Alert archive / Florida / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 77, NWS Melbourne, FL

July 13, 1992Marion County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jul 13, 1992, 6:03 PM EDT for Marion County, Florida. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Jul 13, 1992, 6:03 PM EDT (22:03 UTC)
Expired
Jul 13, 1992, 6:45 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, 10.1 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 1992-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1992-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -92 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-92 m²/s²
0-3 km storm-relative helicity
-50 m²/s²
Significant tornado parameter
0.0
Supercell composite
-2.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KDAB 132203
SVRDAB
FLC083-132245-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
603 PM EDT MON JUL 13 1992
 
THE NATIONAL WEATHER SERVICE IN DAYTONA BEACH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  645 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL FLORIDA
 
   ...SOUTHWESTERN MARION COUNTY
 
 
A LARGE SEVERE THUNDERSTORM WAS LOCATED OVER SOUTWEST MARION COUNTY
SOUTH OF OCALA MOVING TOWARD TOP OF THE WORLD OR WEST 15 MPH.
 
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

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, 5:50 PM EDT, 13 minutes before
FLZ009-132240-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
545 PM EDT MON JUL 13 1992

...STRONG THUNDERSTORMS OVER SOUTH MARION COUNTY...
...THIS STATEMENT IS FOR SOUTH MARION COUNTY...

AT 545 PM EDT...NATIONAL WEATHER SERVICE RADAR DETECTED A SMALL
CLUSTER OF THUNDERSTORMS NEAR BELLVIEW. MOVEMENT WAS NORTHWEST
AT 10 TO 15 MPH.

DURING THE NEXT HOUR...THUNDERSTORMS WILL AFFECT SOUTH MARION
COUNTY AND CAN BRING STRONG DAMAGING WINDS...FREQUENT LIGHTNING...
VERY HEAVY DOWNPOURS...AND POSSIBLY SMALL HAIL.

RESIDENTS SHOULD STAY ON THE LOOKOUT FOR THESE STORMS. BEST PROTECTION
FROM LIGHTNING IS INSIDE A BUILDING OR CAR.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 4:57 PM EDTSevere Thunderstorm WarningMLBSaint Lucie48 min

Nearby

Severe Thunderstorm Warnings in Florida, 1992Every severe thunderstorm warning in 1992

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.