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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 Monday, June 26, 2017, at 5:30am...
Today looks warmer as low pressure moves into the Pacific Northwest, and high pressure ridging holds overhead, then... breezy to windy, drier, and cooler conditions are expected the rest of the week (still warm though) due to low pressure systems moving by to the north. CM

LONGER RANGE...
We expect mainly afternoon thunderstorms all next week as low pressure sits across the Pacific Northwest, and a more moist south/ southwest flow of wind develops across Colorado, with warmer temperatures under a ridge of high pressure. CM
Check out our 2016-2017 snow outlook/ guidance here
SnowMap Legend
CUSTOM FORECAST DETAILS
Weather Icon

↑58° / 14c°

↓37° / 3c°

↑85° / 29c°

↓43° / 6c°

Mountain Graphic

Sky Condition

Mostly clear to partly cloudy, dry and warmer, with not much wind expected.

Snow Potential

None expected

Precipitation

None expected

Wind

Base and in Aspen: Variable at 4-12mph, becoming W at 5-15mph, and above Timberline: W at 10 to 20mph.

Weather Icon

↑56° / 13c°

↓40° / 4c°

↑84° / 29c°

↓48° / 9c°

Mountain Graphic

Sky Condition

Partly cloudy, with slightly cooler (still warm) temperatures and increased winds (low pressure to the north).

Snow Potential

None expected

Precipitation

None expected

Wind

Base and in Aspen: S at 5-15mph, becoming SW at 10-20 gusts to 30mph by afternoon, and above Timberline: Increasing to SW at 20 to 30 gusts to 45mph.

Weather Icon

↑55° / 13c°

↓40° / 4c°

↑82° / 28c°

↓49° / 9c°

Mountain Graphic

Sky Condition

Partly cloudy and warm, with continued dry and windy conditions, and strong gusts above tree line.

Snow Potential

None expected

Precipitation

None expected

Wind

Base and in Aspen: Variable at 5-15mph, becoming SW at 10-20 gusts to 30mph by afternoon again, and above Timberline: SW at 20 to 35 gusts to 55mph.

Weather Icon

↑53° / 12c°

↓39° / 4c°

↑78° / 26c°

↓48° / 9c°

Mountain Graphic

Sky Condition

Partly cloudy and cooler, with windy and dry conditions continuing.

Snow Potential

None expected

Precipitation

None expected

Wind

Base and in Aspen: SW at 5-15mph, becoming W/ NW at 15-25 gusts to 35mph, and above Timberline: W/ NW at 20 to 35 gusts to 50mph.

Weather Icon

↑51° / 11c°

↓34° / 1c°

↑77° / 25c°

↓44° / 7c°

Mountain Graphic

Sky Condition

Mostly clear and slightly cooler, with less wind.

Snow Potential

None expected

Precipitation

None expected

Wind

Base and in Aspen: Variable at 4-12mph, becoming NW at 10-20mph, and above Timberline: NW at 15 to 25 gusts to 35mph.

Weather Icon

↑54° / 12c°

↓37° / 3c°

↑79° / 26c°

↓42° / 6c°

Mountain Graphic

Sky Condition

Mostly clear and mild, with similar winds.

Snow Potential

None expected

Precipitation

None expected

Wind

Base and in Aspen: Variable at 4-12mph, becoming NW at 10-20mph, and above Timberline: NW at 10 to 20 gusts to 30mph.

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

Aspen/Snowmass Nordic Trail System