Alert archive / Florida / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 152, NWS Tampa Bay, FL

August 24, 1994Polk County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Aug 24, 1994, 4:05 PM EDT for Polk County, Florida. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Aug 24, 1994, 4:05 PM EDT (20:05 UTC)
Expired
Aug 24, 1994, 4:45 PM EDT
In force
40 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Polk County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 8.1 hours before the alert went out and 74 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, Tampa Bay, FL at 12:00Z on 1994-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 790 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, Tampa Bay, FL at 12:00Z on 1994-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.1939Sfc1 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
790 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
1116 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
-19 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 Tampa Bay, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 24, 4:40 PM EDTSevere Thunderstorm WarningTBWDeSoto, Sarasota35 min
Aug 24, 5:02 PM EDTSevere Thunderstorm WarningTBWSarasota58 min
Aug 24, 5:10 PM EDTSevere Thunderstorm WarningTBWHillsborough65 min

Nearby

Severe Thunderstorm Warnings in Florida, 1994Every severe thunderstorm warning in 1994

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.