Here is my latest interpretation of the ECMWF weekly long-range forecast output that goes out to the week of Oct. 15-21.
Also, computer models are at odds in regards to a pattern change across North America next week. Overall, it does look much colder for western Canada with the potential for some snow over the Canadian Rockies and even into Calgary during the Tuesday/Wednesday period.
Another stretch of dry weather for parts of eastern Canada into next week.
A warm first half of summer for a majority of Canada.
Fast, west-to-east jet stream pattern across southern Canada into next week.
Clues to the long range over the next several weeks across North America.
Potential for significant rainfall over southwestern Alberta late this week into the early weekend.
A strong, upper-level storm system will bring significant rain, severe thunderstorms and much cooler air to parts of western and central Canada into early next week.