Alert archive / Florida / Tornado Warnings in 2002

Tornado Warning 21, NWS Tallahassee, FL

September 25, 2002Bay County, Walton County, Florida

NWS Tallahassee, FL issued this tornado warning at Sep 25, 2002, 5:49 PM CDT for Bay County, Walton County, Florida. It was in force for 34 days. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 25, 2002, 5:49 PM CDT (22:49 UTC)
Expired
Oct 29, 2002, 12:30 PM CST
In force
34 days
Issued by
NWS Tallahassee, FL
Area
Counties, with a storm outline in the text

Counties Bay 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
Sep 25, 12:30 PM CDTTornado WatchSPC12 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.8 hours before the alert went out and 154 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°0°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 office that day

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

IssuedProductOfficeCountiesLasted
Sep 24, 8:26 PM CDTSpecial Marine WarningTAE2 hr
Sep 25, 3:37 AM CDTSpecial Marine WarningTAE113 min
Sep 25, 5:30 AM CDTSpecial Marine WarningTAE60 min
Sep 25, 4:35 PM CDTSpecial Marine WarningTAE4 hr
Sep 25, 3:35 PM CDTTornado WarningTAEWalton19 days
Sep 25, 4:42 PM CDTTornado WarningTAEWalton34 days
Sep 25, 6:22 PM CDTTornado WarningTAEHolmes, Jackson34 days

Nearby

Tornado Warnings in Florida, 2002Every tornado warning in 2002Tornadoes 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.