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A number of bus routes outside of London, Ont. are cancelled Tuesday morning as dense fog blankets the region.
The fog is widespread across much of southern Ontario, said Mark Schuster, operational meteorologist with Environment Canada. Visibility in some areas is less than 200 meters, and even down to zero in some spots.
“Right now we just have a very stagnant weather pattern across southern Ontario with very light winds,” said Schuster. “When there’s mild temperatures with patches of snow around, often it can lead to the formation of fog because there’s lots of low-level moisture.”
All school vehicles in Middlesex, Oxford, Elgin counties and the red zone – the area south of Highway 401 – are cancelled for the morning, according to mybigyellowbus.ca. Buses cancelled for fog will run in the afternoon.
The fog should lift later in the morning, said Schuster, several hours after sunrise. Things will be fairly quiet until the next weather system advances overnight, bringing up to 25 millimeters of rain and a risk of freezing rain on Wednesday.
“The main impacts are going to be slippery conditions in the London area, particularly for pedestrians and people driving on untreated roads,” Schuster said.
The next few day’s temperatures are close to the seasonal mark, he added, with highs reaching 5 C on Thursday, then dipping back down to -2 C by Monday.
