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Up to 18 Inches of Snow to Hit Montana and Wyoming Mountains This Weekend

Forecasters warn of dangerous high-country travel with snow levels dropping toward 6,000 feet.

A car drives around a tree that has fallen across some power lines in Pelham, Mass., Sunday, Oct. 30, 2011. Millions of people in the U.S. Northeast were without power as an unseasonably early storm dumped heavy, wet snow over the weekend on a region more used to gaping at leaves in October than shoveling snow. (AP Photo/Michael Dwyer)

Overview

  • The National Weather Service has Winter Storm Warnings and Winter Weather Advisories in effect across mountain zones of Montana and Wyoming through Sunday.
  • Montana’s Absaroka-Beartooth and Crazy Mountains are forecast to receive 10 to 20 inches, with localized totals near 18 inches in Wyoming’s Bighorn Mountains.
  • Many other ranges are expected to see 2 to 7 inches, with over a foot possible on the highest peaks as colder air surges in behind successive fronts.
  • Gusts up to roughly 35 mph and heavy, wet snow will create hazardous to impassable conditions on mountain passes including Togwotee, Powder River, Granite and Going-to-the-Sun Road.
  • Lower elevations will see valley rain and a sharp cooldown, followed by a widespread hard freeze Sunday night into Monday and a return to seasonable conditions by midweek.