Alert archive / South Carolina / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 69, NWS Columbia, SC

July 3, 2016Chesterfield County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Jul 3, 2016, 3:25 PM EDT for Chesterfield County, South Carolina. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 3, 2016, 3:25 PM EDT (19:25 UTC)
Expired: Jul 3, 2016, 4:00 PM EDT
In force: 35 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Chesterfield County, SC

The radar

The Columbia radar (KCAE), 117 km from the middle of the area, began a volume at 19:29 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.4 hours before the alert went out and 162 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: 140 J/kg
Mixed-layer CIN: -130 J/kg
Mixed-layer LCL: 605 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 84 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

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.

NWS Columbia, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 3, 1:41 PM EDT, 1 hour 44 minutes earlier.

Area forecast discussion, Jul 3, 1:41 PM EDT, 1 hour 44 minutes before

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Hazardous weather outlook, Jul 3, 3:54 AM EDT, 11 hours 31 minutes before

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In the hours before

Special weather statement, Jul 3, 2:11 PM EDT, 1 hour 14 minutes before

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Special weather statement, Jul 3, 2:13 PM EDT, 1 hour 12 minutes before

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Special weather statement, Jul 3, 2:40 PM EDT, 45 minutes before

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Special weather statement, Jul 3, 2:50 PM EDT, 35 minutes before

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Special weather statement, Jul 3, 3:12 PM EDT, 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
Jul 3, 2:11 PM EDT	Special Weather Statement	CAE	Lee	49 min
Jul 3, 2:13 PM EDT	Special Weather Statement	CAE	Lee	47 min
Jul 3, 2:40 PM EDT	Special Weather Statement	CAE	Sumter	50 min
Jul 3, 2:50 PM EDT	Special Weather Statement	CAE	Chesterfield	40 min
Jul 3, 3:12 PM EDT	Special Weather Statement	CAE	Lee	18 min
Jul 3, 4:46 PM EDT	Special Weather Statement	CAE	Clarendon	59 min
Jul 3, 5:10 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon	50 min
Jul 3, 6:44 PM EDT	Special Weather Statement	CAE	Richmond	61 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2016 Every severe thunderstorm warning in 2016

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; radar from the NEXRAD Level II archive.