Cheyenne National Weather Service

Wind gusts of up to 70 mph are possible.

Areas of both Interstate 80 and 25 will be affected.

Be prepared for travel impacts Sunday into Monday due to potential snow accumulation and high winds.

Temperatures will trend cooler with a decent possibility of much-needed rainfall across the region by early next week.

This is a very strong weather system that has the potential to cause major impacts for early September in localized areas

An early winter storm has Wyoming in its sights and there's a possibility of four inches of snow in many areas Monday night into Tuesday

The agency says "hail, some large, and strong wind gusts will likely accompany stronger storms.''

40 - 60 mph wind gusts, pea to quarter-sized hail and brief heavy rainfall will be possible in the strongest of storms.