Alert archive / Florida / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 87, NWS Tallahassee, FL

December 1, 1996Walton County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Dec 1, 1996, 5:33 AM CST for Walton County, Florida. It was in force for 42 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
Dec 1, 1996, 5:33 AM CST (11:33 UTC)
Expired
Dec 1, 1996, 6:15 AM CST
In force
42 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

County Walton County, FL

The radar

The Eglin Afb radar (KEVX), 25 km from the middle of the area, began a volume at 11:33 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Dec 1, 5:40 AM CSTThunderstorm WindCountywide, FL

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 nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 11.6 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 00:00Z on 1996-12-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 53 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 1996-12-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 288 square meters per square second.1939587897117Sfc1 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
53 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
521 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
288 m²/s²
0-3 km storm-relative helicity
363 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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
Dec 1, 6:02 AM CSTSevere Thunderstorm WarningTAEBay, Washington43 min
Dec 1, 6:02 AM CSTSevere Thunderstorm WarningTAEHolmes43 min
Dec 1, 10:32 AM CSTSevere Thunderstorm WarningTAEDixie, Taylor43 min
Dec 1, 11:15 AM CSTSevere Thunderstorm WarningTAEDixie60 min
Dec 1, 5:45 AM CSTSevere Thunderstorm WarningTAECalhoun, Randolph, Terrell45 min
Dec 1, 5:45 AM CSTSevere Thunderstorm WarningTAEClay, Early45 min
Dec 1, 5:56 AM CSTSevere Thunderstorm WarningTAEMiller, Seminole34 min
Dec 1, 6:10 AM CSTSevere Thunderstorm WarningTAEBaker, Dougherty50 min
Dec 1, 6:10 AM CSTSevere Thunderstorm WarningTAELee50 min
Dec 1, 6:55 AM CSTSevere Thunderstorm WarningTAETurner, Worth50 min
Dec 1, 5:09 AM CSTSevere Thunderstorm WarningTAEGeneva, Houston51 min

Nearby

Severe Thunderstorm Warnings in Florida, 1996Every severe thunderstorm warning in 1996

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; radar from the NEXRAD Level II archive.