Snow squalls have ended for Sault Ste. Marie with only a fraction of accumulation that was forecast. Earlier Saturday, 20 cm was expected, however most of the activity hit north of the city. Milder air is now on tap for the rest of the week, giving chance once again of a green Christmas.
Cold air flowing over Lake Superior is generating flurries and local snow squalls as expected. The snow squalls will remain fairly intense making travel hazardous as zero visibilities and significant blowing snow are likely. Total snowfall accumulations of 30 to 40 centimetres will be possible under the heaviest bands by tonight east of Superior, with up to 20 centimetres possible near Sault Ste. Marie.
The snow squalls are expected to shift farther south, out of the Agawa – Lake Superior Park region as winds become more northwesterly this morning.
Snow squalls cause weather conditions to vary considerably; changes from clear skies to heavy snow within just a few kilometres are common. Visibility will be suddenly reduced to near zero at times in heavy snow and blowing snow. Travel is expected to be hazardous due to reduced visibility in some locations.
Snow squall warnings are issued when bands of snow form that produce intense accumulating snow or near zero visibilities.