Alert archive / Florida / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 9, NWS Melbourne, FL

March 16, 1986Marion County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 16, 1986, 8:41 AM EST for Marion County, Florida. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Mar 16, 1986, 8:41 AM EST (13:41 UTC)
Expired
Mar 16, 1986, 9:30 AM EST
In force
49 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Marion County, FL

The radar

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

The nearest sounding before it

Jacksonville, FL (KAYS), launched 12:00Z, 1.7 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-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 1986-03-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 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, Jacksonville, FL at 12:00Z on 1986-03-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.1939587897117Sfc1 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
10 J/kg
Mixed-layer CIN
-402 J/kg
Mixed-layer LCL
1564 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
185 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

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.

In the hours before

Special weather statement, Mar 16, 3:38 AM EST, 5 hours 3 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
330 AM EST SUN MAR 16 1986

A TORNADO WATCH IS IN EFFECT UNTIL 800AM FOR MARION..FLAGLER..
VOLUSIA..BREVARD AND INDIAN RIVER COUNTIES AND THE ADJACENT COASTAL
WATERS.

NO SEVERE WEATHER HAS BEEN REPORTED DURING THE LAST HOUR..HOWEVER
RAIN AND A FEW EMBEDDED SHOWERS COVERED MOST OF THE PENINSULA FROM
CRYSTAL RIVER AND DAYTONA BEACH SOUTH TO VERO BEACH AND SARAySOTA.

SHOWER MOVEMENT WAS EAST AT 25 TO 30 MPH.
Special weather statement, Mar 16, 4:30 AM EST, 4 hours 11 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
430 AM EST SUN MAR 16 1986

A TORNADO WATCH IS IN EFFECT UNTIL 800AM FOR MARION..FLAGLER..
VOLUSIA..BREVARD AND INDIAN RIVER COUNTIES AND THE ADJACENT COASTAL
WATERS.

NO SEVERE WEATHER HAS BEEN REPORTED DURING THE LAST HOUR..HOWEVER
A COUPLE OF HEAVY SHOWERS WERE JUST WEST OF KISSIMMEE AND NORTH OF
LAKELAND.

A RATHER LARGE AREA OF PRECIPITATION WAS COVERING MOST OF THE FLORIDA
PENINSULA FROM CRYSTAL RIVER AND DAYTONA BEACH SOUTH TO LAKE OKEECHOBEE.

SHOWER MOVEMENT WAS EAST AT 35 MPH.
Special weather statement, Mar 16, 4:55 AM EST, 3 hours 46 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ORLANDO FL
445 AM EST SUN MAR 16 1986

A TORNADO WATCH REMAINS IN EFFECT FOR ALL OF CENTRAL FLORIDA
UNTIL 800 AM THIS SUNDAY MORNING.

NO SEVERE WEATHER HAS BEEN REPORTED TO THIS OFFICE BUT A LARGE AREA
OF RAIN WITH EMBEDDED THUNDERSTORMS EXTENDS FROM DAYTONA BEACH TO
CRYSTAL RIVER SOUTH INTO THE EVERGLADES.  THE THUNDERSTORMS ARE
MOVING TO THE EAST AT 35 MILES AN HOUR.

REMEMBER..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 ALERT FOR THREATENING WEATHER CONDITIONS
AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Mar 16, 5:30 AM EST, 3 hours 11 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
530 AM EST SUN MAR 16 1986

A TORNADO WATCH IS IN EFFECT UNTIL 800AM FOR MARION..FLAGLER..
VOLUSIA..BREVARD AND INDIAN RIVER COUNTIES AND THE ADJACENT COASTAL
WATERS.

NO SEVERE WEATHER HAS BEEN REPORTED DURING THE LAST HOUR. THE
HEAVIEST SHOWERS WERE IN THE GULF JUST SOUTHWEST OF BAYPORT.

THE AREA OF RAIN APPEARED TO BE DECREASING SOMEWHAT IN SIZE AND NOW
COVERED ABOUT ONE HALF OF THE FLORIDA PENINSULA FROM BAYPORT AND
SANFORD SOUTH TO VENICE AND MELBOURNE.

SHOWER MOVEMENT WAS EAST AT 40 MPH.
Special weather statement, Mar 16, 6:46 AM EST, 1 hour 55 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
645 AM EST SUN MAR 16 1986

A TORNADO WATCH IS IN EFFECT UNTIL 800 AM FOR MARION..FLAGLER..
VOLUSIA..BREVARD AND INDIAN RIVER COUNTIES AND THE ADJACENT COASTAL
WATERS.

THUNDERSTORMS WERE OVER WEST CENTRAL FLORDIA IN THE TAMPA BAY AREA
EXTENDING INLAND TO LAKELAND.

THUNDERSTORMS HAD DEVELOPED OVER NORTH FLORIDA ABOUT 25 MILES NORTH
OF CROSS CITY.

RAIN WAS ALONG THE EAST COAST AND OUT OVER THE COASTAL WATERS FROM
CAPE CANAVERAL SOUTH TO VERO BEACH STRETCHING INLAND TO THE ORLANDO
AREA.

MOVEMENT WAS RAPIDLY EAST AT 45 MPH.
Special weather statement, Mar 16, 7:45 AM EST, 56 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
745 AM EST SUN MAR 16 1986

A TORNADO WATCH IS IN EFFECT UNTIL 800 AM FOR MARION..FLAGLER..
VOLUSIA..BREVARD AND INDIAN RIVER COUNTIES AND THE ADJACENT COASTAL
WATERS.

STRONG THUNDERSTORMS WERE ALONG THE GULF COAST AND OUT OVER THE COASTAL
WATERS FROM THE TAMPA BAY AREA NORTH TO BAYPORT.

THUNDERSTORMS WERE OVER THE INTERIOR OF NORTH FLORIDA BETWEEN LAKE
CITY AND JACKSONVILLE AND OVER CENTRAL FLORIDA BETWEEN LAKELAND AND
ORLANDO.

RAIN WAS ALONG THE EAST COAST AND OUT OVER THE COASTAL WATERS FROM
BETWEEN DAYTONA BEACH AND MELBOURNE AND FARTHER SOUTH FROM VERO BEACH
TO FORT PIERCE.

MOVEMENT WAS RAPIDLY EAST AT 45 MPH.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 16, 9:01 AM ESTSevere Thunderstorm WarningMLBMarion29 min
Mar 16, 9:04 AM ESTSevere Thunderstorm WarningMLBFlagler, Volusia66 min
Mar 16, 1:15 PM ESTSevere Thunderstorm WarningMLBVolusia45 min
Mar 16, 1:23 PM ESTSevere Thunderstorm WarningMLBFlagler, Volusia67 min

Nearby

Severe Thunderstorm Warnings in Florida, 1986Every severe thunderstorm warning in 1986

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.