Alert archive / Florida / Tornado Warnings in 1993

Tornado Warning 4, NWS Tampa Bay, FL

March 3, 1993Polk County, Florida

NWS Tampa Bay, FL issued this tornado warning at Mar 3, 1993, 11:01 PM EST for Polk County, Florida. It was in force for 29 min.

The area

The counties it named.

The facts

Issued
Mar 3, 1993, 11:01 PM EST (04:01 UTC)
Expired
Mar 3, 1993, 11:30 PM EST
In force
29 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Polk County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 00:00Z, 4.0 hours before the alert went out and 74 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 1993-03-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 476 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 1993-03-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 368 square meters per square second.1939587897117Sfc1 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
476 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
760 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
368 m²/s²
0-3 km storm-relative helicity
406 m²/s²
Significant tornado parameter
0.9
Supercell composite
2.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTBW 040402
TORTBW
FLC105-040430-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL
1101 PM EST WED MAR 3 1993
 
THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1130 PM EST
FOR PEOPLE......
 
IN CENTRAL FLORIDA
 
   ...POLK COUNTY
 
 
A TORNADO WAS INDICATED BY RADAR NORTH OF LAKELAND. THE
TORNADO WAS MOVING TO THE NORTHEAST AT 50 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!
 
IF YOU SEE A TORNADO... 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
Mar 3, 8:54 PM ESTSevere Thunderstorm WarningTBWPinellas66 min
Mar 3, 9:24 PM ESTSevere Thunderstorm WarningTBWHillsborough, Manatee66 min
Mar 3, 9:52 PM ESTSevere Thunderstorm WarningTBWPasco68 min
Mar 3, 10:33 PM ESTSevere Thunderstorm WarningTBWHillsborough, Manatee, Sarasota57 min
Mar 3, 11:29 PM ESTSevere Thunderstorm WarningTBWDeSoto61 min
Mar 3, 11:41 PM ESTSevere Thunderstorm WarningTBWPolk49 min

Nearby

Tornado Warnings in Florida, 1993Every tornado warning in 1993Tornadoes in 1993

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.