Dense Fog Advisory Issued for Northeast Wisconsin

Visibility expected to drop below a quarter-mile near Lake Michigan.

Apr. 15, 2026 at 8:03pm

A sweeping, atmospheric landscape painting in muted tones, with a heavy fog obscuring the horizon and dwarfing any visible structures, conveying the overwhelming scale and power of the natural world.A dense fog envelops the landscape, highlighting the power and unpredictability of nature.Green Bay Today

The National Weather Service has issued a Dense Fog Advisory for northeast Wisconsin, including the Green Bay area, from 11 p.m. tonight until 10 a.m. tomorrow morning. Visibility is forecast to be reduced to less than a quarter-mile, especially near Lake Michigan, prompting warnings for drivers to slow down, use low-beam headlights, and increase following distance.

Why it matters

Dense fog can significantly impair visibility and create hazardous driving conditions, increasing the risk of accidents. This advisory is important for residents and travelers in the affected region to be aware of the weather conditions and take appropriate safety precautions.

The details

The National Weather Service in Green Bay issued the Dense Fog Advisory, which will be in effect from 11 p.m. tonight, Wednesday, April 15, 2026, until 10 a.m. tomorrow morning, Thursday, April 16, 2026. The advisory covers portions of northeast Wisconsin, particularly areas near Lake Michigan, where visibility is expected to drop below a quarter-mile.

  • The Dense Fog Advisory will be in effect from 11 p.m. tonight, Wednesday, April 15, 2026, until 10 a.m. tomorrow morning, Thursday, April 16, 2026.

The players

National Weather Service

The National Weather Service is a government agency that provides weather forecasts, warnings, and other meteorological information for the United States.

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What’s next

Drivers in the affected areas should exercise caution, slow down, use low-beam headlights, and increase following distance to ensure safe travel during the dense fog conditions.

The takeaway

This Dense Fog Advisory highlights the importance of being aware of changing weather conditions and taking appropriate safety measures, especially for drivers, to prevent accidents and ensure the well-being of the community.