Alert archive / Florida / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 35, NWS Melbourne, FL

March 25, 1992Lake County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 25, 1992, 6:13 PM EST for Lake County, Florida. It was in force for 62 min. 2 reports 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 25, 1992, 6:13 PM EST (23:13 UTC)
Expired
Mar 25, 1992, 7:15 PM EST
In force
62 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 23:16 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.

What was reported inside it

TimeReportWhereRemark
Mar 25, 6:35 PM ESTHail 1.75Lake, FL
Mar 25, 6:50 PM ESTHail 1Lake, 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 12:00Z, 11.2 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.

Skew-T log-pSkew-T log-p diagram, Tampa Bay, FL at 12:00Z on 1992-03-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 126 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, Tampa Bay, FL at 12:00Z on 1992-03-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 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
126 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
665 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
219 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMLB 252314
SVRMLB
FLC069-260015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
613 PM EST WED MAR 25 1992
 
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL FLORIDA
 
   ...LAKE COUNTY
 
AT 610 PM EST...WEATHER RADAR INDICATED SEVERE THUNDERSTORMS ENTERING
SUMTER COUNTY FROM THE WEST. THE MOST SEVERE STORM WAS JUST NORTH OF
WILDWOOD. THESE STORMS WERE MOVING EAST AT 35 MPH AND WILL BE ENTERING
WEST LAKE COUNTY NEAR LEESBURG AND TAVARES BY 630PM.
 
 
 
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.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNHDERSTORMS 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, 5:13 PM EST, 1 hour before
FLZ017-011-016-012-009-252315-

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

...TORNADO WATCH FOR LAKE COUNTY UNTIL 9 PM...

A TORNADO WATCH IS IN EFFECT FOR LAKE COUNTY UNTIL 9 PM THIS
EVENING. AT 455 PM SEVERE THUNDERSTORMS WERE ALONG A LINE FROM NEAR
CROSS CITY TO GAINESVILLE TO AROUND JACKSONVILLE. THESE
THUNDERSTORMS WERE MOVING EAST SOUTHEAST AT 30 MPH...AND WILL MOVE
INTO NORTHERN MARION COUNTY AFTER 6 PM.

OTHER STRONG THUNDERSTORMS WERE SCATTERED FROM LAKE OKEECHOBEE TO
ARCADIA. THESE STORMS WERE PRODUCING VERY HEAVY RAIN.

THESE THUNDERSTORMS WERE MOVING NORTH AT ABOUT 10 MPH.

DURING THE REST OF THIS EVENING...THUNDERSTORMS WILL CONTINUE TO
INCREASE IN STENGTH OVER PORTIONS OF CENTRAL FLORIDA DURING THE
EVENING. PERSONS SHOULD STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER
WATCHES AND POSSIBLE WARNINGS.
Special weather statement, Mar 25, 5:26 PM EST, 47 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, 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 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, 29 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, 23 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, 16 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.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 25, 5:18 PM ESTSevere Thunderstorm WarningMLBMarion57 min
Mar 25, 6:15 PM ESTSevere Thunderstorm WarningMLBMarion60 min
Mar 25, 6:25 PM ESTSevere Thunderstorm WarningMLBPalm Beach65 min
Mar 25, 6:45 PM ESTSevere Thunderstorm WarningMLBFlagler, Volusia60 min
Mar 25, 6:47 PM ESTSevere Thunderstorm WarningMLBOrange58 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.