Alert archive / Florida / Tornado Warnings in 1997

Tornado Warning 32, NWS Tampa Bay, FL

August 1, 1997Polk County, Florida

NWS Tampa Bay, FL issued this tornado warning at Aug 1, 1997, 1:04 PM EDT for Polk County, Florida. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 1, 1997, 1:04 PM EDT (17:04 UTC)
Expired
Aug 1, 1997, 1:35 PM EDT
In force
31 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, 5.1 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 1997-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2895 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 1997-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
2895 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
600 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
39 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 011704 RRA
TORTBW
FLC105-011735-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
104 PM EDT FRI AUG 1 1997

THE NATIONAL WEATHER SERVICE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 135 PM EDT

FOR PEOPLE IN THE FOLLOWING LOCATION(S)

IN CENTRAL FLORIDA

   ...POLK COUNTY

 
AT 100 PM EDT...A DEVELOPING TORNADO WAS REPORTED BY A SPOTTER 3
MILES NORTHEAST OF FORT MEADE MOVING NORTHEAST AT 10 MPH.
 
FUNNEL CLOUDS HAVE BEEN SIGHTED BY THE PUBLIC. THERE HAS NOT BEEN A
CONFIRMED TORNADO YET BUT CONDITIONS REMAIN FAVORABLE FOR TORNADO
DEVELOPMENT. IF YOU ARE IN THE PATH OF THE STORM...MOVE INSIDE A
STRONG BUILDING NOW! PROTECT YOURSELF...AND STAY AWAY FROM WINDOWS.

Nearby

Tornado Warnings in Florida, 1997Every tornado warning in 1997Tornadoes in 1997

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.