Alert archive / North Carolina / Mesoscale Discussions in 2008

Mesoscale Discussion 2163

August 26, 200810 counties in North Carolina; 7 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Aug 26, 2008, 11:18 AM EDT for 10 counties in North Carolina; 7 counties in South Carolina. It was in force for 57 min.

The area

The outline as issued.

The facts

Issued: Aug 26, 2008, 11:18 AM EDT (15:18 UTC)
Expired: Aug 26, 2008, 12:15 PM EDT
In force: 57 min
Issued by: the Storm Prediction Center

Counties Anson County, NC, Bladen County, NC, Columbus County, NC, Hoke County, NC, Mecklenburg County, NC, Richmond County, NC, Robeson County, NC, Scotland County, NC, Stanly County, NC, Union County, NC, Chester County, SC, Chesterfield County, SC, Darlington County, SC, Dillon County, SC, Lancaster County, SC, Marlboro County, SC, York County, SC

The radar

The Columbia radar (KCAE), 145 km from the middle of the area, began a volume at 15:22 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, 3.3 hours before the alert went out and 156 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: 378 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 608 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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.

Issued	Product	Office	Counties	Lasted
Aug 26, 8:16 AM EDT	Mesoscale Discussion	SPC	Clay, Henderson, Macon, Polk, Rutherford, Transylvania	89 min
Aug 26, 10:00 AM EDT	Tornado Watch	SPC	Mecklenburg, Union	9 hr
Aug 26, 2:17 PM EDT	Mesoscale Discussion	SPC	Columbus, Gaston, Mecklenburg, Union	58 min
Aug 26, 4:10 PM EDT	Mesoscale Discussion	SPC	Anson, Cabarrus, Catawba, Chatham, Cleveland, Cumberland and 22 more	65 min
Aug 26, 6:14 PM EDT	Mesoscale Discussion	SPC	Anson, Gaston, Mecklenburg, Union	61 min
Aug 26, 6:52 PM EDT	Tornado Watch	SPC	Anson, Cabarrus, Cleveland, Gaston, Lincoln, Mecklenburg and 7 more	12 hr
Aug 26, 9:37 AM EDT	Mesoscale Discussion	SPC	Abbeville, Aiken, Anderson, Barnwell, Chester, Edgefield and 12 more	23 min

Nearby

Mesoscale Discussions in North Carolina, 2008 Mesoscale Discussions in South Carolina, 2008 Every mesoscale discussion in 2008

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.