Alert archive / Georgia / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 19, NWS Charleston, SC

April 29, 2023Liberty County, Long County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Apr 29, 2023, 4:51 PM EDT for Liberty County, Long County, Georgia. It was in force for 39 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: Apr 29, 2023, 4:51 PM EDT (20:51 UTC)
Expired: Apr 29, 2023, 5:30 PM EDT
In force: 39 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Liberty County, GA, Long County, GA

The radar

The Charleston,SC radar (KCLX), 111 km from the middle of the area, began a volume at 20:50 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, 8.9 hours before the alert went out and 195 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: 567 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 1011 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Charleston, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 29, 4:29 PM EDT, 22 minutes earlier.

Area forecast discussion, Apr 29, 4:29 PM EDT, 22 minutes before

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Hazardous weather outlook, Apr 29, 4:38 PM EDT, 13 minutes before

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In the hours before

Special weather statement, Apr 29, 4:45 PM EDT, 6 minutes before

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Special weather statement, Apr 29, 4:48 PM EDT, 3 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 8:44 PM EDT	Special Marine Warning	CHS		87 min
Apr 29, 3:04 AM EDT	Gale Watch	CHS		12 hr
Apr 29, 3:04 AM EDT	Small Craft Advisory	CHS		24 hr
Apr 29, 7:04 AM EDT	Special Marine Warning	CHS		26 min
Apr 29, 3:30 PM EDT	Gale Watch	CHS		12 hr
Apr 29, 3:30 PM EDT	Gale Warning	CHS		29 hr
Apr 29, 4:33 PM EDT	Lake Wind Advisory	CHS	Berkeley	27 hr
Apr 29, 5:55 PM EDT	Special Marine Warning	CHS		50 min
Apr 29, 6:46 PM EDT	Special Marine Warning	CHS		59 min
Apr 29, 7:45 PM EDT	Special Marine Warning	CHS		60 min
Apr 28, 8:43 PM EDT	Special Weather Statement	CHS	McIntosh	32 min
Apr 29, 2:24 AM EDT	Special Weather Statement	CHS	Effingham	36 min
Apr 29, 4:45 PM EDT	Special Weather Statement	CHS	Long	30 min
Apr 29, 4:48 PM EDT	Special Weather Statement	CHS	McIntosh	42 min
Apr 29, 5:33 PM EDT	Special Weather Statement	CHS	Bryan, Liberty, Long	27 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2023 Every severe thunderstorm warning in 2023

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.