Alert archive / Florida / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 30, NWS Tallahassee, FL

August 31, 1987Escambia County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Aug 31, 1987, 2:25 PM CDT for Escambia County, Florida. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Aug 31, 1987, 2:25 PM CDT (19:25 UTC)
Expired
Aug 31, 1987, 3:30 PM CDT
In force
65 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

County Escambia 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

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 7.4 hours before the alert went out and 82 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, Eglin AFB/Valpar, FL at 12:00Z on 1987-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2881 joules per kilogram.LCLEL10008507005003002001001 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, Eglin AFB/Valpar, FL at 12:00Z on 1987-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939Sfc1 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
2881 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
716 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.8

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
Aug 30, 8:20 PM CDTSevere Thunderstorm WarningTAEGrady, Thomas40 min
Aug 31, 2:15 PM CDTSevere Thunderstorm WarningTAEStewart45 min
Aug 31, 3:37 PM CDTSevere Thunderstorm WarningTAERandolph, Terrell68 min

Nearby

Severe Thunderstorm Warnings in Florida, 1987Every severe thunderstorm warning in 1987

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.