SIOUX CITY (KTIV) - As warmer air moved into the region on Monday, areas of dense fog formed in northwest Iowa and a Dense Fog Advisory is in effect for a good portion of northwest Iowa until 10 pm Monday.

Monday Night’s Forecast

Areas of dense fog will be most prevalent Monday evening into early Monday night, although areas of lighter fog could continue throughout the overnight hours. Skies will stay mostly cloudy with lows in the low to mid 20s with a light westerly breeze.

Tuesday’s Forecast

A system that will bring heavy snow to parts of the Dakotas and Minnesota will keep Siouxland’s skies mostly cloudy through the day Tuesday and could even bring a few light rain showers to the region as highs go above average into the low to mid 40s for many of us. A southwest will keep getting

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