Alert archive / Florida / Tornado Warnings in 1993

Tornado Warning 28, NWS Tampa Bay, FL

July 12, 1993Pasco County, Florida

NWS Tampa Bay, FL issued this tornado warning at Jul 12, 1993, 3:52 PM EDT for Pasco County, Florida. It was in force for 28 min.

The area

The counties it named.

The facts

Issued
Jul 12, 1993, 3:52 PM EDT (19:52 UTC)
Expired
Jul 12, 1993, 4:20 PM EDT
In force
28 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Pasco County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 7.9 hours before the alert went out and 67 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 1993-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2739 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 1993-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
2739 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
665 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
19 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 121955
TORTBW
FLC101-122020-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL
352 PM EDT MON JUL 12 1993
 
THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  420 PM EDT
FOR PEOPLE......
 
IN WEST CENTRAL FLORIDA
 
   ...CENTRAL PASCO COUNTY
 
 
NATIONAL WEATHER SERVICE RADAR IS INDICATING A POSSIBLE TORNADO IN THE
VICINITY OF STATE ROAD 52 AND US 41 IN CENTRAL PASCO COUNTY.
MOVEMENT IS TO THE NORTHEAST AT LESS THAN 10 MPH.
 
RESIDENTS IN THE AREA SHOULD TAKE COVER IMMEDIATELY.
 
IF YOU SEE A TORNADO... WATERSPOUT... HAIL OR DAMAGING WIND...
CALL THE WEST CENTRAL AND SOUTHWEST FLORIDA SEVERE WEATlHER LINE AT
1-800-282-5584.

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jul 12, 3:09 PM EDT, 43 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY-RUSKIN, FL
310 PM EDT MON JUL 12 1993

7/12/93  1440 EDT       SARASOTA COUNTY; NORTHPORT; ONE INCH HAIL REPORTED
                        BY CITIZEN

7/12/93  1457 EDT       HILLSBOROUGH COUNTY; SEFFNER EAST OF TAMPA; GOLF
                        BALL SIZED HAIL REPORTED BY CITIZEN.

7/12/93  1455 EDT       HILLSBOROUGH COUNTY; MANGO EAST OF TAMPA; 1/4 TO
                        1/2 INCH HAIL REPOR2TED BY CITIZEN.
Local storm report, Jul 12, 3:10 PM EDT, 42 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY-RUSKIN, FL
310 PM EDT MON JUL 12 1993

7/12/93  1440 EDT       SARASOTA COUNTY; NORTHPORT; ONE INCH HAIL REPORTED
                        BY CITIZEN

7/12/93  1457 EDT       HILLSBOROUGH COUNTY; SEFFNER EAST OF TAMPA; GOLF
                        BALL SIZED HAIL REPORTED BY CITIZEN.

7/12/93  1455 EDT       HILLSBOROUGH COUNTY; MANGO EAST OF TAMPA; 1/4 TO
                        1/2 INCH HAIL REPORTED BY CITIZEN.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 8:40 PM EDTSevere Thunderstorm WarningTBWHillsborough65 min
Jul 12, 11:27 AM EDTSevere Thunderstorm WarningTBWHillsborough48 min
Jul 12, 1:12 PM EDTSevere Thunderstorm WarningTBWSarasota33 min
Jul 12, 2:48 PM EDTSevere Thunderstorm WarningTBWHillsborough42 min
Jul 12, 3:18 PM EDTSevere Thunderstorm WarningTBWPasco42 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.