Alert archive / South Carolina / Mesoscale Discussions in 2008

Mesoscale Discussion 347

March 4, 20088 counties in North Carolina; 16 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Mar 4, 2008, 2:03 PM EST for 8 counties in North Carolina; 16 counties in South Carolina. It was in force for 117 min.

The area

The outline as issued.

The facts

Issued: Mar 4, 2008, 2:03 PM EST (19:03 UTC)
Expired: Mar 4, 2008, 4:00 PM EST
In force: 117 min
Issued by: the Storm Prediction Center

All 24 counties

Anson County, NC, Cabarrus County, NC, Cleveland County, NC, Gaston County, NC, Lincoln County, NC, Mecklenburg County, NC, Stanly County, NC, Union County, NC, Abbeville County, SC, Cherokee County, SC, Chester County, SC, Fairfield County, SC, Greenville County, SC, Greenwood County, SC, Kershaw County, SC, Lancaster County, SC, Laurens County, SC, Lexington County, SC, Newberry County, SC, Richland County, SC, Saluda County, SC, Spartanburg County, SC, Union County, SC, York County, SC

The radar

The Greer radar (KGSP), 78 km from the middle of the area, began a volume at 19:06 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.

Tornado Watch 98Mar 4, 4:30 PM EST

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.1 hours before the alert went out and 206 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: 76 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 578 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 281 m²/s²
0-3 km storm-relative helicity: 331 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
Mar 4, 6:33 AM EST	Mesoscale Discussion	SPC	Beaufort, Bertie, Bladen, Brunswick, Camden, Chowan and 34 more	87 min
Mar 4, 11:17 AM EST	Mesoscale Discussion	SPC	Buncombe, Cherokee, Clay, Graham, Haywood, Henderson and 6 more	118 min
Mar 4, 12:04 PM EST	Tornado Watch	SPC	Buncombe, Cherokee, Clay, Graham, Haywood, Henderson and 5 more	8 hr
Mar 4, 2:30 PM EST	Mesoscale Discussion	SPC	Cherokee, Clay, Graham, Haywood, Jackson, Macon and 2 more	90 min
Mar 4, 4:31 PM EST	Tornado Watch	SPC	Alamance, Alexander, Alleghany, Anson, Ashe, Avery and 53 more	8 hr
Mar 4, 5:48 PM EST	Mesoscale Discussion	SPC	Bladen, Brunswick, Columbus, Robeson	57 min
Mar 4, 5:53 PM EST	Tornado Watch	SPC	Beaufort, Bertie, Camden, Carteret, Chowan, Craven and 18 more	9 hr
Mar 4, 6:27 PM EST	Tornado Watch	SPC	Bladen, Brunswick, Columbus, New Hanover, Pender, Robeson	7 hr
Mar 4, 11:56 AM EST	Mesoscale Discussion	SPC	Allendale	2 hr

Nearby

Mesoscale Discussions in South Carolina, 2008 Mesoscale Discussions in North 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.