The U.S. Coast Guard will be pulling the mid-lake weather buoys from northern Lake Michigan (45002) and southern Lake Michigan (45007) over the next week. Here is an updated schedule for the USCG Mackinaw to retrieve the weather buoys:
Northern Lake Michigan - 45002 November 27th
Southern Lake Michigan - 45007 December 2nd
The buoys are brought in for any needed maintenance and stored for the winter season. The buoys are usually re-deployed sometime in March...depending on weather and ice conditions on the lake.
Image of the southern Lake Michigan Buoy-45007
The northern buoy is located at the mid-point of the lake between Washington Island and North Manitou Island.
The southern buoy is located around the mid-point of the lake about 43 nautical miles east-southeast of Milwaukee.