Alert archive / Florida / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 43, NWS Melbourne, FL

May 7, 1999Okeechobee County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at May 7, 1999, 8:01 PM EDT for Okeechobee County, Florida. It was in force for 64 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
May 7, 1999, 8:01 PM EDT (00:01 UTC)
Expired
May 7, 1999, 9:05 PM EDT
In force
64 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Okeechobee County, FL

What was reported inside it

TimeReportWhereRemark
May 7, 8:10 PM EDTHail 1Okeechobee, 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 7, 3:00 PM EDTSevere Thunderstorm WatchSPC6 hr

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

NWS Melbourne, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 7, 2:55 PM EDT, 5 hours 6 minutes earlier.

Area forecast discussion, May 7, 2:55 PM EDT, 5 hours 6 minutes before
EAST CENTRAL FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
255 PM EDT FRI MAY 7 1999

CURRENTLY...TSTMS STARTING TO RAPIDLY DEVELOP OVER INTERIOR SECTIONS
AND WILL CONTINUE TO DO SO INTO EVE HOURS AS IT WORKS TOWARD THE E
COAST. SVR STORMS WILL BE POSSIBLE THROUGH AFTN AND EVE WITH VERY
UNSTABLE ATMOSPHERE AND BOUNDARY COLLISIONS...AND SVR TSTM WATCH IS
IN EFFECT FOR EC FL THROUGH 900 PM. COVERAGE OF STORMS ESPECIALLY
INCREASING AS EAST AND WEST COAST BOUNDARIES COLLIDE LATE
AFTERNOON/EVE.

TONIGHT...POPS IN EVE PACKAGE WILL BE TWEAKED LATE AFTN BASED ON
TRENDS BUT SUFFICE TO SAY THAT STRONG TO SEVERE STORMS MAY LINGER
WELL INTO EVE HOURS AND MOVE ACROSS THE EC FL COASTAL WATERS. AFTER
STORMS END JUST SOME LOW CLOUDS AND A FEW PATCHES OF FOG FORMING
LATE NIGHT.

LONG TERM/SAT THROUGH MON ...FRONTAL BOUNDARY OVER NORTH
FLORIDA/PANHANDLE/GA DISSIPATES BY SUNDAY AS UPPER LEVEL SUPPORT
LIFTS NORTHEAST. UPPER LEVEL/SURFACE HIGHS BUILDS IN FROM THE
ATLANTIC AND BAHAMAS. SURFACE RIDGE AXIS STAYS EITHER OVER CENTRAL
FLORIDA OR TO THE NORTH WHICH SHOULD KEEP WINDS OUT OF THE EAST TO
SOUTHEAST THROUGH THE OUTLOOK PERIOD. WEAK PRESSURE GRADIENT WILL
ALLOW SEA BREEZES TO SET UP EACH DAY WITH BOUNDARY COLLISIONS
PRODUCING THUNDERSTORMS IN THE THE AFTERNOON AND EVENING.
TEMPERATURES AT OR ABOVE CLIMO.

MARINE...SURFACE RIDGE AXIS REMAINS OVER OR NORTH OF THE AREA AND KEEPS
WINDS OUT OF THE SOUTH QUADRANT WITH SEA BREEZES ALONG THE COAST.
WINDS GENERALLY 15 KT OR LESS WITH SEAS 4 FT OR LESS.

PRELIM NUMBERS...

DAB BT 068/088 066/089 064 67544
MCO BT 071/089 069/091 065 67444
MLB BT 070/087 069/090 067 67344

.MLB...NONE.

GLITTO/WIMMER

In the hours before

Special weather statement, May 7, 3:00 PM EDT, 5 hours 1 minute before
AMZ550-555-570-575-FLZ041-044>047-053-054-058-059-064-072200-

EAST CENTRAL FLORIDA HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
3 PM EDT FRI MAY 7 1999

...SEVERE THUNDERSTORM WATCH FOR CENTRAL AND SOUTHERN FLORIDA UNTIL
9PM...THUNDERSTORMS DEVELOPING RAPIDLY...

THE ATMOSPHERE OVER EAST CENTRAL FLORIDA IS VERY MOIST AND UNSTABLE.
AT 3 PM THUNDERSTORM ACTIVITY WAS INCREASING RAPIDLY OVER LAKE
COUNTY. DIME SIZE HAIL WAS REPORTED AT HOWEY IN THE HILLS AT 254 PM.
THESE THUNDERSTORMS DEVELOPED ALONG AN OUTFLOW BOUNDARY FROM EARLIER
THUNDERSTORM. OTHER STRONG TO SEVERE THUNDERSTORMS WILL DEVELOP
ALONG THE SEA BREEZE BOUNDARY FROM VOLUSIA COUNTY TO MARTIN COUNTY
AS THE AFTERNOON PROGRESSES. THE SEVERE THUNDERSTORM WATCH COVERS
ALL COUNTIES OF EAST CENTRAL FLORIDA.

