Alert archive / South Carolina / Tornado Watches in 2022

Tornado Watch 568

November 11, 20226 counties in North Carolina; 29 counties in South Carolina

The Storm Prediction Center issued this tornado watch at Nov 11, 2022, 12:42 AM EST for 6 counties in North Carolina; 29 counties in South Carolina. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Nov 11, 2022, 12:42 AM EST (05:42 UTC)
Expired
Nov 11, 2022, 8:50 AM EST
In force
8 hr
Issued by
the Storm Prediction Center
Strongest gust expected
50 kt
All 35 counties

Bladen County, NC, Brunswick County, NC, Columbus County, NC, New Hanover County, NC, Pender County, NC, Robeson County, NC, Aiken County, SC, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Beaufort County, SC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Chesterfield County, SC, Clarendon County, SC, Colleton County, SC, Darlington County, SC, Dillon County, SC, Dorchester County, SC, Florence County, SC, Georgetown County, SC, Hampton County, SC, Horry County, SC, Jasper County, SC, Kershaw County, SC, Lancaster County, SC, Lee County, SC, Lexington County, SC, Marion County, SC, Marlboro County, SC, Orangeburg County, SC, Richland County, SC, Sumter County, SC, Williamsburg County, SC

The radar

The Wilmington radar (KLTX), 93 km from the middle of the area, began a volume at 05:47 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 SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
30%
One or more EF2 to EF5 tornadoes
10%
Ten or more severe wind reports
5%
One or more gusts of 65 knots or more
5%
Ten or more severe hail reports
5%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
20%

Warnings issued inside it

4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Nov 11, 1:32 AM ESTTornado WarningCAERichland, Sumter28 min
Nov 11, 3:22 AM ESTTornado WarningCAECalhoun, Lexington, Orangeburg, Richland29 min
Nov 11, 4:04 AM ESTTornado WarningILMFlorence26 min
Nov 11, 7:25 AM ESTTornado WarningILMBladen, Columbus17 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 5.7 hours before the alert went out and 104 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-pSkew-T log-p diagram, Charleston AFB, SC at 00:00Z on 2022-11-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 479 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 00:00Z on 2022-11-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 331 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
479 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
666 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
331 m²/s²
0-3 km storm-relative helicity
400 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 10, 10:43 PM ESTMesoscale DiscussionSPCBrunswick, Columbus, New Hanover, Pender2 hr
Nov 11, 5:36 AM ESTMesoscale DiscussionSPCAlamance, Anson, Beaufort, Bertie, Bladen, Brunswick and 55 more54 min
Nov 11, 6:15 AM ESTTornado WatchSPCAlamance, Anson, Beaufort, Bertie, Bladen, Brunswick and 62 more12 hr
Nov 11, 12:06 PM ESTMesoscale DiscussionSPCBertie, Camden, Chowan, Currituck, Gates, Halifax and 8 more114 min
Nov 11, 2:30 PM ESTMesoscale DiscussionSPCGates, Hertford, Northampton2 hr
Nov 11, 6:05 PM ESTMesoscale DiscussionSPCHalifax, Hertford, Northampton, Vance, Warren85 min
Nov 11, 2:40 AM ESTMesoscale DiscussionSPCBerkeley, Calhoun, Charleston, Clarendon, Dorchester, Kershaw and 6 more2 hr

Nearby

Tornado Watches in South Carolina, 2022Tornado Watches in North Carolina, 2022Every tornado watch in 2022

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.