Alert archive / Florida / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 124, NWS Melbourne, FL

October 30, 1994Marion County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Oct 30, 1994, 12:28 PM EST for Marion County, Florida. It was in force for 62 min.

The area

The counties it named.

The facts

Issued: Oct 30, 1994, 12:28 PM EST (17:28 UTC)
Expired: Oct 30, 1994, 1:30 PM EST
In force: 62 min
Issued by: NWS Melbourne, FL
Area: Whole counties

County Marion County, FL

The nearest sounding before it

Jacksonville, FL (KAYS), launched 12:00Z, 5.5 hours before the alert went out and 148 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 360 J/kg
Mixed-layer CIN: -72 J/kg
Mixed-layer LCL: 651 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 103 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDAB 301729 RRA
SVRDAB
FLC083-301830-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
1228 PM EST SUN OCT 30 1994
 
THE NATIONAL WEATHER SERVICE IN DAYTONA BEACH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  130 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL FLORIDA
 
   ...MARION COUNTY
 
NATIONAL WEATHER SERVICE RADAR INDICATES NUMEROUS RAPIDLY DEVELOPING
THUNDERSTORMS ACROSS MARION COUNTY. THESE STORMS WERE MOVING NORTHEAST
AT 20 MPH.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
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.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

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 Oct 30, 9:30 AM EST, 2 hours 58 minutes earlier.

Area forecast discussion, Oct 30, 9:30 AM EST, 2 hours 58 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
930 AM EST SUN OCT 30 1994

88D SHOWING LNE OF STRONG STORMS MOVING ACROSS N FL ATTM. ONLY MINOR
CHANGES TO FCST AS SAO'S SHOWING MSTLY PC SKIES EXCEPT CENTRAL
INTERIOR SECTIONS DUE TO FOG. SINCE TROUGH STILL TO WEST AND THE FACT
THAT IT WILL BE MOVING THRU DURING PRIME HEATING WOULD NOT BE
SURPRISED TO SEE MORE STRONG STORMS ACROSS AREA THIS AFTERNOON (THIS
IS ESPECIALLY TRUE DUE TO THE FACT WE SHOULD SEE MORE SFC HEATING THEN
WE RECEIVED YDAY) AND WILL MENTION IN UPDATE.

@1...VOLUSIA LAKE ORANGE SEMINOLE OSCEOLA
@2...BREVARD INDIAN RIVER ST LUCIE MARTIN OKEECHOBEE

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In the hours before

Special weather statement, Oct 30, 11:05 AM EST, 1 hour 23 minutes before

FLZ041-044>047-053-054-058-059-064-501-301830-

EAST CENTRAL FLORIDA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
1105 AM EST SUN OCT 30 1994

...NUMEROUS THUNDERSTORMS EXPECTED ACROSS EAST CENTRAL FLORIDA WITH
SOME STORMS POSSIBLY SEVERE NORTH OF A MELBOURNE TO FORT MYERS
LINE...

DOPPLER RADARS LATE THIS MORNING INDICATED A FAIRLY STRONG LINE OF
THUNDERSTORMS STRETCHING FROM JACKSONVILLE TO GAINESVILLE TO CRYSTAL
RIVER AND THEN INTO THE GULF OF MEXICO. THIS LINE OF STORMS WAS
ASSOCIATED WITH A UPPER LEVEL STORM SYSTEM MOVING NORTHEASTWARD OUT OF
THE NORTHEAST GULF OF MEXICO. THIS LINE OF STORMS IS EXPECTED TO MOVE
EAST AND MOVE ACROSS EAST CENTRAL FLORIDA THIS AFTERNOON.

SINCE ABUNDANT MOISTURE AND AN UNSTABLE ATMOSPHERE REMAINS OVER THE
REGION...SOME OF THE THUNDERSTORMS COULD BE STRONG WITH A FEW STORMS
BECOMING SEVERE. THE GREATEST CHANCE FOR SEVERE STORMS WILL BE NORTH
OF A LINE FROM MELBOURNE TO FORT MYERS.

RESIDENTS OF EAST CENTRAL FLORIDA SHOULD BE ALERT TO RAPIDLY CHANGING
WEATHER CONDITIONS. STORM SPOTTERS AND HAM RADIO OPERATORS ARE
REQUESTED TO RELAY ANY REPORTS OF SIGNIFICANT WEATHER TO THE NATIONAL
WEATHER SERVICE.

HODANISH

Special weather statement, Oct 30, 11:18 AM EST, 1 hour 10 minutes before

FLZ041-044>047-053-054-058-059-064-501-301830-

EAST CENTRAL FLORIDA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
1105 AM EST SUN OCT 30 1994

...NUMEROUS THUNDERSTORMS EXPECTED ACROSS EAST CENTRAL FLORIDA WITH
SOME STORMS POSSIBLY SEVERE NORTH OF A MELBOURNE TO FORT MYERS
LINE...

