Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 38, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at May 4, 2021, 4:46 PM EDT for 4 counties in South Carolina. It was in force for 44 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
- May 4, 2021, 4:46 PM EDT (20:46 UTC)
- Expired
- May 4, 2021, 5:30 PM EDT
- In force
- 44 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Fairfield County, SC, Lexington County, SC, Newberry County, SC, Richland County, SC
The radar
The Columbia radar (KCAE), 23 km from the middle of the area, began a volume at 20:48 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 nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 8.8 hours before the alert went out and 179 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
- 573 J/kg
- Mixed-layer CIN
- -149 J/kg
- Mixed-layer LCL
- 1000 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.0
The text
As transmitted.
803
WUUS52 KCAE 042046
SVRCAE
SCC039-063-071-079-042130-
/O.NEW.KCAE.SV.W.0038.210504T2046Z-210504T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
446 PM EDT Tue May 4 2021
The National Weather Service in Columbia has issued a
* Severe Thunderstorm Warning for...
Southwestern Fairfield County in central South Carolina...
Southeastern Newberry County in central South Carolina...
Central Lexington County in central South Carolina...
Northern Richland County in central South Carolina...
* Until 530 PM EDT.
* At 446 PM EDT, severe thunderstorms were located along a line
extending from near Jenkinsville to 7 miles south of Prosperity,
moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Columbia, Lexington, West Columbia, Cayce, Irmo, Forest Acres,
Springdale, St. Andrews, Dentsville, Oak Grove, Highway 6 at Lake
Murray Dam, Red Bank, South Congaree, Pine Ridge, Gaston, Arcadia
Lakes, Columbia International University, Jenkinsville, Harbison
State Forest and Sesquicentennial State Park.
This includes the following highways...
Interstate 126 between mile markers 0 and 3.
Interstate 20 in South Carolina between mile markers 51 and 82.
Interstate 26 between mile markers 84 and 120.
Interstate 77 between mile markers 0 and 26.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection seek shelter inside a sturdy building and stay
away from windows.
Severe thunderstorms can produce large capsizing waves and frequent
lightning. If on or near Lake Murray move away from the water and
take shelter!
&&
LAT...LON 3407 8074 3381 8112 3404 8149 3407 8147
3408 8148 3407 8150 3408 8153 3408 8154
3413 8161 3434 8123
TIME...MOT...LOC 2046Z 284DEG 38KT 3428 8121 3410 8155
HAIL...<.75IN
WIND...60MPH
$$
JAQ1 follow-up statement
151
WWUS52 KCAE 042121
SVSCAE
Severe Weather Statement
National Weather Service Columbia SC
521 PM EDT Tue May 4 2021
SCC039-063-071-079-042131-
/O.EXP.KCAE.SV.W.0038.000000T0000Z-210504T2130Z/
Fairfield SC-Newberry SC-Lexington SC-Richland SC-
521 PM EDT Tue May 4 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN FAIRFIELD...
SOUTHEASTERN NEWBERRY...CENTRAL LEXINGTON AND NORTHERN RICHLAND
COUNTIES WILL EXPIRE AT 530 PM EDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
central South Carolina.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Columbia.
LAT...LON 3407 8074 3381 8112 3404 8149 3407 8147
3408 8148 3407 8150 3408 8153 3408 8154
3413 8161 3434 8123
TIME...MOT...LOC 2121Z 284DEG 38KT 3419 8080 3401 8114
$$
JAQThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 3:29 PM EDT | Special Weather Statement | CAE | Saluda | 31 min |
| May 4, 3:42 PM EDT | Special Weather Statement | CAE | Lexington | 33 min |
| May 4, 3:45 PM EDT | Severe Thunderstorm Warning | CAE | Lexington, Newberry, Richland, Saluda | 45 min |
| May 4, 3:50 PM EDT | Special Weather Statement | CAE | Newberry | 25 min |
| May 4, 3:52 PM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Lexington, Richland | 41 min |
| May 4, 3:54 PM EDT | Special Weather Statement | CAE | McCormick | 36 min |
| May 4, 3:54 PM EDT | Severe Thunderstorm Warning | CAE | Lancaster | 36 min |
| May 4, 4:00 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Newberry, Saluda | 45 min |
| May 4, 4:16 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Kershaw, Lancaster, Newberry, Richland | 59 min |
| May 4, 4:22 PM EDT | Severe Thunderstorm Warning | CAE | Chesterfield, Fairfield, Kershaw, Lancaster, Lee | 53 min |
| May 4, 4:38 PM EDT | Severe Thunderstorm Warning | CAE | Edgefield, McCormick, Saluda | 53 min |
| May 4, 5:03 PM EDT | Severe Thunderstorm Warning | CAE | Chesterfield, Kershaw, Lancaster, Lee | 57 min |
| May 4, 5:30 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Barnwell, Lexington, Orangeburg | 60 min |
| May 4, 6:03 PM EDT | Severe Thunderstorm Warning | CAE | Bamberg, Barnwell, Calhoun, Orangeburg, Richland | 57 min |
| May 4, 6:07 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon, Lee, Richland, Sumter | 53 min |
| May 4, 6:57 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon | 48 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.