Alert archive / South Carolina / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 50, NWS Wilmington, NC

July 17, 2026Williamsburg County, South Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Jul 17, 2026, 3:59 PM EDT for Williamsburg County, South Carolina. It was in force for 31 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 17, 2026, 3:59 PM EDT (19:59 UTC)
Expired: Jul 17, 2026, 4:30 PM EDT
In force: 31 min
Issued by: NWS Wilmington, NC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Williamsburg County, SC

The radar

The Wilmington radar (KLTX), 127 km from the middle of the area, began a volume at 19:59 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, 8.0 hours before the alert went out and 84 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: 2049 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 1084 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jul 17, 2:31 PM EDT, 1 hour 28 minutes earlier.

Area forecast discussion, Jul 17, 2:31 PM EDT, 1 hour 28 minutes before

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In the hours before

Special weather statement, Jul 17, 2:30 PM EDT, 1 hour 29 minutes before

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Special weather statement, Jul 17, 2:58 PM EDT, 1 hour 1 minute before

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Special weather statement, Jul 17, 3:36 PM EDT, 23 minutes before

Special Weather Statement
National Weather Service Wilmington NC
336 PM EDT Fri Jul 17 2026

SCZ039-172000-
Williamsburg SC-
336 PM EDT Fri Jul 17 2026

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL WILLIAMSBURG COUNTY
THROUGH 400 PM EDT...

At 336 PM EDT, Doppler radar was tracking a strong thunderstorm near
Kingstree, moving east at 10 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

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

Locations impacted include...
Kingstree, Cades, Morrisville, Salters, and Williamsburg Regional
Hospital.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3373 7991 3382 7973 3382 7971 3381 7969
      3382 7967 3381 7965 3382 7964 3381 7963
      3380 7961 3360 7952 3353 7982
TIME...MOT...LOC 1936Z 250DEG 8KT 3368 7977

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

SHK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 2:20 AM EDT	Heat Advisory	ILM	Bladen, Brunswick, Columbus, New Hanover, Pender, Robeson	18 hr
Jul 17, 4:27 PM EDT	Special Weather Statement	ILM	Pender	33 min
Jul 17, 2:30 PM EDT	Special Weather Statement	ILM	Dillon	30 min
Jul 17, 2:58 PM EDT	Special Weather Statement	ILM	Williamsburg	32 min
Jul 17, 3:36 PM EDT	Special Weather Statement	ILM	Williamsburg	24 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2026 Every severe thunderstorm warning in 2026

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.