On Saturday morning, one community in southeast South Dakota saw its temperature jump over 20 degrees within ten minutes.
A weakening rain shower over the Yankton area created a weather phenomenon known as a heat burst. A heat burst occurs when cool air from inside a decaying thunderstorm or rain shower heats up as it is pushed and compressed downward as outflow air to the surface. These atmospheric phenomena are rare and often occur at night.
The current record for a heat burst jumped temperatures to 104 degrees within a few minutes during June of 1960 in Texas. This incident was known as the "Satan's Storm" as outflow air created surface winds at almost 80mph. There are reports of the corn cooked on its stalks, outside leaves were all shriveled up, and one farmer reported 140 acres of his cotton were burned up.