SIOUX CITY, Iowa (KCAU) — A marginal risk of severe weather is in effect for portions of Siouxland for the last day of summer.

A severe thunderstorm warning is in effect for Osceola County in Iowa until 8:30 pm Sunday. This storm is moving ESE at 20 mph.

Hazards: 1.25" (half dollar size) hail and 60 mph wind gusts

A severe thunderstorm warning is in effect for Sioux County in Iowa until 8:15 pm Sunday. This storm is moving ESE at 15 mph.

Hazards: 1.5" (ping pong ball size) hail and 60 mph wind gusts

For the latest weather any time in Siouxland, visit the KCAU 9 weather page.

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