Alert archive / Florida / Tornado Warnings in 1991
Tornado Warning 8, NWS Melbourne, FL
NWS Melbourne, FL issued this tornado warning at Jul 13, 1991, 7:19 AM EDT for Volusia County, Florida. It was in force for 56 min.
The area
The counties it named.
The facts
- Issued
- Jul 13, 1991, 7:19 AM EDT (11:19 UTC)
- Expired
- Jul 13, 1991, 8:15 AM EDT
- In force
- 56 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Volusia County, FL
The nearest sounding before it
Jacksonville, FL (KAYS), launched 00:00Z, 11.3 hours before the alert went out and 168 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
- 3794 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 1235 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 85 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 KDAB 131119 TORDAB FLC127-131215- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DAYTONA BEACH FL 719 AM EDT SAT JUL 13 1991 THE NATIONAL WEATHER SERVICE IN DAYTONA BEACH HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 815 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL FLORIDA ...SOUTHEASTERN VOLUSIA COUNTY AND THE ADJACENT COASTAL WATERS. AT 710 AM EDT RADAR SHOWS VERY STRONG THUNDERSTORMS MOVING DOWN THE COASTAL AREAS OF VOLUSIA COUNTY. A POSSIBLE TORNADO TOUCHDOWN WAS REPORTED IN PORT ORANGE. THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF AVAILABLE. OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT. AS THIS DANGEROUS STORM MOVES OUT OVER THE COASTAL WATERS... BOATERS rIN THE THREATENED AREA SHOULD TAKE ACTION TO AVOID THE HAZARDOUS WEATHER.
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, Jul 13, 5:51 AM EDT, 1 hour 28 minutes before
FLZ017-011-131045- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 550 AM EDT SAT JUL 13 1991 ...STRONG THUNDERSTORMS MOVING THROUGH THE ORLANDO AREA... AT 545 AM...A CLUSTER OF STRONG THUNDERSTORMS WAS OVER THE ORLANDO METRO AREA AND EASTERN ORANGE COUNTY. THE GREATEST THREAT WITH THESE THUNDERSTORMS APPEARED TO BE TORRENTIAL RAIN THAT WILL CAUSE PONDING OWATER ON ROADWAYS AND LOW LYING AREAS. ANOTHER CLUSTER OF THUNDERSTORMS WAS OVER THE COASTAL WATES BETWEEN COCOA BEACH AND FORT PIERCE. AGAIN THE GREATEST THREAT APPEARS TO BE TORRENTIAL RAIN. HOWEVER BOATERS SHOULD BE PREPARED FOR LIGHTNING... BRIEF PERIODS OF GUSTY WINDS...AND ROUGH SEAS NEAR THESE THUNDERSTORMS. CONSIDER DELAYING YOUR DEPARTURE IF PLANS WERE TO GO OFFSHORE. ELSEWHERE...A CLUSTER OF SHOWERS AND THUNDERSTORMS WAS OVER THE COASTAL WATERS BETWEEN ST AUGUSTINE AND DAYTONA BEACH. OTHER SHOWERS AND THUNDERSTORMS WERE BETWEEN MELBOURNE AND FORT PIERCE...AND EXTENDING DOWN TO LAKE OKEECHOBEE. MOST OF THE ACTIVITY WAS MOVING TO THE SOUTH AT 5 TO 10 MPH. THE SHOWERS AND THUNDERSTORMS WILL CONTINUE FOR AT LEAST THE NEXT HOUR.
Special weather statement, Jul 13, 5:53 AM EDT, 1 hour 26 minutes before
FLZ017-011-131045- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE...CORRECTED TEXT NATIONAL WEATHER SERVICE MELBOURNE FL 550 AM EDT SAT JUL 13 1991 ...STRONG THUNDERSTORMS MOVING THROUGH THE ORLANDO AREA... AT 545 AM...A CLUSTER OF STRONG THUNDERSTORMS WAS OVER THE ORLANDO METRO AREA AND EASTERN ORANGE COUNTY. THE GREATEST THREAT WITH THESE THUNDERSTORMS APPEARED TO BE TORRENTIAL RAIN THAT WILL CAUSE PONDING OF WATER ON ROADWAYS AND LOW LYING AREAS. ANOTHER CLUSTER OF THUNDERSTORMS WAS OVER THE COASTAL WATES BETWEEN COCOA BEACH AND FORT PIERCE. AGAIN THE GREATEST THREAT APPEARS TO BE TORRENTIAL RAIN. HOWEVER BOATERS SHOULD BE PREPARED FOR LIGHTNING... BRIEF PERIODS OF GUSTY WINDS...AND ROUGH SEAS NEAR THESE THUNDERSTORMS. CONSIDER DELAYING YOUR DEPARTURE IF PLANS WERE TO GO OFFSHORE. ELSEWHERE...A CLUSTER OF SHOWERS AND THUNDERSTORMS WAS OVER THE COASTAL WATERS BETWEEN ST AUGUSTINE AND DAYTONA BEACH. OTHER SHOWERS AND THUNDERSTORMS WERE BETWEEN MELBOURNE AND FORT PIERCE...AND EXTENDING DOWN TO LAKE OKEECHOBEE. MOST OF THE ACTIVITY WAS MOVING TO THE SOUTH AT 5 TO 10 MPH. THE SHOWERS AND THUNDERSTORMS WILL CONTINUE FOR AT LEAST THE NEXT HOUR.
Special weather statement, Jul 13, 6:53 AM EDT, 26 minutes before
FLZ016-131200- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 654 AM EDT SAT JUL 13 1991 ...STRONG THUNDERSTORMS CONTINUE OVER EAST CENTRAL FLORIDA... AT 650 AM...A STRONG THUNDERSTORM WAS NEAR KISSIMMEE AND LAKE TOHO. THIS THUNDERSTORM PRODUCED WIND GUSTS TO 41 MPH AT ORLANDO AND 37 MPH AT KISSIMMEE. PEOPLE SHOULD EXPECT STRONG GUSTY WINDS...FREQUENT LIGHTNING STRIKES...AND VERY HEAVY RAINS WITH THIS THUNDERSTORM AS IT MOVES SOUTH AT 10 TO 15 MPH. OTHER SCATTERED SHOWERS AND THUNDERSTORMS...MANY WITH VERY HEAVY RAIN...COVERED THE AREA FROM OFFSHORE ST AUGUSTINE TO TAVARES...AND SOUTH TO LAKE OKEECHOBEE. MOVEMENT WAS SOUTH AT 10 TO 15 MPH. THESE SHOWERS AND THUNDERSTROMS WILL CONTINUE INTO THE DAYLIGHT HOURS.
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.