There are Snow Squall Watches in effect for parts of Southern Ontario this morning including the Waterloo region where Environment Canada is warning residents of Mount Forest, Arthur, and Northern Wellington County, as well as most areas west and north, that snow squalls are expected today into Friday morning.
Lake effect snow continues to affect areas east of Lake Huron and is expected to intensify midday as a cold front approaches. Winds will become northwesterly this evening and colder air will further intensify snow squalls. The snow squalls are expected to become more isolated tonight into Friday morning.
Some areas may see in excess of 15 cm by Friday morning.
Travel may be hazardous due to sudden changes in the weather. Surfaces such as highways, roads, walkways and parking lots may become difficult to navigate due to accumulating snow.
Snow squall watches are issued when conditions are favourable for the formation of bands of snow that could produce intense accumulating snow or near zero visibilities.
There has also been a Winter Weather Travel Advisory issued to be in effect this morning and afternoon for the Niagara Region including Niagara Falls, Welland, St. Catharines, Grimsby, as well as Dunnville, Caledonia, and Haldimand.
A band of lake effect snow is affecting portions of eastern Lake Erie early this morning. Latest analysis is suggesting that this band will slowly lift northward through the morning to reach northern Niagara by late morning. This band is then expected to shift back south in the afternoon and out of the region by evening.
Southern Niagara will likely be impacted the most with 10 to 15 cm possible in areas that receive the most persistent snowfall. Northern Niagara will likely see considerably less accumulation.
Travel today will likely be hazardous at times. In addition, gusty winds may result in areas of blowing snow and poor visibility.
If you are planning to travel in these regions you should be aware of potential poor conditions.
Image and Information from Environment Canada.