DOPPLER RADARS LATE THIS MORNING INDICATED A FAIRLY STRONG LINE OF
THUNDERSTORMS STRETCHING FROM JACKSONVILLE TO GAINESVILLE TO CRYSTAL
RIVER AND THEN INTO THE GULF OF MEXICO. THIS LINE OF STORMS WAS
ASSOCIATED WITH A UPPER LEVEL STORM SYSTEM MOVING NORTHEASTWARD OUT OF
THE NORTHEAST GULF OF MEXICO. THIS LINE OF STORMS IS EXPECTED TO MOVE
EAST AND MOVE ACROSS EAST CENTRAL FLORIDA THIS AFTERNOON.

SINCE ABUNDANT MOISTURE AND AN UNSTABLE ATMOSPHERE REMAINS OVER THE
REGION...SOME OF THE THUNDERSTORMS COULD BE STRONG WITH A FEW STORMS
BECOMING SEVERE. THE GREATEST CHANCE FOR SEVERE STORMS WILL BE NORTH
OF A LINE FROM MELBOURNE TO FORT MYERS.

RRESIDENTS OF EAST CENTRAL FLORIDA SHOULD BE ALERT TO RAPIDLY CHANGING
WEATHER CONDITIONS. STORM SPOTTERS AND HAM RADIO OPERATORS ARE
REQUESTED TO RELAY ANY REPORTS OF SIGNIFICANT WEATHER TO THE NATIONAL
WEATHER SERVICE.

HODANISH

Special weather statement, Oct 30, 12:22 PM EST, 6 minutes before

FLZ041-044>047-053-054-058-059-064-501-301825-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
1223 PM EST SUN OCT 30 1994

...SEVERE THUNDERSTORMS REPORTED ACROSS MARION COUNTY....

...SEVERE WEATHER POSSIBLE ACROSS EAST CENTRAL FLORIDA THIS
AFTERNOON...

AT 1217 PM WEATHER RADAR INDICATED SEVERE THUNDERSTORMS IN MARION
COUNTY MOVING EAST AT 15 MPH. DAMAGE AND A POSSIBLE TORNADO WAS
REPORTED WITH THIS STORM.

CONDITIONS ARE FAVORABLE FOR THE POSSIBILITY OF SEVERE WEATHER
ACROSS EAST CENTRAL FLORIDA THIS AFTERNOON...AND A TORNADO WATCH
HAS BEEN ISSUED FOR THE NORTHERN 2/3 RDS OF EAST CENTRAL FLORIDA.

RESIDENTS ACROSS EAST CENTRAL FLORIDA SHOULD REMAIN ALERT FOR THE
POSSIBILITY OF SEVERE WEATHER OVER THE REGION THIS AFTERNOON. SEEK
SHELTER IF THREATENING WEATHER APPROACHES.

Special weather statement, Oct 30, 12:23 PM EST, 5 minutes before

FLZ041-044>047-053-054-058-059-064-501-301825-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
1223 PM EST SUN OCT 30 1994

...SEVERE THUNDERSTORMS REPORTED ACROSS MARION COUNTY....

...SEVERE WEATHER POSSIBLE ACROSS EAST CENTRAL FLORIDA THIS
AFTERNOON...

AT 1217 PM WEATHER RADAR INDICATED SEVERE THUNDERSTORMS IN MARION
COUNTY MOVING EAST AT 15 MPH. DAMAGE AND A POSSIBLE TORNADO WAS
REPORTED WITH THIS STORM.

CONDITIONS ARE FAVORABLE FOR THE POSSIBILITY OF SEVERE WEATHER
ACROSS EAST CENTRAL FLORIDA THIS AFTERNOON...AND A TORNADO WATCH
HAS BEEN ISSUED FOR THE NORTHERN 2/3 RDS OF EAST CENTRAL FLORIDA.

RESIDENTS ACROSS EAST CENTRAL FLORIDA SHOULD REMAIN ALERT FOR THE
POSSIBILITY OF SEVERE WEATHER OVER THE REGION THIS AFTERNOON. SEEK
SHELTER IF THREATENING WEATHER APPROACHES.

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 30, 11:35 AM EST	Severe Thunderstorm Warning	MLB	Marion	55 min
Oct 30, 11:43 AM EST	Tornado Warning	MLB	Marion	32 min
Oct 30, 12:25 PM EST	Severe Thunderstorm Warning	MLB	Flagler	65 min
Oct 30, 1:06 PM EST	Tornado Warning	MLB	Marion	69 min
Oct 30, 1:35 PM EST	Tornado Warning	MLB	Flagler	55 min
Oct 30, 1:43 PM EST	Severe Thunderstorm Warning	MLB	Lake, Volusia	62 min
Oct 30, 2:06 PM EST	Tornado Warning	MLB	Lake	50 min
Oct 30, 2:23 PM EST	Severe Thunderstorm Warning	MLB	Seminole, Volusia	67 min
Oct 30, 2:28 PM EST	Severe Thunderstorm Warning	MLB	Flagler	62 min
Oct 30, 5:02 PM EST	Severe Thunderstorm Warning	MLB	Saint Lucie	43 min

Nearby

Severe Thunderstorm Warnings in Florida, 1994 Every severe thunderstorm warning in 1994

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.