Hamilton is under a snow squall warning, as a blast of winter is hitting the city Monday.

Messy weather that started in Burlington and Oakville this morning is sinking south into the Hamilton area and is expected to continue into the afternoon.

It may then shift south of Hamilton into the northern Niagara region later today.

Expect 5 to 10 cm of snow in the city with local blowing snow, and the possibility of up to 15 cm in outlying areas.

"Driving conditions are expected to be hazardous today," Environment Canada said in a weather alert. "Prepare for quickly changing and deteriorating travel conditions. There may be a significant impact on rush hour traffic in urban areas."

Hamilton police warned motorists to watch for shoddy driving conditions as well:

The Hamilton to union route 16 GO bus is experiencing delays around 40 minutes this morning. Hamilton police are reporting several accidents within the city this morning.

Environment Canada issues snow squall warnings when bands of snow form that produce intense accumulating snow or near zero visibilities.

Monday's high is - 6 C.