25 Sep 2016 - Sunday at 1:30am PST

Currently and through Monday - What is left of a cold and early season snow maker is moving across the northern Plains, after it dropped 1+ feet of snow across portions of northern Utah, and some lighter snow across northwest Colorado in recent days. A strong high pressure ridge is dominating the western US with mostly sunny skies and warmer than average temperatures today.

Tuesday and Wednesday (27-28 September) - High pressure ridging shifts eastward some, but remains the dominant weather feature across the western US, with warmer temperatures into the 80's even in some mountain areas of the west.
Thursday and through next weekend (29 September - 02 October) - A cold Gulf of Alaska low pressure system moves into the Pacific Northwest to northern California and inland through the northern Rockies toward late weekend, with valley rains and high mountain snow. Some areas of northern Idaho and western Montana could see snow levels drop to near 4,000 feet (resort elevations) with this one, though significant snowfall is not expected. Tahoe resorts should see some showers by Sunday (02 Oct) as the low pressure system cuts south. The southwest US including southern California through Colorado, will see some showers and thunderstorms developing in the warmer and subtropical air that becomes pulled into the area by this cold low across the Pac NW, and a low pressure circulation across southern California.
Following week: Monday through Wednesday (03-05 October) - The low pressure systemn that hit the Pacific Northwest/ Tahoe moves inland and hits Wyoming, northern Utah, and Colorado with mostly light rains and some snow to higher elevations, probably just areas above 8,000 feet for Salt Lake area resorts like Alta and Brighton, while snow levels should bottom out at similar levels for Colorado. We may see some snow in Aspen (8,000 feet). otherwise, areas across the southwest US look dry and windy, while a high pressure ridge builds in across the west coast (Tahoe-Mammoth included), for mostly sunny and milder weather there.
LONGER RANGE OUTLOOK
After 05 October to 10 October - High pressure ridging looks like it may be the most dominant feature, for mostly warmer than average temperatures and dry conditions for much of the western US. CM

TAHOE and UTAH custom forecasts/ Tahoe and Utah specific weather discussions are coming back this fall!