Alert archive / South Carolina / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 3, NWS Greenville-Spartanburg, SC

March 1, 1991Greenwood County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Mar 1, 1991, 8:44 PM EST for Greenwood County, South Carolina. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Mar 1, 1991, 8:44 PM EST (01:44 UTC)
Expired
Mar 1, 1991, 9:45 PM EST
In force
61 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Greenwood County, SC

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 00:00Z, 1.7 hours before the alert went out and 111 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, Athens Municipal, GA at 00:00Z on 1991-03-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 52 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, Athens Municipal, GA at 00:00Z on 1991-03-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 538 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
52 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
709 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
538 m²/s²
0-3 km storm-relative helicity
737 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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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 Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 1, 10:46 PM ESTSevere Thunderstorm WarningGSPMecklenburg44 min
Mar 1, 11:19 PM ESTSevere Thunderstorm WarningGSPCabarrus, Union41 min
Mar 1, 7:17 PM ESTSevere Thunderstorm WarningGSPAbbeville, Anderson58 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 1991Every severe thunderstorm warning in 1991

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.