Alert archive / Florida / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 21, NWS Tallahassee, FL

April 29, 2004Holmes County, Walton County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Apr 29, 2004, 9:14 PM CDT for Holmes County, Walton County, Florida. It was in force for 46 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
Apr 29, 2004, 9:14 PM CDT (02:14 UTC)
Expired
Apr 29, 2004, 10:00 PM CDT
In force
46 min
Issued by
NWS Tallahassee, FL
Area
Counties, with a storm outline in the text

Counties Holmes County, FL, Walton County, FL

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 29, 8:55 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 2.2 hours before the alert went out and 161 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 00:00Z on 2004-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 362 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2004-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -40 square meters per square second.19395878Sfc1 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
362 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1286 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-40 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

355 
WUUS52 KTAE 300214
SVRTLH
FLC059-131-300300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
914 PM CDT THU APR 29 2004

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HOLMES COUNTY IN THE PANHANDLE OF FLORIDA
  CENTRAL WALTON COUNTY IN THE PANHANDLE OF FLORIDA

* UNTIL 1000 PM CDT

* AT 912 PM CDT DOPPLER RADAR INDICATED A SEVERE  THUNDERSTORM WITH
  LARGE HAIL AND DAMAGING WINDS 3 MILES SOUTH OF PINEY GROVE...OR
  ABOUT 3 MILES NORTH OF DE FUNIAK SPRINGS...MOVING EAST AT 30 MPH.
  MARBLE SIZE HAIL HAS BEEN REPORTED WITH THIS STORM.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  PROSPERITY...ARRANT SETTLEMENT BY 920 PM CDT...
  HICKORY HILL...BAKER SETTLEMENT BY 925 PM CDT...
  CERRO GORDO...WESTVILLE BY 930 PM CDT...
  GRITNEY...IZAGORA BY 935 PM CDT...
  PITTMAN BY 940 PM CDT...

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE WARNING. REMAIN CALM...BUT BE ALERT FOR RAPIDLY
CHANGING CONDITIONS.

&

LAT...LON 3085 8617 3067 8609 3074 8587 3082 8579
          3078 8563 3097 8569

$$

18-WOOL

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 29, 8:32 PM CDTSevere Thunderstorm WarningTAEWalton43 min
Apr 29, 9:44 PM CDTTornado WarningTAEHolmes, Washington31 min
Apr 30, 6:38 AM CDTSevere Thunderstorm WarningTAETaylor22 min
Apr 30, 12:10 PM CDTSpecial Marine WarningTAE2 hr

Nearby

Severe Thunderstorm Warnings in Florida, 2004Every severe thunderstorm warning in 2004

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.