UPDATE: At 10:06pm, a post on the Common Ground Music Festival Facebook page says gates are reopened.

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Shortly after country superstar Tim McGraw was scheduled to take the stage, WILX-TV reported that Common Ground Music Festival was being evacuated due to weather.

McGraw took the stage at around 9:30pm.  At around 9:50pm, the report was published.

Radar shows developing storms across lower Michigan.

A Facebook post by Common Ground Music Festival indicates this is a temporary postponement and not a cancellation.