Alert archive / Florida / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 40, NWS Melbourne, FL

March 25, 1992Lake County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 25, 1992, 7:10 PM EST for Lake County, Florida. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Mar 25, 1992, 7:10 PM EST (00:10 UTC)
Expired
Mar 25, 1992, 8:15 PM EST
In force
65 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 00:11 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

Cape Canaveral, FL (KXMR), launched 00:00Z, 0.2 hours before the alert went out and 123 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.

Skew-T log-pSkew-T log-p diagram, Cape Canaveral, FL at 00:00Z on 1992-03-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 38 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 00:00Z on 1992-03-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 173 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
38 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
878 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
173 m²/s²
0-3 km storm-relative helicity
475 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMLB 260010
SVRMLB
FLC069-260115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
710 PM EST WED MAR 25 1992
 
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  815 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL FLORIDA
 
   ...LAKE COUNTY
 
AT 710 PM EST...WEATHER RADAR INDICATED SEVERE THUNDERSTORMS
CONTINUING IN LAKE COUNTY...MAINLY NEAR ASTATULA...JUST NORTH OF
CLERMONT...AND 3 MILES WEST OF MASCOTTE. THESE STORMS WERE MOVING
SOUTHEAST AT 30 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 A STRONG BUILDING. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THpUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE READY TO GO
TO A SAFE PLACE IF SEVERE THUNDERSTORMS MOVE TOWARD YOUR AREA,
ESPECIALLY IF YOU LIVE IN A MOBILE HOME.

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 25, 5:26 PM EST, 1 hour 44 minutes before
FLZ017-011-016-012-009-252330-

SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE
NATIONAL WEATHER SERVICE MELBOURNE FL
524 PM EST WED MAR 25 1992

...A TORNADO WATCH IS IN EFFECT FOR ALL OF EAST CENTRAL FLORIDA AND
THE ADJACENT COASTAL WATERS UNTIL 10 PM...

THE TORNADO WATCH INCLUDES THE FOLLOWING COUNTIES IN EAST
CENTRAL FLORIDA...LAKE...ORANGE...OSCEOLA...SEMINOLE...BREVARD...
INDIAN RIVER...AND THE ADJACENT COASTAL WATERS.

AT 520 PM A LINE OF SEVERE THUNDERSTORMS EXTENDED FROM LEVY COUNTY
TO GAINESVILLE TO SOUTH OF JACKSONVILLE. THESE STORMS WERE MOVING
EAST AT 30 MPH AND WILL BE MOVING INTO MARION AND PUTNAM COUNTIES
BETWEEN 6 AND 7 PM.

OTHER THUNDERSTORMS PRODUCING VERY HEAVY RAIN WERE FROM AROUND
LAKE OKEECHOBEE INTO SOUTHERN POLK COUNTY. THESE STORMS WERE
DEVELOPING NORTHWARD AT 10 MPH.

A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND
SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN
THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND
LISTEN TO NOAA WEATHER RADIO OR LOCAL BROADCASTING FOR POSSIBLE
WARNINGS.
Special weather statement, Mar 25, 5:29 PM EST, 1 hour 41 minutes before
FLZ017-011-016-012-009-252330-

SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE
NATIONAL WEATHER SERVICE MELBOURNE FL
524 PM EST WED MAR 25 1992

...A TORNADO WATCH IS IN EFFECT FOR ALL OF EAST CENTRAL FLORIDA AND
THE ADJACENT COASTAL WATERS UNTIL 10 PM...

THE TORNADO WATCH INCLUDES THE FOLLOWING COUNTIES IN EAST
CENTRAL FLORIDA...LAKE...ORANGE...OSCEOLA...SEMINOLE...BREVARD...
INDIAN RIVER...AND THE ADJACENT COASTAL WATERS.

AT 520 PM A LINE OF SEVERE THUNDERSTORMS EXTENDED FROM LEVY COUNTY
TO GAINESVILLE TO SOUTH OF JACKSONVILLE. THESE STORMS WERE MOVING
EAST AT 30 MPH AND WILL BE MOVING INTO MARION AND PUTNAM COUNTIES
BETWEEN 6 AND 7 PM.

OTHER THUNDERSTORMS PRODUCING VERY HEAVY RAIN WERE FROM AROUND
LAKE OKEECHOBEE INTO SOUTHERN POLK COUNTY. THESE STORMS WERE
DEVELOPING NORTHWARD AT 10 MPH.

