Alert archive / Florida / Tornado Warnings in 1994

Tornado Warning 13, NWS Tampa Bay, FL

August 10, 1994Hillsborough County, Florida

NWS Tampa Bay, FL issued this tornado warning at Aug 10, 1994, 5:31 PM EDT for Hillsborough County, Florida. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Aug 10, 1994, 5:31 PM EDT (21:31 UTC)
Expired
Aug 10, 1994, 6:15 PM EDT
In force
44 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Hillsborough County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 9.5 hours before the alert went out and 23 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 1994-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1462 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 1994-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 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
1462 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
742 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KTBW 102133
TORTBW
FLC057-102215-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL
531 PM EDT WED AUG 10 1994
 
THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  615 PM EDT
FOR PEOPLE......
 
IN WEST CENTRAL FLORIDA
 
   ...HILLSBOROUGH COUNTY
 
 
 
A TORNADO WAS DETECTED BY DOPPLER RADAR NEAR US 301 AND INTERSTATE 4
MOVING TOWARDS THE WEST AT 15 MPH.
 
IF YOU ARE IN THE PATH OF A TORNADO MOVE TO A REINFORCED SHELTER
TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR. AVOID WINDOWS.
IF YOU ARE CAUGHT IN THE OPEN...GET INTO A DITCH OR CULVERT.
 
THIS IS A DANGEROUS STORM. TAKE COVER IMMEDIATELY!
 
THE NWS RUSKIN OFFICE REQUESTS  THE SKYWARN UNITS IN HILLSBOROUGH
COUNTY BE ACTIVATED. ALL SKYWARN UNITS IN WEST CENTRAL FLORIDA
SHOULD BE ALERT TO THE LOCAL WEATHER AND FORWARD SIGNIFICANT
WEATHER REPORTS TO THE RUSKIN OFFICE.

The office that day

Everything else NWS Tampa Bay, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 10, 3:13 PM EDTSevere Thunderstorm WarningTBWCharlotte, Sarasota32 min
Aug 10, 3:57 PM EDTSevere Thunderstorm WarningTBWManatee, Sarasota63 min
Aug 10, 5:04 PM EDTSevere Thunderstorm WarningTBWHillsborough, Pinellas56 min

Nearby

Tornado Warnings in Florida, 1994Every tornado warning in 1994Tornadoes 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.