Snow squall watch in effect for:
Sault Ste. Marie – St. Joseph Island
A low pressure system is currently affecting much of northeastern Ontario with periods of snow. As the system departs tonight, cold northwesterly winds blowing over Lake Superior are expected to develop bringing the threat of snow squalls to the area. The threat of snow squalls will continue into Tuesday.
Snowfall amounts of 10 to 15 cm per 12 hour period are possible. Northwest winds gusting to 60 km/h would also result in considerable amounts of blowing snow reducing visibility.
Snow squalls cause weather conditions to vary considerably, changes from clear skies to heavy snow within just a few kilometres are common. Public Safety Canada encourages everyone to make an emergency plan and get an emergency kit with drinking water, food, medicine, a first-aid kit and a flashlight.
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.