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Dense Fog Advisory issued for SE Michigan Thursday -- what to know

Long-lasting fog, rain chances linger across Metro Detroit

Dense Fog Advisory issued for SE Michigan Thursday, Feb. 19, 2026 (WDIV)

A Dense Fog Advisory has been issued for Southeast Michigan on Thursday.

The dense fog drapes the area all morning on Feb. 19, and the advisory is set to expire at 12 p.m.

Latest forecast --> Long-lasting fog and rain chances linger across Metro Detroit

Why does this fog seem never-ending?

Inversion fog forms when a layer of cold air is trapped near the ground under a layer of warmer air (a temperature inversion). This typically is longer lasting as the upside-down atmospheric condition prevents air mixing, trapping moisture close to the surface, which can last for days. It doesn’t help when we have melting snow and rain showers which adds to the moisture content close to the surface.

Rain rolls in

Mild temperatures persist today as highs will reach the upper 40s. We have a couple rounds of rain on tap. We could see rain roll in by late morning and last through the afternoon. We will likely get a break this evening before another round arrives just before midnight.


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