Alert archive / Florida / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 19, NWS Melbourne, FL

June 26, 1990Brevard County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jun 26, 1990, 2:35 PM EDT for Brevard County, Florida. It was in force for 55 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 26, 1990, 2:35 PM EDT (18:35 UTC)
Expired
Jun 26, 1990, 3:30 PM EDT
In force
55 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Brevard County, FL

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Jun 26, 2:37 PM EDTThunderstorm Wind 50Brevard, 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, 6.6 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 1990-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2489 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 1990-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
2489 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
776 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
62 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 261835
SVRMLB
FLC009-261930-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
235 PM EDT TUE JUN 26 1990
 
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  330 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL FLORIDA
 
   ...CENTRAL AND NORTHERN BREVARD COUNTY
 
 
 
 
THE BREVARD COUNTY FIRE DEPARTMENT REPORTED GOLF BALL SIZE HAIL OVER
WEST COCOA AT 230 PM IN A THUNDERSTORM. THESE THUNDERSTORMS WERE
NEARLY STTIONARY.
 
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 26, 1:25 PM EDT, 1 hour 10 minutes before
FLZ017-261830-

SPECIAL MARINE WEATHER AND EAST CENTRAL FLORIDA WEATHER UPDATE
NATIONAL WEATHER SERVICE MELBOURNE FL
124 PM EDT TUE JUN 26 1990

...THUNDERSTORMS DEVELOPING ALONG THE COAST BETWEEN MOSQUITO LAGOON
AND VERO BEACH...

THUNDERSTORMS ARE BEGINNING TO DEVELOP ALONG THE SEA BREEZE WITH
STRONG THUNDERSTORMS NOW OVER EXTREME NORTH BREVARD COUNTY. THE
THUNDERSTORMS WILL BE STRONG AND WILL LIKELY PRODUCE HAIL.

PENNY SIZE HAIL WAS REPORTED IN A THUNDERSTORM NEAR OAK HILL IN
SOUTHERN VOLUSIA COUNTY AROUND 1245 PM.

PEOPLE AND MARINE INTERESTS ALONG THE COASTS OF BREVARD AND INDIAN
RIVER COUNTY SHOULD BE ALERT FOR THREATENING WEATHER AND SEEK SHELTER
IF IT APPROACHES.
Special weather statement, Jun 26, 1:45 PM EDT, 50 minutes before
FLZ006>017-020-061500-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
135 PM EDT TUE JUN 26 1990

THUNDERSTORMS...SOME WITH VERY HEAVY RAINFALL...CONTINUED TO DEVELOPE
ALONG THE ATLANTIC COAST FROM JACKSONVILLE SOUTH TO VERO BEACH.  THE
HEAVIEST RAINFALL WAS JUST NORTH AND SOUTH OF DAYTONA BEACH...AND
NEAR 3/4 INCH HAIL WAS REPORTED FROM THESE STORMS SOUTH OF DAYTONA BEACH
DURING THE LAST HOUR.

ALSO THUNDERSTORMS...RATHER HEAVY RAINFALL...WERE ALONG THE GULF COAST
NEAR NEW PORT RICHEY AND CRYSTAL RIVER.

THESE THUNDERSTORMS SHOULD CONTINUED FOR THE REMAINDER OF THE AFTERNOON
AND COULD CAUSE STRONG SURFACE WINDS...DANGEROUS CLOUD TO GROUND
LIGHTNING AND LOCALLY VERY HEAVY RAINFALL.

LITTLE OR NO MOVEMENT WAS EVIDENT.
ELSEHWERE...RAIN WAS WIDESPREAD OVER THE NORTHERN THIRD OF THE STATE
...STRETCHING OVER THE ATLANTIC FOR OVER 80 MILES.
Special weather statement, Jun 26, 2:24 PM EDT, 11 minutes before
FLZ011-262030-

SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE
NATIONAL WEATHER SERVICE MELBOURNE FL
223 PM EDT TUE JUN 26 1990

...STRONG THUNDERSTORMS DEVELOPING OVER NORTHERN LAKE COUNTY...

STRONG THUNDERSTORMS WERE DEVELOPING OVER NORTHERN LAKE COUNTY...
ESPECIALLY EAST OF MT DORA AND EUSTIS. THE ATMOSPHERE IS VERY
UNSTABLE IN THIS AREA AND THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTWINDS...FREQUENT LIGHTNING STRIKES...AND POSSIBLE HAIL.

THESE THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER THE NORTHERN PORTION
OF LAKE COUNTY AT LEAST THROUGH 430 PM.

PEOPLE SHOULD BE ALERT FOR THREATENING WEATHER AND SEEK SHELTER IF IT
APPROACHES. REPORT ANY SEVERE WEATHER TO LOCAL LAW ENFRCEMENT8.
Special weather statement, Jun 26, 2:31 PM EDT, 4 minutes before
FLZ011-262030-

SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE
NATIONAL WEATHER SERVICE MELBOURNE FL
223 PM EDT TUE JUN 26 1990

...STRONG THUNDERSTORMS DEVELOPING OVER NORTHERN LAKE COUNTY...

STRONG THUNDERSTORMS WERE DEVELOPING OVER NORTHERN LAKE COUNTY...
ESPECIALLY EAST OF MT DORA AND EUSTIS. THE ATMOSPHERE IS VERY
UNSTABLE IN THIS AREA AND THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTWINDS...FREQUENT LIGHTNING STRIKES...AND POSSIBLE HAIL.

THESE THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER THE NORTHERN PORTION
OF LAKE COUNTY AT LEAST THROUGH 430 PM.

PEOPLE SHOULD BE ALERT FOR THREATENING WEATHER AND SEEK SHELTER IF IT
APPROACHES. REPORT ANY SEVERE WEATHER TO LOCAL LAW ENFRCEMENT?.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 12:53 PM EDTSevere Thunderstorm WarningMLBVolusia52 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.