If you’re planning to travel between Milwaukee and Green Bay, especially during the early morning hours, you might want to think twice. A dense fog has settled across major parts of eastern Wisconsin, and it’s causing visibility to drop drastically—down to just a quarter-mile in some areas. This isn’t your average morning mist. It’s the kind of weather that makes it feel like you’re driving with your eyes closed.
Fog Creates Dangerous Driving Conditions Across Wisconsin
The National Weather Service has issued a fog advisory that remains in effect until Thursday morning, warning drivers of dangerously low visibility levels stretching from Milwaukee to Green Bay. This thick fog developed overnight as humid air met chilly ground temperatures, creating the perfect conditions for widespread visibility issues.
Fog is common during spring mornings, but this particular pattern is especially thick and long-lasting, prompting weather officials to urge caution for anyone heading out on the road.
Where Is the Fog Most Severe?
The fog has been reported along a wide stretch of eastern Wisconsin, especially on key routes like I-41, Highway 151, and I-43. Areas seeing the worst visibility include:
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Milwaukee
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Fond du Lac
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Oshkosh
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Appleton
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Green Bay
Drivers on these highways are experiencing visibility as low as 0.25 miles, making travel not only difficult but also potentially life-threatening if caution isn’t taken.
Why This Fog Is a Bigger Deal Than Usual
While fog isn’t new to Wisconsin, this one is different. According to weather experts, this fog is unusually dense, persistent, and widespread. It’s not expected to lift until mid to late Thursday morning, meaning people heading to work or school might be caught in it.
This could lead to delays, slow traffic, and a higher risk of accidents—especially in rural or less-lit areas where fog tends to hang around longer.
How to Stay Safe If You Must Drive
If staying home isn’t an option, here are some important safety tips to follow:
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Use low-beam headlights instead of high beams (they reduce glare and help you see better in fog).
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Slow down—even if you’re running late. Speeding in fog is dangerous.
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Keep extra space between your car and the one in front.
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Avoid sudden stops or lane changes.
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Watch for brake lights ahead and follow pavement markings to stay in your lane.
Fog accidents often happen because people underestimate how little they can see. A few extra minutes of caution can save lives.
When Will It Go Away?
The fog is expected to gradually dissipate by Thursday mid-morning as the sun rises and begins to warm the moist air near the ground. Until then, the thick blanket will continue to hang across much of eastern Wisconsin.
Forecasters recommend checking live traffic updates and using weather apps before leaving home.
Bottom Line: Be Smart, Stay Safe
Don’t take this fog lightly. If you absolutely must travel, plan ahead and take extra precautions. Sometimes the most dangerous part of your day is the drive you do every morning without thinking. Today, that drive could be a lot riskier than usual.
