Weather
Upper Michigan Fog Advisory Oct. 22: Hazardous Driving Until 10 AM
Marquette, MI — Drivers across Michigan's Upper Peninsula are being warned about potentially hazardous travel conditions early Thursday, Oct. 22, as a widespread bank of dense fog expands across the e
By Sophie Caldwell · 2026-10-22T08:32:06.366Z
Marquette, MI — Drivers across Michigan's Upper Peninsula are being warned about potentially hazardous travel conditions early Thursday, Oct. 22, as a widespread bank of dense fog expands across the eastern half of the region and the Keweenaw Peninsula. Visibility could fall below one quarter mile in some locations, making morning travel particularly dangerous.
According to the National Weather Service in Marquette, a Dense Fog Advisory remains in effect until 10 a.m. EDT Thursday, with low visibility creating hazardous conditions for motorists traveling through affected communities.
Forecasters reported that dense fog was spreading across much of the eastern Upper Peninsula, while another area of fog was affecting the Keweenaw Peninsula in the western UP.
The advisory highlights the potential for visibility to deteriorate rapidly, leaving drivers with limited time to react to vehicles, intersections and roadway hazards.
Morning commuters traveling across the region should be prepared for sudden changes in visibility, especially where fog becomes particularly thick.
The National Weather Service recommends reducing speeds and driving only as fast as conditions safely allow.
Motorists should also use low beam headlights rather than high beams, which can reflect off fog and make visibility even worse.
Maintaining additional distance between vehicles is especially important because reduced visibility can make it difficult to recognize slowing or stopped traffic.
Drivers should avoid sudden braking and allow extra time to reach their destinations.
The fog is expected to remain a concern through the early morning hours before conditions gradually improve later Thursday morning.
However, motorists should continue exercising caution wherever visibility remains limited, even as the advisory approaches its scheduled expiration.