Alert archive / Florida / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 3, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Mar 1, 1989, 7:36 PM EST for Orange County, Florida. It was in force for 54 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 1, 1989, 7:36 PM EST (00:36 UTC)
- Expired
- Mar 1, 1989, 8:30 PM EST
- In force
- 54 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Orange County, FL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 1, 7:45 PM EST | Hail 0.75 | Orange, FL |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 00:00Z, 0.6 hours before the alert went out and 139 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
- 337 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 941 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- -11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMCO 020040
SVRMCO
FLC095-020130-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ORLANDO FL
736 PM EST WED MAR 1 1989
THE NATIONAL WEATHER SERVICE IN ORLANDO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM EST
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN CENTRAL FLORIDA
...EASTERN ORANGE
A VERY HEAVY...POSSIBLY SEVERE THUNDERSTORM IS LOCATED BETWEEN
UNION PARK AND GOLDENROD IN EASTERRN ORANGE COUNTY.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, Mar 1, 3:52 PM EST, 3 hours 44 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ORLANDO FL 400 PM EST WED MAR 1 1989 A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM EST FOR CENTRAL FLORIDA INCLUDING LAKE...ORANGE...SEMINOLE AND OSCEOLA COUNTIES. NATIONAL WEATHER SERVICE RADAR IS SHOWING SCATTERED THUNDERSTORMS OVER NORTHERN LAKE AND ORANGE COUNTY MOVING EAST 15 MPH. SCATTERED LIGHT TO MODERATE SHOWERS ARE MOVING IN TO CENTRAL ORANGE AND WESTERN SEMINOLE COUNTIES. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Mar 1, 4:38 PM EST, 2 hours 58 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE OFFICE DAYTONA BEACH FL 440 PM EST WED MAR 1 1989 A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM EST FOR ALL OF CENTRAL FLORIDA INCLUDING MARION...FLAGLER...VOLUSIA...BREVARD... AND INDIAN RIVER COUNTIES. SCATTERED THUNDERSTORMS AND A LARGE RAIN AREA WERE OVER NORTH AND CENTRAL FLORIDA FROM THE GEORGIA BORDER SOUTH TO TAMPA AND ORLANDO. THE STRONGEST THUNDERSTORMS WERE BETWEEN OCALA AND SANFORD. THE AREA EXTENDED OVER THE ATLANTIC FOR 70 MILES FROM FLAGLER BEACH TO BRUNSWICK GEORGIA AND OVER THE GULF FOR 80 MILES FROM CROSS CITY TO ST PETERSBURG. THE AREA WAS MOVING EAST 15 MPH.
Special weather statement, Mar 1, 5:35 PM EST, 2 hours 1 minute before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE OFFICE DAYTONA BEACH FL 535 PM EST WED MAR 1 1989 A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM EST FOR ALL OF CENTRAL FLORIDA INCLUDING MARION...FLAGLER...VOLUSIA...BREVARD... AND INDIAN RIVER COUNTIES. SCATTERED THUNDERSTORMS AND A LARGE RAIN AREA WERE OVER NORTH AND CENTRAL FLORIDA FROM THE GEORGIA BORDER SOUTH TO TAMPA AND MELBOURNE. THE HEAVIEST RAINFALL WAS OVER THE COASTAL WATERS EAST OF JACKSONVILLE AND NEAR ASTOR PARK. THE AREA EXTENDED OVER THE ATLANTIC FOR 90 MILES FROM THE GEORGIA BORDER TO TITUSVILLE AND OVER THE GULF FOR 60 MILES FROM CEDAR KEY TO ST PETERSBURG. MOVEMENT WAS NORTHEAST 35 MPH.
Special weather statement, Mar 1, 5:52 PM EST, 1 hour 44 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ORLANDO FL 550 PM EST WED MAR 1 1989 A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM EST FOR CENTRAL FLORIDA INCLUDING LAKE...ORANGE...SEMINOLE AND OSCEOLA COUNTIES. NATIONAL WEATHER SERVICE RADAR IS SHOWING STRONG THUNDERSTORMS WITH VERY HEAVY PRECIPITATION OVER LAKE COUNTY NEAR LEESBURG AND ALSO JUST MOVING INTO WEST CENTRAL OSCEOLA COUNTY. MOVEMENT WAS EAST AT 20 MILES AND HOUR. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSI(BLE WARNINGS.
Special weather statement, Mar 1, 6:35 PM EST, 1 hour 1 minute before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE OFFICE DAYTONA BEACH FL 635 PM EST WED MAR 1 1989 A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM EST FOR ALL OF CENTRAL FLORIDA INCLUDING MARION...FLAGLER...VOLUSIA...BREVARD... AND INDIAN RIVER COUNTIES. SCATTERED THUNDERSTORMS AND A LARGE RAIN AREA WERE OVER NORTH AND CENTRAL FLORIDA FROM THE GEORGIA BORDER SOUTH TO TAMPA AND MELBOURNE. THE HEAVIEST RAINFALL WAS JUST SOUTHWEST OF MELBOURNE. THE AREA EXTENDED OVER THE ATLANTIC FOR 80 MILES FROM THE GEORGIA BORDER TO CAPE CANAVERAL AND OVER THE GULF FOR 40 MILES FROM CEDAR KEY TO ST PETERSBURG. MOVEMENT WAS EAST 30 MPH.
Special weather statement, Mar 1, 7:01 PM EST, 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ORLANDO FL 700 PM EST WED MAR 1 1989 A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM EST FOR CENTRAL FLORIDA INCLUDING LAKE...ORANGE...SEMINOLE AND OSCEOLA COUNTIES. NATIONAL WEATHER SERVICE RADAR IS SHOWING STRONG THUNDERSTORMS WITH VERY HEAVY PRECIPITATION OVER ORANGE COUNTY JUST NORTH OF ORLANDO TO APOPKA AND MAITLAND AND FROM EAST OF KISSIMMEE SOUTH TO ST CLOUD IN OSCEOLA COUNTY. MOVEMENT WAS EAST NEAR 20 MPH. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LIST9EN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 1, 8:15 PM EST | Severe Thunderstorm Warning | MLB | Brevard, Volusia | 45 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1989Every severe thunderstorm warning in 1989
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.