Alert archive / South Carolina / Special Weather Statements in 2021

Special Weather Statement, NWS Wilmington, NC

September 7, 2021Georgetown County, South Carolina

NWS Wilmington, NC issued this special weather statement at Sep 7, 2021, 5:56 PM EDT for Georgetown County, South Carolina. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Sep 7, 2021, 5:56 PM EDT (21:56 UTC)
Expired: Sep 7, 2021, 6:30 PM EDT
In force: 34 min
Issued by: NWS Wilmington, NC
Hail: 0.00 in
Wind: 30

County Georgetown County, SC

The radar

The Wilmington radar (KLTX), 121 km from the middle of the area, began a volume at 21:59 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, 9.9 hours before the alert went out and 69 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: 1166 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 927 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Sep 7, 3:07 PM EDT, 2 hours 49 minutes earlier.

Area forecast discussion, Sep 7, 3:07 PM EDT, 2 hours 49 minutes before

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Hazardous weather outlook, Sep 7, 3:18 PM EDT, 2 hours 38 minutes before

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In the hours before

Special weather statement, Sep 7, 2:51 PM EDT, 3 hours 5 minutes before

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Special weather statement, Sep 7, 5:56 PM EDT, 0 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 7, 2:19 PM EDT	Areal Flood Advisory	ILM	Brunswick	71 min
Sep 7, 2:51 PM EDT	Special Weather Statement	ILM	Brunswick	39 min
Sep 7, 7:42 PM EDT	Rip Current Statement	ILM	New Hanover, Pender	24 hr

Nearby

Special Weather Statements in South Carolina, 2021 Every special weather statement in 2021

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.