High Wind in S Grant & Sw Adams, Washington

A strong low pressure system moving across southern British Columbia brought a cold front across eastern Washington from late evening on October 22 through the early morning of October 23. High wind immediately followed the frontal passage. Wind equipment at Priest Rapids Dam measured a wind gust to 83 mph. A weather spotter in Clarkston reported a wind gust of 60 mph at 145 AM PDT, and the Alder Ridge RAWS site in the northeast Blue Mountains (elevation 4500 feet) measured a wind gust to 75 miles an hour at 300 AM PDT. Most other parts of eastern Washington measured wind gusts of 40 to 50 miles an hour both at the time of the frontal passage and later on the afternoon of the 23rd.