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Thunderstorm Wind in Union County, Iowa

Thunderstorm Wind September 19, 2024 · Union County, Iowa

60 mph

Estimated gust (52 kt)

$5K

Damage as recorded

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Delayed report. Two maple trees blown down. Damage to the top of an oak tree. Power lines damaged due to fallen trees.

The wider storm

Storms developed along a boundary draped across northern Iowa on the afternoon of September 19th with additional storms through the evening on a cold front that moved across the area later in the evening. With over 2000 J/kg of available MLCAPE, steep lapse rates, and modestly curved hodographs that supported rotating updrafts, hail was reported in several of the storms that developed. Storms later into the evening produced wind damage in parts of southern Iowa.

Began near Thayer (40.9200, -94.0700).

Source: NOAA Storm Events Database, event 1210865. Narratives are written by the National Weather Service forecast office that issued the report.

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