Alert archive / South Carolina / Special Weather Statements in 2021
Special Weather Statement, NWS Columbia, SC
NWS Columbia, SC issued this special weather statement at Aug 7, 2021, 6:13 PM EDT for Kershaw County, Lee County, South Carolina. It was in force for 47 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 7, 2021, 6:13 PM EDT (22:13 UTC)
- Expired
- Aug 7, 2021, 7:00 PM EDT
- In force
- 47 min
- Issued by
- NWS Columbia, SC
- Hail
- 0.25 in
- Wind
- 40
Counties Kershaw County, SC, Lee County, SC
The radar
The Columbia radar (KCAE), 77 km from the middle of the area, began a volume at 22:16 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, 10.2 hours before the alert went out and 164 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
- 985 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 715 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.5
The text
As transmitted.
780
WWUS82 KCAE 072213
SPSCAE
Special Weather Statement
National Weather Service Columbia SC
613 PM EDT Sat Aug 7 2021
SCZ022-029-072300-
Kershaw SC-Lee SC-
613 PM EDT Sat Aug 7 2021
...A strong thunderstorm will impact portions of Sumter and lee
counties through 700 PM EDT...
At 612 PM EDT, Doppler radar was tracking a strong thunderstorm over
Camden, moving east at 25 mph.
HAZARD...Winds in excess of 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Camden, Bishopville, Lugoff, Cassatt, Goodale State Park, Bethune,
Lucknow, Manville, North Central High School, Dekalb, North Towne
Square Shopping Center, Antioch, Midway Elementary School and
Woodward Airfield.
This includes Interstate 20 in South Carolina between mile markers 94
and 119.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3421 8070 3439 8068 3451 8033 3443 8033
3439 8029 3436 8029 3435 8028 3411 8020
TIME...MOT...LOC 2212Z 278DEG 21KT 3430 8060
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
$$Nearby
Special Weather Statements in South Carolina, 2021Every special weather statement 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.