Water temperature fluctuation in same lake

[Texas_Rig]

Just curious if anyone has any knowkedge as to what causes big water temperature changes in the same lake. More specific is the same section of the lake. Yesterday i was fishing OH. It was miserable fishing conditions. We had cold, muddy, rapidly falling water. And the wind was blowing very hard to top it off. I was fishing the upper end around Spring Creek. The water temp everywhere was 50.5-51.5. Then I went into Bartons Creek where the water temp was 54.5-56 in the entire creek. I understand that a small isolated area can warm up because of the sun shining on rock or wood. But Bartons Creek is a pretty big creek and has pretty good depth. Things like sun or a natural spring just dont quite pass the smell test to me as to why that creek was warmer but I could be convinced otherwise. Thoughts?

[TNBronzeback]

My thought would be all the "warmer" rain running off the warmer ground into all the creeks is what causes those areas to read warmer temps.
Same concept in the spring when we all search for the warmest waters.....they are always the creeks and back water areas....the relatively warmer run-off warms up those areas where as the larger sections dont get those same effects.

[Texas_Rig]

I certainly understand that and maybe I should have said it in the other post, but I went into several creeks and that was the only one with water that temp

[TNBronzeback]

Hmmmmmmm....interesting. Unless there is something else going on, it may just be the terrain holding temps that lead to that particular creek. Thats a good one!

[luckystratos]

That is very interesting. I would have thought spring and Barton's would be the same. Did the fish know the difference??

[Texas_Rig]

It was the only place I caught any bass. I had a bite about 5 minutes after i got to the lake and never had another for about 4 hours until i went to the back of bartons where i could find some nice clean water. Everywhere else was a mud hole

[Lepomis]

The upper end is probably cooler because inflow from Cordell Hull and Center Hill tailwaters is probably cooler, and of more volume, than rainfall runoff into the warmer creek embayment.