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US Extended Snowfall Outlook
Updated April 10, 2017 (OLD)

TAHOE --> Across the western US later Tuesday through later Thursday (afternoon/ evening) it looks like Tahoe is the place to be for new snow, with the best snowfall Wednesday afternoon through Thursday morning, and snow levels starting near 7,000 feet or so, dropping to near 6,000 feet (below all Tahoe area resort base elevations) as strong late season low pressure moves in and through. A good foot of new snow is possible, with 1.5+ feet above 7,000 feet Wednesday afternoon through Thursday morning. Dynamics + moisture make this look like a bigger than 1 foot storm, but we will see... show up on Thursday for the freshies, with lighter snow showers continuing on a colder Thursday. The Cascades of Oregon/ Washington will also see more new snow, as will northern Idaho and northwest Montana. The rest of the west looks mostly dry. CM

LONGER RANGE...
Sunday through next Thursday looks snowy for Tahoe-Mammoth, with the storms that hit the west coast (full strength) weakening as they move inland. Snow is expected for the northern and central Rocky Mountains and northern Utah, Colorado as well. Resorts from Jackson Hole to Big Sky, Sun Valley to Whitefish, are all expected to see new snow, though many resorts will be closed by this point. The backcountry will be freshened up though. CM
Forecast discussion for Aspen-Snowmass and Western Colorado

Updated for Wednesday, June 21, 2017, at 8:00am...
We expect some isolated PM thunderstorms by afternoon today and Thursday (otherwise mostly sunny), but the Thursday storms linger through overnight as a weather disturbance clips the area form the north, then drying out for the weekend after a Friday morning cool front moves through, with breezy to windy, drier, and cooler conditions due to low pressure systems to the north. CM

LONGER RANGE...
We expect increased chances for mainly afternoon thunderstorms next week as low pressure hist the Pacific Northwest, and a more moist southwest flow aloft develops. Warming temperatures are expected also, but not the upper 80's we saw this week in Aspen. CM
Check out our 2016-2017 snow outlook/ guidance here
SnowMap Legend
CUSTOM FORECAST DETAILS
Weather Icon

↑55° / 13c°

↓36° / 2c°

Mountain Graphic

Sky Condition

Partly cloudy with scattered storms

Snow Potential

None Expected

Precipitation

Scattered Storms (Potential precip: 0.25in, 6.35mm)

Wind

From the W at 8 to 18 MPH, with gusts up to 30MPH.

Weather Icon

↑48° / 9c°

↓34° / 1c°

Mountain Graphic

Sky Condition

Partly cloudy with isolated showers

Snow Potential

None Expected

Precipitation

Isolated Showers (Potential precip: 0.11in, 2.79mm)

Wind

From the W at 9 to 13 MPH.

Weather Icon

↑48° / 9c°

↓32° / 0c°

Mountain Graphic

Sky Condition

Partly cloudy with scattered storms

Snow Potential

None Expected

Precipitation

Scattered Storms (Potential precip: 0.1in, 2.56mm)

Wind

From the WNW at 9 to 13 MPH.

Weather Icon

↑46° / 8c°

↓32° / 0c°

Mountain Graphic

Sky Condition

Partly cloudy with chance of wintry mix

Snow Potential

None Expected

Precipitation

Scattered Wintry Mix (Potential precip: 0.23in, 5.86mm)

Wind

From the W at 9 to 12 MPH.

Weather Icon

↑52° / 11c°

↓36° / 2c°

Mountain Graphic

Sky Condition

Partly cloudy with isolated storms

Snow Potential

None Expected

Precipitation

Isolated Storms (Potential precip: 0.1in, 2.61mm)

Wind

From the WNW at 10 to 14 MPH.

Weather Icon

↑54° / 12c°

↓39° / 4c°

Mountain Graphic

Sky Condition

Partly cloudy with isolated storms

Snow Potential

None Expected

Precipitation

Isolated Storms (Potential precip: 0.03in, 0.87mm)

Wind

From the WNW at 14 to 15 MPH.

27 Sep 2016 - 11:20am PST
What is the weak La Nina/ ENSO Neutral SST pattern going to bring this winter of 2016-2017? We put together a comparison to some past possibly analogous years, here: Here is some guidance, using previous similar pattern years. This guidance is for Aspen, near base elevations (mid and upper mountain get 2 to 3 times as much snow).CM

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