Alert archive / Pennsylvania / Mesoscale Discussions in 2017

Mesoscale Discussion 1367

July 20, 20174 states

The Storm Prediction Center issued this mesoscale discussion at Jul 20, 2017, 4:33 PM EDT for 4 states. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued
Jul 20, 2017, 4:33 PM EDT (20:33 UTC)
Expired
Jul 20, 2017, 6:00 PM EDT
In force
87 min
Issued by
the Storm Prediction Center
Chance of a watch
40%
All 56 counties

Berkshire County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Worcester County, MA, Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Hunterdon County, NJ, Middlesex County, NJ, Morris County, NJ, Passaic County, NJ, Somerset County, NJ, Sussex County, NJ, Union County, NJ, Warren County, NJ, Bronx County, NY, Broome County, NY, Columbia County, NY, Delaware County, NY, Dutchess County, NY, Greene County, NY, Kings County, NY, Nassau County, NY, New York County, NY, Orange County, NY, Putnam County, NY, Queens County, NY, Richmond County, NY, Rockland County, NY, Sullivan County, NY, Ulster County, NY, Westchester County, NY, Berks County, PA, Bradford County, PA, Bucks County, PA, Carbon County, PA, Columbia County, PA, Dauphin County, PA, Lackawanna County, PA, Lebanon County, PA, Lehigh County, PA, Luzerne County, PA, Lycoming County, PA, Monroe County, PA, Montour County, PA, Northampton County, PA, Northumberland County, PA, Pike County, PA, Schuylkill County, PA, Snyder County, PA, Sullivan County, PA, Susquehanna County, PA, Union County, PA, Wayne County, PA, Wyoming County, PA

The radar

The Binghamton radar (KBGM), 117 km from the middle of the area, began a volume at 20:33 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 20, 5:03 PM EDTSevere Thunderstorm WatchSPCBergen, Burlington, Camden, Essex, Hudson, Hunterdon and 10 more5 hr
Jul 20, 7:48 PM EDTMesoscale DiscussionSPCBergen, Burlington, Essex, Hudson, Hunterdon, Mercer and 8 more87 min
Jul 20, 11:36 AM EDTMesoscale DiscussionSPCAllegany, Cattaraugus, Chautauqua, Chemung, Erie, Genesee and 10 more114 min
Jul 20, 1:11 PM EDTSevere Thunderstorm WatchSPCAllegany, Broome, Cayuga, Chemung, Chenango, Cortland and 14 more6 hr
Jul 20, 3:03 PM EDTMesoscale DiscussionSPCAllegany, Broome, Cayuga, Chemung, Chenango, Cortland and 13 more87 min
Jul 20, 3:50 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Cambria, Cameron and 10 more2 hr

Nearby

Mesoscale Discussions in Pennsylvania, 2017Mesoscale Discussions in New York, 2017Mesoscale Discussions in New Jersey, 2017Every 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.