Alert archive / Pennsylvania / Mesoscale Discussions in 2018

Mesoscale Discussion 1494

September 21, 20184 states

The Storm Prediction Center issued this mesoscale discussion at Sep 21, 2018, 7:04 PM EDT for 4 states. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued: Sep 21, 2018, 7:04 PM EDT (23:04 UTC)
Expired: Sep 21, 2018, 9:00 PM EDT
In force: 116 min
Issued by: the Storm Prediction Center

All 63 counties

Allegany County, NY, Cattaraugus County, NY, Cayuga County, NY, Chemung County, NY, Cortland County, NY, Genesee County, NY, Lewis County, NY, Livingston County, NY, Madison County, NY, Monroe County, NY, Oneida County, NY, Onondaga County, NY, Ontario County, NY, Oswego County, NY, Schuyler County, NY, Seneca County, NY, Steuben County, NY, Tioga County, NY, Tompkins County, NY, Wayne County, NY, Wyoming County, NY, Yates County, NY, Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Guernsey County, OH, Harrison County, OH, Holmes County, OH, Jefferson County, OH, Mahoning County, OH, Stark County, OH, Tuscarawas County, OH, Allegheny County, PA, Armstrong County, PA, Beaver 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, Elk County, PA, Forest County, PA, Indiana County, PA, Jefferson County, PA, Lawrence County, PA, Lycoming County, PA, McKean County, PA, Mercer County, PA, Potter County, PA, Tioga County, PA, Venango County, PA, Warren County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Hancock County, WV, Ohio County, WV

The radar

The State College radar (KCCX), 105 km from the middle of the area, began a volume at 23:05 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
Sep 21, 4:27 PM EDT	Mesoscale Discussion	SPC	Allegany, Cayuga, Franklin, Genesee, Jefferson, Lewis and 12 more	63 min
Sep 21, 4:50 PM EDT	Severe Thunderstorm Watch	SPC	Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Franklin and 17 more	6 hr
Sep 21, 3:37 PM EDT	Mesoscale Discussion	SPC	Ashland, Ashtabula, Carroll, Columbiana, Coshocton, Cuyahoga and 19 more	83 min
Sep 21, 4:32 PM EDT	Severe Thunderstorm Watch	SPC	Ashtabula, Belmont, Carroll, Columbiana, Coshocton, Geauga and 14 more	4 hr
Sep 21, 6:08 PM EDT	Mesoscale Discussion	SPC	Adams, Brown, Scioto	97 min

Nearby

Mesoscale Discussions in Pennsylvania, 2018 Mesoscale Discussions in New York, 2018 Mesoscale Discussions in Ohio, 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.