Vancouver, BC - I haven't spend much time writing blogs lately, especially I haven't wrote about the west for a pretty long time. Just mind, a system off BC coast will provide the local area a series of heavy showers.

St. Johns, NFLD - Another weather story that is pretty interesting. The Colorado Low that stroke much of Southern Ontario and into Quebec had advanced its way into the Maritimes. The locale is expecting heavy winds as well as heavy precipitation in some localities. St. John's itself could see up to 10 mm of rain before changing into snow. The snow showers would be brief, and would only last for, I'd say, 2-3 hours near Saturday evening. Ice pellets also possible, but no accumulation expected.

Markham, ON - As for the major story goes, Toronto's January Thaw. A developing Alberta Clipper (as of 7:00 EST, it is located in Missouri), is bringing an Arctic Stationery Front behind the system. The front extends as far north to the southern parts of Northwest Territories. You can compare the temperature on the two sides of the front to see how powerful it is. At 9:00 EST (8:00 CST / 7:00 MST), Regina (in the polar side of the front) reports a temperature of -9 C. On the other hand, Lethbridge reports a temperature of -1 C. They are at about the same latitude and almost the same in altitude wise.

The Clipper system remains precipitation-less, for now. As the clipper system moves through the Great Lakes, it gains moisture, and snow could fall across much of southcentral Ontario, while mostly a rain/snow mix towards southwestern Ontario. A general 2-4 cm (1-2 inch) is expected, while the leeward sides of the lake could experience more due to Lake Enhancement. (This system owes part of its precipitation to Lake Effect) A general 5-10 cm (2-4 inches) can be expected for leeward sides of the lake. The heaviest snow is expected to fall on Monday afternoon, near 2pm EST or so. The polar  front will cross our area around 2:30 pm to 4:00 pm EST, depending where you are located. This drop of temperature will bring our daily highs back to the negative single digits Celsius (High 20s to Low 30s on the Fahrenheit Scale).