Alert archive / Pennsylvania / Mesoscale Discussions in 2017

Mesoscale Discussion 1808

December 25, 2017Chemung County, Tioga County, New York; 21 counties in Pennsylvania

The Storm Prediction Center issued this mesoscale discussion at Dec 25, 2017, 3:23 AM EST for Chemung County, Tioga County, New York; 21 counties in Pennsylvania. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Dec 25, 2017, 3:23 AM EST (08:23 UTC)
Expired: Dec 25, 2017, 6:30 AM EST
In force: 3 hr
Issued by: the Storm Prediction Center

All 23 counties

Chemung County, NY, Tioga County, NY, Bradford County, PA, Centre County, PA, Clinton County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Huntingdon County, PA, Juniata County, PA, Lebanon County, PA, Luzerne County, PA, Lycoming County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Schuylkill County, PA, Snyder County, PA, Sullivan County, PA, Tioga County, PA, Union County, PA, Wyoming County, PA

The radar

The State College radar (KCCX), 74 km from the middle of the area, began a volume at 08:25 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 25, 4:36 AM EST	Mesoscale Discussion	SPC	Albany, Columbia, Dutchess, Greene, Orange, Putnam and 5 more	5 hr
Dec 25, 10:57 AM EST	Mesoscale Discussion	SPC	Chautauqua	4 hr

Nearby

Mesoscale Discussions in Pennsylvania, 2017 Mesoscale Discussions in New York, 2017 Every mesoscale discussion in 2017

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.