Alert archive / South Carolina / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 6, NWS Charleston, SC

June 18, 1986Colleton County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Jun 18, 1986, 2:25 PM EDT for Colleton County, South Carolina. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Jun 18, 1986, 2:25 PM EDT (18:25 UTC)
Expired
Jun 18, 1986, 3:30 PM EDT
In force
65 min
Issued by
NWS Charleston, SC
Area
Whole counties

County Colleton County, SC

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

Charleston AFB, SC (KCHS), launched 12:00Z, 6.4 hours before the alert went out and 61 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, Charleston AFB, SC at 12:00Z on 1986-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1262 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 1986-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
1262 J/kg
Mixed-layer CIN
-102 J/kg
Mixed-layer LCL
1008 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
-8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Charleston, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 18, 2:25 PM EDTSevere Thunderstorm WarningCHSCharleston39 min
Jun 18, 3:04 PM EDTSevere Thunderstorm WarningCHSBeaufort, Colleton56 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 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.