Snow forecast through 1/8

Tomer’s Take: The atmospheric river now looks to continue through 1/8. Feet of additional snow accumulation likely in CA, UT, WY, CO. But, the 2nd period appears to generate less snow for UT than previous updates.

My forecast video 12/30:

Current Setup

Infrared satellite shows the Pineapple Express and parade of low pressure systems lined-up through 1/8.

Forecast Pattern

Forecast jet stream valid 1/8. The west-to-east orientation continues to act like a conveyor belt for moisture transport into the Western United States.

Moab-Grand Canyon

Per request, here’s what I see for the Moab-Grand Canyon area January 1-7, 2022.

	Moab	GC
1/1	100% Rain, 47/38, Gusty	100% Mix, 40/33, Gusty
1/2	90% Mix, 38/32	50% Snow, 31/25
1/3	30% Snow, 34/29	90% Snow, 29/23
1/4	20% Snow, 34/26	30% Snow, 30/20
1/5	30% Snow, 35/26	40% Snow, 33/20
1/6	30% Snow, 36/29	30% Snow, 33/22
1/7	20% Snow, 34/27	20% Snow, 34/21

Forecast Timing

Forecast radar/satellite valid 12/30-1/3.

Forecast Totals

Forecast snow totals (inches) valid 12/30-1/1.

Forecast snow totals (inches) valid 1/2-1/8. The Wasatch totals for this period have decreased. A storm system on 1/5-1/6 is weaker after departing CA. And, a storm system on 1/7-1/8 also appears weaker after departing CA.

Period grand totals 12/30-1/8:

Mammoth Mountain, CA: 94″

Tahoe/Palisades/Kirkwood/Heavenly: 69″

Alta, UT: 45″

Jackson Hole, WY: 28″

Aspen/Snowmass, CO: 25″

Crested Butte, CO: 42″

Wolf Creek, CO: 38″

Steamboat, CO: 31″

My forecast snow timeline for the Wasatch:

• 12/30: 6″
• 12/31: 18″
• 1/1: 9″
• 1/2: 2″
• 1/3: 1″
• 1/4: 1″
• 1/5: 4″
• 1/6: 4″
• 1/7: 0″
• 1/8: 0″

Forecast snow totals (inches) valid 12/30-1/8.