Alert archive / Pennsylvania / Mesoscale Discussions in 2011

Mesoscale Discussion 1917

August 9, 201116 counties in New Jersey; 17 counties in New York; 37 counties in Pennsylvania

The Storm Prediction Center issued this mesoscale discussion at Aug 9, 2011, 3:05 PM EDT for 16 counties in New Jersey; 17 counties in New York; 37 counties in Pennsylvania. It was in force for 55 min.

The area

The outline as issued.

The facts

Issued
Aug 9, 2011, 3:05 PM EDT (19:05 UTC)
Expired
Aug 9, 2011, 4:00 PM EDT
In force
55 min
Issued by
the Storm Prediction Center
All 70 counties

Bergen County, NJ, Burlington County, NJ, Camden County, NJ, Essex County, NJ, Gloucester County, NJ, Hudson County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth 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, 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, Tioga County, NY, Ulster County, NY, Westchester County, NY, Adams County, PA, Berks County, PA, Bradford County, PA, Bucks County, PA, Carbon County, PA, Centre County, PA, Chester County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Delaware County, PA, Franklin County, PA, Huntingdon County, PA, Juniata County, PA, Lackawanna County, PA, Lancaster County, PA, Lebanon County, PA, Lehigh County, PA, Luzerne County, PA, Lycoming 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, Schuylkill County, PA, Snyder County, PA, Sullivan County, PA, Susquehanna County, PA, Union County, PA, Wayne County, PA, Wyoming County, PA, York County, PA

The radar

The Binghamton radar (KBGM), 139 km from the middle of the area, began a volume at 19:05 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 watches that followed

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

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 9, 12:48 PM EDTMesoscale DiscussionSPCBurlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 3 more57 min
Aug 9, 4:16 PM EDTSevere Thunderstorm WatchSPCBergen, Burlington, Camden, Essex, Gloucester, Hudson and 8 more5 hr
Aug 9, 7:07 PM EDTMesoscale DiscussionSPCBurlington, Camden, Cumberland, Gloucester, Hunterdon, Mercer and 6 more83 min
Aug 9, 6:56 PM EDTSevere Thunderstorm WatchSPCCrawford, Erie, Lawrence, Mercer5 hr

Nearby

Mesoscale Discussions in Pennsylvania, 2011Mesoscale Discussions in New York, 2011Mesoscale Discussions in New Jersey, 2011Every mesoscale discussion in 2011

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.