After a widespread snow system that caused numerous collisions across parts of southern Ontario Wednesday, snowbelt communities are now bracing for even heavier snowfall as lake-effect snow intensifies Thursday. Snow squall warnings are in effect.

Some of the harder-hit areas could receive 20-40+ CM of snow by Friday, depending on location and the duration of snow squalls.

RELATED: IN PHOTOS: SOUTHERN ONTARIO FACES MID-WEEK SNOWY BLAST

Travel will likely be challenging, if not hazardous. Roads and walkways will likely be difficult to navigate due to accumulating snow. Expect significant delays and possible road closures. Stay updated on any alerts as conditions change or deteriorate.

THURSDAY - FRIDAY: LAKE-EFFECT SNOW RAMPS UP ACROSS THE SNOWBELTS

Lake-effect snow will develop behind

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