Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 70, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Aug 14, 2021, 3:17 PM EDT for Lancaster County, South Carolina. It was in force for 28 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 14, 2021, 3:17 PM EDT (19:17 UTC)
- Expired
- Aug 14, 2021, 3:45 PM EDT
- In force
- 28 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Lancaster County, SC
The radar
The Columbia radar (KCAE), 120 km from the middle of the area, began a volume at 19:18 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.3 hours before the alert went out and 149 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
- 1624 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 954 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
318
WUUS52 KCAE 141917
SVRCAE
SCC057-141945-
/O.NEW.KCAE.SV.W.0070.210814T1917Z-210814T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
317 PM EDT Sat Aug 14 2021
The National Weather Service in Columbia has issued a
* Severe Thunderstorm Warning for...
Northwestern Lancaster County in central South Carolina...
* Until 345 PM EDT.
* At 316 PM EDT, a severe thunderstorm was located over Carowinds, or
8 miles northwest of Indian Land, moving west at 20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Indian Land and Community of Almond Glen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3500 8083 3494 8086 3497 8088 3499 8089
3501 8091 3503 8090 3505 8091 3507 8090
TIME...MOT...LOC 1916Z 070DEG 16KT 3509 8095
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
NS/JQThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 1:12 PM EDT | Special Weather Statement | CAE | Saluda | 33 min |
| Aug 14, 3:07 PM EDT | Special Weather Statement | CAE | Edgefield | 23 min |
| Aug 14, 3:29 PM EDT | Special Weather Statement | CAE | McCormick | 46 min |
| Aug 14, 3:36 PM EDT | Special Weather Statement | CAE | Saluda | 39 min |
| Aug 14, 4:37 PM EDT | Special Weather Statement | CAE | Fairfield, Newberry | 38 min |
| Aug 14, 4:45 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Newberry | 30 min |
| Aug 14, 5:49 PM EDT | Special Weather Statement | CAE | Lee | 26 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.