Alert archive / Florida / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 172, NWS Tampa Bay, FL

November 2, 1997Hardee County, Polk County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Nov 2, 1997, 2:36 AM EST for Hardee County, Polk County, Florida. It was in force for 54 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
Nov 2, 1997, 2:36 AM EST (07:36 UTC)
Expired
Nov 2, 1997, 3:30 AM EST
In force
54 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

Counties Hardee County, FL, Polk County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 00:00Z, 7.6 hours before the alert went out and 64 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 00:00Z on 1997-11-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1350 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 00:00Z on 1997-11-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 square meters per square second.19395878Sfc1 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
1350 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
748 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
160 m²/s²
Significant tornado parameter
1.1
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
Nov 2, 1:37 AM ESTSevere Thunderstorm WarningTBWHardee, Polk53 min
Nov 2, 6:57 AM ESTTornado WarningTBWCharlotte33 min
Nov 2, 7:02 AM ESTTornado WarningTBWDeSoto48 min
Nov 2, 8:47 AM ESTTornado WarningTBWCharlotte33 min

Nearby

Severe Thunderstorm Warnings in Florida, 1997Every severe thunderstorm warning in 1997

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.