…Major winter storm to bring heavy snow and high winds to parts of the
Northern Rockies…

…Much below average temperatures across the Northwest, with much above average temperatures east of the Rockies… …Heavy rainfall and severe weather possible across parts of the north and central U.S. through Monday… A major to potentially historic early season winter storm is ongoing today across parts of the Northern Rockies as an anomalous upper level low pressure system rotates aloft. Heavy snowfall, strong winds, and potential blizzard conditions will continue across the Northern Rockies through Sunday. Widespread winter storm warnings and advisories are in effect from the interior Pacific Northwest through western Montana and northwest Wyoming. As much as 1 to 3 feet (locally more) of snowfall is possible, especially across western Montana which would create dangerous to impossible travel conditions across the region. This system will also usher in a very cold airmass, at least for September standards, with daytime highs 20 to 30+ degrees below average across much of the Northwest. Many daily record low maximum temperature records are possible through Monday, especially across the Northern Great Basin/Rockies, and California.