Guests - If You want access to member only forums on FM. You will gain access only when you Sign-in or Sign-Up on Fishing Minnesota.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
GoggleEye

Fall Turnover??

10 posts in this topic

Can anyone tell me if Mille Lacs experiences a fall turnover?? I know some lakes don't experience one for some reason....whatever that may be. I don't know much about that. But if it does have one, what time of year does it usually fall around? Thanks for any info. and help.

GoggleEye

Share this post


Link to post
Share on other sites

Mille Lacs has a turn over. No one can predict this time of year when it is going to occur.

During the summer months the lake surface temps are warmer than the bottom of the lake temps. The turn over occurs when the cool air of late fall/winter turns the waters surface temp colder than the temp at the bottom. Once this occurs the ice sheeting is soon to come. In a sense, the lake flips up side down. Its all derived upon temperature. This effects all aspects of a lake. The Thermo cline (hope I said correct word) level determines what a lake is going to do. Some lakes do not turn over, these are the lakes the have very thin ice during even the coldest winters or ice all year round (like in the actic).

This is what I have learned about the lake turning over! Could be wrong, but it fits the discription.

Share this post


Link to post
Share on other sites

Excellent, but when does turnover occur?

October, November, ????????????

Share this post


Link to post
Share on other sites

Actually, Mille Lacs is a polymyctic lake, in that it turns over, or mixes, many times throughout the year. Because it's a shallow, wind-swept lake, Mille Lacs doesn't usually have a chance to develop a strong temperature stratification like other lakes. Because of the weak stratification, a windy day will in a sense "turn over" or mix the temperature layers.

Some years you may notice a turnover effect in the fall and other years you really won't. As to when it happens in the fall if it happens at all.... confused.gif Turnover can be predicted but not this far out in advance. A turnover due to cooling surface temperatures will occur when the top layer of water denser than the water below and water is most dense at 4 degrees Celsius (39.2 F) so I would look for the effects of a turnover, if they happen at all, when the surface temps start getting into the lower 40s. Sorry, it's tough to pinpoint a specific time as I've fished open water on Mille Lacs in December and ice fished in November.

Share this post


Link to post
Share on other sites

All good info. guys. Thanks for chiming in. I would imagine fall turnover to happen on Mille Lacs around the late october time period then, if it has a pronounced one that is???? From the description you gave me, I usually see my water temp. readings hovering around that low 40's mark in Later October. I am heading up in late September once and possibly once after fall turnover in November (that is if there isn't ice blocking the landings). Of all the areas to fish in Mille Lacs, what would be your first choice for fall fishing.....rocks, sand and gravel, or mudflats?? I have done well in the rocky areas of the southeast portion, but I do like exploring new territory. Any thoughts?

Share this post


Link to post
Share on other sites

The turn over occurs most times in late Oct. to early Nov., but could easily occur in late Nov. to early Dec... Let’s hope we do not see late Dec.

The tullibie spawn is usually at the start of or during the turn over. If you shine your spot lights up on a shallow rock reef and see tullibie swarming, the turn over is close or has started.

Share this post


Link to post
Share on other sites

There is no turnover on Mille Lacs.

Too shallow and windswept.

Share this post


Link to post
Share on other sites

Willy,

I am talking in a weather/environmental sense, not a thermocline flip. The fact of Mille Lacs having a very low thermocline level and like you stated shallow and wind swept says the lake will not have a thermocline flip over(rare). Like I said in my first post, what I have come to learn as the Mille Laces turn over is basically a change in surface to bottom temps, not a thermocline rearrangement.

Share this post


Link to post
Share on other sites

Like it was said before me, there is hardly ever a turnover on a Mille Lacs type lake. These lakes do not stratify during the summer thus no big temperature difference from top to bottom. It does even out however at 39 degrees so it will never be in December.

Share this post


Link to post
Share on other sites

Quote:

Willy,

I am talking in a weather/environmental sense, not a thermocline flip. The fact of Mille Lacs having a very low thermocline level and like you stated shallow and wind swept says the lake will not have a thermocline flip over(rare). Like I said in my first post, what I have come to learn as the Mille Laces turn over is basically a change in surface to bottom temps, not a thermocline rearrangement.


Well Mille Lacs doesn't Turnover... We shouldn't call what it does "Turnover" It's more like Mixing...

And as far as I know, this enigmatic "Hot Bite of Fall" isn't something that even predictable for that big lake.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • vanwalleye
      Nice thats what I like to hear, was doing an annual trip to LOW with my buddies, but to be quite honest biggest fish I ever saw in 10 plus trips was 27 inches, I caught 3 bigger than that on the pond last year, and hey I can stay in Wright county where I live and catch 10 inch walleyes.. I don't make it up to that end of the lake ever, usually fish the south end..Bought a wheel house this year, would loke to set it up as base camp and hopefully be able to head up toward that end and do some exploring..And thanks for the input, thinking there is a lot of readers and not many writers on this site nowadays...
    • eyeguy 54
      yepper
    • icepike 1
      Lake Marion is completely iced over. Hopefully we won't get much snow and be fishing soon.
    • popriveter
      Silver lake in New Brighton is iced over. I'm going to count one week before checking thickness on my early ice spots. Could be fishing next Friday if all goes well.  
    • fishingstar
      Hey eyes one thing nice is you have reveres to help clean out your holes