Environment Canada issued a snow squall watch for the following areas:
- Barrie – Collingwood – Hillsdale
- Midland – Coldwater – Orr Lake
- Orillia – Lagoon City – Washago
West to east snow bands are expected to develop early this evening off Lake Huron and Georgian Bay then shift and reform into a more northwest to southeast orientation for Friday.
The westerly bands this evening will affect portions of Grey and Bruce as well as the area from Honey Harbour to near Muskoka. The Muskoka area will only be affected during the evening hours.
The main squalls Friday are expected off Georgian Bay toward the Barrie area and off Lake Huron toward the London and Woodstock areas.
Snow squalls cause weather conditions to vary considerably; changes from clear skies to heavy snow within just a few kilometres are common. 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.