Alert archive / North Carolina / Mesoscale Discussions in 2010

Mesoscale Discussion 2103

November 30, 20104 states

The Storm Prediction Center issued this mesoscale discussion at Nov 30, 2010, 9:29 PM EST for 4 states. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued
Nov 30, 2010, 9:29 PM EST (02:29 UTC)
Expired
Nov 30, 2010, 11:00 PM EST
In force
91 min
Issued by
the Storm Prediction Center
All 56 counties

Burke County, GA, Richmond County, GA, Alamance County, NC, Anson County, NC, Cabarrus County, NC, Caswell County, NC, Catawba County, NC, Chatham County, NC, Davidson County, NC, Davie County, NC, Durham County, NC, Forsyth County, NC, Gaston County, NC, Granville County, NC, Guilford County, NC, Iredell County, NC, Lee County, NC, Lincoln County, NC, Mecklenburg County, NC, Montgomery County, NC, Moore County, NC, Orange County, NC, Person County, NC, Randolph County, NC, Richmond County, NC, Rockingham County, NC, Rowan County, NC, Stanly County, NC, Stokes County, NC, Union County, NC, Yadkin County, NC, Aiken County, SC, Barnwell County, SC, Calhoun County, SC, Cherokee County, SC, Chester County, SC, Chesterfield County, SC, Edgefield County, SC, Fairfield County, SC, Kershaw County, SC, Lancaster County, SC, Lee County, SC, Lexington County, SC, Newberry County, SC, Richland County, SC, Saluda County, SC, Sumter County, SC, Union County, SC, York County, SC, City of Danville, VA, City of Martinsville, VA, Franklin County, VA, Halifax County, VA, Henry County, VA, Patrick County, VA, Pittsylvania County, VA

The radar

The Columbia radar (KCAE), 99 km from the middle of the area, began a volume at 02:29 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 2.5 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 00:00Z on 2010-12-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 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, Greensboro/Hi Pt, NC at 00:00Z on 2010-12-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 407 square meters per square second.19395878Sfc1 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
39 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
486 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
407 m²/s²
0-3 km storm-relative helicity
448 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 30, 7:47 PM ESTMesoscale DiscussionSPCColumbia, Glascock, Hancock, Jefferson, Lincoln, McDuffie and 6 more88 min
Nov 30, 9:56 PM ESTTornado WatchSPCBurke, Richmond6 hr
Dec 1, 12:48 AM ESTMesoscale DiscussionSPCAlamance, Caswell, Chatham, Davidson, Durham, Forsyth and 13 more117 min
Dec 1, 1:02 AM ESTMesoscale DiscussionSPCBeaufort, Bertie, Bladen, Brunswick, Carteret, Columbus and 28 more118 min
Dec 1, 2:13 AM ESTTornado WatchSPCAlamance, Bertie, Bladen, Brunswick, Chatham, Columbus and 36 more8 hr
Dec 1, 4:25 AM ESTMesoscale DiscussionSPCBeaufort, Bertie, Bladen, Brunswick, Chowan, Columbus and 29 more2 hr
Dec 1, 5:18 AM ESTMesoscale DiscussionSPCBeaufort, Bertie, Camden, Carteret, Chowan, Craven and 27 more117 min
Dec 1, 6:12 AM ESTTornado WatchSPCBeaufort, Camden, Carteret, Chowan, Currituck, Dare and 7 more4 hr
Dec 1, 7:51 AM ESTMesoscale DiscussionSPCBeaufort, Bertie, Camden, Carteret, Chowan, Craven and 12 more84 min
Dec 1, 3:48 AM ESTTornado WatchSPCArlington, Clarke, Culpeper, Fairfax, Fauquier, Frederick and 14 more7 hr

Nearby

Mesoscale Discussions in North Carolina, 2010Mesoscale Discussions in South Carolina, 2010Mesoscale Discussions in Virginia, 2010Every mesoscale discussion in 2010

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.