Alert archive / Georgia / Mesoscale Discussions in 2022

Mesoscale Discussion 24

January 2, 202221 counties in Georgia; 4 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Jan 2, 2022, 9:26 PM EST for 21 counties in Georgia; 4 counties in South Carolina. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued
Jan 2, 2022, 9:26 PM EST (02:26 UTC)
Expired
Jan 2, 2022, 10:30 PM EST
In force
64 min
Issued by
the Storm Prediction Center
Concerning
Tornado watch 10
All 25 counties

Appling County, GA, Atkinson County, GA, Bacon County, GA, Brantley County, GA, Bryan County, GA, Camden County, GA, Charlton County, GA, Chatham County, GA, Clinch County, GA, Coffee County, GA, Echols County, GA, Glynn County, GA, Jeff Davis County, GA, Lanier County, GA, Liberty County, GA, Long County, GA, Lowndes County, GA, McIntosh County, GA, Pierce County, GA, Ware County, GA, Wayne County, GA, Beaufort County, SC, Charleston County, SC, Colleton County, SC, Jasper County, SC

The radar

The Charleston,SC radar (KCLX), 113 km from the middle of the area, began a volume at 02:29 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.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 2.4 hours before the alert went out and 197 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-pSkew-T log-p diagram, Charleston AFB, SC at 00:00Z on 2022-01-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 159 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 00:00Z on 2022-01-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 261 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
159 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
580 m above ground
0-6 km bulk shear
86 kt
0-1 km storm-relative helicity
261 m²/s²
0-3 km storm-relative helicity
341 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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.

IssuedProductOfficeCountiesLasted
Jan 2, 7:19 PM ESTMesoscale DiscussionSPCCatoosa, Dade, Fannin, Murray, Walker, Whitfield5 hr
Jan 2, 9:53 PM ESTTornado WatchSPCAppling, Atkinson, Bacon, Brantley, Brooks, Bryan and 22 more5 hr
Jan 2, 11:11 PM ESTMesoscale DiscussionSPCBaldwin, Bleckley, Burke, Columbia, Dodge, Emanuel and 15 more3 hr
Jan 3, 12:17 AM ESTMesoscale DiscussionSPCAppling, Atkinson, Bacon, Berrien, Brantley, Bryan and 23 more118 min
Jan 3, 4:25 AM ESTMesoscale DiscussionSPCBerkeley, Chesterfield, Clarendon, Darlington, Dillon, Dorchester and 9 more3 hr
Jan 3, 5:41 AM ESTTornado WatchSPCDillon, Horry, Marion5 hr

Nearby

Mesoscale Discussions in Georgia, 2022Mesoscale Discussions in South Carolina, 2022Every 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.