Alert archive / South Carolina / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 1, NWS Wilmington, NC

February 12, 2019Darlington County, Marlboro County, South Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Feb 12, 2019, 6:22 PM EST for Darlington County, Marlboro County, South Carolina. It was in force for 38 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: Feb 12, 2019, 6:22 PM EST (23:22 UTC)
Expired: Feb 12, 2019, 7:00 PM EST
In force: 38 min
Issued by: NWS Wilmington, NC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Darlington County, SC, Marlboro County, SC

The radar

The Columbia radar (KCAE), 133 km from the middle of the area, began a volume at 23:22 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

Charleston AFB, SC (KCHS), launched 12:00Z, 11.4 hours before the alert went out and 175 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: 3 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 585 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 231 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 11, 8:52 PM EST	Marine Dense Fog Advisory	ILM		26 hr
Feb 11, 8:53 PM EST	Dense Fog Advisory	ILM	Robeson	10 hr
Feb 12, 3:08 AM EST	Small Craft Advisory	ILM		27 hr
Feb 12, 4:17 PM EST	Dense Fog Advisory	ILM	Brunswick, New Hanover, Pender	7 hr
Feb 12, 5:56 PM EST	Special Weather Statement	ILM	Darlington, Marlboro	64 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2019 Every severe thunderstorm warning in 2019

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.