IEM Daily Feature
Monday, 02 May 2022

3 AM Heat Burst

Posted: 02 May 2022 05:30 AM

An interesting weather weather phenomena called a "heat burst" happened early Saturday morning over central Iowa thanks to a rapidly decaying area of precipitation. The featured chart presents one minute interval data from the Ames Airport between 3 and 5 AM on Saturday. Heat bursts are the rapid rise in air temperature along with drop in dew point associated with the transport of warming and drying air to the surface from rapidly decaying thunderstorms. The plot shows about a ten degree rise in air temperature along with about a five degree drop in dew point. The second panel shows another interesting phenomena appearing in the wind direction data (green dots) with an decaying oscillation likely associated with a wake low.

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Tags:   heatburst