Alert archive / Florida / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 11, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jun 11, 1990, 4:16 PM EDT for Osceola County, Florida. It was in force for 59 min.
The area
The counties it named.
The facts
- Issued
- Jun 11, 1990, 4:16 PM EDT (20:16 UTC)
- Expired
- Jun 11, 1990, 5:15 PM EDT
- In force
- 59 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Osceola County, FL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 8.3 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
- 905 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 850 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 17 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 112018 SVRMLB FLC097-112115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 416 PM EDT MON JUN 11 1990 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 515 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL FLORIDA ...EASTERN OSCEOLA COUNTY RADAR INDICATED A SEVERE THUNDERSTORM OVER NORTHEAST OSCEOLA COUNTY NEAR NARCOOSSEE AND LAKE TOHOPEKALIGA MOVING SOUTHEAST 20 MPH. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 58 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
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, Jun 11, 1:35 PM EDT, 2 hours 41 minutes before
FLZ011-017-111835- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 135 PM EDT MON JUN 11 1990 RADAR INDICATED A LINE OF THUNDERSTORMS THAT EXTENDED FROM ABOUT 20 MILES OFFSHORE CAPE CANAVERAL ACROSS NORTHERN BREVARD...TO SANFORD AND INTO NORTHERN LAKE COUNTY. FREQUENT LIGHTNING WAS INDICATED IN SOME OF THE THUNDERSTORMS. RESIDENTS AND BOATERS SHOULD BE ALERT FOR THESE THUNDERSTORMS AS VERY HEAVY RAINFALL AND BRIEFLY STRONG AND GUSTY WINDS ARE ALSO POSSIBLE. MOVEMENT OF THE SHOWERS AND THUNDERSTORMS WAS SOUTHEAST AT 15 MILES AN HOUR. ELSEWHERE...WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WERE DEVELOPING FROM OSCEOLA TO SOUTHERN LAKE COUNTY. FOR THE NEXT HOUR THE THUNDERSTORMS WILL MOVE SOUTHWARD AND AFFECT THE NORTHERN HALF OF BREVARD AND THE ORLANDO AREA.
Special weather statement, Jun 11, 2:46 PM EDT, 1 hour 30 minutes before
FLZ011-017-111945- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 245 PM EDT MON JUN 11 1990 ...A SPECIAL MARINE WARNING IS IN EFFECT FOR THE BREVARD COASTAL WATERS FROM CAPE CANAVERAL TO COCOA BEACH UNTIL 300 PM... ...A SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR LAKE COUNTY UNTIL 330PM... AT 230 PM A LINE OF THUNDERSTORMS EXTENDED FROM ABOUT 50 MILES OFFSHORE COCOA BEACH ACROSS EASTERN AND NORTHERN ORANGE COUNTY TO NEAR LEESBURG. SOME OF THE THUNDERSTORMS WERE PRODUCING FREQUENT LIGHTNING...VERY HEAVY RAIN AND BRIEFLY STRONG AND GUSTY WINDS OF 30 TO 40 KTS. RESIDENTS AND BOATERS NEAR THE THUNDERSTORMS SHOULD CONTINUE TO BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. THE LINE WAS MOVING SOUTHEAST AT 20 MILES AN HOUR. ELSEWHERE...A FEW THUNDERSTORMS WERE DEVELOPING IN PUTNAM AND NORTHWEST OSCEOLA COUNTIES. FOR THE NEXT HOUR THE THUNDERSTORMS WILL MOVE SOUTHWARD AND AFFECT MUCH OF BR9EVARD COUNTY AND ITS ADJACENT WATERS...AND ALSO THE ORLANDO AREA.
Special weather statement, Jun 11, 3:40 PM EDT, 36 minutes before
FLZ006>17-20-112045- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DAYTONA BEACH FL 335 PM EDT MON JUN 11 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MUCH OF CENTRAL FLORIDA UNTIL 900 PM EDT. THIS WATCH INCLUDES VOLUSIA..FLAGLER AND MARION COUNTIES. AT 330 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED AN AREA OF VERY STRONG THUNDERSTORMS THAT REACHED FROM DUNNELLON IN MARION COUNTY SOUTHEAST TO ORLANDO AND COCOA BEACHt AND THE ADJACENT COASTAL WATERS. THE AREA ALSO REACHED FARTHER SOUTH TO LAKE WALES AND FT. PIERCE. THUNDERSTORMS WERE MOVING SOUTHEAST AT 20 MPH.
Special weather statement, Jun 11, 3:52 PM EDT, 24 minutes before
FLZ011-016-017-112045- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 345 PM EDT MON JUN 11 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM EDT FOR MUCH OF EAST CENTRAL FLORIDA... ...THE SEVERE THUNDERSTORM WARNING FOR LAKE COUNTY IS EXPIRED... AT 335 PM SCATTERED TO NUMEROUS THUNDERSTORMS WERE OVER MUCH OF ORANGE COUNTY AND EXTENDED INTO LAKE COUNTY. OTHER SCATTERED SHOWERS AND THUNDERSTORMS WERE ALONG AND 50 MILES OFFSHORE BREVARD AND INDIAN RIVER COUNTIES. THERE HAVE BEEN NO REPORTS OF SEVERE WEATHER DURING THE PAST HOUR...BUT RESIDENTS AND BOATERS SHOULD STILL BE ON THE LOOKOUT. SOME OF THE THUNDERSTORMS WERE PRODUCING FREQUENT LIGHTNING IN ADDITION TO VERY HEAVY RAINS AND STRONG WIND GUSTS. MOVEMENT WAS SOUTHEAST AT 20 MILES AN HOUR. ELSEWHERE...SCATTERED SHOWERS AND THUNDERSTORMS WERE OVER OSCEOLA...INDIAN RIVER AND POLK COUNTIES. FOR THE NEXT HOUR THE THUNDERSTORMS WILL~ CONTINUE TO MOVE THROUGH MUCH OF THE SOUTHERN HALF OF THE LISTENING AREA.
Special weather statement, Jun 11, 4:12 PM EDT, 4 minutes before
FLZ009-012-112015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DAYTONA BEACH FL 410 PM EDT MON JUN 11 1990 A SEVERE THUNDERSTORM WATCH IS NO LONGER IN EFFECT FOR FLAGLER...VOLUSIA... AND MARION COUNTIES. A SEVERE THUNDERSTORM WATCH HOWEVER DOES REMAIN IN EFFECT FOR MOST OF CENTRAL AND SOUTH FLORIDA UNTIL 900 PM. STRONG THUNDERSTORMS THAT HAD FORMED OVER NORTH CENTRAL FLORIDA HAD ALL MOVED SOUTHEAST AND WERE NOW MOSTLY SOUTH OF A LINE FROM ORLANDO TO COCOA. THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 20 MPH.
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 2:30 PM EDT | Severe Thunderstorm Warning | MLB | Lake | 60 min |
| Jun 11, 4:44 PM EDT | Severe Thunderstorm Warning | MLB | Okeechobee, Saint Lucie | 46 min |
| Jun 11, 5:41 PM EDT | Severe Thunderstorm Warning | MLB | Palm Beach | 49 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1990Every severe thunderstorm warning in 1990
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.