Windsurfing & Stand-Up Paddleboarding in Michigan
Harry is a Jedi Master and doesn't need no stinkin' website. He can use the Force. So, not sure what he told you, but you can use WindAlert or NOAA.gov (type in Mount Clemens). Hopefully, Tom Janicki will chime in here, but he's in Hatteras at the moment along with Harry.
Here's a few that I frequently use, though not specifically for your area: