Alert archive / Georgia / Mesoscale Discussions in 2022

Mesoscale Discussion 1939

November 10, 202210 counties in Georgia; 7 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Nov 10, 2022, 5:48 PM EST for 10 counties in Georgia; 7 counties in South Carolina. It was in force for 57 min.

The area

The outline as issued.

The facts

Issued: Nov 10, 2022, 5:48 PM EST (22:48 UTC)
Expired: Nov 10, 2022, 6:45 PM EST
In force: 57 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 566

Counties Brantley County, GA, Bryan County, GA, Chatham County, GA, Effingham County, GA, Glynn County, GA, Liberty County, GA, Long County, GA, McIntosh County, GA, Pierce County, GA, Wayne County, GA, Beaufort County, SC, Berkeley County, SC, Charleston County, SC, Colleton County, SC, Dorchester County, SC, Hampton County, SC, Jasper County, SC

The radar

The Charleston,SC radar (KCLX), 77 km from the middle of the area, began a volume at 22:48 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Tornado Watch 567Nov 10, 6:30 PM EST

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 10.8 hours before the alert went out and 141 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 606 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 527 m²/s²
0-3 km storm-relative helicity: 588 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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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 10, 6:02 AM EST	Tornado Watch	SPC	Camden, Glynn	7 hr
Nov 10, 10:01 AM EST	Mesoscale Discussion	SPC	Camden, Glynn	89 min
Nov 10, 12:31 PM EST	Mesoscale Discussion	SPC	Bryan, Chatham, Liberty, McIntosh	89 min
Nov 10, 12:47 PM EST	Tornado Watch	SPC	Brantley, Bryan, Camden, Charlton, Chatham, Effingham and 7 more	6 hr
Nov 10, 6:28 PM EST	Tornado Watch	SPC	Bryan, Bulloch, Burke, Candler, Chatham, Effingham and 3 more	6 hr

Nearby

Mesoscale Discussions in Georgia, 2022 Mesoscale Discussions in South Carolina, 2022 Every mesoscale discussion in 2022

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.