⚠️ Dense Fog Advisory – North St. Louis; Northern Cook/Northern Lake; Central St. Louis; Southern Lake/North Shore; Carlton/South St. Louis; Douglas; Bayfield; Ashland; Iron – Tuesday, July 28, 2026

Dense Fog Advisory issued July 28 at 3:58AM CDT until July 28 at 10:00AM CDT by NWS Duluth MN

Details

* WHAT…Visibility one quarter to one half mile in dense fog.

* WHERE…In Minnesota, Carlton, St. Louis, North Cook and Lake
Counties. In Wisconsin, Ashland, Bayfield, Douglas, and Iron
Counties. This includes the Tribal Lands of the northwestern area
of the Lac du Flambeau Band, the Red Cliff Band, the Fond du Lac
Band, the Bad River Reservation and the Bois Forte Band, Lake
Vermilion and, Nett Lake areas. Other locations including the
Apostle Islands National Lakeshore, Voyageurs National Park and
Madeline Island. The entire Boundary Waters is also included.

* WHEN…Until 10 AM CDT this morning.

* IMPACTS…Low visibility could make driving conditions hazardous.

Instructions

If driving, slow down, use your low-beam headlights and fog lights,
and leave plenty of distance ahead of you.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.