Saturday, January 7, 2012

Pattern Change On The Way! Colder Weather

After the push of pacific mild air from BC and record breaking temperatures over the past few days we can now expect a change to cooler than normal weather, and wetter than normal conditions. A large arctic air mass will begin to surge across the northwest areas of the prairie region by Tuesday, southern Manitoba on Wednesday before crossing the USA border on Thursday. The short blast of arctic air will follow behind an area of low pressure that will sag south over the prairies bringing with it the odd flake of snow over Southern Manitoba, and will then continue moving south over the northern states. As the area of low pressure passes on Tuesday, temperatures will struggle to get any higher than -10C and -20C for a daytime high, and -20C to -30C for an overnight low on Wednesday, which is big difference compared to this week when temperatures were above zero. The first cold blast will occur between wednesday and thursday. The long range outlook on the GFS is pointing toward another push of warm pacific air that could move across the prairies on thursday and friday, before we get a rush of arctic air through sunday the 16th and Friday the 20th. This is when we could see temperatures again plunge to near windchill warning criteria, something we haven't seen in several weeks. After that there will be a period of several weeks where there could be some periods of warm weather and cold weather as arctic air could park itself over north and central manitoba. Although this is still quite far ahead, there also might be the chance for more lows to enter our area as the difference in temperatures could allow for more moisture availability allowing for higher amounts of precipitation which means more snowfall. For all the winter folks out there who have been waiting for the cold weather and snow, just wait it is on the way!

How long will the second cold blast last? how much snow can we expect to see over the next several weeks? Find out More Stay Tuned!



2 comments:

  1. Here is an interesting read about our upcoming weather outlook on brett andersons weather blog have a look, click my name for the site.

    ReplyDelete
  2. High of 5C Tomorrow, yet today is the 31st day of seeing well above normal temperatures in Winnipeg! What happened to our winter?

    ReplyDelete

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