Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 136, NWS Tampa Bay, FL

August 21, 2001Hillsborough County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Aug 21, 2001, 3:11 PM EDT for Hillsborough County, Florida. It was in force for 34 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 21, 2001, 3:11 PM EDT (19:11 UTC)
Expired
Aug 21, 2001, 3:45 PM EDT
In force
34 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Hillsborough County, FL

What was reported inside it

TimeReportWhereRemark
Aug 21, 3:20 PM EDTHail 2Temple Terrace, FLHen egg to dime sized hail was reported by the Temple Terrace fire department and public from near the intersection of Interstate 75 and State Road 582 (Fletcher Blvd) to near the intersection of Interstates 75 and 4.
Aug 21, 3:25 PM EDTThunderstorm WindTemple Terrace, FLThe Temple Terrace fire department reported that thunderstorm winds tore and lifted away a 16 foot by 30 foot parks and recreation shed, over a six foot fence along the Tampa Bypass Canal, near the intersection of U.S. Highway 301 and Interstate 75. Also, thu

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 7.2 hours before the alert went out and 192 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, Cape Canaveral, FL at 12:00Z on 2001-08-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2741 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, Cape Canaveral, FL at 12:00Z on 2001-08-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
2741 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
657 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
-6 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 21, 6:01 PM EDTSevere Thunderstorm WarningTBWHardee29 min

Nearby

Severe Thunderstorm Warnings in Florida, 2001Every severe thunderstorm warning in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.