Snow then high pressure for the West

Tomer’s Take

  • Periods of heavy snow through 1/7 for the PNW with 2-3 additional storm systems. Then high pressure builds for a few days.
  • Jet stream shifts south through 1/8 and pushes heavy snow into ID, MT, WY, northern UT, and the Central & Northern Mountain zones of Colorado. Then high pressure builds 1/9-1/13.
  • Totals in the Tetons 1/4-1/8 could reach 40-50″. The bulk of snow at Jackson Hole accumulates on 1/5 and 1/6.
  • Totals in the Wasatch 1/4-1/8 could reach 30-36″. The bulk of snow at Snowbird accumulates on 1/5.

Unprecedented snowfall closed Timberline, OR on 1/3. I’m forecasting another 3 feet through 1/7.

Timberline Lodge.

Infrared satellite shows the storm track.

Infrared satellite 1/4/2022 5am.

High pressure follows this storm cycle. A look at 1/10 shows a splitting jet stream and high pressure ridge over the West. It’s not bulletproof and small waves of moisture may sneak through.

Jet stream valid 1/10/2022, GFS interpretation.

Snow Forecast

Let’s look at my snow forecast in two time-periods.

1/4-1/8:

Inches of total snow 1/4-1/8.

1/9-1/12: Notice the big drop-off in snowfall as higher pressures build.

Inches of total snow 1/9-1/12.

Let’s drill down, here’s my snow forecast

Inches of total snow.

Cameron Pass, CO:

Inches of total snow.

For more analysis please watch my forecast video:

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