So, where do we go from here? We are in the midst of a pattern change which is bringing a return to below seasonal temperatures from Manitoba to the Maritimes. Meanwhile western Canada will remain warmer than seasonal, though many southern coastal areas and interior valley will be cooler due to the fog. Newfoundland will remain warmer than seasonal, but with a trend to colder temperatures during the week. Also, it is important to keep in mind that heavy snow can still occur with above seasonal temperatures. The following image shows national temperatures relative to seasonal through Thursday, January 23rd.
As head into the end of January, there are strong indications that we are headed into a very cold weather pattern that will continue expand across the country and potentially be as cold or colder than what we experienced during the first week of January.
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The image below shows that during the final week of January, much of the west of the Rockies is forecast to be colder than seasonal with the coldest temperatures extending from near Winnipeg to southern Quebec. During this period we will return to a pattern similar to what we experienced in early January with air masses that originated in Siberia. It is also worth noting that for much of Canada the last week of January has the coldest “average” temperatures of the year, so colder than seasonal temperatures during this time would be exceptionally cold.
NEXT PAGE: HOW HIGH IS THE FORECAST CONFIDENCE?