Alert archive / Florida / Tornado Warnings in 1991
Tornado Warning 10, NWS Melbourne, FL
NWS Melbourne, FL issued this tornado warning at Aug 9, 1991, 4:59 PM EDT for Brevard County, Florida. It was in force for 31 min.
The area
The counties it named.
The facts
- Issued
- Aug 9, 1991, 4:59 PM EDT (20:59 UTC)
- Expired
- Aug 9, 1991, 5:30 PM EDT
- In force
- 31 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Brevard County, FL
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 9.0 hours before the alert went out and 180 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
- 3206 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 629 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 1 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 092101 TORMLB FLC009-092130- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 459 PM EDT FRI AUG 9 1991 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 530 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL FLORIDA ...NORTH AND CENTRAL BREVARD COUNTY AT 500 PM RADAR INDICATED A POSSIBLE TORNADO JUST WEST OF COCOA. IT WAS MOVING TO THE EAST AT 10 TO 15 MPH AND IT WILL MOVE ACROSS THE COCOA AREA AND TO OVER MERRITT ISLAND BETWEEN 5 AND 530 PM. THIS IS A DANGEROUS STORM. 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.
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, Aug 9, 1:20 PM EDT, 3 hours 39 minutes before
FLZ009-091915- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DAYTONA BEACH FL 119 PM EDT FRI AUG 9 1991 ...THIS STATEMENT IS FOR MARION COUNTY... A FEW STRONG THUNDERSTORMS WERE OVER THE SOUTHWEST PART OF MARION COUNTY NEAR OCALA AND SUMMERFIELD. THEY WERE MOVING EAST LESS THAN 10 MPH. THESE THUNDERSTORMS MAY PRODUCE HEAVY RAIN...GUSTY WINDS TO 35 MPH... DANGEROUS LIGHTNING STRIKES AND HAIL. DUE TO THE SLOW MOVEMENT BRIEF FLOO#DING COULD OCCUR IN AREAS THAT USUALLY FLOOD DURING HEAVY DOWNPOURS.
Special weather statement, Aug 9, 1:44 PM EDT, 3 hours 15 minutes before
FLZ017-011-016-012-009-091845- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 142 PM EDT FRI AUG 9 1991 ...STRONG THUNDERSTORMS MOVING INTO LAKE COUNTY... AT 140 PM THUNDERSTORMS WITH VERY HEAVY RAIN AND FREQUENT LIGHTNING WERE FROM JUST WEST OF WEIRSDALE TO MASCOTTE AND 30 MILES SOUTHWEST OF CLERMONT. THESE STORMS MAY ALSO PRODUCE STRONG GUSTY WINDS AND SMALL HAIL. THE STORMS WERE MOVING EAST AT LESS THAN 10 MPH...AND WILL MOVE ACROSS LAKE COUNTY DURING THE NEXT 1 TO 2 HOURS. PERSONS IN THE PATH OF THESE STORMS SHOULD MOVE INDOORS TO AVOID LIGHTNING. ELSEWHERE OVER EAST CENTRAL FLORIDA SCATTERED SHOWERS AND THUNDERSTORMS WERE FROM ASTOR PARK TO BARBERVILLE...NEAR LAKE KISSIMMEE...AND ALONG THE COAST FROM THE SPACE CENTER TO MELBOURNE AND VERO BEACH. SOME OF THESE STORMS WERE PRODUCING VERY HEAVY RAIN. BOATERS AND OTHER MARINE INTERESTS FROM CAPE CANAVERAL TO VERO BEACH SHOULD BE ALERT FOR THESE THUNDERSTORMS...AND HEAD FOR SAFE HARBOR IF THREATENING WEATHER APPROACHES. BETWEEN 2 AND 4 PM...SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO INCREASE OVER EAST CENTRAL FLORIDA...SOME OF WHICH WILL CONTAIN VERY HEAVY RAIN AND STKRONG WINDS. R.SMITH
Special weather statement, Aug 9, 4:16 PM EDT, 43 minutes before
FLZ012-092100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DAYTONA BEACH FL 415 PM EDT FRI AUG 9 1991 THUNDERSTORMS PRODUCING STRONG WINDS...VERY HEAVY RAIN...DANGEROUS LIGHTNING AND POSSIBLY SOME HAIL WERE OVER THE EAST PART OF VOLUSIA COUNTY...STRETCHING FROM THE DAYTONA BEACH AREA SOUTH TO NEW SMYRNA AND EDGEWATER. A WIND GUST TO 46 MPH WAS RECORDED AT THE DAYTONA BEACH REGIONAL AIRPORT DURING ONE OF THE THUNDERSTORMS AND ABOUT ONE INCH OF RAIN FELL IN 15 MINUTES. THE HEAVY RAINFALL WILL MAKE DRIVING DANGEROUS AND MOTORISTS SHOULD USE CAUTION THIS AFTERNOON AS SOME ROADWAYS AND INTERSECTIONS WILL BE FLOODED. SOME FLOODING OF LOW LYING AREAS CAN ALSO BE EXPECTED. THESE THUNDERSTORMS WERE MOVING EAST AT 10 MPH AND SHOULD MOVE OUT OF THE AREA BY 500 PM.
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 2:25 PM EDT | Severe Thunderstorm Warning | MLB | Orange | 65 min |
| Aug 9, 3:31 PM EDT | Severe Thunderstorm Warning | MLB | Orange, Osceola | 29 min |
| Aug 9, 4:00 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 60 min |
| Aug 9, 4:00 PM EDT | Severe Thunderstorm Warning | MLB | Osceola | 45 min |
| Aug 9, 4:36 PM EDT | Severe Thunderstorm Warning | MLB | Saint Lucie | 69 min |
| Aug 9, 5:29 PM EDT | Severe Thunderstorm Warning | MLB | Okeechobee | 61 min |
| Aug 9, 5:45 PM EDT | Severe Thunderstorm Warning | MLB | Osceola | 45 min |
| Aug 9, 6:12 PM EDT | Severe Thunderstorm Warning | MLB | Martin | 63 min |
| Aug 9, 6:15 PM EDT | Severe Thunderstorm Warning | MLB | Indian River | 43 min |
| Aug 9, 6:15 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 60 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.