Alert archive / North Carolina / Mesoscale Discussions in 2020

Mesoscale Discussion 93

February 6, 20209 counties in North Carolina; 9 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Feb 6, 2020, 1:08 PM EST for 9 counties in North Carolina; 9 counties in South Carolina. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: Feb 6, 2020, 1:08 PM EST (18:08 UTC)
Expired: Feb 6, 2020, 2:45 PM EST
In force: 97 min
Issued by: the Storm Prediction Center

Counties Anson County, NC, Chatham County, NC, Hoke County, NC, Lee County, NC, Montgomery County, NC, Moore County, NC, Richmond County, NC, Stanly County, NC, Union County, NC, Abbeville County, SC, Chester County, SC, Chesterfield County, SC, Fairfield County, SC, Greenwood County, SC, Lancaster County, SC, Laurens County, SC, Newberry County, SC, Union County, SC

The radar

The Columbia radar (KCAE), 101 km from the middle of the area, began a volume at 18:08 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.1 hours before the alert went out and 163 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 449 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 310 m²/s²
0-3 km storm-relative helicity: 336 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 6, 9:50 AM EST	Mesoscale Discussion	SPC	Anson, Cabarrus, Catawba, Chatham, Cleveland, Davidson and 13 more	55 min
Feb 6, 10:12 AM EST	Tornado Watch	SPC	Alamance, Anson, Cabarrus, Catawba, Chatham, Cleveland and 20 more	7 hr
Feb 6, 11:01 AM EST	Tornado Watch	SPC	Caswell, Rockingham, Stokes, Surry, Yadkin	2 hr
Feb 6, 11:55 AM EST	Mesoscale Discussion	SPC	Bertie, Camden, Chowan, Currituck, Edgecombe, Franklin and 16 more	65 min
Feb 6, 12:41 PM EST	Tornado Watch	SPC	Beaufort, Bertie, Camden, Chowan, Cumberland, Currituck and 28 more	6 hr
Feb 6, 4:00 PM EST	Mesoscale Discussion	SPC	Bladen, Brunswick, Carteret, Columbus, Craven, Duplin and 5 more	60 min
Feb 6, 4:23 PM EST	Tornado Watch	SPC	Beaufort, Bladen, Brunswick, Carteret, Columbus, Craven and 15 more	9 hr
Feb 6, 11:45 AM EST	Mesoscale Discussion	SPC	Aiken, Allendale, Bamberg, Barnwell, Calhoun, Edgefield and 5 more	90 min
Feb 6, 12:17 PM EST	Tornado Watch	SPC	Aiken, Allendale, Bamberg, Barnwell, Calhoun, Chesterfield and 12 more	8 hr
Feb 6, 2:32 PM EST	Mesoscale Discussion	SPC	Aiken, Allendale, Bamberg, Barnwell, Calhoun, Clarendon and 12 more	58 min
Feb 6, 4:29 PM EST	Mesoscale Discussion	SPC	Aiken, Allendale, Bamberg, Barnwell, Calhoun, Hampton and 5 more	2 hr
Feb 6, 5:30 PM EST	Tornado Watch	SPC	Beaufort, Berkeley, Charleston, Colleton, Dorchester, Hampton and 1 more	7 hr

Nearby

Mesoscale Discussions in North Carolina, 2020 Mesoscale Discussions in South Carolina, 2020 Every mesoscale discussion in 2020

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.