Report From: Powderchasers
Powder Watch for Montana, Wyoming and NE Idaho has been upgraded to a warning for a long duration snow event Saturday-Tuesday. It is currently snowing lightly in the Tetons which will taper somewhat tonight and resume again during the day Saturday. (2-3). Snow will taper Saturday night and increase in the Tetons for several hours on Sunday (2-4). High snow levels will limit accumulations to the upper peaks. Snow intensifies in Wyoming, NE-Central Idaho and SW Montana Monday through Tuesday under SW flow (5-10) with cooling temperatures. Snowfall will drop to the Valley floor early next week. No single epic dump but the combination of this weekend into early next week will bring 10-18 storm totals to many high elevations in the northern Rockies. Snow levels will be rising through Monday before dropping into Tuesday morning. Tuesday is my pick of the week. Signifiant high elevation snow will be likely with high wind impacts this weekend diminishing with the cold front Monday night.
The NE corner of Idaho and S. Western Montana depict a bullseye with high confidence in areas that surround Bozeman and Big Sky, and Yellowstone.
The Powder Alert for the Sierra remains in effect Sunday/Monday.
Colorado grabs action Tuesday/Wednesday however the storm track might end up favoring the Western 1/3 of the State from Powderhorn to Rifle, and upwards towards Craig? Steamboat can fare well especially with the cold front Tuesday PM.The Wasatch gets most of the action Monday PM/Tuesday with my gut telling me hold off another day before pulling the warning card out. It’s sitting high in my bag right now! High confidence in decent snow totals especially north of Interstate 80 (Snowbasin, Powder, and areas towards the Idaho border) with moderate confidence in the Cottonwoods. We may see higher snow totals in Big Cottonwoodversus Little due to SW flow? The Canyonsand the Uinta mountain ranges can fare well. Cold air orographics will play a major role in the amounts that ultimately fall. Low elevations may start with rain/snow mix before all snow by Monday night or Tuesday morning.