Alert archive / Florida / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 75, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jul 12, 1992, 7:50 PM EDT for Flagler County, Volusia County, Florida. It was in force for 40 min.
The area
The counties it named.
The facts
- Issued
- Jul 12, 1992, 7:50 PM EDT (23:50 UTC)
- Expired
- Jul 12, 1992, 8:30 PM EDT
- In force
- 40 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
Counties Flagler County, FL, Volusia County, FL
The nearest sounding before it
Jacksonville, FL (KAYS), launched 12:00Z, 11.8 hours before the alert went out and 145 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.
- Mixed-layer CAPE
- 1923 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1029 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KDAB 122350 RRA SVRDAB FLC127-035-130030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DAYTONA BEACH FL 750 PM EDT SUN JUL 12 1992 THE NATIONAL WEATHER SERVICE IN DAYTONA BEACH HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL FLORIDA ...NORTHWESTERN VOLUSIA COUNTY IN NORTHEAST FLORIDA ...WESTERN FLAGLER COUNTY AND THE ADJACENT COASTAL WATERS. AT 745 PM EDT...THUNDERSTORMS CONTINUED TO INTENSIFY OVER NORTHWESTERN VOLUSIA COUNTY AND WERE MOVING NORTHWARD AT 15 MPH. NATIONAL WEATHER SERVICE RADAR INDICATES THAT THESE THUNDERSTORMS HAVE BECOME SEVERE DURING THE PAST 30 MINUTES. DURING THE 45 MINUTES...THUNDERSTORMS WILL MOVE NORTHWARD AND AFFECT THE WESTERN PART OF FLAGLER COUNTY BRINGING STRONG DAMAGING WINDS... DANGEROUS LIGHTNING...VERY HEAVY RAIN...AND POSSIBLY LARGE HAIL. THESE ARE DANGEROUS STORMS. IF YOU ARE IN THEIR 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 12, 5:43 PM EDT, 2 hours 7 minutes before
FLZ011-122245- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 542 PM EDT SUN JUL 12 1992 ...THUNDERSTORMS DEVELOPING OVER LAKE AND ORANGE COUNTIES... AT 540 PM EDT...THUNDERSTORMS WERE DEVELOPING IN A BAND FROM LAKE LOUISA TO LAKE APOPKA...AND NORTH TO MT DORA AND ALTOONA. THE THUNDERSTORMS WERE MOVING TO THE NORTH AT 15 TO 20 MPH. THEY WILL PRODUCE VERY HEAVY RAIN...GUSTY WINDS...AND POSSIBLE SMALL HAIL. PEOPLE SHOULD BE ALERT FOR THESE THUNDERSTORMS FOR THE NEXT HOUR OR TWO. TAKE SHELTER INDOORS IF THREATENING WEATHER APPROACHES. ELSEWHERE...ONLY ISOLATED SHOWERS DOTTED EAST CENTRAL FLORIDA. MORE GENERAL RAIN EXTENDED FROM FORT PIERCE TO LA KE KISSIMMEE AND WILL BE MOVING INTO SOUTHERN OSCEOLA COUNTY AND INDIAN RIVER COUNTY WITHIN THE HOUR.
Special weather statement, Jul 12, 7:22 PM EDT, 28 minutes before
FLZ012-130020- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DAYTONA BEACH FL 720 PM EDT SUN JUL 12 1992 ...STRONG THUNDERSTORMS OVER NORTHWEST VOLUSIA COUNTY... ...THIS STATEMENT IS FOR NORTHWEST VOLUSIA COUNTY... AT 715 PM EDT...NATIONAL WEATHER SERVICE RADAR DETECTED A SMALL CLUSTER OF THUNDERSTORMS BETWEEN LAKE GEORGE AND BARBERVILLE. MOVEMENT WAS NORTH AT 10 TO 15 MPH. DURING THE NEXT HOUR...THUNDERSTORMS WILL AFFECT NORTHWEST VOLUSIA COUNTY AND CAN BRING STRONG DAMAGING WINDS...FREQUENT LIGHTNING... VERY HEAVY DOWNPOURS...AND POSSIBLY SMALL HAIL. VOLUSIA COUNTY HIGHWAY PATROL REPORTED WIND DAMAGE IN THE PIERSON AREA WITH DOWNED TREES AND POWER LINES THIS EVENING. RESIDENTS SHOULD STAY ON THE LOOKOUT FOR THESE STORMS. BEST PROTECTION FROM LIGHTNING IS INSIDE A BUILDING OR CAR.
Special weather statement, Jul 12, 7:39 PM EDT, 11 minutes before
FLZ011-130045- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 738 PM EDT SUN JUL 12 1992 ...STRONG THUNDERSTORMS BETWEEN ST CLOUD AND DADE CITY... AT 735 PM EDT...STRONG THUNDERSTORMS WERE AROUND THE KISSIMMEE/ST CLOUD AREA AND MOVING INTO SOUTHERN LAKE COUNTY. THE THUNDERSTORMS WERE MOVING TO THE NORTH AT 15 TO 20 MPH. THESE THUNDERSTORMS WILL PRODUCE VERY HEAVY RAIN AND STRONG GUSTY WINDS. PEOPLE SHOULD BE ALERT FOR THESE THUNDERSTORMS AND TAKE SHELTER INDOORS IF THEY APPROACH YOUR AREA. THE THUNDERSTORMS WILL BE MOVING INTO THE CLERMONT AREA AND OTHERS COULD DEVELOP BETWEEN ORLANDO AND LAKE APOPKA DURING THE NEXT HOUR. ELSEWHERE...STRONG THUNDERSTORMS CONTINUED BETWEEN PALATKA AND BARBERVILLE.
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.