Alert archive / Florida / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 192, NWS Tampa Bay, FL

August 17, 1999Hardee County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Aug 17, 1999, 3:07 PM EDT for Hardee County, Florida. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 17, 1999, 3:07 PM EDT (19:07 UTC)
Expired
Aug 17, 1999, 3:45 PM EDT
In force
38 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Hardee County, FL

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 7.1 hours before the alert went out and 240 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, Miami, FL at 12:00Z on 1999-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2202 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, Miami, FL at 12:00Z on 1999-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 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
2202 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
932 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
13 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 16, 9:03 PM EDTSevere Thunderstorm WarningTBWManatee47 min
Aug 16, 9:25 PM EDTSevere Thunderstorm WarningTBWPinellas45 min
Aug 17, 2:28 PM EDTSevere Thunderstorm WarningTBWHillsborough42 min
Aug 17, 3:13 PM EDTSevere Thunderstorm WarningTBWHillsborough47 min
Aug 17, 3:15 PM EDTSevere Thunderstorm WarningTBWPolk45 min
Aug 17, 3:51 PM EDTSevere Thunderstorm WarningTBWPinellas39 min
Aug 17, 3:58 PM EDTSevere Thunderstorm WarningTBWSarasota32 min

Nearby

Severe Thunderstorm Warnings in Florida, 1999Every severe thunderstorm warning in 1999

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.