Alert archive / Florida / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 90, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Aug 2, 1992, 6:00 PM EDT for Seminole County, Florida. It was in force for 24 min.
The area
The counties it named.
The facts
- Issued
- Aug 2, 1992, 6:00 PM EDT (22:00 UTC)
- Expired
- Aug 2, 1992, 6:24 PM EDT
- In force
- 24 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Seminole County, FL
The radar
The Melbourne radar (KMLB), 88 km from the middle of the area, began a volume at 22:03 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 10.0 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
- 1793 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 786 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 17 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 022201 SVRMLB FLC117-022230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 600 PM EDT SUN AUG 2 1992 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL FLORIDA ...SEMINOLE COUNTY ...A SEVERE THUNDERSTORM OVER EAST SEMINOLE COUNTY... AT 6PM EDT...WEATHER RADAR INDICATED A SEVERE THUNDERSTORM OVER SEMINOLE COUNTY OVER THE GENEVA AREA. THIS THUNDERSTORM WAS MOVING SLOWLY TO THE SOUTHEAST AND WILL CONTINUE TO AFFECT THE EASTERN AND SOUTHEASTERN PART OF SEMINOLE COUNTY DURING THE NEXT HALF HOUR. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 58 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STRONG BUILDING. 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, Aug 2, 4:02 PM EDT, 1 hour 58 minutes before
FLZ006>017-020-022100- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DAYTONA BEACH FL 400 PM EDT SUN AUG 2 1992 THIS IS A SPECIAL WEATHER AND MARINE WEATHER STATEMENT FOR FLAGLER AND VOLUSIA COUNTIES... ...NEAR RECORD HEAT MEANS NEAR RECORD CROWDS ON THE BEACHES...AND WITH STRONG THUNDERSTORMS APPROACHING THE COASTAL AREAS OF THE EAST COAST.. MAKING THE TREK HOME MEANS DANGEROUS DRIVING CONDITIONS... AT 355 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A NEARLY SOLID LINE OF STRONG THUNDERSTORMS EXTENDING FROM PALATKA ACROSS EASTERN MARION COUNTY AND WEST VOLUSIA COUNTY. THESE STORMS WERE MOVING SLOWLY TOWARD THE EAST AND WILL LIKELY INTENSIFY FURTHER WITHIN THE NEXT HOUR OR SO. THESE STORMS WILL PRODUCE STRONG GUSTY WIND...FREQUENT DANGEROUS LIGHTNING...POSSIBLY SOME SMALL HAIL... AND PERHAPS THE GREATEST HAZARD FOR MOTORISTS...VERY HEAVY RAINS. RESIDENTS AND MOTORISTS SHOULD BE AWARE OF THE APPROACH OF THESE STORMS AND ANTICIPATE DANGEROUS DRIVING CONDITONS ON THE HIGHWAYS AND MAIN ROADWAYS LEADING TO THE INLAND COUNTIES. THE STORMS WERE MOVING SLOWLY TO THE EAST AT AROUND 10 MPH. A NEARLY CONTINOUS BAND OF THUNDERSTORMS EXTENDED FROM SOUTHEAST GEORGIA ALL THE WAY DOWN TO WEST CENTRAL FLORIDA AND THE PEACE RIVER. STRONG STORMS WERE ALSO OVER THE SUWANNE RIVER.
Special weather statement, Aug 2, 4:02 PM EDT, 1 hour 58 minutes before
FLZ017-011-016-022100- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 400 PM EDT SUN AUG 2 1992 ...VERY STRONG THUNDERSTORM 2 MILES NORTH OF MASCOTTE IN LAKE COUNTY... AT 355 PM EDT...WEATHER RADAR INDICATED A VERY STRONG THUNDERSTORM JUST 2 MILES NORTH OF MASCOTTE IN LAKE COUNTY. THIS STORM IS STILL INCREASING AND WILL BE WATCHED CLOSELY. THIS STORM WAS PRODUCING SOME VERY HEAVY RAIN AND FREQUENT LIGHTNING. WIND GUSTS TO 45 MPH ARE POSSIBLE ALONG WITH SMALL HAIL. THE STORM WAS MOVING EAST AT 5 TO 10 MPH. THROUGH 5 PM EDT...STRONG THUNDERSTORMS WILL BE OCCURRING FROM SOUTH LAKE COUNTY FROM MASCOTTE AND GROVELAND...TO NEAR HOWEY-IN-THE-HILLS ...TO LAKE APOPKA...TO APOPKA IN ORANGE COUNTY...TO NEAR DELAND. WHEN STRONG THUNDERSTORMS ARE OCCURRING...HEAD FOR SAFE SHELTER IF OUTDOORS. NEVER STAND UNDER A TALL ISOLATED TREE.
