New Year’s Prescription

Tomer’s Take: Four different areas of low pressure are lined up for the West Coast and primarily California through 1/7. It’s a mild flow with heavy snow accumulation only at higher elevations. Very little moisture survives the trip into UT/ID/MT/WY/CO through 1/5. The pattern starts to shift after 1/5 with colder air rotating south from Canada into the Lower 48 and a storm system.

My afternoon forecast video:

Current Setup

Water vapor satellite shows an active Pacific flow with strong areas of low pressure lined-up. Main impact is to West Coast.

Forecast Jet Stream

Valid 1/6. A deep trough and colder air dives south into the Lower 48. This could be the pattern changer.

Valid 1/7. Same trough moves east with jet support.

Forecast Radar & Satellite

Forecast Totals

CA higher elevations get bigger totals. Mount Shasta could see 10-20 inches afternoon 12/29 through morning 12/30 above 10,000ft.

UT Snow: 1/4 (light), 1/6-1/7.

WY Snow: 1/1 (light), 1/6-1/7.

CO Snow: 12/31 (light), 1/4 (light), 1/7.

VT/NH/ME: 12/30 (light), 1/4 (light to moderate).