Big totals for CA, UT, WY, MT

Tomer’s Take:

• A powerful low pressure and jet stream deliver feet of snow to the West 11/7-11/10.
• Forcing ingredients include a 150mph jet stream/streak, strong orographics, and weak atmospheric river (AR) contribution.
• Peak snowfall times by mountain range are listed below.

Current Setup

Infrared satellite shows the moisture channel, storm track, and low pressure systems lined-up.

Sierra Snowfall

Snow is underway in the Sierra. Peak snowfall:

• Afternoon 11/7 through morning 11/9.
• Widespread 30-40 inches grand totals.
• Rideline wind gusts 60mph+.

Snow is falling at Kirkwood, CA.

Forecast jet stream flow valid 11/8. This is the day of peak snowfall for most of the Sierra.

Forecast Timing

Forecast radar/satellite valid 11/7-11/12.

Forecast Snowfall

Forecast snow totals (inches) between 11/7-11/10.

Peak Snowfall Times:

• Sierra: PM 11/7 – AM 11/9.
• Tetons: 11/7 – AM 11/10. About 3-4″ each day.
• Wasatch: PM 11/8 – AM 11/10.
• Big Sky: 11/7 – 11/9.

My forecast video 11/7: