Alert archive / Florida / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 85, NWS Melbourne, FL

July 13, 1993Marion County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jul 13, 1993, 7:03 PM EDT for Marion County, Florida. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Jul 13, 1993, 7:03 PM EDT (23:03 UTC)
Expired
Jul 13, 1993, 7:45 PM EDT
In force
42 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Marion County, FL

The nearest sounding before it

Jacksonville, FL (KAYS), launched 12:00Z, 11.1 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 1993-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 335 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 1993-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -38 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
335 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
1056 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-38 m²/s²
0-3 km storm-relative helicity
-21 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 132303 RRA
SVRDAB
FLC083-132345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
703 PM EDT TUE JUL 13 1993
 
THE NATIONAL WEATHER SERVICE IN DAYTONA BEACH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  745 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL FLORIDA
 
   ...EASTERN MARION COUNTY
 
NATIONAL WEATHER SERVICE RADAR INDICATED THAT THUNDERSTORMS OVER EASTERN
MARION COUNTY HAD INTENSIFIED AND HAD BECOME SEVERE.
 
THE SEVERE THUNDERSTORMS EXTENDED FROM JUST WEST OF LAKE GEORGE SOUTH
THROUGH THE OCALA NATIONAL FOREST WITH THE MOST SEVERE BEING ABOUT 10
MILES WEST OF ASTER PARK IN SOUTHEAST MARION COUNTY.
 
THE SEVERE THUNDERSTORMS WERE MOVING SLOWLY NORTHWEST AT 5 MILES AN
HOUR.
 
 
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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 13, 5:45 PM EDT, 1 hour 18 minutes before
FLZ012-132245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
545 PM EDT TUE JUL 13 1993

       ...THIS STATEMENT IS FOR VOLUSIA COUNTY...

A STRONG THUNDERSTORM WITH VERY HEAVY RAIN WAS IN NORTHWEST
VOLUSIA COUNTY MAINLY OVER THE BARBERVILLE AREA.

THIS STRONG THUNDERSTORM WAS DRIFTING SLOWLY NORTHWEST.

THIS STORM WILL LIKELY PRODUCE STRONG GUSTY WINDS...DANGEROUS
LIGHTNING...VERY HEAVY RAINFALL...AND POSSIBLY SOME HAIL DURING
DURING THE NEXT HOUR.

THE HEAVY DOWNPOURS CAN CAUSE PONDING OF WATER ON THE ROADWAYS...
AND MOTORISTS SHOULD BE ALERT AND NOT DRIVE THROUGH WATER OF
UNKNOWN DEPTH.

REMEMBER...THE SAFEST PLACE DURING A THUNDERSTORM IS INDOORS AWAY
FROM WINDOWS AND DOORS.
Special weather statement, Jul 13, 5:46 PM EDT, 1 hour 17 minutes before
FLZ012-132245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
545 PM EDT TUE JUL 13 1993

       ...THIS STATEMENT IS FOR VOLUSIA COUNTY...

A STRONG THUNDERSTORM WITH VERY HEAVY RAIN WAS IN NORTHWEST
VOLUSIA COUNTY MAINLY OVER THE BARBERVILLE AREA.

THIS STRONG THUNDERSTORM WAS DRIFTING SLOWLY NORTHWEST.

THIS STORM WILL LIKELY PRODUCE STRONG GUSTY WINDS...DANGEROUS
LIGHTNING...VERY HEAVY RAINFALL...AND POSSIBLY SOME HAIL DURING
DURING THE NEXT HOUR.

THE HEAVY DOWNPOURS CAN CAUSE PONDING OF WATER ON THE ROADWAYS...
AND MOTORISTS SHOULD BE ALERT AND NOT DRIVE THROUGH WATER OF
UNKNOWN DEPTH.

REMEMBER...THE SAFEST PLACE DURING A THUNDERSTORM IS INDOORS AWAY
FROM WINDOWS AND DOORS.
Special weather statement, Jul 13, 6:50 PM EDT, 13 minutes before
FLZ009-132345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
650 PM EDT TUE JUL 13 1993

       ...THIS STATEMENT IS FOR EAST MARION COUNTY...

STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE OCCURRING IN EASTERN
MARION COUNTY FROM JUST WEST OF LAKE GEORGE SOUTH THROUGH THE OCALA
NATIONAL FOREST.

THESE STRONG THUNDERSTORMS WERE MOVING TO THE NORTHWEST AT 5 MILES
AN HOUR.

THESE STORMS WILL LIKELY PRODUCE STRONG GUSTY WINDS...DANGEROUS
LIGHTNING...VERY HEAVY RAINFALL...AND POSSIBLY SOME HAIL DURING
DURING THE NEXT HOUR.

THE HEAVY DOWNPOURS CAN CAUSE PONDING OF WATER ON THE ROADWAYS...
AND MOTORISTS SHOULD BE ALERT AND NOT DRIVE THROUGH WATER OF
UNKNOWN DEPTH.

REMEMBER...THE SAFEST PLACE DURING A THUNDERSTORM IS INDOORS AWAY
FROM WINDOWS AND DOORS.
Special weather statement, Jul 13, 6:51 PM EDT, 12 minutes before
FLZ009-132345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
650 PM EDT TUE JUL 13 1993

       ...THIS STATEMENT IS FOR EAST MARION COUNTY...

STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE OCCURRING IN EASTERN
MARION COUNTY FROM JUST WEST OF LAKE GEORGE SOUTH THROUGH THE OCALA
NATIONAL FOREST.

THESE STRONG THUNDERSTORMS WERE MOVING TO THE NORTHWEST AT 5 MILES
AN HOUR.

THESE STORMS WILL LIKELY PRODUCE STRONG GUSTY WINDS...DANGEROUS
LIGHTNING...VERY HEAVY RAINFALL...AND POSSIBLY SOME HAIL DURING
DURING THE NEXT HOUR.

THE HEAVY DOWNPOURS CAN CAUSE PONDING OF WATER ON THE ROADWAYS...
AND MOTORISTS SHOULD BE ALERT AND NOT DRIVE THROUGH WATER OF
UNKNOWN DEPTH.

REMEMBER...THE SAFEST PLACE DURING A THUNDERSTORM IS INDOORS AWAY
FROM WINDOWS AND DOORS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 7:48 PM EDTSevere Thunderstorm WarningMLBMarion57 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.