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    Spring 2013 Forecast for Canada

    March 13, 2013; 8:31 AM ET

    2013 Canada Spring Outlook

    Temperatures this spring will end up near to above average across most of eastern, northern and Atlantic Canada, while much of central and western Canada will be dominated by near or cooler-than-normal conditions....

    This temperature pattern across the country (cooler West but warmer East/North) will have some similarities to last year's spring, but it will not be quite as warm overall. The spring of 2012 was the 9th warmest on record for Canada.

    Expect a more active storm track across the eastern Prairies and into northern Ontario, which will result in a wetter spring and additional late-season snowfall across this region and extending up into central Quebec. This primary storm track will also lead to a higher number of warm spells getting into southern and central Ontario, which includes the Windsor to Toronto corridor.

    The overall threat of strong to severe thunderstorms will be higher than normal across southern Ontario during May and into June.

    Despite the wetness, the risk for widespread river flooding across southern Manitoba (including Winnipeg) will be about average for this time of year.

    Drier weather will persist across much of Alberta this spring, which includes the cities of Edmonton and Calgary.

    Spring ski conditions should be good to excellent across western Canada.

    Wetter conditions will return to much of the West Coast, especially north of Vancouver and Victoria, BC, after a rather dry start to the year.

    The cooler-than-normal waters of the eastern Pacific will no doubt have a greater cooling influence along the coastal regions of BC into the summer thanks in part to the negative phase of the Pacific Decadal Oscillation.

    The spring of 2013 will be fairly typical of most springs from the Ottawa region through southern Quebec (Montreal and Quebec City) and into northern New Brunswick as temperatures and precipitation will end up close to average.

    A higher-than-normal amount of Atlantic storms will threaten eastern Newfoundland, including St. John's, while narrowly missing the Maritimes.

    Confidence remains high that temperatures will continue to average warmer than normal throughout much of far northern and northeastern Canada this spring.


    Other notes....

    **Ice coverage across the entire Great Lakes is currently averaging close to 30 percent, which is still below the average of 39 percent for this week, but well above the 12 percent coverage from last spring. The complete melt out of the Great Lakes ice should once again end up ahead of the normal schedule.

    **The warmest spring for Canada occurred in 2010. Records go back to 1948.

    **Spring temperatures have warmed an average of 1.8 C (3.2 F.) over the past 65 years.

    **Canadian springs have trended wetter over the past 65 years.


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