Alert archive / Florida / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 32, NWS Tampa Bay, FL

April 30, 19964 counties in Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Apr 30, 1996, 9:15 AM EDT for 4 counties in Florida. It was in force for 60 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
Apr 30, 1996, 9:15 AM EDT (13:15 UTC)
Expired
Apr 30, 1996, 10:15 AM EDT
In force
60 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

Counties DeSoto County, FL, Hardee County, FL, Manatee County, FL, Polk County, FL

The radar

The Tampa radar (KTBW), 52 km from the middle of the area, began a volume at 13:18 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.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 1.3 hours before the alert went out and 52 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 1996-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1059 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 1996-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 225 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
1059 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
541 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
225 m²/s²
0-3 km storm-relative helicity
299 m²/s²
Significant tornado parameter
0.9
Supercell composite
5.1

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
Apr 30, 6:07 AM EDTSevere Thunderstorm WarningTBWPinellas53 min
Apr 30, 7:06 AM EDTSevere Thunderstorm WarningTBWPasco, Pinellas69 min
Apr 30, 7:43 AM EDTSevere Thunderstorm WarningTBWHillsborough62 min
Apr 30, 7:52 AM EDTTornado WarningTBWHardee, Polk68 min
Apr 30, 8:08 AM EDTSevere Thunderstorm WarningTBWHernando, Sumter52 min
Apr 30, 9:04 AM EDTTornado WarningTBWPolk41 min
Apr 30, 12:41 PM EDTSevere Thunderstorm WarningTBWLee64 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.