Alert archive / Pennsylvania / Mesoscale Discussions in 2018

Mesoscale Discussion 1648

November 15, 20186 states

The Storm Prediction Center issued this mesoscale discussion at Nov 15, 2018, 9:56 AM EST for 6 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Nov 15, 2018, 9:56 AM EST (14:56 UTC)
Expired: Nov 15, 2018, 4:00 PM EST
In force: 6 hr
Issued by: the Storm Prediction Center

All 104 counties

Allegany County, MD, Baltimore County, MD, Carroll County, MD, Cecil County, MD, City of Baltimore, MD, Frederick County, MD, Garrett County, MD, Harford County, MD, Howard County, MD, Montgomery County, MD, Washington County, MD, Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Morris County, NJ, Passaic County, NJ, Somerset County, NJ, Sussex County, NJ, Union County, NJ, Warren County, NJ, Orange County, NY, Richmond County, NY, Rockland County, NY, Adams County, PA, Armstrong County, PA, Bedford County, PA, Berks County, PA, Blair County, PA, Bradford County, PA, Bucks County, PA, Cambria County, PA, Cameron County, PA, Carbon County, PA, Centre County, PA, Chester County, PA, Clearfield County, PA, Clinton County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Delaware County, PA, Elk County, PA, Fayette County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Indiana County, PA, Jefferson County, PA, Juniata County, PA, Lackawanna County, PA, Lancaster County, PA, Lebanon County, PA, Lehigh County, PA, Luzerne County, PA, Lycoming County, PA, McKean County, PA, Mifflin County, PA, Monroe County, PA, Montgomery County, PA, Montour County, PA, Northampton County, PA, Northumberland County, PA, Perry County, PA, Philadelphia County, PA, Pike County, PA, Potter County, PA, Schuylkill County, PA, Snyder County, PA, Somerset County, PA, Sullivan County, PA, Susquehanna County, PA, Tioga County, PA, Union County, PA, Wayne County, PA, Westmoreland County, PA, Wyoming County, PA, York County, PA, City of Fairfax, VA, City of Falls Church, VA, City of Harrisonburg, VA, City of Manassas Park, VA, City of Winchester, VA, Clarke County, VA, Fauquier County, VA, Frederick County, VA, Loudoun County, VA, Page County, VA, Rappahannock County, VA, Rockingham County, VA, Shenandoah County, VA, Warren County, VA, Berkeley County, WV, Grant County, WV, Hampshire County, WV, Hardy County, WV, Jefferson County, WV, Mineral County, WV, Morgan County, WV, Pendleton County, WV, Preston County, WV, Tucker County, WV

The radar

The State College radar (KCCX), 103 km from the middle of the area, began a volume at 15:00 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 text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 15, 3:18 AM EST	Mesoscale Discussion	SPC	Allegany, Anne Arundel, Carroll, Frederick, Garrett, Howard and 4 more	6 hr
Nov 15, 4:39 PM EST	Mesoscale Discussion	SPC	Bergen, Essex, Hudson, Hunterdon, Mercer, Middlesex and 6 more	6 hr

Nearby

Mesoscale Discussions in Pennsylvania, 2018 Mesoscale Discussions in Virginia, 2018 Mesoscale Discussions in New Jersey, 2018 Every mesoscale discussion in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.