Alert archive / Georgia / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 79, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Dec 30, 2021, 1:12 PM EST for 4 counties in Georgia; Aiken County, Edgefield County, McCormick County, South Carolina. It was in force for 22 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Dec 30, 2021, 1:12 PM EST (18:12 UTC)
- Expired
- Dec 30, 2021, 1:34 PM EST
- In force
- 22 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Columbia County, GA, Lincoln County, GA, McDuffie County, GA, Richmond County, GA, Aiken County, SC, Edgefield County, SC, McCormick County, SC
The radar
The Columbia radar (KCAE), 116 km from the middle of the area, began a volume at 18:11 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 30, 1:32 PM EST | HAIL 0.25 | 4 Wnw Evans, GA | PUBLIC REPORT OF PEA SIZED HAIL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.2 hours before the alert went out and 206 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.
- Mixed-layer CAPE
- 408 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 451 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 342 m²/s²
- 0-3 km storm-relative helicity
- 348 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.1
The text
As transmitted.
449
WUUS52 KCAE 301812
SVRCAE
GAC073-181-189-245-SCC003-037-065-301900-
/O.NEW.KCAE.SV.W.0079.211230T1812Z-211230T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
112 PM EST Thu Dec 30 2021
The National Weather Service in Columbia has issued a
* Severe Thunderstorm Warning for...
McDuffie County in east central Georgia...
Columbia County in east central Georgia...
Southeastern Lincoln County in east central Georgia...
Northeastern Richmond County in east central Georgia...
Southwestern Edgefield County in central South Carolina...
West central Aiken County in central South Carolina...
Southeastern McCormick County in central South Carolina...
* Until 200 PM EST.
* At 110 PM EST, a severe thunderstorm was located near Wrightsboro,
or near Thomson, moving east at 45 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
North Augusta, Grovetown, Evans, Thomson, Martinez, Augusta,
Clearwater, Belvedere, Edgefield, Harlem, Appling, Clarks Hill
Recreation Area, Midtown, Riverwood, Mistletoe State Park,
Summerville, Wrightsboro, Augusta Mall, Daniel Field and Village
Plaza Shopping Center.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3379 8192 3348 8183 3340 8255 3342 8256
3346 8259 3359 8264
TIME...MOT...LOC 1810Z 256DEG 40KT 3350 8257
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Carpenter1 follow-up statement
885
WWUS52 KCAE 301834
SVSCAE
Severe Weather Statement
National Weather Service Columbia SC
134 PM EST Thu Dec 30 2021
GAC073-181-189-245-SCC003-037-065-301843-
/O.CAN.KCAE.SV.W.0079.000000T0000Z-211230T1900Z/
McDuffie GA-Columbia GA-Lincoln GA-Richmond GA-Edgefield SC-Aiken SC-
McCormick SC-
134 PM EST Thu Dec 30 2021
...THE SEVERE THUNDERSTORM WARNING FOR MCDUFFIE...COLUMBIA...
SOUTHEASTERN LINCOLN...NORTHEASTERN RICHMOND...SOUTHWESTERN
EDGEFIELD...WEST CENTRAL AIKEN AND SOUTHEASTERN MCCORMICK COUNTIES IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However heavy rain is
still possible with this thunderstorm.
LAT...LON 3379 8192 3348 8183 3340 8255 3342 8256
3346 8259 3359 8264
TIME...MOT...LOC 1827Z 256DEG 40KT 3356 8227
$$The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 30, 2:04 PM EST | Special Weather Statement | CAE | Richmond | 41 min |
| Dec 30, 3:53 PM EST | Special Weather Statement | CAE | Burke | 52 min |
| Dec 30, 4:25 PM EST | Severe Thunderstorm Warning | CAE | Burke | 50 min |
| Dec 30, 3:55 AM EST | Special Weather Statement | CAE | Aiken | 50 min |
| Dec 30, 10:08 AM EST | Special Weather Statement | CAE | Aiken | 52 min |
| Dec 30, 10:55 AM EST | Special Weather Statement | CAE | Orangeburg | 50 min |
| Dec 30, 11:48 AM EST | Special Weather Statement | CAE | Dorchester | 27 min |
| Dec 30, 1:04 PM EST | Special Weather Statement | CAE | Bamberg, Barnwell, Calhoun, Orangeburg | 41 min |
| Dec 30, 3:32 PM EST | Special Weather Statement | CAE | Bamberg, Orangeburg | 58 min |
| Dec 30, 3:59 PM EST | Special Weather Statement | CAE | Bamberg | 31 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2021Severe Thunderstorm Warnings in South Carolina, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.