Strong to damaging wind gusts are possible through parts of Southern Ontario on Wednesday. However, it is unclear how strong they will be and the hardest-hit areas. A wind gust forecast will be issued on Tuesday once we have more information.
There is the risk of freezing rain for parts of higher elevations to the northwest of the GTA over the Dundalk Highlands and into Central/Eastern Ontario. This will be primarily during the afternoon and into the evening on Monday. However, there is low confidence in the extent of the freezing rain at this point.
A system may affect parts of Northwestern Ontario late Friday with heavy snowfall or freezing rain. The precipitation will continue into Saturday making for a messy Christmas Day. A special forecast for this will be coming on Thursday.
Inclement weather isn’t currently expected in the forecasted region on this day.
Inclement weather isn’t currently expected in the forecasted region on this day.
A system could bring accumulating snow between 5-15cm on Saturday to parts of Southern Ontario. The heaviest snow appears to be around Lake Ontario and into Eastern Ontario although that may change. There is very low agreement between the models at the moment. More details in a forecast to be released on Friday.
Strong to damaging wind gusts are expected to develop across parts of Northern Ontario on Thursday. However, the exact intensity of these gusts is currently unclear. Power outages and tree damage are possible. A full forecast will be issued on Wednesday once we have more data. In addition to this, heavy rainfall in excess of 25mm is possible in Northwestern Ontario.
Strong to damaging wind gusts are expected to develop across Southern Ontario on Thursday. However, the exact intensity of these gusts is currently unclear. Power outages and tree damage are possible. A full forecast will be issued on Wednesday once we have more data.
A strong storm will affect Southern Ontario on Saturday with the main story being potentially damaging wind gusts between 80-115km/h. This could result in some wind damage along with power outages during the day on Saturday. There will also be some heavy rain, however, there is low confidence in exactly how much could fall. More details to come in a full special forecast on Friday.
A winter storm is expected to bring accumulating snow and freezing rain to parts of Southern Ontario from Sunday into Monday. Details in our winter storm forecast can be found here.
There is the potential for snow squalls to develop off Lake Huron and Georgian Bay starting early Saturday morning and continuing through the day. The initial flow will favour the stronger bands to stretch across the Bruce Penisula and into Northern Muskoka, Parry Sound, Britt and Sundridge through the morning and afternoon. We expect the wind direction to change to a more northwesterly flow which will shift the band southward through Muskoka and into Simcoe, Bruce and Grey counties sometime during the late afternoon and evening. The squall activity may linger into Sunday, but confidence on that is low at this point.
It appears that some locations within the risk zone could pick up over 10cm of accumulation (and perhaps significantly more than that) by the end of Saturday. Not everyone will see this much snow, but the potential is there. We will further break down the areas that are most likely to see the heaviest snowfall in our accumulation forecast to be issued Friday afternoon or evening. Be sure to check back for more details on the impact and timing.
