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US Extended Snowfall Outlook
Updated October 20, 2017

HIGH PRESSURE RIDING RETURNS THIS WEEKEND ACROSS THE WEST --> The WEST Coast (+ the resorts) will be sitting under a high pressure ridge, with warmer than average, and sunny weather, after a cold storm on Saturday. CM

LAST DAYS OF OCTOBER/ EARLY NOVEMBER...
High pressure ridging will dominate the eastern US, for a warm-up under mostly sunny skies. Low pressure develops/ deepens across the western US, with colder air and snow likely for western US resort areas again. CM

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Aspen-Snowmass and Western Colorado weather discussion

Updated at 7:07am PDT, Monday October 23rd, 2017
CM

LONGER RANGE... Around Halloween and in early November, we expect the trough of low pressure to shift back to the western US with some more frequent shots of now much desired snowfall for Colorado. Halloween may be snowy... CM
SnowMap Legend
CUSTOM FORECAST DETAILS
Weather Icon

↑43° / 6c°

↓24° / -4c°

Mountain Graphic

Sky Condition

Mostly clear and a bit milder still, with dry air and not much wind. A temperature inversion is expected in the Roaring Fork Valley again (morning and overnight).

Snow Potential

None expected

Precipitation

None expected

Wind

Base: Variable at 4-12mph, becoming NW at 5-15mph, and above Treeline: NW at 10 to 20mph.

Weather Icon

↑45° / 7c°

↓27° / -3c°

Mountain Graphic

Sky Condition

Mostly clear and mild for late October, with continued dry air and not much wind. A temperature inversion is expected in the Roaring Fork Valley again (morning and overnight).

Snow Potential

None expected

Precipitation

None expected

Wind

Base: Variable at 4-12mph, becoming NW at 5-15mph, and above Treeline: NW at 10 to 20mph.

Weather Icon

↑52° / 11c°

↓28° / -2c°

Mountain Graphic

Sky Condition

Partly cloudy (high clouds), with clouds thickening and increasing due to an approaching storm. Winds are expected to increase.

Snow Potential

None expected

Precipitation

None expected

Wind

Base: Variable at 4-12mph, increasing to SW at 10-20 gusts to 30mph, and above Treeline: Increasing to SW at 20 to 30 gusts to 40mph.

Weather Icon

↑42° / 6c°

↓17° / -8c°

Mountain Graphic

Sky Condition

Partly cloudy with chance of light snow showers

Snow Potential

We are expecting a trace to 1 inch of snowfall (1 to 3cm)

Precipitation

40% chance for snow. (Potential precip: 0.03in, 0.84mm)

Wind

From the W at 5 to 18 MPH.

Weather Icon

↑34° / 1c°

↓15° / -9c°

Mountain Graphic

Sky Condition

Partly cloudy with chance of light snow showers

Snow Potential

None Expected

Precipitation

30% chance for snow. (Potential precip: 0in, 0mm)

Wind

From the NW at 5 to 16 MPH.

Weather Icon

↑39° / 4c°

↓21° / -6c°

Mountain Graphic

Sky Condition

Partly cloudy

Snow Potential

None Expected

Precipitation

None Expected

Wind

From the NW at 6 to 8 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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