Special weather statement, Aug 2, 4:50 PM EDT, 1 hour 10 minutes before
FLZ006-017-020-022145- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DAYTONA BEACH FL 449 PM EDT SUN AUG 2 1992 THIS IS A SPECIAL WEATHER STATEMENT FOR FLAGLER AND VOLUSIA COUNTIES.. AT 445 PM EDT NATIONAL WEATHER SERVICE RADAR CONTINUED TO INDICATE STRONG THUNDERSTORMS OVER NORTHWEST FLAGLER COUNTY...NEAR I-4 ABOUT 10 MILES SOUTHWEST OF DAYTONA BEACH...AND IN EASTERN MARION COUNTY AROUND SR 40...APPROACHING LAKE GEORGE AND NORTHWEST VOLUSIA COUNTY. SIMILAR STORMS PRODUCED WIND GUSTS OVER 50 MPH NEAR JACKSONVILLE AND A FEW OF THE STORMS LOOK VERY CAPABLE OF PRODUCING SOME SMALL HAIL. FREQUENT DANGEROUS LIGHTNING STRIKES AND VERY HEAVY RAINS WILL ALSO ACCOMPANY THESE STORMS. THE STORMS WERE MOVING SLOWLY TOWARD THE EAST AT 5 TO 10 MPH. RESIDENTS AND MOTORISTS SHOULD BE PREPARED FOR THE APPROACH OF THESE STORMS AND SEEK SAFE SHELTER OR IF DRIVING...EXERCISE EXTREME CARE AND ANTICIPATE SLICK ROADWAYS0. ELSEWHERE...STRONG THUNDERTORMS EXTENDED FROM THE SOUTHEAST GEORGIA COASTLINE SOUTH TO AROUND THE PEACE RIVER SOUTH OF LAKELAND AND TAMPA.
Special weather statement, Aug 2, 4:54 PM EDT, 1 hour 6 minutes before
FLZ017-011-016-022200- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 453 PM EDT SUN AUG 2 1992 ...STRONG THUNDERSTORMS INCREASING OVER EAST CENTRAL FLORIDA... AT 450 PM THUNDERSTORMS...SOME PRODUCING VERY HEAVY RAIN AND FREQUENT LIGHTNING WERE SCATTERED FROM JUST WEST OF DAYTONA BEACH AND ST AUGUSTINE...SOUTHWEST TO OCALA...WEST OF SANFORD...APOPKA... AND ACROSS SOUTH LAKE COUNTY INTO POLK COUNTY. OTHER MORE ISOLATED SHOWERS AND THUNDERSTORMS WERE OVER OTHER PARTS OF EAST CENTRAL FLORIDA INCLUDING THE EAST SIDE OF ORLANDO AND WEST OF VERO BEACH. ALL THUNDERSTORMS WERE MOVING SLOWLY TO THE EAST. THE STRONGEST THUNDERSTORMS WERE OVER THE OCALA NATIONAL FOREST WEST OF ASTOR PARK...JUST SOUTHWEST OF DAYTONA BEACH...AND SOUTH OF CLERMONT. BETWEEN 5 AND 6 PM THUNDERSTORMS WILL CONTINUE TO INCREASE BETWEEN DAYTONA BEACH AND THE ORLANDO METRO AREA. RESIDENTS OF AREAS THREATENED BY THESE STRONG THUNDERSTORMS SHOULD BE PREPARED TO GO TO A SAFE PLACE. MOTORISTS SHOULD DRIVE WITH EXTRA CAUTION AS VERY HEAVY RAINS WILL FLOOD ROADWAYS IN SOME LOCATIONS. STAY TUNED TO NOAA WEATHER RADIO OR OTHER RELIABLE NEWS MEDIA FOR FURTHER STATEMENTS ASF THE LATE AFTERNOON AND EARLY EVENING PROGRESSES. RG
