As for timing, the Southern Tier will be the first to see the wintry mix of sleet, snow and freezing rain during the early morning.
After a break in the precipitation Sunday afternoon, the NWS predicts a second round of wintry weather will affect the region Sunday night into Monday with freezing rain, sleet and snow.
The precipitation is expected to turn back into snow by Tuesday night, as colder air settles over the city. The evening commute will be highly impacted. The wind chill is -28 in the morning and -19 in the afternoon.
The storm will start with snow at around 5 a.m., continuously with one to three inches of accumulation expected.
Snow will begin during the day Tuesday, as part of the Colorado low crossing Southern Ontario Tuesday and Wednesday.
After light snow Sunday, just a few flurries will be possible today.
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Temps are expected in the upper 20s, lower 30s overnight and into Tuesday morning.
Durham Region is going to get hit by another winter storm.
Meanwhile, Bruce and Grey counties are under a Winter Storm Watch. "I was born and raised here; we don't get these kinds of systems often".
-Winter Weather Advisory. from 6 a.m. Tuesday to 6 a.m. Wednesday for Bergen, Essex, Hudson, eastern Passaic, and Union counties.
The city's extreme cold weather alerts are issued when the temperature is forecast to reach -15 degrees C or colder, or when the wind chill is forecast to reach -20 or colder.