THE GREATEST THREAT FOR DAMAGING THUNDERSTORM WINDS...LARGE
HAIL...AND FREQUENT DEADLY LIGHTNING WILL BE OVER LAKE...VOLUSIA...
ORANGE AND SEMINOLE COUNTIES THROUGH 4PM THEN OVER OSCEOLA...BREVARD
AND INDIAN RIVER COUNTIES BETWEEN 4PM AND 7PM. ISOLATED TORNADOES
ARE ALSO POSSIBLE WHERE THUNDERSTORMS INTENSIFY NEAR OUTFLOW
BOUNDARIES AND SEA BREEZE BOUNDARIES. WESTERLY STEERING WINDS WILL
PUSH ALL OF THE THUNDERSTORM ACTIVITY TO THE COASTAL COUNTIES BY
EARLY EVENING AND OUT OVER THE COASTAL WATERS INTO THE EVENING.

RESIDENTS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND
LISTEN FOR LATER STATEMENTS AND WARNINGS. IF SKIES THREATEN...HEAD
INDOORS TO SAFETY BEFORE THE STORM REACHES YOUR LOCATION. IF OUT ON
THE INTRACOASTAL OR NEAR SHORE WATERS... KEEP AN EYE OUT FOR
APPROACHING STORMS AND SEEK SAFE HARBOR BEFORE STORMS REACH YOU. THE
STORMS WILL MOVE OVER THE COASTAL WATERS OF VOLUSIA COUNTY BY 430
PM. SKYWARN SPOTTER NETWORKS ARE REQUESTED TO SELF ACTIVATE AND PASS
ALONG ANY SEVERE WEATHER REPORTS TO THE NATIONAL WEATHER SERVICE.

HAGEMEYER
Special weather statement, May 7, 3:00 PM EDT, 5 hours 1 minute before
AMZ550-555-570-575-FLZ041-044>047-053-054-058-059-064-072200-

EAST CENTRAL FLORIDA HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
3 PM EDT FRI MAY 7 1999

...SEVERE THUNDERSTORM WATCH FOR CENTRAL AND SOUTHERN FLORIDA UNTIL
9PM...THUNDERSTORMS DEVELOPING RAPIDLY...

THE ATMOSPHERE OVER EAST CENTRAL FLORIDA IS VERY MOIST AND UNSTABLE.
AT 3 PM THUNDERSTORM ACTIVITY WAS INCREASING RAPIDLY OVER LAKE
COUNTY. DIME SIZE HAIL WAS REPORTED AT HOWEY IN THE HILLS AT 254 PM.
THESE THUNDERSTORMS DEVELOPED ALONG AN OUTFLOW BOUNDARY FROM EARLIER
THUNDERSTORM. OTHER STRONG TO SEVERE THUNDERSTORMS WILL DEVELOP
ALONG THE SEA BREEZE BOUNDARY FROM VOLUSIA COUNTY TO MARTIN COUNTY
AS THE AFTERNOON PROGRESSES. THE SEVERE THUNDERSTORM WATCH COVERS
ALL COUNTIES OF EAST CENTRAL FLORIDA.

THE GREATEST THREAT FOR DAMAGING THUNDERSTORM WINDS...LARGE
HAIL...AND FREQUENT DEADLY LIGHTNING WILL BE OVER LAKE...VOLUSIA...
ORANGE AND SEMINOLE COUNTIES THROUGH 4PM THEN OVER OSCEOLA...BREVARD
AND INDIAN RIVER COUNTIES BETWEEN 4PM AND 7PM. ISOLATED TORNADOES
ARE ALSO POSSIBLE WHERE THUNDERSTORMS INTENSIFY NEAR OUTFLOW
BOUNDARIES AND SEA BREEZE BOUNDARIES. WESTERLY STEERING WINDS WILL
PUSH ALL OF THE THUNDERSTORM ACTIVITY TO THE COASTAL COUNTIES BY
EARLY EVENING AND OUT OVER THE COASTAL WATERS INTO THE EVENING.

RESIDENTS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND
LISTEN FOR LATER STATEMENTS AND WARNINGS. IF SKIES THREATEN...HEAD
INDOORS TO SAFETY BEFORE THE STORM REACHES YOUR LOCATION. IF OUT ON
THE INTRACOASTAL OR NEAR SHORE WATERS... KEEP AN EYE OUT FOR
APPROACHING STORMS AND SEEK SAFE HARBOR BEFORE STORMS REACH YOU. THE
STORMS WILL MOVE OVER THE COASTAL WATERS OF VOLUSIA COUNTY BY 430
PM. SKYWARN SPOTTER NETWORKS ARE REQUESTED TO SELF ACTIVATE AND PASS
ALONG ANY SEVERE WEATHER REPORTS TO THE NATIONAL WEATHER SERVICE.

HAGEMEYER
Special weather statement, May 7, 7:12 PM EDT, 49 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 4:25 PM EDTSevere Thunderstorm WarningMLBBrevard35 min
May 8, 5:34 PM EDTSevere Thunderstorm WarningMLBBrevard61 min
May 8, 5:53 PM EDTSevere Thunderstorm WarningMLBIndian River62 min

Nearby

Severe Thunderstorm Warnings in Florida, 1999Every severe thunderstorm warning in 1999

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.