Wyoming, Montana and Colorado are among the states where severe weather is expected this weekend.
"If you must travel, be sure to slow down and allow extra time," the National Weather Service said in one alert.
"Travel could be very difficult to impossible," the NWS said. "Strong winds could cause damage to trees and power lines." ...
On Tuesday at 12:10 a.m. an updated winter storm warning was released by the NWS Portland OR valid from 5 p.m. until Thursday ...
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