Alert archive / Florida / Tornado Warnings in 1992

Tornado Warning 5, NWS Tampa Bay, FL

July 12, 1992Pinellas County, Florida

NWS Tampa Bay, FL issued this tornado warning at Jul 12, 1992, 11:57 AM EDT for Pinellas County, Florida. It was in force for 33 min.

The area

The counties it named.

The facts

Issued
Jul 12, 1992, 11:57 AM EDT (15:57 UTC)
Expired
Jul 12, 1992, 12:30 PM EDT
In force
33 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Pinellas County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 4.0 hours before the alert went out and 40 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 1992-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2307 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 1992-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 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
2307 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
687 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
19 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTBW 121557
TORTBW
FLC103-121630-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL
1157 AM EDT SUN JUL 12 1992
 
THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1230 PM EDT
FOR PEOPLE...
 
IN WEST CENTRAL FLORIDA
 
   ...NORTHERN PINELLAS COUNTY
 
AND ADJACENT COASTAL WATERS
INCLUDING THE BAY AND INLAND WATERS
 
A TORNADO WAS REPORTED BY THE PUBLIC NEAR U.S. 19 AND BELLAIR
ROAD IN CLEARWATER. MOVEMENT UNDETERMINED.
 
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.
ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING OR GET
INTO A DITCH OR CULVERT.
 
IF YOU SEE A TORNADO... WATERSPOUT... HAIL OR DAMAGING WIND...
CALL THE WEST CENTRAL AND SOUTHWEST FLORIDA SEVERE WEATHER LINE AT
1-800-282-5584.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 3:00 PM EDTSevere Thunderstorm WarningTBWLevy60 min
Jul 12, 4:23 PM EDTSevere Thunderstorm WarningTBWManatee52 min

Nearby

Tornado Warnings in Florida, 1992Every tornado warning in 1992Tornadoes in 1992

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.