Alert archive / Florida / Tornado Warnings in 1994

Tornado Warning 15, NWS Tampa Bay, FL

September 15, 1994Polk County, Florida

NWS Tampa Bay, FL issued this tornado warning at Sep 15, 1994, 5:40 PM EDT for Polk County, Florida. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
Sep 15, 1994, 5:40 PM EDT (21:40 UTC)
Expired
Sep 15, 1994, 6:15 PM EDT
In force
35 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Polk County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 9.7 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 12:00Z on 1994-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 146 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 1994-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
146 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
678 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
30 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 152140
TORTBW
FLC105-152215-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL
540 PM EDT THU SEP 15 1994
 
THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  615 PM EDT
FOR PEOPLE......
 
IN CENTRAL FLORIDA
 
   ...POLK COUNTY
 
AT 540 PM RADAR INDICATED A POSSIBLE TORNADO BETWEEN BARTOW AND LAKE
WALES NEAR ROUTE 60. THE STORM WAS MOVING TO THE NORTH 25 MbPH.
 
 
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.

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.