sep 25, 2002, 5:18 PM CDT for Okaloosa County, Florida. It was in force for 117 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: Sep 25, 2002, 5:18 PM CDT (22:18 UTC)
Expired: Sep 25, 2002, 7:15 PM CDT
In force: 117 min
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, 10.3 hours before the alert went out and 217 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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 252218
FFWMOB
FLC091-260015-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
516 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...CRESTVIEW

* UNTIL 715 PM CDT

* AT 512 PM CDT...THE PUBLIC REPORTED STREET FLOODING ALONG HIGHWAY  
  98 NEAR MARY ESTHER.  OTHER AREAS OF STREET FLOODING IS LIKELY     
  OVER THE NEXT COUPLE OF HOURS AS A LARGE AREA OF HEAVY RAINFALL    
  WILL CONTINUE TO MOVE NORTHEAST ACROSS THE COUNTY.  

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

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 3041 8640 3038 8678 3099 8676 3099 8639

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 25, 2:08 PM CDT	Tornado Warning	MOB	Okaloosa, Santa Rosa	3 hr
Sep 25, 3:18 PM CDT	Tornado Warning	MOB	Santa Rosa	3 hr
Sep 25, 3:57 PM CDT	Tornado Warning	MOB	Okaloosa	3 hr
Sep 25, 4:07 PM CDT	Tornado Warning	MOB	Okaloosa, Santa Rosa	3 hr
Sep 25, 4:28 PM CDT	Tornado Warning	MOB	Okaloosa	4 hr
Sep 25, 5:16 PM CDT	Tornado Warning	MOB	Okaloosa	14 hr
Sep 25, 6:28 PM CDT	Tornado Warning	MOB	Okaloosa	14 hr
Sep 25, 6:59 PM CDT	Flash Flood Warning	MOB	Okaloosa	2 hr

Nearby

Flash Flood Warnings in Florida, 2002 Every 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.