Alert archive / Florida / Tornado Warnings in 1990

Tornado Warning 7, NWS Tampa Bay, FL

July 23, 1990Hillsborough County, Florida

NWS Tampa Bay, FL issued this tornado warning at Jul 23, 1990, 2:17 PM EDT for Hillsborough County, Florida. It was in force for 23 min.

The area

The counties it named.

The facts

Issued
Jul 23, 1990, 2:17 PM EDT (18:17 UTC)
Expired
Jul 23, 1990, 2:40 PM EDT
In force
23 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Hillsborough County, FL

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 6.3 hours before the alert went out and 23 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 1990-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2289 joules per kilogram.LCLEL10008507005003002001001 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 1990-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 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
2289 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
656 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
10 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 231820
TORTBW
FLC057-231840-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL
217 PM EDT MON JUL 23 1990
 
THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  240 PM EDT
FOR PEOPLE...
 
IN WEST CENTRAL FLORIDA
 
   ...EAST CENTRAL HILLSBOROUGH COUNTY
 
AT 214PM EDT A PUBLIC REPORT OF A FUNNEL CLOUD WAS SIGHTED NEAR
RIVERVIEW AROUND BOYETTE AND MCMULLEN ROAD. IF THREATENING CONDITIONS
ARE SIGHTED SEEK SHELTER IMMEDIATELY.

Nearby

Tornado Warnings in Florida, 1990Every tornado warning in 1990Tornadoes in 1990

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.