turnover??

fished nolin saturday night,had a decent night no real big one 30 or so fish with a few in the 16inch range.i noticed in a few places and when running my f-finder screen would be solid black,some places in 20ft in would be black down to 12-15ft then clear to the bottom then some places were normal.
since a couple weeks ago when i was there it 90 degree water this weekend was 81.6 to 83.2.is there a turnover starting?ithink so but was just wondering if i am wrong.i didn't get there til after dark so i couldn't tell what the water looked like.

I noticed the same at Rough. Some places below 20 was solid black and some places from surface to 15 ft were black with clear below. I didn't give it much thought, thought it was my DF messing arround.:confused:

i just noticed hardly no bites were coming from the places where it was happening,then when i found a good place and it was clear we got bites.2 of my best brush pile that have give up a couple 4's and a few other keepers a few weeks ago we never had abite and they were black.

[QUOTE=CTFSHWHISKER;303841]i just noticed hardly no bites were coming from the places where it was happening,then when i found a good place and it was clear we got bites.2 of my best brush pile that have give up a couple 4's and a few other keepers a few weeks ago we never had abite and they were black.[/QUOTE]
...I'm trying to learn some stuff about nolin...so far I have learned I should have picked another lake to learn about..can somebody give me some kind of direction down there..my heads starting to hurt thinking about it...any help would be greatly appreciated...steve

Sorry Steve, All i know about Nolin is how to get to moodydeer:D . But plan on fishing it more next year if I can pry away from Rough.