Alert archive / North Carolina / Mesoscale Discussions in 2008

Mesoscale Discussion 1735

July 8, 200821 counties in North Carolina

The Storm Prediction Center issued this mesoscale discussion at Jul 8, 2008, 9:11 PM EDT for 21 counties in North Carolina. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued: Jul 8, 2008, 9:11 PM EDT (01:11 UTC)
Expired: Jul 8, 2008, 10:15 PM EDT
In force: 64 min
Issued by: the Storm Prediction Center

All 21 counties

Beaufort County, NC, Carteret County, NC, Craven County, NC, Duplin County, NC, Edgecombe County, NC, Franklin County, NC, Granville County, NC, Greene County, NC, Halifax County, NC, Johnston County, NC, Jones County, NC, Lenoir County, NC, Nash County, NC, Onslow County, NC, Pamlico County, NC, Pitt County, NC, Sampson County, NC, Vance County, NC, Warren County, NC, Wayne County, NC, Wilson County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.2 hours before the alert went out and 232 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: 104 J/kg
Mixed-layer CIN: -134 J/kg
Mixed-layer LCL: 850 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 71 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.

Issued	Product	Office	Counties	Lasted
Jul 9, 12:41 PM EDT	Mesoscale Discussion	SPC	Alexander, Alleghany, Ashe, Avery, Buncombe, Burke and 26 more	2 hr
Jul 9, 4:37 PM EDT	Severe Thunderstorm Watch	SPC	Alamance, Anson, Bertie, Cabarrus, Camden, Caswell and 43 more	5 hr
Jul 9, 6:41 PM EDT	Mesoscale Discussion	SPC	Alamance, Anson, Cabarrus, Caswell, Chatham, Cumberland and 35 more	94 min

Nearby

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.