Alert archive / North Carolina / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 7, NWS Greenville-Spartanburg, SC

February 21, 1993Macon County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Feb 21, 1993, 8:07 PM EST for Macon County, North Carolina. It was in force for 68 min.

The area

The counties it named.

The facts

Issued: Feb 21, 1993, 8:07 PM EST (01:07 UTC)
Expired: Feb 21, 1993, 9:15 PM EST
In force: 68 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Macon County, NC

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 00:00Z, 1.1 hours before the alert went out and 134 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: NaN m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 478 m²/s²
0-3 km storm-relative helicity: 577 m²/s²
Significant tornado parameter: 0.0
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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Feb 21, 5:43 PM EST, 2 hours 24 minutes before

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Local storm report, Feb 21, 6:48 PM EST, 1 hour 19 minutes before

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Local storm report, Feb 21, 7:21 PM EST, 46 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 21, 7:02 PM EST	Severe Thunderstorm Warning	GSP	Jackson, Macon	58 min
Feb 21, 7:53 PM EST	Severe Thunderstorm Warning	GSP	Clay	67 min
Feb 21, 9:48 PM EST	Severe Thunderstorm Warning	GSP	Oconee	42 min
Feb 21, 10:16 PM EST	Severe Thunderstorm Warning	GSP	Anderson	59 min
Feb 21, 10:43 PM EST	Severe Thunderstorm Warning	GSP	Greenville	47 min
Feb 21, 11:08 PM EST	Tornado Warning	GSP	Laurens	37 min
Feb 21, 11:42 PM EST	Severe Thunderstorm Warning	GSP	Greenwood	48 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 1993 Every severe thunderstorm warning in 1993

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.