Alert archive / Florida / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 110, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Sep 4, 1992, 3:24 PM EDT for Seminole County, Florida. It was in force for 36 min.
The area
The counties it named.
The facts
- Issued
- Sep 4, 1992, 3:24 PM EDT (19:24 UTC)
- Expired
- Sep 4, 1992, 4:00 PM EDT
- In force
- 36 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Seminole County, FL
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 7.4 hours before the alert went out and 160 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
- 1724 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 759 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMLB 041923 SVRMLB FLC117-042000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 324 PM EDT FRI SEP 4 1992 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 400 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL FLORIDA ...SEMINOLE COUNTY AT 320 PM A SEVERE THUNDERSTORM WAS INDICATED BY RADAR OVER SEMINOLE COUNTY AROUND SANFORD. THE STORM WAS MOVING NORTHWEST AT ABOUT 15 MPH AND WILL EFFECT SANFORD AND LAKE MONROE AREAS WITH BETWEEN 320 AND 4PM. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 58 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE OR IN MOBILE HOMES SHOULD MOVE INSIDE A STRONG BUILDING AND 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, Sep 4, 2:07 PM EDT, 1 hour 17 minutes before
FLZ009-041900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DAYTONA BEACH FL 205 PM EDT FRI SEP 4 1992 THIS IS A SPECIAL WEATHER STATEMENT FOR MARION COUNTY... AT 205 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED STRONG... RAPIDLY INTENSIFYING THUNDERSTORMS MOVING INTO SOUTHEAST MARION COUNTY. THE STORMS EXTENDED FROM NEAR THE SOUTHWEST SHORES OF LAKE GEORGE TO NEAR THE OKLAWAHA RIVER IN THE SOUTHEAST PORTION OF THE COUN THE STORMS WERE MOVING WEST TO NORTHWEST AT AROUND 10 MPH AND WILL LIKELY REMAIN INTACT...IN PASSING THE WIDTH OF THE COUNTY...FOR AT LEAST HOUR TO HOUR AND ONE-HALF. STRONG GUSTY WINDS WERE ALREADY BEING REPORTED AT THE NAVY FACILITY IN THE SOUTHEAST CORNER OF THE COUNTY AND WILL LIKELY CONTINUE ALONG WITH FREQUENT DANGEROUS LIGHTNING STRIKES...POSSIBLY SMALL HAIL...AND VERY HEAVY RAINS. RESIDENTS ARE ADVISED TO KEEP A WATCH FOR THE APPROACH OF THESE STORMS AND BE PREPARED TO SEEK SAFE SHELTER IMMEDIATELY. MOTORISTS SHOULD EXPECT DANGEROUS DRIVING CONDITIONS AND STANDING WATER ON ROADWAYS.
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.