Near zero visibility in fog is expected or occurring.

Areas of dense fog will continue into this evening. Visibilities will improve somewhat as rain develops late this afternoon and into the evening. Patchy dense fog may redevelop in some locations tonight. Visibility may be significantly and suddenly reduced to near zero. If visibility is reduced while driving, slow down, watch for tail lights ahead and be prepared to stop.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to or tweet reports using #ONStorm.