Heavy Rain in the Southeast; Wintry Mix from the Plains through the Ohio Valley

A storm system will bring a number impacts to the central and eastern US. Heavy rain and thunderstorms are expected in the Gulf Coast and Deep South. Further north, a wintry mix may produce a glaze of ice from the Ozarks/Mid-South east through the Ohio Valley. Accumulating snow is expected from the central Plains east into the Upper Ohio Valley/Lower Great Lakes. Read More >

According to the American Meteorological Society Glossary of Meteorology, a heat burst is a "localized, sudden increase in surface temperature associated with a thunderstorm, shower, or mesoscale convective system, often accompanied by extreme drying."

Indeed, several Mesonet weather stations just northwest of Mobridge, SD (including the Mahto SDSU and McLaughlin+Trail City RWIS stations) recorded sudden increases in temperature and decreases in humidity, along with spikes in wind gusts from 10 pm Friday to 1 am Saturday morning. Notably, the Mahto station rose ~15 degrees in 20 minutes peaking at 96 degrees at 11 pm, and gusted to 62 mph just before at 10:55 pm. Showers falling into the right environment led to this fairly rare phenomenon. See the slides below for more details.

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Heavy Rain in the Southeast; Wintry Mix from the Plains through the Ohio Valley

Heat Burst Observed Friday Night