Alert archive / Florida / Tornado Warnings in 1991
Tornado Warning 6, NWS Melbourne, FL
NWS Melbourne, FL issued this tornado warning at Apr 25, 1991, 4:43 PM EDT for Osceola County, Florida. It was in force for 62 min.
The area
The counties it named.
The facts
- Issued
- Apr 25, 1991, 4:43 PM EDT (20:43 UTC)
- Expired
- Apr 25, 1991, 5:45 PM EDT
- In force
- 62 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Osceola County, FL
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 8.7 hours before the alert went out and 78 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
- 2559 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 534 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMLB 252045 TORMLB FLC097-252145- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 443 PM EDT THU APR 25 1991 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 545 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL FLORIDA ...OSCEOLA COUNTY AT 440 PM A CLUSTER OF SEVERE THUNDERSTORMS WITH A HISTORY OF PRODUCING TORNADOS WAS MOVING INTO WESTERN OSCEOLA COUNTY. THE CLUSTER WAS MOVING TO THE NORTHEAST AT 30 MPH AND WILL BE MOVING INTO THE KISSIMMEE/ST CLOUD AREA WITHIN THE NEXT HALF HOUR. RESIDENTS...ESPECIALLY IN MOBILE HOMES AND OTHER VULNERABLE AREAS SHOULD GO TO A SAFE PLACE AT THIS TIME. IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS... OR CUSHION7S TO COVER YOUR BODY. AVOID WINDOWS.
What forecasters said that day
The local office's own words before this tornado 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, Apr 25, 1:48 PM EDT, 2 hours 55 minutes before
FLZ006>017-020-251845- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DAYTONA BEACH FL 139 PM EDT THU APR 25 1991 ...STRONG THUNDERSTORMS CONTINUE OVER NORTH AND CENTRAL FLORIDA... SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MUCH OF NORTH AND CENTRAL FLORIDA. AT 125 PM EDT...RADAR SHOWED STRONG THUNDERSTORMS FROM NEAR CEDAR KEY TO GAINESVILLE THEN TO LAKE GEORGE. OTHER THUNDERSTORMS AND A LARGE AREA OF RAIN EXTENDED ACROSS FLORIDA FROM THE TAMPA BAY AREA TO TALLAHASSEE INCLUDING THE GULF COASTAL WATERS AND EAST TO MELBOURNE AND FERNANDINA BEACH. MOVEMENT WAS EAST 30 MPH.
Special weather statement, Apr 25, 2:00 PM EDT, 2 hours 43 minutes before
FLZ017-011-016-012-009-251900- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 158 PM EDT THU APR 25 1991 ...RAPIDLY DEVELOPING THUNDERSTORMS IN EAST CENTRAL FLORIDA... AT 155 PM WEATHER SERVICE RADAR SHOWED RAPIDLY DEVELOPING THUNDERSTORMS BETWEEN LONGWOOD AND ASTOR PARK MOVING TO THE EAST AT 30 MPH. THE THUNDERSTORMS WILL BE MOVING TO BETWEEN DELAND AND SANFORD DURING THE NEXT HOUR PRODUCING HEAVY DOWNPOURS...FREQUENT DANGEROUS LIGHTNING...AND POSSIBLE HAIL AS THEY PASS. A CLUSTER OF THUNDERSTORMS HAD FORMED FROM THE KISSIMMEE AND ST CLOUD AREA EXTENDING DOWN THE FLORIDA TURNPIKE TO AROUND HOLOPAW. THESE THUNDERSTORMS SHOWED LITTLE MOVEMENT BUT WERE PRODUCING HEAVY DOWNPOURS THAT WILL LIKELY PRODUCE PONDING OF WATER IN LOW LYING AREAS. MOTORISTS SHOULD USE EXTRA CAUTION WHEN DRIVING IN THESE AREAS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR ALL OF EAST CENTRAL FLORIDA AND THE ADJACENT COASTAL WATERS UNTIL 8 PM EDT. RESIDENTS SHOULD KEEP ABREAST OF THE LATEST WEATHER CONDITIONS. A LARGE AREA OF RAIN AND THUNDERSTORMS COVERED A GOOD PORTION OF NORTH CENTRAL FLORIDA AND THE EASTERN GULF AND WILL BE MOVING INTO CENTRAL FLORIDA THROUGH THE REMAINING AFTERNOON AND EVENING HOURS.
Special weather statement, Apr 25, 2:41 PM EDT, 2 hours 2 minutes before
FLZ006>020-251945- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DAYTONA BEACH FL 238 PM EDT THU APR 25 1991 ...STRONG THUNDERSTORMS CONTINUE OVER CENTRAL FLORIDA... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MUCH OF NORTH AND CENTRAL FLORIDA. AT 225 PM EDT...THE STRONGEST THUNDERSTORMS WERE LOCATED BETWEEN CRYSTAL RIVER AND GAINESVILLE. SCATTERED THUNDERSTORMS IN AN AREA OF RAIN COVERED THE REMAINDER OF NORTH AND CENTRAL FLORIDA FROM FORT MYERS TO MELBOURNE NORTH TO THE GEORGIA STATE LINE AND INCLUDED THE ADJACENT COASTAL WATERS. MOVEMENT WAS EAST AT 30 MPH.
