Alyeska 7-Day Snow Forecast

Alyeska Long-Range Snow Forecast Updated today

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Updated 23 April 2026 00:50 NZST

Long-Range Snow Forecast for Alyeska

Long-range (14 to 45 days) from 22 April.

For Forecast detail, see below.

Alyeska Snow Forecast Highlights

When will there be fresh snow in Alyeska?

Alyeska Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (460m)
Next Snow Expected	22 April
Next Snow Amount	1cm
Next 48 Hours	12cm
Next 7 Days	19cm

Long-range Snow Outlook for Alyeska

Snowfall

Snow Line

Max 5℃
Min 0℃

17cm New Snow

Snow Line from 549m to resort level (80m).

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Alyeska Long-Range (2 weeks+) Snow Forecast Outlook

Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.

16 Day Weather and Snow Forecast for Alyeska from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Wed 22	1cm New Snow Cloudy. Snow Line from 209m to resort level (80m).	Max 3℃ Min 0℃
Thu 23	up to 3cm New Snow Light snow showers at altitude, light rain showers below. Snow Line from 549m to 249m, with rain below.	Max 5℃ Min 3℃
Fri 24	up to 10cm New Snow Light snow at altitude, light rain below. Snow Line from 529m to 229m, with rain below.	Max 5℃ Min 2℃
Sat 25	up to 2cm New Snow Fog. Snow Line from 389m to 279m, with rain below.	Max 5℃ Min 3℃
Sun 26	Fog.	Max 4℃ Min 2℃
Mon 27	Fog.	Max 4℃ Min 2℃
Tue 28	up to 1cm New Snow Fog. Snow Line from 439m to 289m, with rain below.	Max 5℃ Min 2℃

This Snow Forecast for Alyeska, United States gives the predicted Snowfall and Freezing Levels for the next week.

The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Alyeska, on any given piste or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.

Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.

Alyeska Snow Forecast updated at 00:50 NZST, next update expected 06:00 NZST.

Ensemble forecast for Alyeska, USA at 80m

Daily Mean Temperature (yellow line is control)

Daily Total Precipitation (blue line is control)

What are Forecast Ensembles ? Multiple forecasts from running the same weather model with slightly different inputs. The prominent line (the 'control') is the model output from standard inputs, the thinner lines are the variations. Plotted together, they show a range of possible outcomes; the closer they are, the higher the confidence.

How to read Long Range Ensemble Forecasts

These forecasts are from ECMWF EC46, a long-range, low-resolution (area) model. They may not accurately reflect local conditions and should be read as area forecasts, indicating whether the coming weeks are likely to be warmer, colder, wetter, or drier than average.

What to look for?

Temperatures trending downward at the same time as precipitation spikes upward... means snow!

Lines close together indicate a high confidence, while wider spreads signal uncertainty.

United States Hotels Map

Snow Reliability

Alyeska typically sees an impressive average snowfall of 650 inches annually, with snow depths varying throughout the season. For the latest snow conditions and detailed reports, check J2Ski for up-to-date information.

Off-Piste Safety in Alyeska

Before skiing or snowboarding off-piste in Alyeska, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.