* WHAT...Dangerous swimming conditions due to 3-7 ft waves and rip currents.
* WHERE...Emmet, Alpena, Benzie, Manistee, Western Mackinac and Eastern Mackinac Counties, and Beaver Island and surrounding islands.
* WHEN...From 8 AM EDT this morning through Tuesday morning.
* IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers.