Significant snowfall and flood concerns are underway in Ontario as a potent Colorado low will bring a true tale of two seasons this week, with both significant snow and flooding rains targeting different parts of Ontario through Wednesday. There's even the chance for rumbles of thunder with some heightened instability across the south.
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Because of the amount of rainfall and warming temperatures expected in southern Ontario, there is a raised threat of localized flooding and ice jams as the low pushes through.