Summary:

Active weekend ahead as multiple systems take aim for western Wyoming. The first storm on Friday night will feature higher snow levels and lighter accumulations. Colder and stronger storm moves through Sunday and into early Monday. One or two more weak systems possible next week. 

Short Term Forecast: 

The month of October will end with a fresh coat of white as two storms move through the Teton Range. The first system is already making its presence felt on Friday morning, with cloudy skies and light showers already falling across the high elevations. 

For the rest of Friday, expect increasing showers across the region, with snow levels staying above 11,000 feet. The strongest energy will then move through western Wyoming on Friday night. Moderate to periods of heavy snow will fall above 10,000 feet, with lighter accumulations possible down to 9,000 feet. It will be an all rain event for elevations below 9,000 feet. By Saturday morning, elevations above 10,000 feet should be looking at 3-6 inches of total snowfall. 

We should then quiet down by Saturday afternoon and into early Sunday as our next storm approaches from the west. 

The action will quickly pick back up by Sunday afternoon and into Sunday night as a stronger and much colder system moves through the northern Rockies. Snow levels will start above 9,000 feet but will quickly drop down to the valley floors as a strong cold front pushes through on Sunday night. The Big Horn Mountains and the Wind River Range will be favored but accumulations of 4-8 inches will be possible across the upper elevations of Grand Targhee and Jackson Hole by Monday morning. 

Overall, elevations above 8-9,000 feet are looking at upwards of a foot of fresh snow through Halloween. 

Extended Forecast:

Looking ahead to the rest of next week, lingering showers will remain in place across the Teton Range on Monday before we catch a quick break on Monday night and into early Tuesday. 

Another quick moving wave could then swing through the region on Tuesday afternoon and into Wednesday but only very light accumulations are expected at this time. There is signs of one more weak wave next Thursday and Friday but we'll see how this trends through the weekend. 

Looking even further ahead, all long-range models are showing slightly drier and warmer conditions by the second week of November. This is 10+ days away so again, we'll have a much better idea as we get closer to the seven day window. 

Thanks for reading, enjoy the snow, and I'll be back on Monday morning with my next update!

SAM COLLENTINE

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