Alert archive / Florida / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 60, NWS Melbourne, FL

June 29, 1992Brevard County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jun 29, 1992, 1:48 PM EDT for Brevard County, Florida. It was in force for 57 min. 1 report 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
Jun 29, 1992, 1:48 PM EDT (17:48 UTC)
Expired
Jun 29, 1992, 2:45 PM EDT
In force
57 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Brevard County, FL

What was reported inside it

TimeReportWhereRemark
Jun 29, 2:05 PM EDTHail 0.75Brevard, 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, 5.8 hours before the alert went out and 180 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 1992-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2066 joules per kilogram.LCLEL10008507005003002001001 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 1992-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 square meters per square second.1939Sfc1 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
2066 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
559 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMLB 291750
SVRMLB
FLC009-291845-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
148 PM EDT MON JUN 29 1992
 
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
EFFECTIVE UNTIL  245 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL FLORIDA
 
   ...BREVARD COUNTY
 
  AND FOR MARINE INTERESTS ON THE COASTAL WATERS FROM...
 
   ...SEBASTIAN INLET TO  CAPE CANAVERAL
 
AT 140 PM SEVERE THUNDERSTORMS WERE MOVING ACROSS CENTRAL AND
SOUTHERN BREVARD COUNTY AND WILL MOVE OFFSHORE DURING THE NEXT
HOUR.
 
 
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.
 
BOATERS AND MARINERS IN THE PATH OF THIS STORM SHOULD TAKE
NECESSARY PRECAUTIONS. SEEK SAFE HARBOR IMMEDIATELY IF POSSIBLE.
 
RES

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 29, 11:53 AM EDT, 1 hour 55 minutes before
FLZ006>017-020-291800-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
1155 AM EDT MON JUN 29 1992

...THIS STATEMENT IS FOR MARION COUNTY...

THUNDERSTORMS WERE DEVELOPING OVER THE CENTRAL AND SOUTHWEST PART
OF MARION COUNTY.

THESE THUNDERSTORMS WILL LIKELY PRODUCE STRONG AND GUSTY WINDS...
DANGEROUS LIGHTNING...VERY HEAVY DOWNPOURS AND POSSIBLY SOME HAIL
FOR THE NEXT COUPLE OF HOURS AS THEY MOVE NORTHEAST THROUGH THE
COUNTY.

THE HEAVY DOWNPOURS MAY RESULT IN SOME PONDING OF WATER OVER THE
ROADWAYS AND SOME FLOODING IN THE LOW LYING AREAS THIS AFTERNOON.

ELSEWHERE...THUNDERSTORMS WERE BETWEEN DAYTONA BEACH AND ORLANDO
AND NORTHEAST OF LAKnELAND AND OVER NORTH FLORIDA BETWEEN PALATKA
AND GAINESVILLE.

THESE THUNDERSTOMS WERE INCLUDED IN A LARGE AREA OF RAIN THAT
STRETCHED OUT OVER THE EAST GULF.

MOVEMENT WAS NORTHEAST 20 MPH.
Special weather statement, Jun 29, 12:36 PM EDT, 1 hour 12 minutes before
FLZ017-011-016-012-009-291730-

SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE
NATIONAL WEATHER SERVICE MELBOURNE FL
1234 PM EDT MON JUN 29 1992

...THUNDERSTORMS WITH HEAVY RAIN MOVING OFFSHORE OF INDIAN RIVER
COUNTY...

AT 1230 PM AN AREA OF THUNDERSTORMS WAS ACROSS A GOOD PORTION OF
INDIAN RIVER COUNTY FROM VERO BEACH TO SEBASTIAN AND FELLSMERE.
THESE THUNDERSTORMS WERE MOVING NORTHEAST AT 20 MPH AND WILL AFFECT
THE COASTAL WATERS OF INDIAN RIVER COUNTY FOR THE NEXT COUPLE OF
HOURS. VERY HEAVY RAIN AND GUSTY WINDS CAN BE EXPECTED WITH THESE
STORMS AS THEY MOVE OFFHSORE.

