Northern Ontario: Winter Weather Hazards Outlook for Wednesday, January 5, 2022

/

Forecast Discussion

Another chilly start to the day is expected for Far Northern Ontario as you wake up on Wednesday with the air temperature between -30 and -35. When factoring in the wind gust, it will feel closer to -40 in some areas especially up towards Fort Severn and Winisk. Be sure to dress according to the temperature and limit outdoor activity. Cold-related dangers such as frostbite can take only a few minutes to occur with temperatures this cold. Strong wind gusts between 80-90km/h are expected during the day on Wednesday around the Lake Superior shoreline. They will weaken by the end of the day. Heavy snowfall will also continue for Northeastern Ontario on Wednesday. See our forecast here for more details on that.

Northern Ontario: Winter Weather Hazards Outlook for Tuesday, January 4, 2022

/

Forecast Discussion

Extreme cold temperatures are expected to invade Far Northern Ontario on Tuesday with the air temperatures dipping to below -30°C and the wind chill making it feel near or below -40°C (especially up around Fort Severn and Winisk which may come near -45°C). The coldest air is expected during the morning, but it will still be quite chilly throughout the day as well with high temperatures still in the -20s. Similar cold temperatures will be found overnight and during the morning on Wednesday as well. Be sure to dress according to the temperature and limit outdoor activity. Cold-related dangers such as frostbite can take only a few minutes to occur with temperatures this cold.

Southern Ontario: Winter Weather Hazards Outlook for Monday, December 27, 2021

/

Forecast Discussion

A messy system is expected to move into Southern Ontario starting Monday morning. It appears that it will begin as some light to moderate snowfall to those north of Lake Erie. The Windsor and Chatham-Kent region should primarily see just rain although could be mixed at times during the morning. This snow won’t be too impactful with general totals ranging from 2-4cm (a few locations may pick up near 6cm and others might see only a trace). Due to the nature of this system, we can’t issue a precise snowfall accumulation map as it will be extremely variable depending on elevation and temperatures.

The main concern with this precipitation is during the afternoon and evening where we will see the snow begin to switch over to some freezing rain or drizzle. This risk is quite extensive including Sarnia, London, K/W and into the GTA. It won’t be particularly heavy, but it will linger for several hours. Expect some icy road conditions for your Monday evening commute. A thin layer of ice accretion on surfaces may result in isolated tree damage or power outages, but these should be very limited as the freezing rain will be very light.

The risk of freezing rain will shift into Central and Eastern Ontario later in the evening and overnight Monday. The Ottawa region should remain predominantly snow but they likely won’t see anything more than a few centimetres from this system.