Alert archive / South Carolina / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 2, NWS Charleston, SC

May 1, 1994Berkeley County, Williamsburg County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at May 1, 1994, 5:59 PM EDT for Berkeley County, Williamsburg County, South Carolina. It was in force for 46 min.

The area

The counties it named.

The facts

Issued
May 1, 1994, 5:59 PM EDT (21:59 UTC)
Expired
May 1, 1994, 6:45 PM EDT
In force
46 min
Issued by
NWS Charleston, SC
Area
Whole counties

Counties Berkeley County, SC, Williamsburg County, SC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.0 hours before the alert went out and 297 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, Greensboro/Hi Pt, NC at 12:00Z on 1994-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 298 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, Greensboro/Hi Pt, NC at 12:00Z on 1994-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 215 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
298 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
659 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
215 m²/s²
0-3 km storm-relative helicity
213 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.9

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
May 1, 4:55 PM EDTSevere Thunderstorm WarningCHSCharleston50 min
May 1, 6:47 PM EDTSevere Thunderstorm WarningCHSBerkeley58 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 1994Every severe thunderstorm warning in 1994

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.