Pattern Clues into Early October

Below is my latest interpretation of the latest weekly ECMWF with additional input from the CFSv2 and current observations.

Upper ridge expected to rebuild along the West Coast later in the month, which will lead to a return to drier conditions in BC.

Position of ridge should allow some chilly air masses to press southward through the Prairies into early October as main storm track extends from Rockies to eastern Prairies and Great Lakes.

This type of pattern could lead to some early season snow in the southern Prairies during the end of September and early October.