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.
Some forecast model clues through the end of August and an update on global sea surface temperatures.
Tornado threat into Tuesday from southeastern Saskatchewan to northwest Ontario.
Latest weekly clues to the long range forecast through mid-August.
Major storm for the Prairies early next week could bring heavy rainfall and severe thunderstorms.
Severe thunderstorm threat later Thursday and a general look at the upcoming weather pattern.
Latest long-range update and a look at global ocean temperatures.