Alert archive / Florida / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 7, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Feb 22, 1993, 1:22 PM EST for Lake County, Florida. It was in force for 68 min.
The area
The counties it named.
The facts
- Issued
- Feb 22, 1993, 1:22 PM EST (18:22 UTC)
- Expired
- Feb 22, 1993, 2:30 PM EST
- In force
- 68 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Lake County, FL
The radar
The Melbourne radar (KMLB), 126 km from the middle of the area, began a volume at 18:22 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, 6.4 hours before the alert went out and 136 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
- 926 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 648 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 260 m²/s²
- 0-3 km storm-relative helicity
- 263 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMLB 221824 SVRMLB FLC069-221930- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 122 PM EST MON FEB 22 1993 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 230 PM EST FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL FLORIDA ...LAKE COUNTY AT 120 PM...RADAR INDICATED A SEVERE THUNDERSTORM AROUND LISBON. THE STORM WAS MOVING NORTHEAST AT 40 MPH AND WILL BE MOVING ACROSS NORTHERN LAKE COUNTY DURING THE NEXT HALF HOUR. OTHER STRONG STORMS WERE INDICATED SOUTHWEST OF LEESBURG...THEREFORE PEOPLE ACROSS ALL OF LAKE COUNTY SHOULD BE PREPARED TO SEED SHELTER AS THESE THUNDERSTORMS PASS DURING THE NEXT HOUR OR SO. 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 A STRONG BUILDING. HEAVY VRAINS 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, Feb 22, 11:05 AM EST, 2 hours 17 minutes before
FLZ012-221730-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
1105 AM EST MON FEB 22 1993
...STRONG THUNDERSTORMS MOVING THROUGH FLAGLER COUNTY...
STRONG THUNDERSTORMS WERE LOCATED ACROSS FLAGLER COUNTY FROM JUST WEST
OF MARINELAND TO BUNNELL AND WERE RAPIDLY EAST 45 MPH AND WILL REACH
THE ATLANTIC COASTAL WATERS IN LESS THAN 30 MINUTES. A SPECIAL MARINE
WARNING WILL BE ISSUED.
THESE STRONG THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG AND GUSTY
WIND...VERY HEAVY RAINFALL...POSSIBLE HAIL AND DANGEROUS LIGHTNING.
ADDITIONAL THUNDERSTORMS...SOME STRONG WITH VERY HEAVY RAIN...WILL
AFFECT THE FLAGLER AND VOLUSIA COUNTY AREA DURING THE MAJOR PART OF
THIS AFTERNOON.Special weather statement, Feb 22, 12:12 PM EST, 1 hour 10 minutes before
FLZ017-011-016-221815- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 1210 PM EST MON FEB 22 1993 ...SEVERE THUNDERSTORM WATCH FOR EAST CENTRAL FLORIDA UNTIL 7 PM... AT 1210 PM...A LINE OF STRONG THUNDERSTORMS EXTENDED FROM ABOUT FLAGLER BEACH ACROSS LAKE GEORGE TO THE WEST COAST BETWEEN CRYSTAL RIVER AND NEW PORT RICHEY. THUNDERSTORMS WERE MOVING EAST AT 40 MPH ...WHILE THE LINE WAS SLIDING SOUTHEAST AT ABOUT 10 MPH. THE OUTLOOK THROUGH 2 PM...THIS LINE OF STORMS SHOULD AFFECT AREAS FROM AROUND DAYTONA BEACH ACROSS THE OCALA NATIONAL FOREST TO LEESBURG. A SEVERE THUNDERSTORM WATCH MEAN CONDITIONS ARE FAVORABLE FOR DAMAGING WINDS AND HAIL IN SO~ME OF THE THUNDERSTORMS. PEOPLE SHOULD KEEP ABREAST OF THE LATEST STATEMENTS AND POSSIBLE WARNINGS AS THE LINE OF THUNDERSTORMS MOVES ACROSS EAST CENTRAL FLORIDA.
Special weather statement, Feb 22, 1:20 PM EST, 2 minutes before
FLZ011-016-017-221915 SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 115 PM EST MON FEB 22 1993 ...STRONG THUNDERSTORMS BEGINNING TO AFFECT LAKE COUNTY... AT 115 PM...A LINE OF THUNDERSTORMS EXTENDED FROM NEAR ORMOND BEACH ACROSS THE OCALA NATIONAL FOREST TO NEAR LEESBURG. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 40 TO 45 MPH WHILE THE LINE WAS MOVING SOUTHEAST AT ABOUT 10 MPH. THE THUNDERSTORMS WITH THE HEAVIEST RAIN AT THIS TIME WERE FROM AROUND UMATILLA TO SOUTHWEST OF LEESBURG. THOSE ACROSS LAKE COUNTY SHOULD BE ESPECIALLY ALERT DURING THE NEXT HOUR OR SO AS THESE THUNDERSTORMS MOVE RAPIDLY THROUGH. A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNPTIL 7 PM...THEREFORE PEOPLE ACROSS ALL OF EAST CENTRAL FLORIDA SHOULD BE ALERT FOR THREATENING WEATHER AS THIS LINE OF THUNDERSTORMS SLIDES SOUTHEASTWARD ACROSS THE AREA.
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 22, 1:54 PM EST | Severe Thunderstorm Warning | MLB | Orange, Seminole | 66 min |
| Feb 22, 2:10 PM EST | Severe Thunderstorm Warning | MLB | Volusia | 65 min |
| Feb 22, 5:36 PM EST | Severe Thunderstorm Warning | MLB | Martin, Saint Lucie | 54 min |
| Feb 22, 6:00 PM EST | Severe Thunderstorm Warning | MLB | Okeechobee | 45 min |
| Feb 22, 6:46 PM EST | Severe Thunderstorm Warning | MLB | Martin, Okeechobee, Saint Lucie | 44 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1993Every severe thunderstorm warning in 1993
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.