National Weather Service United States Department of Commerce

Coastal Storm Along the East Coast; Pacific Storm System in the West on Friday

A strengthening coastal storm will bring soaking rains to portions of the Mid-Atlantic and Northeast, with accumulating snow likely across the higher elevations of northern New England through Friday. A Pacific storm system will bring heavy low elevation rain, and gusty winds to northern California and the Pacific Northwest, as well as possible blizzard conditions to the Sierra Nevada on Friday. Read More >

A cool weather system will drop temperatures back to near normal for this time of year, which are typically in the low to mid 40s for highs in valley locations. A mix of rain and snow showers are anticipated with snow levels lowering close to 4000 feet by Wednesday morning. Mountain pass travel may become slick at times.
Strong valley inversions will bring a chance of fog and low stratus to the Northern Rockies from Wednesday through at least Friday (Nov. 11–13). Areas across North-central Idaho and Western Montana valleys—including major routes like I-90, US-93, US-2, US-12, US-95, MT-200, MT-83, and MT-56—may experience localized travel hazards caused by low visibility and icy road surfaces from freezing fog. Allow extra travel time and use low-beam headlights when driving through valley fog.