Center Pin on the Yough

thats a real nice day other than the yinzers...how far up the yough were ya...all the way by confluence??`

Waters awfully warm in the yough right now. Light tippets equal dead fish.

Bill, get a thermometer.

http://waterdata.usgs.gov/pa/nwis/uv?site_no=03081000

temps are fish-able through until the water warms during the day, if my calculations are right water temps for yesterday ranged from right around 64 degrees F to just over 70 degrees F...anything above 70 would be sketchy for the safety of the fish

the discharge at the yough dam is cold water very cold water

ORIGINAL: flyway

The water at the tailraces is cold until the lake runs out of frsh water. That time is now. The outflow has been flowing around 70 degrees for some time now. Tailwater fish acclimated to cold releases dont tolerate 70 degree water very well.  If your fishing to keep and eat them then knock yourself out and go get them. If you're opinionated about bait fisherman and non-catch and release types then leave it alone for a while and fish downriver where temps are better.

sorry i disagree...the water at the discharge is still much colder...55-60 no way 70...and how would temps downriver be colder...the sun starts beating on it and it warms as it flows downstream...the dam is DEEP at the suction for discharge...even now i bet its over 50' deep there...soo how would it be 70 deg.? i almost wanna drive up there and stick a thremometer in the water

ORIGINAL: flyway

The water at the tailraces is cold until the lake runs out of frsh water. That time is now. The outflow has been flowing around 70 degrees for some time now. Tailwater fish acclimated to cold releases dont tolerate 70 degree water very well.  If your fishing to keep and eat them then knock yourself out and go get them. If you're opinionated about bait fisherman and non-catch and release types then leave it alone for a while and fish downriver where temps are better.

Flyway you are totally wrong with this information.

The further from the dam, the warmer the water is.  There really are no significant tributaries that cool it down that much below, although there are some, but I assure you the fish from the dam to the bridge are nowhere near stressed out.


Nuclearsteels story is also not BS in my opinion, it is actually quite believable. 

There really are no significant tributaries that cool it down that much below,

True statement...The casselman and LH are running a lot warmer than the yough, you can feel a huge difference when wading near the mouths

Forgot you guys are the pro's, and I'm sure you spend more time on the river than I do. First off the water is warm coming out of the lake,we have determined this via usgs website data. Secondly,due to the low flow of casselman and LH at night these tribs are cooling down nicely and allowing the Yough to cool down also. As the month progresses ambient air temps will allow the yough to cool as it flows northward below the casselman and LH. Lake temps will not cool down as quickly and as I have stated the warmest water on the yough will be immediately below the dam. As far as the fish commission not using sound scientific data to make stocking decisions...........

ORIGINAL: flyway

Forgot you guys are the pro's, and I'm sure you spend more time on the river than I do. First off the water is warm coming out of the lake,we have determined this via usgs website data. Secondly,due to the low flow of casselman and LH at night these tribs are cooling down nicely and allowing the Yough to cool down also. As the month progresses ambient air temps will allow the yough to cool as it flows northward below the casselman and LH. Lake temps will not cool down as quickly and as I have stated the warmest water on the yough will be immediately below the dam. As far as the fish commission not using sound scientific data to make stocking decisions...........

First off "the low flow" of these streams would produce minimal influence on the water temps in comparison to the water from the lake via the dam.  The casselman was warming a very small flow of the yough along the bank about 5 to 10 yards out.  Second, we are not talking about surface temps of the lake which are the ones that are mostly effected by the weather, we are talking about 120ft of water here dude, come on.  Sry man clearly you're the pro here and know when stocking times should be.

Even though flyway is a terrible duck hunter in real life, I think he raises a halfway valid point.  Bear with me while I try to explain.

Its really not rocket science.

More like amateur meteorology.



do a 120 day on the water coming out of the dam...in the tunnel, nonetheless. 

http://waterdata.usgs.gov/pa/nwis/uv?cb_00010=on&format=gif_default&period=120&site_no=03077100

is it the same temp year around?  Show anything interesting?

