Southern Ontario - After a messy winter storm on Wednesday (and messy days of snowsqualls in the snow belt areas, which I must say, was EXTREMELY impressive... Huntsville saw over 60 cm of snow within 24 hours... quite impressive, I must say again)..
Anyhow, there is currently a system tracking its way north. Currently, it is located in the Carolinas, carrying its moisture and of course, some heat from the Gulf of Mexico along with it. The system has brought heavy rain throughout the day for much of Florida and South Carolina. It will reach into Southern Ontario after midnight.
From the current standpoint, the system will start off as snow for much of southern Ontario (this includes anywhere east and south of Kingston), turning to a mixed precipitation (wet snow, iced pellets), and potentially some light drizzles after the warm front has passed through. Temperatures for the GTA, for now, would be around 2 - 3 C. The precipitation for the system should end by the end of the evening, when temperatures will hold at around the freezing mark for the rest of the night. The snow should accumulate to 3 - 5 cm, that's my personal thought. Though many forecasters and some forecasting models are calling for an upwards to 10 cm.
Areas north and east of Kingston should expect the system to stay all snow. Upwards to 5 - 10 cm expected for the Montreal area.
On Monday, the cold front will swing through much of Southern Ontario. In front of the front would be some rain showers, slowly turning into mixed precip. and light flurries throughout Ontario by the time evening arrives in Southern Ontario. Behind the front would be frigid arctic air, the same air mass Ontarians have been experiencing for the last several days. Strong (though not quite as strong as the winds on Thursday) northwesterly winds would accompany with the front, and the days afterwards. This will translate to the lake effect machine turning on again. Since this time the winds are shifted to the northwest, the Haliburton areas, Huntsville, Parry Sound, and the western shores of Georgian Bay should not be impacted by this snowsquall activities. What we are concerned right now would be the western shores of Lake Huron, and the southern shores of Georgian Bay. Upwards to 10 cm may be expected for areas such as Collingwood, Owen Sound, Kincardine, etc. More updates on this snowsqualls activity later, after this system has passed through.
The snowsqualls could make its way into the GTA, with upwards to 3 cm. Again, more on this later. Frigid temperature is expected to arrive to the GTA after the storm. Temperature will plummet to a low of negative double digits as a night time low on Wednesday.
As for the current system that we're concerned with, I have not yet to create a map on this system, but currently, I am expecting the first flakes to fall in Windsor (extreme SW Ontario) by around midnight, pushing its way into London by around 2 AM, into the Golden Horseshoe area by around 4 AM, and into eastern Ontario by sunrise.
For areas east and south of Kingston, a general guideline would be around 6 - 9 hours of light snow, followed by mixed precipitation and light rain later in the afternoon. The farther south you are, the less snow period you should expect and therefore more rain.
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