Alert archive / Florida / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 26, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Mar 6, 1992, 6:18 PM EST for Brevard County, Indian River County, Florida. It was in force for 42 min.
The area
The counties it named.
The facts
- Issued
- Mar 6, 1992, 6:18 PM EST (23:18 UTC)
- Expired
- Mar 6, 1992, 7:00 PM EST
- In force
- 42 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
Counties Brevard County, FL, Indian River County, FL
The radar
The Melbourne radar (KMLB), 13 km from the middle of the area, began a volume at 23:19 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, 11.3 hours before the alert went out and 177 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
- 466 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 737 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMLB 062319 SVRMLB FLC009-061-070000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 618 PM EST FRI MAR 6 1992 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 700 PM EST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL FLORIDA ...SOUTHERN BREVARD COUNTY...INDIAN RIVER COUNTY ...A SEVERE THUNDERSTORM OVER SOUTH BREVARD COUNTY... AT 616 PM EST...WEATHER RADAR INDICATED A SEVERE THUNDERSTORM BETWEEN GRANT AND SEBASTIAN INLET. THIS STORM WAS MOVING SOUTH AT 15 MPH. AROUND 605 PM EST... THE MELBOURNE WEATHER OFFICE RECEIVED REPORTS OF WIND DAMAGE IN GRANT. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 58 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE OR IN MOBILE HOMES SHOULD MOVE INSIDE A STRONG BUILDING AND STAY AWAY FROM WINDOWS.
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 6, 3:49 PM EST, 2 hours 29 minutes before
FLZ017-062145- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 348 PM EST FRI MAR 6 1992 ...STRONG THUNDERSTORMS APPOACHING EAST COAST... AT 345 PM WEATHER SERVICE RADAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS EXTENDING FROM TITUSVILLE TO ABOUT 10 MILES WEST OF MELBOURNE. THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 15 MPH AND WILL BE MOVING TO THE EAST COAST WITHIN THE NEXT HOUR. IN ADDITION TO VERY HEAVY DOWNPOURS THE THUNDERSTORMS MAY PRODUCE DANGEROUS LIGHTNING AND WIND GUSTS OF OVER 30 MPH AS THEY PASS. RESIDENTS IN THESE AREAS SHOULD BE ALERT FOR THE THUNDERSTORMS AND USE EXTRA CAUTION WHEN DRIVING LATE THIS AFTERNOON. ELSEWHERE IN EAST CENTRAL FLORIDA...STRONG THUNDERSTORMS WERE ALONG THE COAST BETWEEN FLAGLER BEACH AND NEW SMYRNA BEACH AND FROM LAKE GEORGE AND EUSTIS TO WEST OF OCALA. SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER EAST CENTRAL FLORIDA INTO THE EVENINtG HOURS. PAF
Special weather statement, Mar 6, 4:21 PM EST, 1 hour 57 minutes before
FLZ011-062215- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 420 PM EST FRI MAR 6 1992 ...STRONG THUNDERSTORM WITH POSSIBLE HAIL NEAR TAVARES AND MT DORA IN LAKE COUNTY... AT 418 PM EST...WEATHER SERVICE RADAR INDICATED A STRONG THUNDERSTORM IN LAKE COUNTY NEAR TAVARES AND MT DORA. THIS STORM WAS PRODUCING VERY HEAVY RAIN AND FREQUENT LIGHTNING. IT IS ALSO VERY LIKELY THAT SOME HAIL TO ONE-HALF INCH AND GUSTY WINDS TO 45 MPH WERE ASSOCIATED WITH THIS STORM. THE STORM WAS MOVING NORTHEAST AT 20 MPH. RESIDENTS ACROSS THE NORTH HALF OF LAKE COUNTY SHOULD PREPARE FOR THREATENING WEATHER AND BE READY TO TAKE ACTION IF A WARNING IS ISSUED. WHEN THUNDERSTORMS ARE OCCURRING...STAY INSIDE A STURDY STRUCTURE AND AVOID WINDOWS.
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 6, 4:38 PM EST | Severe Thunderstorm Warning | MLB | Lake | 52 min |
| Mar 6, 4:45 PM EST | Severe Thunderstorm Warning | MLB | Brevard | 45 min |
| Mar 6, 4:49 PM EST | Severe Thunderstorm Warning | MLB | Orange | 41 min |
| Mar 6, 4:54 PM EST | Severe Thunderstorm Warning | MLB | Seminole | 66 min |
| Mar 6, 5:32 PM EST | Severe Thunderstorm Warning | MLB | Orange | 58 min |
| Mar 6, 5:43 PM EST | Tornado Warning | MLB | Orange | 62 min |
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.