This plot shows temperature and dew point traces from Mount Pleasant (MPZ) and Ottumwa (OTM) Monday morning. The MPZ plot depicts an early morning scenario that is hard to believe. It is nearly impossible to have 100% humidity while the temperature warms 9 degrees in the early morning from solar insolation. If it was truely that humid in the lower boundary layer, the sun would have had a tough time mixing down the moisture quick enough to maintain saturation with an increasing air temperature. This is not physical and indicates bad data.

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