Alert archive / Florida / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 129, NWS Tampa Bay, FL

July 28, 1994Polk County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jul 28, 1994, 2:37 PM EDT for Polk County, Florida. It was in force for 68 min.

The area

The counties it named.

The facts

Issued
Jul 28, 1994, 2:37 PM EDT (18:37 UTC)
Expired
Jul 28, 1994, 3:45 PM EDT
In force
68 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, 6.6 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 1994-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2446 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 1994-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
2446 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
657 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
104 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
Jul 28, 11:53 AM EDTSevere Thunderstorm WarningTBWPasco37 min
Jul 28, 12:12 PM EDTSevere Thunderstorm WarningTBWLevy63 min
Jul 28, 1:06 PM EDTSevere Thunderstorm WarningTBWPolk54 min
Jul 28, 2:22 PM EDTSevere Thunderstorm WarningTBWPasco68 min
Jul 28, 2:32 PM EDTSevere Thunderstorm WarningTBWPinellas58 min
Jul 28, 3:35 PM EDTSevere Thunderstorm WarningTBWPolk55 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.