[Forecast courtesy of Powderchasers]
SUMMARY: 4/18/17 8 AM MST
7-10 Inches fell from the last storm over the Sierra (Mammoth and Heavenly) as moisture focused south of Interstate 80. Snow above 7500 feet is falling this morning with another 2-4 likely through late today. The action picks up in the Wasatch tonight (High elevation cream) and eventually Teton Pass will be creamy by Thursday/Friday. This might be one of my last forecasts of the season and I hope you have reaped the deep this season. Thanks to all of those that lived vicariously or caught me on first chair this season.
SHORT TERM FORECAST:
Snow continues above 7500-8000 feet today in the central Sierra range. While Squaw did not report any new snow, Northstar is reporting 8 inches in the last 48 hours (Sunday night-Monday cream). It will likely be raining at the bases of most resorts around northern California this morning. Moisture ends later Tuesday and returns Wednesday night with a final round that’s colder and weaker. Expect 1-3 inches of better quality snow for Thursday AM (1st chairs) if your desperate for a chase. Spring conditions and a bit of new snow could make for some decent conditions Wednesday. Mammoth has benefited from colder temps so may be a better bet today!
The Wasatch will host one snowfall event that looks promising this week. Snow will hit the peaks of Brighton and Snowbird, where 5-9 inches will fall after the lifts close today. Rain will be falling at the bases while moderate cream will await Wednesday morning. The models show this event to be a quick hitter with decent convection this evening tapering to snow showers after midnight. SW flow (9-10,000 foot snow levels) early turn NW late this evening on the back side of the system. Colder temps will drive snow levels down to mid mountain. Expect 7 inches on Regulator at Snowbird tomorrow morning and perhaps 2-4 mid mountain. The base areas will likely see little to no accumulation. Brighton is also open so the peaks may be a decent option. It won’t be quality but it’s a reminder of what a great winter the Wasatch nabbed this season! I would chase if I were local but don’t be picky on quality! Another light wave of snow (Better quality) hits the Wasatch Thursday (2-4 with lowering snow levels).
The Tetons are buttoned up from a resort perspective. Teton Pass will nab 1-3 inches today and light snow again tonight. A moderate and colder system should deliver 2-5 inches up high Thursday night into Friday. The pass may end up with 5-11 inches up higher hike to elevations through Friday.
Colorado is our wildcard as leftovers spill light snow showers above 9-10,000 feet from Steamboat through Rocky Mountain National Park. Models show better odds of snow at the summit of Steamboat Thursday night. Rocky Mountain National Park should see 2-5 inches (Northern sections) by mid Friday (colder temps and scattered light moisture late week).
Models for next week advertise at continued unsettled pattern for the Northwest. My original comment last week regarding a deeper storm with NW flow and colder temps is still in my wildcard list for mid to late next week. It’s possible that a deeper colder system drops through Montana and into Colorado late next week but’s too far out to predict with confidence. I would expect unsettled conditions for the panhandle of Idaho and Montana to increase by Wednesday/Thursday next week dropping south beyond that time frame.
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