A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND
SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN
THESE AREAcS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND
LISTEN TO NOAA WEATHER RADIO OR LOCAL BROADCASTING FOR POSSIBLE
WARNINGS.
Local storm report, Mar 25, 5:44 PM EST, 1 hour 26 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
542 PM EST WED MAR 25 1992

538 PM EST...OFF DUTY SHERRIFS OFFICER REPORTS HAIL APPROXIMATELY
             ONE INCH IN DIAMETER...WIND GUSTS TO 60 MPfH IN THE
             TOWN OF ROMEO IN WESTERN MARION COUNTY AT 538 PM EST.

             RUMORS OF FUNNEL CLOUDS BUT NOT CONFIRMED ATR THIS TIME.
Local storm report, Mar 25, 5:50 PM EST, 1 hour 20 minutes before
STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
550 PM EST WED MAR 25 1992

538 PM EST...OFF DUTY SHERRIFS OFFICER REPORTS HAIL APPROXIMATELY
             ONE INCH IN DIAMETER...WIND GUSTS TO 60 MPH IN THE
             TOWN OF ROMEO IN WESTERN MARION COUNTY AT 538 PM EST.

             RUMORS OF FUNNEL CLOUDS BUT NOT CONFIRMED ATR THIS TIME.

             SEVER THUNDERSTORM WARNING IN EFFECT FOR MARION COUNTY
             515 TO 615 PM EST.
Special weather statement, Mar 25, 5:57 PM EST, 1 hour 13 minutes before
FLZ017-011-016-012-009-260000-

SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE
NATIONAL WEATHER SERVICE MELBOURNE FL
552 PM EST WED MAR 25 1992

...TORNADO WATCH FOR ALL OF EAST CENTRAL FLORIDA AND THE ADJACENT
COASTAL WATERS UNTIL 10 PM...

AT 550 PM SEVERE THUNDERSTORMS WERE FROM INVERNESS TO SOUTH OF
GAINESVILLE. ONE INCH HAIL AND WIND GUSTS TO 60 MPH HAVE BEEN
REPORTED WITH THESE STORMS IN MARION COUNTY...AND HAIL HAS
BEEN REPORTED IN LEVY AND CITRUS COUNTIES. THESE THUNDERSTORMS
WILL MOVE INTO LAKE COUNTY BY 7 PM. PERSONS IN LAKE COUNTY SHOULD
BE ON THE LOOKOUT FOR THREATENING WEATHER AND BE PREPARED TO
TAKE APPROPRIATE ACTION IF A SEVERE THUNDERSTORM WARNING IS
ISSUED.

ELSEWHERE OwVER EAST CENTRAL FLORIDA LIGHT SHOWERS WERE OVER SOUTHERN
OSCEOLA COUNTY AND ALONG THE COAST NEAR VERO BEACH.
Local storm report, Mar 25, 6:26 PM EST, 44 minutes before
STORM REPORT...UPDATED
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
625 PM EST WED MAR 25 1992

538 PM EST...OFF DUTY SHERRIFS OFFICER REPORTS HAIL APPROXIMATELY
             ONE INCH IN DIAMETER...WIND GUSTS TO 60 MPH IN THE
             TOWN OF ROMEO IN WESTERN MARION COUNTY AT 538 PM EST.

             RUMORS OF FUNNEL CLOUDS BUT NOT CONFIRMED ATR THIS TIME.

             SEVER THUNDERSTORM WARNING IN EFFECT FOR MARION COUNTY
             515 TO 615 PM EST.

605 PM EST...MARION COUNTY SHERIFFS OFFICE REPORTS ONE TREE DOWN ON
             MOBILE HOME NO INJURIES...POWER OUTAGES...NUMEROUS
             REPORTS OF OTHER TREES DOWN...EXTREMELY HIGH WINDS AND
             FREQUENT CLOUD TO GROUND LIGHTNING STRIKES.

The office that day

Everything else NWS Melbourne, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 25, 7:16 PM ESTTornado WarningMLBOrange44 min
Mar 25, 7:22 PM ESTSevere Thunderstorm WarningMLBSeminole53 min
Mar 25, 7:53 PM ESTSevere Thunderstorm WarningMLBOrange67 min
Mar 25, 8:01 PM ESTSevere Thunderstorm WarningMLBSeminole29 min
Mar 25, 8:17 PM ESTSevere Thunderstorm WarningMLBBrevard58 min
Mar 25, 8:44 PM ESTTornado WarningMLBBrevard46 min
Mar 25, 8:52 PM ESTSevere Thunderstorm WarningMLBOrange, Osceola38 min
Mar 25, 9:15 PM ESTSevere Thunderstorm WarningMLBBrevard, Indian River45 min
Mar 25, 9:27 PM ESTSevere Thunderstorm WarningMLBOrange, Osceola63 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.