Alert archive / Florida / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 84, NWS Melbourne, FL

July 15, 1992Volusia County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jul 15, 1992, 5:14 PM EDT for Volusia County, Florida. It was in force for 31 min.

The area

The counties it named.

The facts

Issued
Jul 15, 1992, 5:14 PM EDT (21:14 UTC)
Expired
Jul 15, 1992, 5:45 PM EDT
In force
31 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Volusia County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 9.2 hours before the alert went out and 194 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, Tampa Bay, FL at 12:00Z on 1992-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 787 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, Tampa Bay, FL at 12:00Z on 1992-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 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
787 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
1045 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
5 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 152116
SVRDAB
FLC127-152145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
514 PM EDT WED JUL 15 1992
 
THE NATIONAL WEATHER SERVICE IN DAYTONA BEACH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  545 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL FLORIDA
 
   ...NORTHWESTERN VOLUSIA COUNTY
 
AT 510 PM EDT...NATIONAL WEATHER SERVICE RADAR AT DAYTONA BEACH
DETECTED A SEVERE THUNDERSTORM SOUTHWEST OF BARBERVILLE NEAR THE
LAKE COUNTY LINE. THIS THUNDERSTORM IS ASSOCIATED WITH A LINE OF
THUNDERSTORMS THAT EXTENDS SOUTHWARD TO MOUNT DORA.
 
DURING THE NEXT 30 MINUTES...THUNDERSTORMS WILL MOVE THROUGH THE
NORTHWESTERN PART OF VOLUSIA COUNTY.
 
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 15, 3:17 PM EDT, 1 hour 57 minutes before
FLZ009-012-152115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
315 PM EDT WED JUL 15 1992

...THIS STATEMENT IS FOR MARION AND VOLUSIA COUNTIES...

STRONG THUNDERSTORMS HAVE DEVELOPED OVER THE SOUTH PART OF VOLUSIA
COUNTY...JUST INLAND FROM THE COAST...AROUND OAK HILL...EDGEWATER
AND NEW SMYRNA BEACH.  THESE THUNDERSTORMS WERE DRIFTING SLOWLY
NORTH AND NORTHWEST.

OTHER STRONG THUNDERSTORMS WERE DEVELOPING OVER THE INTERIOR OF THE
FLORIDA PENINSULA SOUTH OF DUNNELLON AND SUMMERFIELD.  THESE
THUNDERSTORMS WERE MOVING NORTHEAST AT 15 MPH AND WILL BE MOVING
INTO THE SOUTH PART OF MARION COUNTY WITHIN THE HOUR.

THESE THUNDERSTORMS WILL LIKELY PRODUCE STRONG AND GUSTY WINDS...
DANGEROUS LIGHTNING...VERY HEAVY DOWNPOURS AND POSSIBLY SOME
HAIL THIS AFTERNOON AS THEY MOVE THROUGH MARION AND VOLUSIA
COUNTIES.

MORTORISTS SHOULD EXERCISE CAUTION IN THE HEAVY DOWNPOURS.
Special weather statement, Jul 15, 3:52 PM EDT, 1 hour 22 minutes before
FLZ017-011-016-012-009-152100-

SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE
NATIONAL WEATHER SERVICE MELBOURNE FL
351 PM EDT WED JUL 15 1992

...THUNDERSTORMS INCREASING OVER EAST CENTRAL FLORIDA...

AT 345 PM A STRONG THUNDERSTORM WAS OVER SOUTHERN OSCEOLA COUNTY NEAR
KENANASVILLE. OTHER THUNDERSTORMS WERE SCATTERED FURTHER NORTH FROM
INLAND FROM MELBOURNE TO NEAR TITUSVILLE AND JUST INLAND FROM DAYTONA
AND FLAGLER BEACH.  FURTHER INLAND... THUNDERSTORMS WERE ALSO
INCREASING FROM NEAR LEESBURG WEST TO WILDWOOD.

DURING THE REST OF THE AFTERNOON... THUNDERSTORMS WILL CONTINUE MAINLY
OVER INLAND AREAS.  THE AREAS MOST LIKELY TO EXPERIENCE THE STRONGEST
THUNDERSTORMS BETWEEN 4 AND 5 PM WILL BE OSCEOLA COUNTY FROM
KENANSVILLE TO ST CLOUD...AS WELL AS EASTERN ORANGE AND SEMINOLE
COUNTIES.  OTHER STRONG THUNDERSTORMS COULD MOVE INTO NORTH LAKE AND
WESTERN VOLUSIA AS WELL AS EASTERN MARION COUNTIES.

