Once we’re done with the actual snow storm that could leave behind as much as 30cm locally, the snow squalls take over. Prolonged snow squalls are likely to develop Friday afternoon as much colder air begins to fill in following the passage of the low pressure system,.
Snow squall watch in effect for:
Agawa – Lake Superior Park
Sault Ste. Marie – St. Joseph Island
Searchmont – Montreal River Harbour – Batchawana Bay
Snow squalls likely beginning Friday afternoon through Saturday morning.
Locally heavy snow squalls are forecast to develop to the east of Lake Superior as cold northwesterly winds develop once again. Locally heavy snowfall accumulations in excess of 15 cm will be possible with these snow squalls, particularly Friday night into Saturday morning.
Given the strong winds gusting up to 60 km/h, areas of low visibility in heavy snow and blowing snow will be a concern. Motorists should consider changing travel plans accordingly.
Visibility may be suddenly reduced at times in heavy snow. 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.