The National Weather Service said that heavy snow was expected in Montana, near Pryor and along the northern Bighorn Mountains.

A winter storm warning was issued by the National Weather Service ... A winter storm warning means snow, sleet or ice is expected, so take action. A winter storm watch means those conditions ...

A winter storm warning was issued by the National Weather Service in Denver at 2:14 p.m. on May 5. This warning applies to south and east Jackson, Larimer, north and northeast Grand and northwest ...