Alert archive / South Carolina / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 124, NWS Wilmington, NC

September 28, 2016Marlboro County, South Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Sep 28, 2016, 4:29 PM EDT for Marlboro County, South Carolina. It was in force for 16 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: Sep 28, 2016, 4:29 PM EDT (20:29 UTC)
Expired: Sep 28, 2016, 4:45 PM EDT
In force: 16 min
Issued by: NWS Wilmington, NC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Marlboro County, SC

The radar

The Wilmington radar (KLTX), 134 km from the middle of the area, began a volume at 20:30 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, 8.5 hours before the alert went out and 166 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: 842 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 550 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

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 Wilmington, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 28, 3:40 PM EDT, 49 minutes earlier.

Area forecast discussion, Sep 28, 3:40 PM EDT, 49 minutes before

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Hazardous weather outlook, Sep 28, 5:09 AM EDT, 11 hours 20 minutes before

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In the hours before

Special weather statement, Sep 28, 3:36 PM EDT, 53 minutes before

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Special weather statement, Sep 28, 4:11 PM EDT, 18 minutes before

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The office that day

Everything else NWS Wilmington, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 28, 1:09 AM EDT	Special Weather Statement	ILM	Hoke	36 min
Sep 28, 3:36 PM EDT	Special Weather Statement	ILM	Marlboro	24 min
Sep 28, 4:11 PM EDT	Special Weather Statement	ILM	Marlboro	64 min
Sep 28, 5:11 PM EDT	Special Weather Statement	ILM	Darlington	19 min
Sep 28, 5:38 PM EDT	Special Weather Statement	ILM	Darlington	37 min
Sep 28, 5:46 PM EDT	Special Weather Statement	ILM	Marlboro	59 min
Sep 28, 6:49 PM EDT	Special Weather Statement	ILM	Marlboro	41 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.