Forecast printed 10/31/2024 at 8 p.m. MDT
Forecast Abstract
- A trough digs down throughout the Rockies on Saturday, bringing widespread rain/snow, and dropping temperatures down properly beneath regular.
- A number of inches of snow are anticipated this weekend throughout the upper peaks of ID/MT/WY.
- A second storm strikes in instantly behind the primary, permitting snow to proceed and protecting temperatures properly beneath regular by the primary half of subsequent week.
A pair of low stress programs are presently combining over the Pacific Northwest, forming a trough that may drop down over the 4 Corners space by Sunday. The vanguard of this trough will act as a chilly entrance, which is predicted to maneuver over Jap Idaho/Western Montana Saturday afternoon, and Northwest Wyoming Saturday night time.
Rain and snow showers will start falling a number of hours earlier than the arrival of the chilly entrance. Snow ranges will begin out round 6,500 toes, regularly falling to as little as 3-4,000 toes in a single day.
This primary storm is predicted to provide a number of inches of snow throughout terrain above 8,000 toes or so, with round 6-10 inches anticipated on the upper peaks, earlier than it strikes off Sunday night time.
NWS forecast snow totals by Sunday night. Supply: maps.weatherbell.com
There’s solely a really temporary lull within the motion Monday morning earlier than the second storm produces one other chilly entrance that sweeps down over the Northern Rockies Monday PM and into early Tuesday AM. Precipitation, principally within the type of snow, begins falling Monday night, and continues till Tuesday night time/Wednesday morning.
Though this may increasingly seem like a smaller storm than the primary, and in some methods it’s, it’ll possible produce extra snow as a consequence of colder temperatures already being in place from that first storm. Colder temperatures permit for larger snow-liquid ratios, that means that extra snow could be produced out of the identical quantity of precipitation. Temperatures will probably be very chilly for early November, with freezing temperatures anticipated within the mountains from Saturday by Wednesday.
Forecast Snow Totals (SAT-WED):
- Tamarack (ID): 16-24 inches
- Bogus Basin (ID): 3-6 inches
- Solar Valley (ID): 2-5 inches
- Huge Sky (MT): 5-10 inches
- Bridger Bowl (MT): 8-14 inches
- Whitefish (MT): 8-16 inches
- Jackson Gap (WY): 14-24 inches
- Grand Targhee (WY): 18-30 inches
Prolonged Forecast
A quieter interval is predicted to comply with these two storms. Nevertheless, some weaker storms are exhibiting up in fashions subsequent weekend and into the next work week. The principle takeaway is that the sample over the following couple of weeks appears about regular for this time of 12 months.
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