The featured time series is from the Worthington, MN KELO WeatherNet site, which is in SW Minnesota. The long advertised cold front has been waffling around over NW Iowa for the past 2 days, but is slowing making progress SE this morning. On the plot, it appears it went through Worthington shortly after 4 AM and has dropped its temperature by 17 degrees thus far. This pattern will be common for most of the Iowa today with even colder air then working into the state later today.

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