Alert archive / Pennsylvania / Mesoscale Discussions in 2016

Mesoscale Discussion 1886

December 17, 2016Allegany County, Washington County, Maryland; Cattaraugus County, New York; 42 counties in Pennsylvania

The Storm Prediction Center issued this mesoscale discussion at Dec 17, 2016, 3:08 AM EST for Allegany County, Washington County, Maryland; Cattaraugus County, New York; 42 counties in Pennsylvania. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Dec 17, 2016, 3:08 AM EST (08:08 UTC)
Expired: Dec 17, 2016, 7:15 AM EST
In force: 4 hr
Issued by: the Storm Prediction Center

All 45 counties

Allegany County, MD, Washington County, MD, Cattaraugus County, NY, Adams County, PA, Allegheny County, PA, Armstrong County, PA, Bedford County, PA, Blair County, PA, Bradford County, PA, Butler County, PA, Cambria County, PA, Cameron County, PA, Centre County, PA, Clarion County, PA, Clearfield County, PA, Clinton County, PA, Crawford County, PA, Cumberland County, PA, Dauphin County, PA, Elk County, PA, Fayette County, PA, Forest County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Indiana County, PA, Jefferson County, PA, Juniata County, PA, Lawrence County, PA, Lycoming County, PA, McKean County, PA, Mercer County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Potter County, PA, Snyder County, PA, Somerset County, PA, Sullivan County, PA, Tioga County, PA, Union County, PA, Venango County, PA, Warren County, PA, Westmoreland County, PA

The radar

The State College radar (KCCX), 38 km from the middle of the area, began a volume at 08:12 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 text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 17, 4:21 AM EST	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Carroll, Cecil, Frederick, Harford and 5 more	5 hr
Dec 17, 6:57 AM EST	Mesoscale Discussion	SPC	Albany, Broome, Columbia, Delaware, Dutchess, Greene and 8 more	5 hr
Dec 17, 10:01 AM EST	Mesoscale Discussion	SPC	Saratoga, Washington	6 hr
Dec 16, 11:42 PM EST	Mesoscale Discussion	SPC	Allegheny, Beaver, Greene, Lawrence, Washington	5 hr

Nearby

Mesoscale Discussions in Pennsylvania, 2016 Mesoscale Discussions in Maryland, 2016 Mesoscale Discussions in New York, 2016 Every mesoscale discussion in 2016

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.