Calgary residents experienced a chilly and visually challenging start to their Tuesday as cold temperatures combined with dense fog enveloped the city on November 25, 2025.
Morning Conditions
The early hours of Tuesday presented significantly reduced visibility across many parts of Calgary, with fog patches creating potentially hazardous driving conditions for morning commuters. Temperatures hovered at notably cold levels for late November, requiring residents to bundle up appropriately before heading outdoors.
Weather Pattern Context
This weather event follows typical seasonal patterns for the region, though the combination of particularly dense fog with the cold temperatures created more dramatic conditions than usual. Environment Canada had previously indicated that such conditions were possible given the current atmospheric setup over southern Alberta.
The foggy conditions began developing overnight Monday into Tuesday as moisture accumulated near the surface under calm wind conditions. The cold temperatures, characteristic of late autumn in Calgary, resulted from clear skies overnight that allowed heat to escape into the atmosphere.
Safety Considerations
Drivers were advised to exercise additional caution during the morning commute, using low-beam headlights and maintaining greater following distances than usual. Pedestrians and cyclists also needed to take extra precautions, wearing reflective clothing and being highly visible to motorists navigating the reduced-visibility conditions.
The cold temperatures posed additional concerns for those spending extended time outdoors, with proper layering essential to prevent cold-related health issues. The combination of moisture from the fog and low temperatures created conditions where frost could form quickly on exposed surfaces.
