Alert archive / South Carolina / Special Weather Statements in 2021

Special Weather Statement, NWS Wilmington, NC

December 11, 2021Dillon County, South Carolina

NWS Wilmington, NC issued this special weather statement at Dec 11, 2021, 8:21 PM EST for Dillon County, South Carolina. It was in force for 24 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: Dec 11, 2021, 8:21 PM EST (01:21 UTC)
Expired: Dec 11, 2021, 8:45 PM EST
In force: 24 min
Issued by: NWS Wilmington, NC
Hail: 0.00 in
Wind: 30

County Dillon County, SC

The radar

The Wilmington radar (KLTX), 73 km from the middle of the area, began a volume at 01:24 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

Newport, NC (KMHX), launched 00:00Z, 1.4 hours before the alert went out and 194 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: 46 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 841 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 170 m²/s²
0-3 km storm-relative helicity: 181 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

691 
WWUS82 KILM 120121
SPSILM

Special Weather Statement
National Weather Service Wilmington NC
821 PM EST Sat Dec 11 2021
 
NCZ087-099-SCZ024-120145-
Robeson NC-Columbus NC-Dillon SC-
821 PM EST Sat Dec 11 2021

...Strong thunderstorms will impact portions of southeastern Robeson,
northwestern Columbus and southeastern Dillon Counties through 845 PM
EST...

At 820 PM EST, Doppler radar was tracking strong thunderstorms along
a line extending from Lumberton to near Sellers. Movement was east at
35 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

Locations impacted include...
Lumberton, Dillon, Fairmont, Latta, Lake View, Boardman, Hestertown,
Barnesville, Floydale, Kemper, Smiths, Marietta, Proctorville,
Mcdonald, Orrum and Southeastern Regional Medical Center.

This includes Interstate 95 IN North Carolina between mile markers 9
and 20.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3465 7882 3462 7883 3459 7883 3457 7886
      3454 7886 3452 7885 3452 7886 3451 7885
      3429 7907 3430 7907 3429 7908 3429 7909
      3428 7909 3432 7948 3466 7906
TIME...MOT...LOC 0120Z 267DEG 30KT 3464 7903 3431 7946 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

$$

IGB

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 11, 9:57 PM EST	Small Craft Advisory	ILM		15 hr
Dec 11, 7:47 PM EST	Special Weather Statement	ILM	Dillon	28 min
Dec 11, 8:17 PM EST	Special Weather Statement	ILM	Florence, Marion	28 min
Dec 11, 8:47 PM EST	Special Weather Statement	ILM	Horry, Marion	28 min

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.