Still think it is 55 degrees in September?

not to be a d bag...but....
I majored in meteorology for a couple of years before I realized I had no chance of getting a real job with out a doctorate.  There is a lag in the seasons.  It isn't the hottest part of the year in June is it?  Even though we have 20 hours of daylight. it takes a while to heat up the planet.  So the hottest part of the year is in august, a full couple of months after the longest day.  The reason is that the majority of the planet is water, and it takes a lot longer to heat up/cool down the water.

It has been a hot, dry summer.  Anybody see the water in friendsville or sang run?  Not a lot of flow.  Not nearly enough to replace the water that is released for the OP wanna be mountain hippies every weekend.  Just look at the lake, drawn down 30 feet.  That is a lot of water you are screwing with.  Combine that with 20 days in the 90's, and lots more in the upper reaches of the 80s, and you get a warm lake.  Sure it is cooler on the bottom, but it is starting to effect the water temps.  And probably will into the next month or so. 

the evenings in the mountains get pretty cold.  That means those creeks with very little water in them get cold faster, because of the lack of water to hold the temp pretty even.  The lake, being a big body of water, takes much longer to change. 

I would say this isnt a big issue yet, but it might become a situation in the next few weeks, if we dont get any rain. 

I think that is the point flynuts is trying to prove.  might not be the best time of year to fish the yough.  that is all.



on a side not, F the yough in confluence.  It will never be a great fishery, as long as the screw with the water every weekend.  imho it sucks, just like flyway does at bowhunting.  Not a bad biologist though.

ORIGINAL: flyway

Bill, get a thermometer.

Flyway is right to some extent. I would take a thermometer. The lake is out of coldwater right now.  The reason why it may be colder downstream also has to do with the mixing that has to occur.  Thats why fishing the north side of the river is better for smallies and the south side is better for trout. The stocking occurs because the fish commission is trying to get rid of fish and there are a large number of meat fishermen who quickly remove the fish so there isn't a concern about trout mortality due to playing a fish too long. TU recently stocked a bunch of fish in the trophy section below ramcat via float stocking.

ORIGINAL: D-nymph

ORIGINAL: bassboatbill

ORIGINAL: flyway

The water at the tailraces is cold until the lake runs out of frsh water. That time is now. The outflow has been flowing around 70 degrees for some time now. Tailwater fish acclimated to cold releases dont tolerate 70 degree water very well.  If your fishing to keep and eat them then knock yourself out and go get them. If you're opinionated about bait fisherman and non-catch and release types then leave it alone for a while and fish downriver where temps are better.

sorry i disagree...the water at the discharge is still much colder...55-60 no way 70...and how would temps downriver be colder...the sun starts beating on it and it warms as it flows downstream...the dam is DEEP at the suction for discharge...even now i bet its over 50' deep there...soo how would it be 70 deg.? i almost wanna drive up there and stick a thremometer in the water

You don't need a thermometer.

USGS site says 19 degrees Celsius at the dam outlet tunnel that's 66.8 degrees fahrenheit.
http://waterdata.usgs.gov/pa/nwis/uv/?site_no=03077100&PARAmeter_cd=00065,00060,00010


down river a tad, nearer the mouth of the Casselman, 21.5 degrees celsius, that's 69 degrees F.

http://waterdata.usgs.gov/pa/nwis/uv/?site_no=03077500&PARAmeter_cd=00065,00060,00010

The outlet tunnel is still water with little/no flow. The tunnel temp should not be confused with the submerged temp. That is why the water is much warmer there by the tunnel 'puddle'. It is generally only opened up in the winter sometimes after extreme runoff filling the lake or in the spring (and quite a site to see sometimes) The water coming out of the submerged discharge is definitely cold/colder than 70.
There wouldn't be pens of trout there all year round raising fish if they would be in any danger due to temperature.

NOW GO FISH!!!!

CONGRATS ON YOUR BANNER DAY NUCLEARSTEEL!!!!

ok when is everyone going to take their PETA shirts off and just fish?

ORIGINAL: kyler16

ok when is everyone going to take their PETA shirts off and just fish?

Can you silk screen me one up?