The start of Fall stays warm and dry across most of the West with high pressure in control through October 6. Drier than normal areas are shown in the brown colors.
There are two areas to watch for heavier than normal precipitation (green-blue areas). 1) British Columbia, 2) Great Lakes and Northeast. Some of that precip will fall as snow in British Columbia on the higher peaks.
The red “L” represents lower pressures, while the blue “H” represents higher pressures. The blue line represents approximate position of the Polar jet stream.
In Colorado, October is an important month. We normally see the first freeze and first measurable snow in a number of the major cities. This indicates a shifting jet stream. Right now it’s just a waiting game.
Loveland Ski Area and Arapahoe Basin will start making snow in October and then race to see who opens first.