Trans-Canada Highway Weather Warnings for Monday December 21. We will update our weather info daily over the Christmas- New Years break.
BC: Coquihalla & Fraser Valley
Hazardous winter conditions are expected. Heavy snow will continue throughout the highway passes and parts of southwestern B.C. this evening before tapering off to flurries near midnight. Additional snowfall accumulations of 10 to 15 cm can be expected for the Similkameen region. For Allison Pass and the Coquihalla Highway from Hope to Merritt, another 15 to 20 cm of snow is expected this evening. Full details
BC: Rogers Pass and east Columbia along TCH #1
Rogers Pass: Snowfall with total amounts of 20 to 25 cm is expected. East Columbia & Golden area: Snowfall with total amounts of 10 to 20 cm continues. A deepening low pressure system will track across the Kootenay region tonight. Snow associated with this system will continue tonight before tapering off to flurries early Tuesday morning. Additional snowfall accumulation of 10 cm is expected tonight. Full Details
AB: Calgary and TransCanada #1 east and west
Snowfall warning in effect for Calgary, with snowfall of 15 to 25 cm expected. To the west, in Banff National Park, Snowfall of 15 to 25 cm is expected. Heavy snow over southwestern Alberta will spread north and eastward through tonight. Snow will end by Tuesday evening. Full Details
AB: TCH #1 east of Calgary to Brooks & Medicine Hat
Hazardous winter conditions are expected. Periods of heavy snow will begin tonight, with total amounts of 10 to 20 cm by Tuesday evening. Poor visibility will also occur as strong northerly winds develop on Tuesday morning. Gusts to 80 km/h are expected to produce blowing snow until late Tuesday afternoon. Consider postponing non-essential travel until conditions improve. Full Details
SK: TCH #1 from Swift Current to Regina (and also the Yellowhead #16)
Winter storm to affect southern Saskatchewan starting Monday night. Storm total snowfall will be between 10-25 cm. A strong low pressure system will track along the international border Monday night bringing heavy snow to much of southern Saskatchewan. Snow will begin in the southwest Monday evening and spread eastward to the Manitoba border by Tuesday morning. A swath of 20-25 cm is expected through Tuesday evening, generally centred between the Trans-Canada and Yellowhead Highways.
Along with heavy snow, strong northerly winds of 50 km/h are expected to develop with this system, leading to a visibility reduction in blowing snow. The strong winds will first develop over western sections Tuesday morning and track eastward through the day.
MB: Trans-Canada #1 across Manitoba
Winter storm to affect southern Manitoba beginning Tuesday morning. Snowfall between 10-25 cm by Wednesday evening. A strong low pressure system will track along the international border Tuesday, bringing heavy snow, strong winds, and blowing snow to southern Manitoba.
Heavy snow is expected to begin in the southwest Tuesday morning and spread eastward throughout the day and continue into Wednesday morning. A swath of 20-25 cm is likely from Minnedosa eastward to Bissett. In addition to the snow, strong northerly winds, with gusts of 70-80 km/h, will develop with this system throughout Tuesday into the night. This will lead to visibility reductions in blowing snow lasting into Wednesday afternoon. Full Details
ON: TCH #17 from Kenora to Thunder Bay and east to Nipigon and Wawa
Significant snow expected Tuesday afternoon into Wednesday. Snow from a strong low pressure system moving eastward along the US border will spread across Northwestern Ontario Tuesday and continue Tuesday night into Wednesday.
Total snowfall amounts of 15 to 20 cm are expected across most areas. Locally higher amounts of 20 to 25 cm are also possible in a few localities. Snowfall amounts may be a little lower along the Minnesota Border. More details
QU: Montreal Area and St Lawrence Valley to Quebec City
Special weather Statement: Rain and mild weather as a gift this year!
For Christmas Eve, a strong southerly flow will undoubtedly allow Rudolph to travel at full speed! It will also bring mild temperatures, strong winds and rain over Western, Southern and Central Quebec. Having been rather well-behaved, localities north of the St Lawrence River could see significant rainfall amounts. Christmas Day may be slippery, as a gradual drop of temperatures below the freezing mark is expected. More details.
NS: along Trans-Canada and south to Halifax
Rainfall warning: Rain, heavy at times (25 to 50 mm) is expected, with higher local amounts possible around most of Nova Scotia. Tonight and persisting into Tuesday morning. More details
NL: Rainfall along most of the Island’s Trans-Canada #1
Rain, heavy at times (25 to 40 mm) is expected over much of the interior of Newfoundland. The frozen ground has a reduced ability to absorb this rainfall tonight until Tuesday afternoon.
Wreckhouse wind warning in effect for Channel-Port aux Basques area with Very strong wind gusts of southeasterly up to 130 km/h.
In the St John’s area and Avalon, strong winds ( southeasterly 100 to 120 km/h) may cause damage are expected in much of northeastern, eastern, and southern Newfoundland over Tuesday.