Thursday, March 7th 2019, 9:40 pm - The details on how this temperamental season will play out for your part of Canada
A furious finish to winter is expected east of the Rockies with some wild winter weather through early March.
Visit our Complete Guide to Spring 2019 for an in depth look at the Spring Forecast, tips to plan for it and much more
For most of Canada this is continuation of the frigid pattern that has dominated February, but for southern Ontario we will see more consistency in the cold pattern. Temperatures will not be as cold as what we saw during the middle of winter, but from coast to coast temperatures will be well below normal for the first half of March.
However, during mid-March we expect a national pattern change which will feature a quick transition from winter to spring weather. The map below shows the pattern that we expect to dominate during the second half of March and into early April.
This is a sharp contrast to what we saw during the same time last year when much colder than normal temperatures dominated late March and April from Alberta to Atlantic Canada.
SPRING TEMPERATURE PATTERN
However, it won’t be clear sailing all the way until summer. It is important to remember that spring is a tumultuous season, and this year will be not be an exception. We will still have some chilly interruptions to the warmer pattern well into April and May.
The map below shows the temperature pattern that we expect for the spring season as a whole.
Near normal or above normal temperatures are expected to dominate across most of the country -- a welcome contrast to the second half of winter.
SPRING PRECIPITATION PATTERN
We expect near normal precipitation across most of Canada, but above normal precipitation is expected for parts of northern Ontario and Manitoba and from the central coast of B.C. to the Yukon. We are also watching the risk for drier than normal conditions across parts of the southern Prairies.
We expect fewer than normal storms across Canada this spring, but a few of the storms will tap into subtropical moisture and bring substantial rainfall totals. This will result in seasonal totals that are close to normal.
Flooding is also a major concern this spring for many regions of the country where we will have well above normal amounts of snow on the ground when the pattern reversal occurs. The cold pattern during early March will allow the snowpack to continue to increase at a time when normal temperatures are climbing above freezing. Rapid snow melt will then occur when we shift to above normal temperatures.
For more regional details on our forecast for March, April, and May for each region of the country, please read on.
After a frigid and snowy February, a milder and gentler pattern will finally arrive as we head into March. Above seasonal temperatures are expected to dominate during the spring, but it will definitely not be smooth sailing all the way to summer as periods of cooler and unsettled weather will still occur at times. During the periods of warmer and wet weather we will have a heightened threat for spring flooding. On the flip side, though, the abundance of snow from the winter will allow for some excellent spring skiing.
FORECAST FOCUS: 'HARD TO BELIEVE' SPRING IN B.C.
A rather wintry pattern will continue through early March, but a remarkable pattern change will finally bring some long-awaited relief during mid to late March. Unfortunately, this will also bring the risk for spring flooding across the regions where there is deeper than normal snow cover (especially near and north of the Yellowhead Highway). However, the Prairies are notorious for their wild swings in weather, and this spring should solidify that reputation. After a period of warmer spring weather, we will still have to watch the threat for shots of colder, wintry weather through the season.
WATCH BELOW: ABRUPT ARRIVAL FOR PRAIRIE SPRING
ONTARIO AND QUEBEC
Early March will feature weather more typical of January, but a pattern reversal is expected during mid-March with an extended period of warmer spring weather for the second half of March and into early April. This will bring a heightened threat for spring flooding, especially across northern Ontario and the Ottawa Valley where the snow depth going into spring will be well above normal. This extended period of warmer spring weather will be a welcome contrast to last year which featured one of the coldest Aprils on record. However, after a strong start, spring will struggle at times with significant shots of colder weather that will interrupt the mild pattern later in April and into May.