Dangerous blizzard conditions later today and tonight.
Strengthening northwesterly winds are quickly blasting in bitterly cold Arctic air today in the wake of an intense winter storm that is moving across the Renfrew area into Southern Quebec. Flurries off of Lake Huron and Georgian Bay will intensify into frequent strong snow squalls by this afternoon across the regions. Many of the snow squalls will extend quite far inland as the winds become quite strong and gusty. Local snowfall amounts of 15 to 30 cm are quite possible in snow squalls by Tuesday morning.
A combination of the dangerous snow squalls with extreme wind chills of minus 35 to minus 40 will produce frequent blizzard conditions this afternoon and tonight. Frequent to widespread very low to nil visibilities with near whiteout conditions are expected especially in exposed areas during the snow squalls.
The combination of a fresh heavy snowfall from last night’s storm with intense snow squalls today with bitter wind chills poses a life-threatening risk for anyone outside for any duration, or stranded in vehicles if roads become snow-blocked. Travellers need to ensure they have an adequate car emergency kit and ample fuel if travelling any distance.
The blizzard conditions will slowly ease somewhat on Tuesday although the snow squalls and blowing snow are likely to continue in many areas.Dangerous snow squalls developing Monday producing near blizzard conditions. Combined with extreme wind chills, this may become potentially life-threatening if anyone becomes stranded in vehicles on snow-blocked highways.
In the wake of the storm centre, bitterly cold west to northwest winds will result in the development of intense snow squalls southeast of Lake Huron and Georgian Bay. Snowfall amounts of 10 to 15 cm are forecast over a large area Monday as the winds carry the squalls far inland and are forecast to shift during the day. Very low visibilities are likely with near whiteout conditions under the most intense snow bands.
These cold brisk winds are expected to produce widespread dangerous wind chills of minus 30 to minus 35 beginning late Monday. The combination of a fresh heavy snowfall from tonight’s storm with intense snow squalls on Monday with bitter wind chills poses a life-threatening risk for anyone outside for any duration, or stranded in vehicles if roads become snow-blocked. Travellers need to ensure they have an adequate car emergency kit and ample fuel if travelling any distance.