Big totals for the West next 5 days

Tomer’s Take

  • Active jet stream with 3-4 storm systems for the PNW, B.C., ID, MT, and WY. Feet of total accumulation.
  • Then, the storm track shifts south and hits northern Utah and the Central & Northern Mountains of Colorado with major snow accumulation (1/4-1/8).
  • After 1/8, high pressure builds into the Intermountain West.

The key feature is the dipping jet stream and large trough of low pressure over the North Pacific. Pressures are running 2-3 standard deviations below the 30-year average. This means it’s significant.

Infrared satellite 1/3/2022 5am.

Jet Stream

A powerful jet stream directs 3-4 storm systems into the PNW and northern tier of the Rockies.

Jet stream forecast valid 1/4-1/5.

High pressure builds in after 1/8. Notice the splitting jet. Bigger storm system for the Northeast.

Jet stream forecast valid 1/10.

Snow Forecast

Total snow forecast 1/3-1/10:

Inches of total snow 1/3-1/10.

Drilling down, here’s my snow plume for Alta, UT:

Inches of total snow by 1/10.

Jackson Hole, WY:

Inches of total snow by 1/10.

Wind

Powerful jet stream through 1/8 delivers strong wind along with the heavy snowfall.

Forecast gusts (MPH).

For more analysis please watch my forecast video:

2 thoughts on “Big totals for the West next 5 days

  1. Jordan

    Chris thanks for what you do! I refresh often to see your daily posts! What is your opinion on the jetstream trend for next week 1/11-1/16? I have a trip out the the PNW (Alpental specifically) but will hold off if there’s a big warming trend. Cheers.

    Reply

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