Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 67, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Aug 10, 2021, 4:30 PM EDT for Edgefield County, South Carolina. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 10, 2021, 4:30 PM EDT (20:30 UTC)
- Expired
- Aug 10, 2021, 5:15 PM EDT
- In force
- 45 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Edgefield County, SC
The radar
The Columbia radar (KCAE), 74 km from the middle of the area, began a volume at 20:32 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, 8.5 hours before the alert went out and 203 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
- 409 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 1050 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- -5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
877
WUUS52 KCAE 102030
SVRCAE
SCC037-102115-
/O.NEW.KCAE.SV.W.0067.210810T2030Z-210810T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
430 PM EDT Tue Aug 10 2021
The National Weather Service in Columbia has issued a
* Severe Thunderstorm Warning for...
Central Edgefield County in central South Carolina...
* Until 515 PM EDT.
* At 430 PM EDT, a severe thunderstorm was located over Edgefield, or
15 miles north of Belvedere, moving east at 5 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Edgefield, Johnston, Edgefield County Airport, Trenton, Lick Fork
Campground, Strom Thurmond High School, Cleora, Harmony, Mt Vintage
and Edgefield Federal Correction Institution.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3385 8205 3388 8185 3386 8183 3387 8182
3384 8177 3372 8177 3364 8188 3367 8206
TIME...MOT...LOC 2030Z 273DEG 5KT 3376 8194
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 2:52 PM EDT | Special Weather Statement | CAE | McCormick | 23 min |
| Aug 10, 2:56 PM EDT | Special Weather Statement | CAE | Newberry | 49 min |
| Aug 10, 3:54 PM EDT | Special Weather Statement | CAE | Edgefield | 51 min |
| Aug 10, 5:20 PM EDT | Special Weather Statement | CAE | Aiken | 40 min |
| Aug 10, 5:52 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Lexington | 38 min |
| Aug 10, 7:08 PM EDT | Special Weather Statement | CAE | Chesterfield | 52 min |
Nearby
Severe 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.