If travelling, be prepared for areas of near-zero visibility.
Areas of dense fog will continue this morning before slowly dissipating later this morning. Visibility will be reduced to near zero at times.
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Visibility may be significantly and suddenly reduced to near zero.
Fog advisories are issued when near zero visibilities in fog are expected or occurring.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or tweet reports using #ONStorm.