Alert archive / South Carolina / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 1, NWS Columbia, SC

March 3, 1991Marion County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Mar 3, 1991, 10:07 AM EST for Marion County, South Carolina. It was in force for 36 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Mar 3, 1991, 10:07 AM EST (15:07 UTC)
Expired: Mar 3, 1991, 10:43 AM EST
In force: 36 min
Issued by: NWS Columbia, SC
Area: Whole counties

County Marion County, SC

What was reported inside it

Time	Report	Where	Remark
Mar 3, 10:07 AM EST	Thunderstorm Wind 0	Marion, SC

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 3.1 hours before the alert went out and 144 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: 0 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 637 m²/s²
0-3 km storm-relative helicity: 883 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

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, Mar 3, 6:02 AM EST, 4 hours 5 minutes before

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Special weather statement, Mar 3, 6:28 AM EST, 3 hours 39 minutes before

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Special weather statement, Mar 3, 6:32 AM EST, 3 hours 35 minutes before

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Special weather statement, Mar 3, 7:22 AM EST, 2 hours 45 minutes before

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Special weather statement, Mar 3, 7:29 AM EST, 2 hours 38 minutes before

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Special weather statement, Mar 3, 8:54 AM EST, 1 hour 13 minutes before

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The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 3, 2:36 PM EST	Tornado Warning	CAE	Fairfield, Newberry	44 min
Mar 3, 5:19 PM EST	Severe Thunderstorm Warning	CAE	Kershaw, Lee	56 min
Mar 3, 5:49 PM EST	Severe Thunderstorm Warning	CAE	Chesterfield	56 min
Mar 3, 5:49 PM EST	Severe Thunderstorm Warning	CAE	Florence	56 min
Mar 3, 6:21 PM EST	Severe Thunderstorm Warning	CAE	Dillon, Marion	69 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 1991 Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.