Alert archive / Georgia / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 53, NWS Charleston, SC

July 20, 2026Evans County, Tattnall County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Jul 20, 2026, 6:39 PM EDT for Evans County, Tattnall County, Georgia. 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 counties it named.

The facts

Issued: Jul 20, 2026, 6:39 PM EDT (22:39 UTC)
Expired: Jul 20, 2026, 7:13 PM EDT
In force: 34 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon
Hail: 0.0 in
Wind: 60.0 mph

Counties Evans County, GA, Tattnall County, GA

The radar

The Charleston,SC radar (KCLX), 107 km from the middle of the area, began a volume at 22:41 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

Jacksonville, FL (KJAX), launched 12:00Z, 10.7 hours before the alert went out and 180 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: 1245 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 871 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 20, 2:22 PM EDT	Small Craft Advisory	CHS		63 hr
Jul 20, 3:00 PM EDT	Dense Smoke Advisory	CHS	Berkeley	19 hr
Jul 20, 3:03 PM EDT	Special Weather Statement	CHS	Dorchester	27 min
Jul 20, 3:27 PM EDT	Special Weather Statement	CHS	Dorchester	33 min
Jul 20, 5:58 PM EDT	Special Weather Statement	CHS	Tattnall	32 min
Jul 20, 6:25 PM EDT	Special Weather Statement	CHS	Tattnall	35 min
Jul 20, 7:22 PM EDT	Special Weather Statement	CHS	Bulloch, Candler	23 min

Nearby

Severe Thunderstorm Warnings in Georgia, 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.