Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 68, NWS Tallahassee, FL

June 11, 2001Walton County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jun 11, 2001, 1:03 PM CDT for Walton County, Florida. It was in force for 27 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 11, 2001, 1:03 PM CDT (18:03 UTC)
Expired
Jun 11, 2001, 1:30 PM CDT
In force
27 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

County Walton County, FL

What was reported inside it

TimeReportWhereRemark
Jun 11, 1:20 PM CDTThunderstorm WindSoutheast Portion, FLNumerous trees and power lines down. A mobile home sustained roof damage. Several homes and businesses received minor damage. Homes and businesses were without power along U.S. Highway 98 from County Road 30-A to U.S. Highway 331. Reported by the Walton Cou

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 11, 12:45 PM CDTTornado WatchSPC4 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 6.1 hours before the alert went out and 291 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, Birmingham, AL at 12:00Z on 2001-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1434 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, Birmingham, AL at 12:00Z on 2001-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -47 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
1434 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
457 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-47 m²/s²
0-3 km storm-relative helicity
-22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 2:13 PM CDTTornado WarningTAEFranklin32 min
Jun 11, 5:49 PM CDTTornado WarningTAEJefferson, Madison26 min
Jun 11, 6:34 PM CDTTornado WarningTAEMadison26 min

Nearby

Severe Thunderstorm Warnings in Florida, 2001Every severe thunderstorm warning in 2001

Sources

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