Special weather statement, Apr 25, 2:57 PM EDT, 1 hour 46 minutes before
FLZ017-011-016-012-009-252000- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 254 PM EDT THU APR 25 1991 ...THUNDERSTORMS WITH HEAVY RAINFALL OVER EAST CENTRAL FLORIDA... AT 250 PM WEATHER SERVICE RADAR SHOWED STRONG THUNDERSTORMS WITH VERY HEAVY RAINFALL EXTENDED FROM OCALA SOUTHWEST TO CRYSTAL RIVER AND WERE NEAR CLERMONT. THESE THUNDERSTORMS WERE WITHIN A LARGE AREA OF RAIN WITH SCATTERED EMBEDDED THUNDERSTORMS COVERING MUCH OF NORTH AND CENTRAL FLORIDA AND THE ADJACENT COASTAL WATERS. THE RAIN AND THUNDERSTORMS WERE MOVING TO THE EAST AT 30 MPH. OVER THE NEXT TWO HOURS RAIN AND A FEW THUNDERSTORMS WILL CONTINUE OVER MOST OF EAST CENTRAL FLORIDA. THE HEAVIEST DOWNPOURS WILL MOVE TO BETWEEN CLERMONT AND DISNEY WORLD AND IN THE OCALA AREA. MOTORISTS SHOULD USE EXTRA CAUTION FOR PONDING OF WATER IN LOW LYING AREAS AND FREQUENT DANGEROUS LIGHTNING WITH THE THUNDERSTORMS. STRONG THUNDERSTORMS AND RAIN COVERED MUCH OF THE EASTERN GULF AND WILL CONTINUE TO MOVE ONSHORE AND ACROSS CENTRAL FLORIDA THROUGH THE REMAINING AFTERNOON AND EVENING HOURS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR ALL OF EAST CENTRAL FLORIDA AND THE ADJACENT COASTAL WATERS UNTIL 8 PM EDT. RESIDENTS SHOULD KEEP ABREAST OF THE LATEST WEATHER CONDITIONS AND BE PREPARED TO SEEK SAFE SHELTER IF THREATENING WEATHER APPROACHES.
Special weather statement, Apr 25, 3:41 PM EDT, 1 hour 2 minutes before
FLZ006>020-252045- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DAYTONA BEACH FL 339 PM EDT THU APR 25 1991 ...STRONG THUNDERSTORMS CONTINUE OVER CENTRAL FLORIDA... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MUCH OF NORTH AND CENTRAL FLORIDA. AT 325 PM EDT...THE STRONGEST THUNDERSTORMS WERE LOCATED BETWEEN OCALA AND WINTER HAVEN IN CENTRAL FLORIDA AND AROUND ST PETERSBURG ON THE WEST CAOST. SCATTERED THUENDERSTORMS IN AN AREA OF RAIN COVERED THE REMAINDER OF THE STATE FROM FORT MYERS TO FORT LAUDERDALE NORTHWARD AND THE ADJACENT COASTAL WATERS NORTH OF MELBOURNE AND FORT MYERS. MOVEMENT WAS EAST AT 30 MPH.
Special weather statement, Apr 25, 4:37 PM EDT, 6 minutes before
FLZ017-011-016-012-009-252145- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 436 PM EDT THU APR 25 1991 ...STRONG THUNDERSTORMS APPROACHING SOUTHERN LAKE...SOUTHWEST ORANGE AND WESTERN OSCEOLA COUNTIES... ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR ALL OF EAST CENTRAL FLORIDA AND THE ADJACENT COASTAL WATERS UNTIL 8 PM EDT... AT 435 PM NATIONAL WEATHER SERVICE RADAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING VERY HEAVY DOWNPOURS... STRONG GUSTY WINDS...FREQUENT DANGEROUS LIGHTNING...AND POSSIBLE HAIL EXTENDING FROM AROUND LAKELAND TO FROSTPROOF. THE THUNDERSTORMS HAVE HAD A HISTORY OF PRODUCING SEVERE WEATHER AS THEY MOVED THROUGH WEST CENTRAL FLORIDA. THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 30 MPH AND WILL BE INTO CLERMONT...THE ORLANDO/DISNEY WORLD AREA AND THE KISSIMMEE/ST CLOUD AREA DURING THE NEXT HOUR. RESIDENTS IN THESE AREAS SHOULD STAY TUNED FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS AND SEEK SAFE SHELTER IF THREATENING WEATHER APPROACHES. A LARGE AREA OF RAIN AND SCATTERED THUNDERSTORMS COVERED THE REMAINDER OF EAST CENTRAL FLORIDA AND THE ADJACENT COASTAL WATERS AND 4WILL CONTINUE INTO THE EVENING HOURS.
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 12:12 PM EDT | Severe Thunderstorm Warning | MLB | Alachua, Marion | 63 min |
| Apr 25, 5:41 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Indian River | 64 min |
Nearby
Tornado Warnings in Florida, 1991Every tornado warning in 1991Tornadoes in 1991
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.