Alert archive / Florida / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 4, NWS Tallahassee, FL

February 6, 1986Okaloosa County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Feb 6, 1986, 12:45 AM CST for Okaloosa County, Florida. It was in force for 75 min.

The area

The counties it named.

The facts

Issued
Feb 6, 1986, 12:45 AM CST (06:45 UTC)
Expired
Feb 6, 1986, 2:00 AM CST
In force
75 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

County Okaloosa 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

Apalachicola Mun, FL (KAQQ), launched 00:00Z, 6.8 hours before the alert went out and 185 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, Apalachicola Mun, FL at 00:00Z on 1986-02-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1169 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, Apalachicola Mun, FL at 00:00Z on 1986-02-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 square meters per square second.1939587897Sfc1 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
1169 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
595 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.1

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 5, 11:40 PM CSTSevere Thunderstorm WarningTAEEscambia, Santa Rosa80 min
Feb 6, 2:03 AM CSTSevere Thunderstorm WarningTAEEscambia, Santa Rosa57 min
Feb 6, 3:15 AM CSTSevere Thunderstorm WarningTAEOkaloosa, Walton75 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.