Alert archive / South Carolina / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 76, NWS Columbia, SC

June 24, 2018Aiken County, Edgefield County, McCormick County, South Carolina; Columbia County, Richmond County, Georgia

NWS Columbia, SC issued this severe thunderstorm warning at Jun 24, 2018, 9:11 PM EDT for Aiken County, Edgefield County, McCormick County, South Carolina; Columbia County, Richmond County, Georgia. It was in force for 64 min. 1 report 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 24, 2018, 9:11 PM EDT (01:11 UTC)
Expired: Jun 24, 2018, 10:15 PM EDT
In force: 64 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Columbia County, GA, Richmond County, GA, Aiken County, SC, Edgefield County, SC, McCormick County, SC

The radar

The Columbia radar (KCAE), 82 km from the middle of the area, began a volume at 01:11 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 24, 9:52 PM EDT	TSTM WND DMG	1 Nw North Augusta, SC	MEDIA REPORTS TREES FELL ON 2 CARS AT A HOME ON CADADA COURT IN NORTH AUGUSTA. NO INJURIES.

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 00:00Z, 1.2 hours before the alert went out and 200 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: 1910 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 1310 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 130 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

As transmitted.

758 
WUUS52 KCAE 250111
SVRCAE
GAC073-245-SCC003-037-065-250215-
/O.NEW.KCAE.SV.W.0076.180625T0111Z-180625T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
911 PM EDT SUN JUN 24 2018

The National Weather Service in Columbia has issued a

* Severe Thunderstorm Warning for...
  Northeastern Columbia County in east central Georgia...
  North central Richmond County in east central Georgia...
  Southern Edgefield County in central South Carolina...
  Northwestern Aiken County in central South Carolina...
  Southeastern McCormick County in central South Carolina...

* Until 1015 PM EDT.

* At 911 PM EDT, severe thunderstorms were located along a line
  extending from near Edgefield to 7 miles north of Martinez, moving
  southeast at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  North Augusta, Martinez, Belvedere, Edgefield, Trenton, Murphys
  Estates and Clarks Hill.

This includes the following highways...
 Interstate 20 in Georgia between mile markers 196 and 201.
 Interstate 20 in South Carolina between mile markers 0 and 15.
 Interstate 520 in Georgia near mile marker 1.
 Interstate 520 in South Carolina between mile markers 22 and 23.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection seek shelter inside a sturdy building and stay
away from windows.

&&

LAT...LON 3380 8189 3371 8166 3345 8206 3363 8223
TIME...MOT...LOC 0111Z 305DEG 14KT 3374 8189 3362 8211 

HAIL...<.75IN
WIND...60MPH
 
$$

lm

1 follow-up statement

155 
WWUS52 KCAE 250157
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
957 PM EDT SUN JUN 24 2018

SCC065-250206-
/O.CAN.KCAE.SV.W.0076.000000T0000Z-180625T0215Z/
McCormick SC-
957 PM EDT SUN JUN 24 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MCCORMICK COUNTY
IS CANCELLED...

The storms which prompted the warning have weakened. Therefore, the 
warning has been cancelled.

LAT...LON 3373 8177 3371 8166 3345 8206 3356 8215
TIME...MOT...LOC 0156Z 305DEG 14KT 3365 8173 3353 8195 

$$

GAC073-245-SCC003-037-250215-
/O.CON.KCAE.SV.W.0076.000000T0000Z-180625T0215Z/
Columbia GA-Richmond GA-Edgefield SC-Aiken SC-
957 PM EDT SUN JUN 24 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR EAST CENTRAL COLUMBIA...NORTH CENTRAL RICHMOND...SOUTHEASTERN
EDGEFIELD AND NORTHWESTERN AIKEN COUNTIES...

At 956 PM EDT, severe thunderstorms were located along a line
extending from 7 miles north of Aiken to North Augusta, moving
southeast at 15 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...
North Augusta, Belvedere, Martinez and Murphys Estates. 

This includes the following highways...
 Interstate 20 in Georgia between mile markers 196 and 201.
 Interstate 20 in South Carolina between mile markers 0 and 15.
 Interstate 520 in South Carolina between mile markers 22 and 23.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection seek shelter inside a sturdy building and stay
away from windows.

&&

LAT...LON 3373 8177 3371 8166 3345 8206 3356 8215
TIME...MOT...LOC 0156Z 305DEG 14KT 3365 8173 3353 8195 

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

lm

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 8:00 PM EDT	Special Weather Statement	CAE	Lexington, Richland	45 min
Jun 24, 8:09 PM EDT	Special Weather Statement	CAE	Kershaw	36 min
Jun 24, 8:22 PM EDT	Severe Thunderstorm Warning	CAE	Richland	23 min
Jun 24, 8:38 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Lexington, Richland, Sumter	37 min
Jun 24, 9:09 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Orangeburg, Sumter	36 min
Jun 24, 9:27 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon	33 min
Jun 24, 9:35 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	55 min
Jun 24, 9:40 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Orangeburg	50 min
Jun 24, 10:00 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Barnwell, Orangeburg	60 min
Jun 24, 10:09 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Orangeburg	36 min
Jun 24, 10:30 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Orangeburg	30 min
Jun 24, 10:40 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Orangeburg	35 min
Jun 24, 10:47 PM EDT	Areal Flood Advisory	CAE	Aiken	3 hr
Jun 24, 10:52 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Bamberg, Barnwell, Orangeburg	53 min
Jun 24, 11:42 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Orangeburg	33 min
Jun 25, 2:43 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Richland	47 min
Jun 25, 3:37 PM EDT	Special Weather Statement	CAE	Clarendon	38 min
Jun 25, 3:48 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Lancaster	42 min
Jun 25, 3:51 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield	39 min
Jun 25, 3:52 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Orangeburg	38 min
Jun 25, 4:24 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Lancaster	51 min
Jun 25, 4:56 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield	34 min
Jun 25, 5:34 PM EDT	Severe Thunderstorm Warning	CAE	Lee	26 min
Jun 25, 5:57 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Kershaw, Lee, Sumter	48 min
Jun 25, 6:43 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Richland	32 min
Jun 25, 6:50 PM EDT	Special Weather Statement	CAE	Chesterfield	25 min
Jun 25, 6:57 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Sumter	48 min
Jun 25, 6:57 PM EDT	Severe Thunderstorm Warning	CAE	McCormick	63 min
Jun 25, 7:13 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Lexington, Orangeburg, Richland	32 min
Jun 25, 7:24 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, McCormick	66 min
Jun 25, 7:39 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Lexington, Newberry, Richland, Saluda	66 min
Jun 25, 7:41 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Lexington, Orangeburg, Richland, Sumter	34 min
Jun 24, 8:14 PM EDT	Special Weather Statement	CAE	McDuffie	31 min
Jun 24, 8:25 PM EDT	Severe Thunderstorm Warning	CAE	Columbia, McDuffie	65 min
Jun 24, 9:24 PM EDT	Severe Thunderstorm Warning	CAE	Columbia, Lincoln, McDuffie	51 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2018 Severe Thunderstorm Warnings in Georgia, 2018 Every severe thunderstorm warning in 2018

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.