Special weather statement, Aug 2, 5:38 PM EDT, 22 minutes before
FLZ006-017-020-022145- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DAYTONA BEACH FL 535 PM EDT SUN AUG 2 1992 AT 535 PM EDT NATIONAL WEATHER SERVICE RADAR CONTINUED TO INDICATE STRONG THUNDERSTORMS OVER NORTHWEST FLAGLER COUNTY...NEAR I-4 ABOUT 10 MILES SOUTHWEST OF DAYTONA BEACH...AND IN EASTERN MARION COUNTY AROUND SR 40...APPROACHING LAKE GEORGE AND NORTHWEST VOLUSIA COUNTY. A FEW OF THE STORMS LOOK VERY CAPABLE OF PRODUCING SOME SMALL HAIL. FREQUENT DANGEROUS LIGHTNING STRIKES AND VERY HEAVY RAINS WILL ALSO ACCOMPANY THESE STORMS. THE STORMS WERE MOVING SLOWLY TOWARD THE EAST AT 5 TO 10 MPH. RESIDENTS AND MOTORISTS SHOULD BE PREPARED FOR THE APPROACH OF THESE STORMS AND SEEK SAFE SHELTER OR IF DRIVING...EXERCISE EXTREME CARE AND ANTICIPATE SLICK ROADWAYS. ELSEWHERE...STRONG THUNDERTORMS EXTENDED FROM THE SOUTHEAST GEORGIA COASTLINE SOUTH TO AROUND THE PEACE RIVER SOUTH OF LAKELAND AND TAMPA.
Special weather statement, Aug 2, 5:50 PM EDT, 10 minutes before
FLZ017-011-016-012-022245- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 548 PM EDT SUN AUG 2 1992 ...STRONG THUNDERSTORMS CONTINUE OVER EAST CENTRAL FLORIDA... AT 545 PM STRONG THUNDERSTORMS CONTINUED TO PRODUCE VERY HEAVY DOWNPOURS AND FREQUENT LIGHTNING OVER SOUTHERN VOLUSIA COUNTY JUST EAST OF I-4 AND INTO SEMINOLE COUNTY...AROUND OVIEDO...SANFORD AND TO NEAR MAITLAND. ANOTHER STRONG THUNDERSTORM WAS OVER EASTERN POLK COUNTY AND WAS DRIFTING EAST TOWARD LAKE KISSIMMEE. SHOWERS AND A FEW THUNDERSTORMS CONTINUED FURTHER NORTH...INCLUDING MARION COUNTY BUT HAD DIMINISHED DURING THE LAST HOUR.S THROUGH 7 PM THUNDERSTORMS WILL CONTINUE OVER ABOUT THE SAME AREAS AND ALSO DEVELOP RAPIDLY OVER MANY PARTS OF THE ORLANDO METRO AREA... MAINLY EAST OF TOWN...AND THEN SPREAD FURTHER SOUTH INTO OSCEOLA COUNTY AND POSSIBLY INTO NORTHERN BREVARD. RESIDENTS OF EAST CENTRAL FLORIDA SHOULD BE ON THE LOOKOUT FOR THESE STRONG STORMS WHICH HAVE BEEN AND WILL CONTINUE TO PRODUCE FREQUENT DANGEROUS LIGHTNING AND SOME GUSTY WINDS. MOTORISTS SHOULD DRIVE WITH EXTRA CAUTION DURING THESE THUNDERSTORMS AND BE AWARE THAT SOME ROADWAYS WILL BECOME FLOODED. RG
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; radar from the NEXRAD Level II archive.