Alert archive / Florida / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 3, NWS Melbourne, FL

February 8, 1986Lake County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Feb 8, 1986, 10:00 AM EST for Lake County, Florida. It was in force for 2 hr. 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
Feb 8, 1986, 10:00 AM EST (15:00 UTC)
Expired
Feb 8, 1986, 12:00 PM EST
In force
2 hr
Issued by
NWS Melbourne, FL
Area
Whole counties

County Lake 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
Feb 8, 11:30 AM ESTHail 1.75Lake, 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 3.0 hours before the alert went out and 123 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, Cape Canaveral, FL at 12:00Z on 1986-02-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1603 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, Cape Canaveral, FL at 12:00Z on 1986-02-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.19395878Sfc1 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
1603 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
510 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.6

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, Feb 8, 4:31 AM EST, 5 hours 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ORLANDO FL
0430 AM EST SAT FEB 8 1986

EARLY MORNING FOG FORMING OVER CENTRAL FLORIDA WILL REDUCE VISIBILITY TO
LESS THAN 1 MILE IN MOST AREAS OF ORANGE, LAKE AND OSCEOLA COUNTIES, WITH
NEAR ZERO CONDITIONS PARTICULARLY NEAR SUNRISE. THIS CONDITION WILL PERSIST
TO MID-MORNING, AND MOTORISTS SHOULD ALLOW EXTRA TIME FOR TRAVEL.
Special weather statement, Feb 8, 4:36 AM EST, 5 hours 24 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ORLANDO FL
0430 AM EST SAT FEB 8 1986

EARLY MORNING FOG FORMING OVER CENTRAL FLORIDA WILL REDUCE VISIBILITY TO
LESS THAN 1 MILE IN MOST AREAS OF ORANGE,LAKE,SEMINOLE, AND OSCEOLA COUNTIES,
WITH NEAR ZERO CONDITIONS PARTICULARLY NEAR SUNRISE. THIS CONDITION WILL
PERSIST TO MID-MORNING, AND MOTORISTS SHOULD ALLOW EXTRA TIME FOR TRAVEL.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 8, 10:00 AM ESTTornado WarningMLBMarion60 min
Feb 8, 11:10 AM ESTTornado WarningMLBMarion50 min
Feb 8, 12:00 PM ESTSevere Thunderstorm WarningMLBMarion90 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.