Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 50, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Jun 12, 2021, 3:34 PM EDT for 4 counties in South Carolina. It was in force for 26 min. 2 reports 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
- Jun 12, 2021, 3:34 PM EDT (19:34 UTC)
- Expired
- Jun 12, 2021, 4:00 PM EDT
- In force
- 26 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Fairfield County, SC, Lexington County, SC, Newberry County, SC, Richland County, SC
The radar
The Columbia radar (KCAE), 19 km from the middle of the area, began a volume at 19:37 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 |
|---|---|---|---|
| Jun 12, 3:42 PM EDT | TSTM WND DMG | 3 Ne Irmo, SC | NWS EMPLOYEE REPORTS SIDING DAMAGE TO A HOME ON UPPER LOOP WAY WITH MULTIPLE TREES DOWN NEARBY. |
| Jun 12, 3:59 PM EDT | TSTM WND DMG | 4 Ne Gilbert, SC | SC HIGHWAY PATROL REPORTS TREES DOWN NEAR WINDY RD. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 7.6 hours before the alert went out and 175 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
- 313 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 790 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- -20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
891
WUUS52 KCAE 121934
SVRCAE
SCC039-063-071-079-122000-
/O.NEW.KCAE.SV.W.0050.210612T1934Z-210612T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
334 PM EDT Sat Jun 12 2021
The National Weather Service in Columbia has issued a
* Severe Thunderstorm Warning for...
South central Fairfield County in central South Carolina...
Southeastern Newberry County in central South Carolina...
Central Lexington County in central South Carolina...
Northwestern Richland County in central South Carolina...
* Until 400 PM EDT.
* At 334 PM EDT, a severe thunderstorm was located over Ballentine,
or near Irmo, moving southeast at 25 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Columbia, Lexington, West Columbia, Cayce, Irmo, Springdale, St.
Andrews, Highway 6 at Lake Murray Dam, Red Bank, Oak Grove, South
Congaree, Pine Ridge, Harbison State Forest, Columbia Metro
Airport, Ballentine, Chapin, Bundrick Island, Putnam's Landing,
White Rock and Rocky Point Recreation Area.
This includes the following highways...
Interstate 126 between mile markers 0 and 1.
Interstate 20 in South Carolina between mile markers 49 and 65.
Interstate 26 between mile markers 93 and 115.
Interstate 77 between mile markers 0 and 1.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a dangerous storm! Prepare immediately for strong winds
capable of producing significant damage. Seek shelter inside a sturdy
building and stay away from windows.
Excessive cloud to ground lightning is occurring with this storm. If
you can hear thunder, you are close enough to be struck by lightning.
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 3414 8141 3421 8118 3393 8104 3387 8132
TIME...MOT...LOC 1934Z 335DEG 20KT 3410 8124
HAIL...<.75IN
WIND...70MPH
$$1 follow-up statement
216
WWUS52 KCAE 121955
SVSCAE
Severe Weather Statement
National Weather Service Columbia SC
355 PM EDT Sat Jun 12 2021
SCC039-063-071-079-122004-
/O.EXP.KCAE.SV.W.0050.000000T0000Z-210612T2000Z/
Fairfield SC-Newberry SC-Lexington SC-Richland SC-
355 PM EDT Sat Jun 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL FAIRFIELD...
SOUTHEASTERN NEWBERRY...CENTRAL LEXINGTON AND NORTHWESTERN RICHLAND
COUNTIES WILL EXPIRE AT 400 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
LAT...LON 3414 8141 3421 8118 3393 8104 3387 8132
TIME...MOT...LOC 1954Z 335DEG 20KT 3402 8119
$$The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 8:40 PM EDT | Special Weather Statement | CAE | Richland | 35 min |
| Jun 12, 1:36 PM EDT | Special Weather Statement | CAE | Orangeburg | 24 min |
| Jun 12, 1:43 PM EDT | Severe Thunderstorm Warning | CAE | Orangeburg | 47 min |
| Jun 12, 2:04 PM EDT | Special Weather Statement | CAE | McCormick | 56 min |
| Jun 12, 2:21 PM EDT | Severe Thunderstorm Warning | CAE | Newberry | 39 min |
| Jun 12, 2:53 PM EDT | Special Weather Statement | CAE | Edgefield | 52 min |
| Jun 12, 3:28 PM EDT | Special Weather Statement | CAE | Lexington | 32 min |
| Jun 12, 4:40 PM EDT | Special Weather Statement | CAE | Calhoun | 35 min |
| Jun 12, 5:08 PM EDT | Special Weather Statement | CAE | Calhoun, Orangeburg | 37 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.