Toronto Is Under A Fog Advisory & It Could Reduce Visibility To Zero In Some Spots
Don't panic, you're not in a Stephen King book.

Downtown Toronto engulfed in fog.
Thanks to a dense fog drifting in overnight, Ontario drivers were forced to make their way through an unusually spooky morning commute on Wednesday.
According to The Weather Network, Tuesday's "sneaky" snowfall left an abundance of moisture lingering in the early hours of Wednesday morning, which collided with milder air, creating a "moist temperature inversion."
As a result, a dangerously dense fog was created, reducing visibility and making travel difficult.
"In this instance, we're talking about advection fog. Now, remember that thin blanket of snowfall we had yesterday, that provides some moisture and cooler conditions at the surface," Nadine Powell, TWN meteorologist, reports.
"Widespread fog is occurring. Areas of dense fog with near-zero visibility are likely," Environment Canada warns. "With temperatures near or just below the freezing mark, the fog may deposit ice on untreated surfaces. Some roads and sidewalks will become slippery as a result."
On the bright side, the horror-movie-like conditions disappeared mainly by late morning, and their arrival could be a sign for milder temperatures to come.
In fact, some parts of southern Ontario could hit nearly 20 degrees by Thursday. In addition, the arrival of warm air could bring daytime highs up to three times hotter than seasonal for this time of year.
What's even better is that northern communities such as North Bay and Barrie will reach up to 6 degrees and 15 degrees, respectively, which means residents could experience their warmest St. Patrick's Day in 10 years.
Not too shabby.