ELSEWHERE SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAIN WERE
SCATTERED FROM ST AUGUSTINE TO GAINESVILLE...SOUTH TO DAYTONA
BEACH...LONGWOOD...ORLANDO...AND CLERMONT. THIS ACTIVITY WILL
MOVE NORTHEAST AT 15 TO 20 MPH AND MOVE ACROSS ORLANDO AND TO
CAPE CANAVERAL BY MID AFTERNOON.

RES
Special weather statement, Jun 29, 12:58 PM EDT, 50 minutes before
FLZ006>017-020-291800-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
101 PM EDT MON JUN 29 1992

...THIS IS A SPECIAL WEATHER STATEMENT FOR FLAGLER...VOLUSIA...
AND MARION COUNTIES...A MARINE WARNING REMAINS IN EFFECT UNTIL 200
PM EDT FOR VOLUSIA COUNTY.

AT 1250 PM EDT NATIONAL WEATHER SERVICE RADAR CONTINUED TO
SHOW STRONG THUNDERSTORMS DEVELOPING ACROSS CENTRAL FLORIDA.
THE STORMS EXTENDED IN A NEARLY SOLID LINE FROM 10 MILES
NORTH OF DAYTONA BEACH INLAND ACROSS SOUTHEAST MARION COUNTY AND
CONTINUING TO THE WEST COAST NEAR CRYSTAL RIVER. STRONG THUNDERSTORMS
WERE ALSO BETWEEN DAYTONA BEACH AND TITUSVILLE AND NEAR SANFORD.

THESE STORMS WILL PRODUCE STRONG GUSTY WINDS...FREQUENT DANGEROUS
LIGHTNING STRIKES...VERY HEAVY RAINS AND POSSIBLY SOME SMALL HAIL
FOR THE NEXT ONE TO TWO HOURS AS THEY MAKE THEIR WAY ACROSS THE
PENINSULA. MARINERS TOO...CAN EXPECT LOCALLY ROUGH SEAS IN THE
VICINITY OF THESE STORMS.

THE STORMS WERE MOVING EAST AT AROUND 20MPH.

A FEW THUNDERSTORMS WERE ALSO OCCURING BETWEEN PALATKA AND
JACKSONVILLE...AND JUST SOUTHWEST OF ORLANDO. RAIN COVERED NEARLY
ALL OF NORTH FLORIDA NORTH OF A LINE FROM COCOA TO TAM8PA.

RESIDENTS ARE ADVISED TO BE PREPARED FOR THE APPROACH OF THESE
STORMS AND SEEK SAFE SHELTER. MOTORISTS ARE ADVISED TO EXERCISE
EXTREME CAUTION IF TRANSITING THESE STORMS AND EXPECT STANDING
WATER ON ROADWAYS.
Special weather statement, Jun 29, 1:29 PM EDT, 19 minutes before
FLZ017-011-016-012-009-291830-

SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE
NATIONAL WEATHER SERVICE MELBOURNE FL
127 PM EDT MON JUN 29 1992

...STRONG THUNDERSTORMS SCATTERED ACROSS MUCH OF EAST CENTRAL
FLORIDA...

AT 125 PM THUNDERSTORMS WITH VERY HEAVY RAIN...STRONG GUSTY WINDS
AND FREQUENT LIGHTNING WERE SCATTERED ACROSS EAST CENTRAL FLORIDA.
THE STRONGEST STORMS WERE OVER INDIAN RIVER COUNTY...WEST OF COCOA
BEACH...AND NORTH OF CAPE CANAVERAL. MARINE INTERESTS ALL ALONG THE
COAST OF EAST CENTRAL FLORIDA SHOULD BE ALERT FOR FAST DEVELOPING
THUNDERSTORMS AND BE READY TO SEEK SAFE HARBOR IF THUNDERSTORMS
THREATEN.

ALL OF THESE THUNDERSTORMS WILL PRODUCE VERY HEAVY RAIN AND PONDING
NOF WATER ON ROADWAYS...WITH FLOODING OF POOR DRAINAGE AREAS POSSIBLE.

FOR THE REST OF THIS AFTERNOON THUNDERSTORMS PRODUCING VERY HEAVY RAIN
WILL CONTINUE ACROSS EAST CENTRAL FLORIDA.

RES

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.