Thanks for that, super interesting about sieches. A standing wave not directly from the moon or waves.From the wiki:
Lake seiches can occur very quickly: on July 13, 1995, a large seiche on Lake Superior caused the water level to fall and then rise again by one metre (three feet) within fifteen minutes, leaving some boats hanging from the docks on their mooring lines when the water retreated
In Chicago I’ve observed and measured a consistent 0.8kn (1.48 km/hr) current set flowing north after a long week of consistent breezes out of the north. The water just piles up in the shallow end of the lake and when the breeze dies that water needs to go somewhere.
Lake Michigan has the least turnover of all the lakes and when thinking about predicting current on it it’s good to imagine a 300 mile long bathtub.
Lake seiches can occur very quickly: on July 13, 1995, a large seiche on Lake Superior caused the water level to fall and then rise again by one metre (three feet) within fifteen minutes, leaving some boats hanging from the docks on their mooring lines when the water retreated