Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 17, NWS Columbia, SC

May 3, 2021McCormick County, South Carolina; Lincoln County, Georgia

NWS Columbia, SC issued this severe thunderstorm warning at May 3, 2021, 3:51 PM EDT for McCormick County, South Carolina; Lincoln County, Georgia. It was in force for 39 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 3, 2021, 3:51 PM EDT (19:51 UTC)
Expired: May 3, 2021, 4:30 PM EDT
In force: 39 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Lincoln County, GA, McCormick County, SC

The radar

The Greer radar (KGSP), 106 km from the middle of the area, began a volume at 19:50 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 3, 1:25 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.9 hours before the alert went out and 201 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 674 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 671 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 207 m²/s²
0-3 km storm-relative helicity: 272 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 4.8

Open this sounding in Storm Lab

The text

As transmitted.

171 
WUUS52 KCAE 031951
SVRCAE
GAC181-SCC065-032030-
/O.NEW.KCAE.SV.W.0017.210503T1951Z-210503T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
351 PM EDT Mon May 3 2021

The National Weather Service in Columbia has issued a

* Severe Thunderstorm Warning for...
  Northern Lincoln County in east central Georgia...
  McCormick County in central South Carolina...

* Until 430 PM EDT.

* At 351 PM EDT, a severe thunderstorm was located near Tignall, or
  11 miles north of Washington, moving east at 40 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  McCormick, Lincolnton, Mccormick County Airport, Elijah Clark State
  Park, Parksville, Plum Branch, Hickory Knob State Resort Park,
  Gill's Point, Bordeaux, Hester's Ferry Campground, Broad River
  Campground, Mount Carmel, Baker Creek State Park, Leroy's Ferry
  Recreation Area, Willington, Curry Hill, Mount Carmel Park,
  Chennault, Whitetown and Hawe Creek Campground.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM EDT for east central
Georgia...and central South Carolina.

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 Strom Thurmond move away from the water
and take shelter!

&&

LAT...LON 3398 8261 3396 8257 3402 8259 3407 8253
      3408 8248 3406 8245 3406 8233 3397 8230
      3402 8225 3398 8219 3388 8216 3383 8212
      3377 8217 3378 8257 3383 8260 3386 8257
      3386 8261 3398 8265
TIME...MOT...LOC 1951Z 262DEG 35KT 3389 8268 

HAIL...1.00IN
WIND...60MPH
 
$$

JAQ

The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 3, 2:35 PM EDT	Special Weather Statement	CAE	McCormick	25 min
May 3, 3:05 PM EDT	Tornado Warning	CAE	Newberry	40 min
May 3, 3:24 PM EDT	Severe Thunderstorm Warning	CAE	Newberry, Saluda	51 min
May 3, 3:28 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Saluda	32 min
May 3, 3:32 PM EDT	Severe Thunderstorm Warning	CAE	Newberry	43 min
May 3, 3:39 PM EDT	Tornado Warning	CAE	Lexington	21 min
May 3, 3:59 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Richland	31 min
May 3, 4:03 PM EDT	Severe Thunderstorm Warning	CAE	Kershaw, Richland, Sumter	27 min
May 3, 4:05 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Newberry, Richland, Saluda	40 min
May 3, 4:19 PM EDT	Severe Thunderstorm Warning	CAE	Kershaw, Lee, Sumter	26 min
May 3, 4:22 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Kershaw, Lexington, Richland	23 min
May 3, 4:30 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Richland	15 min
May 3, 4:41 PM EDT	Severe Thunderstorm Warning	CAE	Lee, Sumter	34 min
May 3, 4:44 PM EDT	Severe Thunderstorm Warning	CAE	Kershaw, Lee, Richland, Sumter	31 min
May 3, 4:56 PM EDT	Areal Flood Advisory	CAE	Lexington, Richland	2 hr
May 3, 5:14 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Lee, Richland, Sumter	46 min
May 3, 5:50 PM EDT	Special Weather Statement	CAE	Lee	25 min
May 3, 6:01 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Barnwell	44 min
May 3, 6:44 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Orangeburg	46 min
May 3, 4:27 PM EDT	Severe Thunderstorm Warning	CAE	Burke	48 min
May 3, 5:17 PM EDT	Special Weather Statement	CAE	McDuffie	28 min
May 3, 5:19 PM EDT	Special Weather Statement	CAE	Burke	26 min
May 3, 5:32 PM EDT	Special Weather Statement	CAE	Columbia, McDuffie	28 min
May 3, 5:51 PM EDT	Severe Thunderstorm Warning	CAE	Burke	24 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2021 Severe Thunderstorm Warnings in Georgia, 2021 Every 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.