Canada fall forecast: Ontario to Quebec to enjoy favorable conditions for fall foliage

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Warm and generally dry weather will continue to dominate across much of western Canada into the fall, bringing little in the way of relief to areas that are dealing with drought and high wildfire dang

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Warm and generally dry weather will continue to dominate across much of western Canada into the fall, bringing little in the way of relief to areas that are dealing with drought and high wildfire danger.

Farther east, rainfall will be below normal from southern Ontario to Quebec this fall with an abundance of warm afternoons well into October, followed by increasingly chilly nights.

Most of the Arctic fronts will be directed into northern Quebec, Labrador and the Maritimes this fall, resulting in some early periods of chilly weather. This pattern will also help reduce the threat of a landfalling tropical storm or hurricane into Nova Scotia.

Newfoundland will continue to have cooler and wetter conditions into the fall with several storms intensifying just offshore.

Little Relief in Store for the Western Drought

Warm and unusually dry conditions have persisted during the 2015 growing season from southwestern British Columbia to Alberta due in part to abnormally warm water over the northeastern Pacific and a stubborn high pressure system anchored along the west coast.

This type of pattern is expected to be the dominant pattern into the fall, which will lead to a continuation of warmer and drier conditions as Pacific storms and Arctic fronts are detoured away from the region. Expect a higher-than-usual number of days in excess of 30 degrees Celsius (86 F) away from the coast into early October.

The 2015-2016 ski and snowboard season will likely get off to a late start across the higher elevations of western Canada due to a lack of late-autumn snow and sustained cold.

Typical Fall Weather to Span From the Eastern Prairies to Northern Ontario

The fall of 2015 will be quite changeable from Manitoba to northern Ontario with fast-moving storm systems and fronts that bring brief periods of rainfall followed by crisp, sun-filled afternoons.

There is an increased risk of an earlier-than-usual frost/freeze in this region, especially in Ontario.

Drier Pattern Forecast From Southern Ontario to Quebec

The fall will be pleasant overall across this region with an abundance of sunny days. Rainfall will be slightly less than average.

Current signs point toward a favorable season for viewing the fall foliage later in September and into October.

Chill to be Directed Toward Atlantic Canada

Most of the chilly air masses that build up across the Arctic region this fall will be directed toward the eastern quarter of the country.

Areas from eastern Quebec through Labrador and down into the Maritimes will have longer periods of cool weather with brief periods of warmer weather mixed in.

Thanks in part to the strengthening El Nino, the threat for a landfalling tropical storm or hurricane will be lower than usual through the fall. However, ocean storms forming over the northwest Atlantic will harass parts of Newfoundland with rain and wind, especially during October and November.

El Nino’s Impacts to Arrive Late Fall

El Nino continues to intensify over the equatorial Pacific, and we expect this current episode to be one of the strongest El Ninos on record by the upcoming winter.

The main impacts for Canada from this El Nino should be felt from late fall through winter across Canada.

Strong El Ninos typically produce unusually mild winters across western Canada. Farther east, the impacts are less certain but tend to favor reduced snowfall around the Great Lakes region. Current indications are that this upcoming winter will not be nearly as cold as last winter across eastern Canada.

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