The IEM Daily Feature a few days ago noted that large air temperature gradient that existed over Iowa this October. Today's featured image denotes that the same gradient exists within the top four inches of soil. The map presents a model analysis of four inch depth soil temperatures along with observations from our ISU Soil Moisture Network. Soil temperatures are generally quite warm over most of Iowa, but this looks to change with the arrival of much colder air temperatures and more seasonable weather upcoming.

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