Big Totals Through 2/29

Tomer’s Take: The main trough of low pressure hitting CA breaks loose tonight and slides through UT/CO 2/21-2/22. The pattern shifts on/after 2/25 when the Northern Jet Branch buckles south and merges with the Subtropical Jet. Big totals likely.


*4:30PM 2/20 Update.

CA 3-6″ Tonight – AM 2/21.

Wasatch 8-16″ Next 24 Hours.

Tetons 1-2″ 2/22.

Colorado 1-4″ Next 48 Hours.

Northern Branch Merger 2/25-2/29, WNW Flow.

Northeast Light/Moderate Snow 2/23, 2/27-2/28.

My afternoon forecast video update:

Current Setup

Water vapor satellite shows the large trough of low pressure hitting CA then breaking loose and moving through UT/CO 2/21-2/22.

The second area of low pressure in the Gulf of Alaska sends a small piece of energy south into CA while the main trough slides into AK/Canada then south into the United States with a buckling Northern Branch.

Orange/red = drier air aloft.

Forecast Jet Stream

Forecast Radar & Satellite

Forecast Totals

Grand totals by late 2/29.