ABOVE: A time-lapse video captured from atop the Suncor building in downtown Calgary shows fog moving through the city on Friday, August 29th.
CALGARY – A layer of fog descended on Calgary on Friday, creating a picturesque drive to work for hundreds of commuters.
Global Calgary Meteorologist Jordan Witzel says fog can develop under several different conditions.
Friday’s morning’s fog is known as radiative fog, and is usually short lived.
“Radiative fog tends to develop behind a cold front following a clear night in the late summer and fall,” explains Witzel. “The clear night allows for cooler air temperatures which clash with the relatively warm water bodies throughout the area – mainly our rivers.”
“Radiative fog is often the most picturesque and usually thinner.”
Witzel says Thursday’s rain may also have contributed some relatively warm water to the soil around the city.
“This warm water is easily evaporated into the chilly morning air and condenses to form fog.”
GALLERY: Stunning photos of a foggy morning in Calgary