ODWC, USACE, LMFRF

[mirvc17]

What’s with the high water temps? Anyone a lake stratification guru?

[jonbo]

I was asking that on another thread. No one's answered, yet.

[mirvc17]

Jonbo,

I knew someone asked about it, but i couldn't remember which thread. Anyway, this seems unusual? I don't recall ever hearing or reading about water temps this high coming from the dam. Didn't someone suggest a possibility that much of the cold water was lost in the floods?

[slim]

Could it be the lake is in the Fall turn over ?

[Fenwick]

Your questions asked and answered so do read this informative write up: lmfrfoundation.org/latest-news-and-updates/

No, no scientific talk about benthic tropospheres or hydragoraphobic thermalcline inversions or deoxygenated nucleic acid syndrome but enough info so that you know whats what with the trout situation there.

And hello! I'm now living in McLean Virginia within walking distance of the Tysons Orvis shop and of course I strolled over and met the manager for the trout lowdown around here. Now if only the moving company would show up with all my belongings I'd have my fly gear and be on the water.

Later!

- Fenwick

P.S. And yes, what Mr. Vanek said. Tyler already posted his educated thoughts on the reservoir water and temperatures and what not.

[fvanek]

Oct 17, 2017 17:18:00 GMT -6 mirvc17 said:

What’s with the high water temps? Anyone a lake stratification guru?

I think Tyler had mentioned the temperature not getting cold enough or staying cold long enough the past two winters, along with the floods caused the higher lake temps.

I remember seeing something close to that somewhere.

[captwoody]

Remember, with the lake 8 feet low, this means the spillway water is now coming from an area 8 feet closer to the surface. Probably not a dramatic effect but every degree of temperature change makes a difference.

[mirvc17]

Thanks Frank, I probably missed it or wasn't paying attention (probably that). Come on cold weather!

[golferjeff]

IN summary - less cold water due to floods and warm winters, warmer water being expelled into spillway due to being closer to surface, annual lake turnover, and warm air temps all contribute most likely. 70 at the spillway is not a good number..... we need 50's or at worst low 60's.

[jonbo]

"Cold Hole Narrowing?" thread

Here's a link to the thread where Tyler was discussing what happens with the lake water and the temps. As near as I can figure out he's saying that the temps are up as much as they are because not enough cold water has been coming in during the winter months.