National Weather Service United States Department of Commerce

Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >

A tornado moved from near Tionesta to north of Marienville, crossing the Allegheny River.  Seven people were injured and over 700 structures were damaged or destroyed.  Patterns of trees downed by the tornado showed the fan-like shape of a microburst next to the tornado track.
Source: NCDC Storm Data: May 1985; Volume 27, Number 5


Source: NCDC Storm Data: May 1985; Volume 27, Number 5