Alert archive / North Carolina / Mesoscale Discussions in 2008

Mesoscale Discussion 2387

November 15, 200832 counties in North Carolina; 32 counties in Virginia

The Storm Prediction Center issued this mesoscale discussion at Nov 15, 2008, 4:10 AM EST for 32 counties in North Carolina; 32 counties in Virginia. It was in force for 65 min.

The area

The outline as issued.

The facts

Issued
Nov 15, 2008, 4:10 AM EST (09:10 UTC)
Expired
Nov 15, 2008, 5:15 AM EST
In force
65 min
Issued by
the Storm Prediction Center
All 64 counties

Beaufort County, NC, Bertie County, NC, Camden County, NC, Carteret County, NC, Chowan County, NC, Craven County, NC, Cumberland County, NC, Currituck County, NC, Dare County, NC, Duplin County, NC, Edgecombe County, NC, Gates County, NC, Greene County, NC, Halifax County, NC, Hertford County, NC, Hyde County, NC, Johnston County, NC, Jones County, NC, Lenoir County, NC, Martin County, NC, Nash County, NC, Northampton County, NC, Pamlico County, NC, Pasquotank County, NC, Perquimans County, NC, Pitt County, NC, Sampson County, NC, Tyrrell County, NC, Warren County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC, Charles City County, VA, City of Chesapeake, VA, City of Colonial Heights, VA, City of Emporia, VA, City of Franklin, VA, City of Hampton, VA, City of Hopewell, VA, City of Newport News, VA, City of Norfolk, VA, City of Petersburg, VA, City of Poquoson, VA, City of Portsmouth, VA, City of Suffolk, VA, City of Virginia Beach, VA, City of Williamsburg, VA, Gloucester County, VA, Greensville County, VA, Henrico County, VA, Isle of Wight County, VA, James City County, VA, King and Queen County, VA, King William County, VA, Lancaster County, VA, Mathews County, VA, Middlesex County, VA, New Kent County, VA, Northampton County, VA, Prince George County, VA, Southampton County, VA, Surry County, VA, Sussex County, VA, York County, VA

The radar

The Norfolk radar (KAKQ), 120 km from the middle of the area, began a volume at 09:12 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

Newport, NC (KMHX), launched 00:00Z, 9.2 hours before the alert went out and 125 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, Newport, NC at 00:00Z on 2008-11-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1161 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, Newport, NC at 00:00Z on 2008-11-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 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
1161 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
517 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
1.0
Supercell composite
5.3

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.

IssuedProductOfficeCountiesLasted
Nov 14, 10:25 PM ESTTornado WatchSPCBladen, Brunswick, Columbus, New Hanover, Pender, Robeson8 hr
Nov 14, 11:53 PM ESTMesoscale DiscussionSPCBeaufort, Bertie, Bladen, Brunswick, Camden, Carteret and 33 more2 hr
Nov 15, 12:24 AM ESTTornado WatchSPCBeaufort, Bertie, Camden, Carteret, Chatham, Chowan and 41 more9 hr
Nov 15, 3:10 AM ESTMesoscale DiscussionSPCAnson, Beaufort, Bertie, Bladen, Brunswick, Camden and 40 more95 min
Nov 15, 7:09 AM ESTMesoscale DiscussionSPCBeaufort, Bertie, Camden, Carteret, Chowan, Craven and 14 more66 min
Nov 15, 11:07 AM ESTMesoscale DiscussionSPCBertie, Chowan, Edgecombe, Franklin, Gates, Granville and 12 more53 min
Nov 15, 12:29 PM ESTMesoscale DiscussionSPCBeaufort, Bertie, Bladen, Brunswick, Columbus, Craven and 27 more61 min
Nov 15, 1:25 PM ESTTornado WatchSPCBeaufort, Bertie, Camden, Carteret, Chowan, Craven and 33 more7 hr
Nov 15, 6:15 PM ESTMesoscale DiscussionSPCBeaufort, Bertie, Camden, Carteret, Chowan, Craven and 13 more2 hr
Nov 15, 12:22 PM ESTTornado WatchSPCAccomack, Amelia, Arlington, Brunswick, Caroline, Charles City and 65 more7 hr

Nearby

Mesoscale Discussions in North Carolina, 2008Mesoscale Discussions in Virginia, 2008Every 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.