Today's feature is provided by Bufkit Warehouse proprietor, Chris Karstens. Another major winter storm may impact Iowa later this week. This time around, the type of precipitation is the main concern on forecaster's minds. The featured image is a 43 hour forecast of temperature and dew point (deg C) as a function of height (mb), showing an elevated warm layer (red X) of air (> 0 C) residing between two sub-freezing layers of air (blue x) (< 0 C) above Slater, IA Wednesday afternoon. The result of this atmospheric profile would be precipitation in the form of freezing rain or sleet.

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