Heads up, drivers, a snowfall advisory has been issued for the Coquihalla Highway starting today.

Environment Canada is expecting up to 15 cm of new snow on the mountain pass between Hope and Merritt by midday Tuesday. The weather office says to expect heavy accumulating snow, poor visibility and slippery surfaces.

"A frontal system will move across southern B.C. today and tonight bringing rain and snow to the area. Precipitation will initially start as rain this afternoon as the snow level rises above the Coquihalla Summit," the warning says.

"Rain will change to snow near the summit this evening as the snow level falls to near the summit. Snow will become scattered flurries Tuesday morning and abate near noon. A total of 15 cm is forecast by noon on Tuesday."

The forecast is also calling for a 40% to 60% chance of rain throughout the Thompson-Okanagan today and tomorrow. Expect a high of 12 to 13 Celsius in the Okanagan today and 14 C in Kamloops. Tuesday also brings some likelihood of rain before sun and clouds and warmer temperatures reaching as high was 18 C in the Okanagan and 20 C in Kamloops for the rest of the week. 

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