Alert archive / Florida / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 77, NWS Melbourne, FL

July 10, 1993Marion County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jul 10, 1993, 2:05 PM EDT for Marion County, Florida. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Jul 10, 1993, 2:05 PM EDT (18:05 UTC)
Expired
Jul 10, 1993, 3:00 PM EDT
In force
55 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Marion County, FL

The nearest sounding before it

Jacksonville, FL (KAYS), launched 12:00Z, 6.1 hours before the alert went out and 148 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, Jacksonville, FL at 12:00Z on 1993-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1582 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, Jacksonville, FL at 12:00Z on 1993-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 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
1582 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
963 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
-2 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 
WUUS1 KDAB 101807 RRA
SVRDAB
FLC083-101900-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
205 PM EDT SAT JUL 10 1993
 
THE NATIONAL WEATHER SERVICE IN DAYTONA BEACH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL FLORIDA
 
   ...WESTERN MARION COUNTY
 
A SEVERE THUNDERSTORM WAS DETECTED BY NATIONAL WEATHER SERVICE
RADAR OVER THE EXTREME SOUTHWEST PART OF MARION COUNTY NORTH AND
NORTHWEST OF DUNNELLON.
 
THIS SEVERE THUNDERSTORM APPEARED TO BE DRIFTING SLOWLY EAST.
 
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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 1:34 PM EDTSevere Thunderstorm WarningMLBFlagler56 min
Jul 10, 2:25 PM EDTSevere Thunderstorm WarningMLBVolusia65 min
Jul 10, 3:14 PM EDTSevere Thunderstorm WarningMLBMarion46 min
Jul 10, 3:37 PM EDTSevere Thunderstorm WarningMLBVolusia53 min
Jul 10, 4:38 PM EDTSevere Thunderstorm WarningMLBOrange52 min
Jul 10, 5:36 PM EDTSevere Thunderstorm WarningMLBOsceola54 min

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.