Gravel Hill, ON

Near zero visibility in fog is expected or occurring.

Dense fog patches are occurring over portions of eastern and central Ontario this morning. The fog should dissipate later this morning.

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Visibility may be significantly and suddenly reduced to near zero. Travel is expected to be hazardous due to reduced visibility in some locations.

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