North Niagara expected to get 10 to 20 cm of snow, while south Niagara is expected to get 30 to 50 cm before the storm ends tomorrow night.
All of Niagara is now under a snow squall watch.
The weather office says the squalls will start in southern Niagara overnight, before heading north tomorrow.
North Niagara can expect 10 to 20 cm starting in the afternoon, but south Niagara could 30 to 50 cm before the storm ends tomorrow night.
Meanwhile, a lake effect snow warning remains in effect for parts of Western New York, including Buffalo.
Up to four feet of snow is expected by early Sunday afternoon.
Governor Kathy Hochul has declared a state of emergency in several counties.

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