Dense Fog, Winter Storm Warnings and Snow Continue Across Michigan as Multiple NWS Alerts Remain Active Overnight

MICHIGAN — It remains a weather-filled night across much of the state as of 10:50 p.m. EST on February 18, 2026, with dense fog advisories, winter storm warnings, and winter weather advisories all in effect.

Eastern lower Michigan and portions of central Michigan are currently under dense fog advisories, while heavier snow and mixed precipitation continue in northern parts of the state.

Dense Fog Advisories Cover Eastern Lower Michigan

All counties shaded in gray on the latest alert map are under dense fog advisories, including much of eastern lower Michigan and parts of central Michigan.

Officials say these advisories are set to expire at daybreak. Drivers across the advisory area should expect significantly reduced visibility, especially in areas where winds are light and fog can thicken rapidly.

Even counties without active alerts may still see patchy dense fog overnight, as calmer winds can allow fog to develop unexpectedly. The current alert coverage is shown in the latest NWS alert graphic .

Winter Storm Warnings in Upper Michigan

Across Upper Michigan, winter storm warnings remain in effect in pink-shaded counties. These areas are expected to receive the heaviest snowfall totals overnight.

Communities including Houghton, Marquette, Grand Marais, and surrounding regions could see accumulating snow that may create hazardous travel conditions into Thursday morning. Officials advise residents to monitor local updates as snowfall rates could fluctuate depending on bands of heavier precipitation.

Winter Weather Advisories and Mixed Precipitation

Purple-shaded counties across parts of Upper Michigan are under winter weather advisories, where up to two inches of snow or less is possible. In addition to snow, mixed precipitation continues overnight, adding to travel concerns in some regions. Slick roads and rapidly changing conditions are possible, especially in areas transitioning between rain and snow.

Thunderstorms Possible Across Southern Michigan

Forecasters also indicate that some thunderstorms may move into southern Michigan as the system evolves. While the primary winter impacts remain in the north, southern counties could experience periods of rain and isolated thunderstorms during the overnight hours. Residents are encouraged to stay weather-aware and check for updated forecasts throughout the day as the system continues moving across the region.

Travelers should use caution during early morning commutes, especially in areas under winter storm warnings or dense fog advisories. If you are experiencing fog, snow, or mixed precipitation in Michigan, share your conditions and travel updates with us at SaludaStandard-Sentinel.com. Community reports help others prepare and stay informed.