By matti on Monday, September 28, 2009 - 10:43 pm: Edit Post
John, I was reading the Duluth News Tribune this morning and there was an article that stated, ".....cold winds expected to gust from 40-60 mph combined with warm lake water could create waves that could build to 15-20 feet in some areas."
By dab102999 on Tuesday, September 29, 2009 - 05:51 am: Edit Post
Also to expand on that question (which I was wondering last night) I saw that the local shoar temp by me was 69 deg but it was 34 deg in the center of the lake. I would think that the high winds would be driving that towards us and causing pretty big undertow. Will that affect wave height also??
By admin on Tuesday, September 29, 2009 - 08:29 am: Edit Post
By dab102999 on Tuesday, September 29, 2009 - 09:30 am: Edit Post
If I am correct then what you described is what is meant by the lake is "turning over"
By admin on Tuesday, September 29, 2009 - 02:11 pm: Edit Post
Wind and the resultant wave action and upwelling is one way to "turn over" the water in a lake, but so is temperature difference. Water is most dense at around 39 degrees F and if you get a layer of water at the surface to be that temp, it will want to sink because of being more dense. This can cause the lake to "turn Over" in perfectly calm conditions.
By petro45fg on Wednesday, September 30, 2009 - 09:26 am: Edit Post
Another aspect of fall's cooler air temps vs. early summer's warmer air temps is the idea that the faster winds aloft (say 1500 ft or so) are actually able to make it down to the lake surface. Think instability of cold air above warm water. In the late spring/earl summer, think stability with warm air over cold water. I've heard tell of charter fishing captains heading out to Stannard Rock and seeing the anemometer spinning like crazy and the winds not reaching the surface. Just something to think about.
By matti on Thursday, October 01, 2009 - 01:31 am: Edit Post
By sunchyme on Thursday, October 01, 2009 - 12:11 pm: Edit Post
By favoritos on Monday, October 05, 2009 - 10:09 am: Edit Post
We just came back from Grand Marias. Wow.