Another preseason snowstorm will develop in the Rockies late Saturday night and move into the Plains on Sunday where another several inches could fall and greatly impact travel.
Already, one snowstorm moved through the northern Rockies on Friday night and into the Plains on Saturday morning where several inches of snow fell. In fact, snow was reported as far east as Des Moines, Iowa.
Snow will break out once again early Sunday morning in Wyoming and Montana; probably before daybreak. It will then intensify through the morning and streak eastward into the northern Plains.
Snow accumulations will range anywhere from 1 to 3 inches from far eastern Idaho northeastward into parts of western Minnesota.
An area of 3 to 6 inches will accumulate in northern Wyoming eastward into South Dakota. Gusty winds will add to the dangers by blowing and drifting the snow.
Travel will become very hazardous Sunday morning into Sunday night, especially along Interstates 80, 25, 90 and 94. The heaviest snow amounts will likely accumulate along Interstate 90.
Airline passengers traveling into or out of Billings, Mont., Cheyenne, Wyo. and Rapid City, S.D., could be among those that experience these travel troubles.