Alert archive / Florida / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 82, NWS Melbourne, FL

July 14, 1992Volusia County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jul 14, 1992, 8:19 PM EDT for Volusia County, Florida. It was in force for 26 min.

The area

The counties it named.

The facts

Issued
Jul 14, 1992, 8:19 PM EDT (00:19 UTC)
Expired
Jul 14, 1992, 8:45 PM EDT
In force
26 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Volusia County, FL

The nearest sounding before it

Jacksonville, FL (KAYS), launched 00:00Z, 0.3 hours before the alert went out and 168 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 00:00Z on 1992-07-15Temperature 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 00:00Z on 1992-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 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
19 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
97 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 KDAB 150020
SVRDAB
FLC127-150045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
819 PM EDT TUE JUL 14 1992
 
THE NATIONAL WEATHER SERVICE IN DAYTONA BEACH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  845 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL FLORIDA
 
   ...NORTHWESTERN VOLUSIA COUNTY
 
AT 815 PM EDT...NATIONAL WEATHER SERVICE RADAR DETECTED A
SEVERE THUNDERSTORM NEAR LAKE GEORGE...JUST WEST OF THE TOWN
OF SEVILLE. THIS STORM IS PART OF A SOLID LINE OF VERY STRONG
THUNDERSTORMS THAT EXTENDS SOUTHWARD TO DELAND AND SANFORD.
THE LINE OF THUNDERSTORMS IS MOVING NORTHEAST AT 10 MPH.
 
 
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 14, 6:03 PM EDT, 2 hours 16 minutes before
FLZ009-142205-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
605 PM EDT TUE JUL 14 1992

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

AT 605 PM EDT...NATIONAL WEATHER SERVICE RADAR DETECTED A SMALL
CLUSTER OF THUNDERSTORMS NEAR WEIRSDALE. MOVEMENT WAS NORTH
AT 5 TO 10 MPH.

DURING THE NEXT HOUR...THUNDERSTORMS WILL AFFECT SOUTH MARION
COUNTY AND CAN BRING STRONG DAMAGfING 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.
Special weather statement, Jul 14, 7:27 PM EDT, 52 minutes before
FLZ00912-142320-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
720 PM EDT TUE JUL 14 1992

...STRONG THUNDERSTORMS OVER NORTHWEST AND SOUTHWEST VOLUSIA COUNTY...
...AND FLAGLER COUNTY...

AT 720 PM EDT...NATIONAL WEATHER SERVICE RADAR DETECTED A LINE
OF THUNDERSTORMS ALONG THE ST. JOHNS RIVER FROM ORANGE PARK SOUTH
TO NEAR SANFORD. THESE STORMS WERE DRIFTING TO THE EAST AT 5 TO 10
MPH.

DURING THE NEXT TWO HOURS...THUNDERS,TORMS WILL AFFECT VOLUSIA AND
FLAGLER COUNTIES AND CAN BRING STRONG DAMAGING WINDS...FREQUENT
LIGHTING...VERY HEAVY DOWNPOURS...AND POSSIBLY SMALL HAIL.

RESIDENTS SHOULD STAY ON THE LOOKOUT FOR THESE STORMS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 9:41 PM EDTSevere Thunderstorm WarningMLBLake49 min
Jul 15, 5:14 PM EDTSevere Thunderstorm WarningMLBVolusia31 min
Jul 15, 6:51 PM EDTSevere Thunderstorm WarningMLBLake39 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.