Alert archive / Virginia / Mesoscale Discussions in 2005

Mesoscale Discussion 2446

November 16, 20055 states

The Storm Prediction Center issued this mesoscale discussion at Nov 16, 2005, 5:38 AM EST for 5 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Nov 16, 2005, 5:38 AM EST (10:38 UTC)
Expired: Nov 16, 2005, 7:45 AM EST
In force: 2 hr
Issued by: the Storm Prediction Center

All 110 counties

Carroll County, MD, Frederick County, MD, Howard County, MD, Montgomery County, MD, Washington County, MD, Allegany County, NY, Cayuga County, NY, Chemung County, NY, Cortland County, NY, Livingston County, NY, Onondaga County, NY, Ontario County, NY, Schuyler County, NY, Seneca County, NY, Steuben County, NY, Tioga County, NY, Tompkins County, NY, Wayne County, NY, Yates County, NY, Adams County, PA, Bedford County, PA, Blair County, PA, Bradford County, PA, Cameron County, PA, Centre County, PA, Clinton County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Juniata County, PA, Lebanon County, PA, Lycoming County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Potter County, PA, Snyder County, PA, Sullivan County, PA, Tioga County, PA, Union County, PA, Wyoming County, PA, York County, PA, Albemarle County, VA, Alleghany County, VA, Amelia County, VA, Amherst County, VA, Appomattox County, VA, Arlington County, VA, Augusta County, VA, Bath County, VA, Bedford County, VA, Botetourt County, VA, Buckingham County, VA, Campbell County, VA, City of Buena Vista, VA, City of Charlottesville, VA, City of Covington, VA, City of Fairfax, VA, City of Falls Church, VA, City of Fredericksburg, VA, City of Harrisonburg, VA, City of Lexington, VA, City of Lynchburg, VA, City of Manassas, VA, City of Manassas Park, VA, City of Roanoke, VA, City of Salem, VA, City of Staunton, VA, City of Waynesboro, VA, City of Winchester, VA, Clarke County, VA, Craig County, VA, Culpeper County, VA, Cumberland County, VA, Fairfax County, VA, Fauquier County, VA, Fluvanna County, VA, Franklin County, VA, Frederick County, VA, Goochland County, VA, Greene County, VA, Highland County, VA, Loudoun County, VA, Louisa County, VA, Madison County, VA, Montgomery County, VA, Nelson County, VA, Orange County, VA, Page County, VA, Powhatan County, VA, Prince Edward County, VA, Prince William County, VA, Rappahannock County, VA, Roanoke County, VA, Rockbridge County, VA, Rockingham County, VA, Shenandoah County, VA, Spotsylvania County, VA, Stafford County, VA, Warren County, VA, Berkeley County, WV, Hampshire County, WV, Hardy County, WV, Jefferson County, WV, Morgan County, WV, Pendleton County, WV

The radar

The State College radar (KCCX), 87 km from the middle of the area, began a volume at 10:37 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

Pittsburgh, PA (KPIT), launched 00:00Z, 10.6 hours before the alert went out and 167 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: 30 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 1492 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 288 m²/s²
0-3 km storm-relative helicity: 406 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
Nov 16, 12:33 PM EST	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 9 more	87 min
Nov 16, 10:44 AM EST	Mesoscale Discussion	SPC	Albany, Clinton, Columbia, Delaware, Dutchess, Essex and 17 more	91 min
Nov 15, 8:51 PM EST	Mesoscale Discussion	SPC	Lee, Wise, City of Norton	54 min
Nov 16, 12:07 AM EST	Mesoscale Discussion	SPC	Lee	53 min
Nov 16, 3:03 AM EST	Mesoscale Discussion	SPC	Alleghany, Augusta, Bath, Bland, Botetourt, Buchanan and 30 more	117 min

Nearby

Mesoscale Discussions in Virginia, 2005 Mesoscale Discussions in Pennsylvania, 2005 Mesoscale Discussions in New York, 2005 Every mesoscale discussion in 2005

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.