Overview of Latest Blizzard Warning: Weather alerts

Hazardous lake effect snow squalls expected tonight through Friday. Blizzard conditions likely late overnight and Thursday morning.

Hazards:
Locally heavy snowfall with accumulations of 40 to 80 cm through Friday.
Westerly winds gusting to 80 km/h resulting in near zero visibility in blowing snow.
Peak snowfall rates of 5 to 10 cm per hour.

Timing:
Continuing into Friday, with the worst blizzard conditions late overnight and Thursday morning.

Discussion:
Lake effect snow squalls off Lake Huron are forecast to become better organized as the night progresses. Strong westerly winds gusting up to 80 km/h will develop late overnight into Thursday morning resulting in widespread blowing snow with near zero visibility. Winds should ease somewhat by Thursday afternoon, although heavy snowfall will continue into Friday. Travel is expected to be difficult to nearly impossible.

Locally higher snowfall amounts greater than 80 cm are possible if a strong snow squall band remains over the same area.

Road closures are likely given the expected dangerous travel conditions.

Travel is expected to be extremely hazardous due to widespread poor visibility. Rapidly accumulating snow will make travel difficult.

Travel is not recommended. If you must travel, keep others informed of your schedule and destination and carry an emergency kit and mobile phone. If you become stranded in a vehicle do not leave. The vehicle offers a form of protection from the cold. A single person walking through the snow is harder to find than a stranded car or truck.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or tweet reports using #ONStorm.

Hazardous lake effect snow squalls expected tonight through Friday. Blizzard conditions likely late overnight and Thursday morning.

Hazards:
Locally heavy snowfall with accumulations of 40 to 80 cm through Friday.
Westerly winds gusting to 80 km/h resulting in near zero visibility in blowing snow.
Peak snowfall rates of 5 to 10 cm per hour.

Timing:
Continuing into Friday, with the worst blizzard conditions late overnight and Thursday morning.

Discussion:
Lake effect snow squalls off Lake Huron are forecast to become better organized as the night progresses. Strong westerly winds gusting up to 80 km/h will develop late overnight into Thursday morning resulting in widespread blowing snow with near zero visibility. Winds should ease somewhat by Thursday afternoon, although heavy snowfall will continue into Friday. Travel is expected to be difficult to nearly impossible.

Locally higher snowfall amounts greater than 80 cm are possible if a strong snow squall band remains over the same area.

Road closures are likely given the expected dangerous travel conditions.

Travel is expected to be extremely hazardous due to widespread poor visibility. Rapidly accumulating snow will make travel difficult.

Travel is not recommended. If you must travel, keep others informed of your schedule and destination and carry an emergency kit and mobile phone. If you become stranded in a vehicle do not leave. The vehicle offers a form of protection from the cold. A single person walking through the snow is harder to find than a stranded car or truck.

Please continue to monitor alerts and forecasts issued by Environment Canada.

To report severe weather in Ontario, send an email to ONstorm@ec.gc.ca or tweet reports using #ONStorm.