Friday's forecast is for freezing rain (only Saturday is looking decent)

Thursday may be the calm before the (freezing rain) storm.
Environment Canada has issued a special weather statement because a low-pressure system could bring freezing rain or drizzle starting early Friday morning near Georgian Bay, hitting eastern Ontario by early afternoon.
Highways, roads, walkways and parking lots – just in case they’re not slick enough after Wednesday’s thaw and freeze – “may become icy and slippery” but the risk of freezing rain should e