Thunderstorm Wind in Douglas County, Oregon

The wind sensor at the North Bank RAWS recorded a gust to 78 mph as the squall line moved through at 13/1411 PST. The Signal Tree RAWS on the Coos/Douglas county border reported a gust to 61 mph at 13/1335 PST. A spotter 1WNW Roseburg reported a gust to 60 mph at 13/1317 PST. A retired NWS employee in Roseburg reported estimated gusts to 60 mph with the squall line. A spotter NNE Azalea reported a fallen tree on a house and power lines down. Trees were also blocking old Highway 99 between Azalea and Glendale. Numerous downed trees were blocking roads.

A strong squall line developed over the coastal waters this day and moved onshore. Squall lines are unusual enough over the Oregon waters, but this one moved over the coastal range and brought severe winds and hail to the west side interior valleys...which is very unusual. Many trees were uprooted or broken, and a number of major roads were closed by fallen trees. 75,000 homes lost power due to this storm.