WITH THESE LATE AFTERNOON THUNDERZSTORMS...PEOPLE CAN EXPECT STRONG
GUSTY WINDS...FREQUENT DANGEROUS LIGHTNING...VERY HEAVY RAIN AND
POSSIBLY SOME SMALL HAIL.

STAY TUNED TO NOAA WEATHER RADIO OR OTHER NEWS MEDIA FOR UPDATES ON
THIS AFTERNOONS WEATHER.

RG
Special weather statement, Jul 15, 4:29 PM EDT, 45 minutes before
FLZ009-012-152125-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
425 PM EDT WED JUL 15 1992

...THIS STATEMENT IS FOR MARION...FLAGLER AND VOLUSIA COUNTIES...

STRONG THUNDERSTORMS CONTINUE DEVELOPING OVER THE NORTH PART OF
VOLUSIA COUNTY INLAND FROM THE COAST...AND NAER DAYTONA AND
NEW SMYRNA BEACH.  THESE THUNDERSTORMS WERE DRIFTING SLOWLY
NORTH AND NORTHWEST.

OTHER STRONG THUNDERSTORMS WERE DEVELOPING OVER THE INTERIOR OF THE
FLORIDA PENINSULA SOUTH OF DUNNELLON AND SUMMERFIELD.  THESE
THUNDERSTORMS WERE MOVING NORTHEAST AT 15 MPH AND WILL BE MOVING
INTO THE SOUTH PART OF MARION COUNTY WITHIN THE HOUR.

THESE THUNDERSTORMS WILL LIKELY PRODUCE STRONG AND GUSTY WINDS...
DANGEROUS LIGHTNING...VERY HEAVY DOWNPOURS AND POSSIBLY SOME
HAIL THIS AFTERNOON AS THEY MOVE THROUGH MARION FLAGLER AND VOLUSIA
COUNTIES.

MORTORISTS SHOULD EXERCISE CAUTION IN THE HEAVY DOWNPOURS.
Special weather statement, Jul 15, 4:39 PM EDT, 35 minutes before
FLZ017-011-152145-

SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE
NATIONAL WEATHER SERVICE MELBOURNE FL
437 PM EDT WED JUL 15 1992

...STRONG THUNDERSTORMS DEVELOPING OVER EAST CENTRAL FLORIDA...

AT 435 PM WEATHER RADAR SHOWED STRONG THUNDERSTORMS BETWEEN FLAGLER
BEACH...LAKE GEORGE AND AND LEESBURG...AND BETWEEN BITHLO AND
TITUSVILLE. THE THUNDERSTORMS WERE MOVING TO THE NORTH AT 10 MPH. IN
ADDITION TO VERY HEAVY DOWNPOURS THE THUNDERSTORMS ARE CAPABLE OF
PRODUCING STRONG GUSTY WINDS...FREQUENT DANGEROUS LIGHTNING...AND
POSSIBLE HAIL.

DURING THE NEXT HOUR STRONG THUNDERSTORMS WILL CONTINUE TO DEVELOP
FROM BETWEEN FLAGLER BEACH AND DAYTONA BEACH TO BETWEEN OCALA AND
SANFORD AND CONTINUE TO LEESBURG AND THE ORLANDO AREA. PERSONS
IN THESE AREAS SHOULD REMAIN ALERT FOR THESE THUNDERSTORMS AND
SEEK SHELTER IF THREATENING WEATHER APPROACHES. STAY TUNED TO
LOCAL NEWS MEDIA OR NOAA WEATHER RADIO FOR FURTHER STATEMENTS
OR POSSIBLE WARNINGS.

ELSEWHERE IN EAST CENTRAL FLORIDA...SCATTERED SHOWERS AND
THUNDERSTORMS WERE OVER OSCEOLA COUNTY FROM LAKE KISSIMMEE
AND HOLOPAW SOUTH. THESE SHOWERS AND THUNDERSTORMS WILL
REACH THE KISSIMMEE/ST CLOUD AREA BY EARLY EVENING.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 8:19 PM EDTSevere Thunderstorm WarningMLBVolusia26 min
Jul 14, 9:41 PM EDTSevere Thunderstorm WarningMLBLake49 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.