UPDATE: The fog advisory has ended in Niagara.
But Environment Canada says we could still see some fog patches close to Lake Erie and Lake Ontario tonight.
A fog advisory is in effect for Niagara.
Environment Canada is reporting dense fog in some areas, making it hard to see for drivers out there.
Make sure you watch out for tail lights and be prepared to stop.
The fog should lift later today.
The roads could also be slippery, so make sure you drive accordingly.

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