A weather alert has been issued for parts of southern Ontario on Thursday morning.
Near-zero visibility in fog is expected, according to the alert from Environment and Climate Change Canada.
The yellow-level advisory is in effect for Mississauga, Brampton, Caledon, Halton Hills, Burlington, Oakville, Newmarket, Georgina and northern York Region.
Toronto was added to the fog alert at approximately 8 a.m.
Areas of dense fog will impact the area this morning, the alert states.
Travel will likely be hazardous in some locations. Visibility will likely be suddenly reduced at times.
Drivers should be prepared for areas of near-zero visibility and allow extra time to reach their destinations, Environment Canada said.
The fog is expected to dissipate in the morning.
The fog comes as the area also experiences unseasonably warm temperatures.
A high of 21 C is forecast for the Greater Toronto Area. There is a 60 per cent chance of showers late this afternoon.

A weather alert for dense fog was issued for the area shaded in yellow on Oct. 29. Map: Environment Canada
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