Alert archive / Florida / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 39, NWS Tallahassee, FL

June 29, 1993Franklin County, Gulf County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jun 29, 1993, 9:28 AM EDT for Franklin County, Gulf County, Florida. It was in force for 32 min.

The area

The counties it named.

The facts

Issued
Jun 29, 1993, 9:28 AM EDT (13:28 UTC)
Expired
Jun 29, 1993, 10:00 AM EDT
In force
32 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

Counties Franklin County, FL, Gulf County, FL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 1.5 hours before the alert went out and 92 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, Tallahassee Rgnl, FL at 12:00Z on 1993-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1433 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, Tallahassee Rgnl, FL at 12:00Z on 1993-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
1433 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
682 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
55 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 KAQQ 291328 RRA
SVRAQQ
FLC037-045-291400-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE APALACHICOLA FL
928 AM EDT TUE JUN 29 1993
 
THE NATIONAL WEATHER SERVICE IN APALACHICOLA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST FLORIDA
 
   ...FRANKLIN COUNTY...GULF COUNTY
 
AND FOR MARINE INTERESTS ON THE ADJACENT COASTAL WATERS
 
 
AT 920 AM EST A THUNDERSTORM WITH VERY HEAVY RAIN VERY STRONG WINDS AND
POSSIBLE HAIL HAIL WAS OCCURRING 25 MILES NORTHWEST OF APALACHICOLA.
 
MOVEMENT WAS EAST AT 10 MILES AN HOUR.
 
PERSONS IN EAST GULF COUNTY AND WEST FRANKLIN COUNTY SHOULD BE PREPARED
TO TAKE COVER.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
 
 
NNNN

Nearby

Severe Thunderstorm Warnings in Florida, 1993Every severe thunderstorm warning 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.