The snow was falling 4 centimetres strong only a mere 2 days ago, and now we are already talking about 20 degrees. The continental climate strikes again!
Over the next few days, it seems the pattern is simple: Every day is warmer than the last. Today is somewhere around 10 for a high, a little warmer tomorrow, 15-18 degree range for Sunday and Monday, and then likely reaching 20 on Tuesday. Lows are much the same; slowly rising from a few degrees below 0 tonight to around 5 Tuesday night.
Now what is causing this? Pretty simple. Right now a lot of chilly air is present over Canada, specifically western areas. All of this air is expected to move over to eastern Canada over the next two days, then open up western Canada for ridging, and put a cut-off low just off the west coast. The jet stream will be in a straight line from Whitehorse to northern Ontario, and some lows will be riding over it. The first low will pass through on Sunday and not really affect us at all, while to second one will grab on to the cut-off low, and will slowly bring it east and gives us some more unpredictable weather mid-week.
Lows have counter-clockwise winds going around them, so to start these lows to the west will give us southerly winds, and give the already warm temperatures an extra boost on Tuesday. As these lows pass over though, the temperature will likely quickly drop, and it might give us some thunderstorms too. So because of these lows, we might quickly go back to cold after this heat wave.
That is all there is to say, so thanks for reading!