Originally Posted by jimbaker488
But I understand that as we get into September we can expect relief from high temps, but what about the stream water levels ? Do you expect them to be higher simply because there's less draw-down from irrigation in September, because that area won't be getting any significant precip until later on from winter snows, right ?
I seem to remember hearing or reading that irrigators like long, warm, dry summers as long as they can get water. If it stays warm and sunny late into the year they can get an extra cutting of hay in.
If conditions are right they can keep taking water longer than is typical for "normal" weather conditions.
Just from memory I don't think they typically start closing headgates until around mid September.
If it stays warm and sunny it could be more like the end of Sept.
If anyone has a more accurate understanding of irrigation practices feel free to dispute the above, it's just what I remember reading and hearing about.
Originally Posted by yonder
I'm with Jim here.........I am concerned with a 100 mile radius of West Yellowstone........I like to fish, but I will not risk the catch......just for the reward...........coming out sept. 7 to the 13........any input would be greatly appreciated........
The Yellowstone should be fine. As will be the upper Madison and the Henry's fork.
No matter what, the nights will be longer and colder by September.
Things are already cooling off and hopefully the worst of the high temps are behind us.
Creeks in the park may be low but they should be getting pretty cold at night by mid September. The Madison and the Gibbon may be fishing well by then.
The northeast corner will be low but should be plenty cool by then, could be great terrestrial fishing at that time.
I think there's a good chance the Big Hole will close this year. The cut off is 150cfs at Melrose for the Maidenrock stretch. It's running at 195cfs right now.
If we can just get some decent storms here and there it might not drop below the mark.
If it does close they usually stop irrigating earlier in the upper Big Hole valley since it's high and cold up there.
I seem to remember it being open again by late September when it closed in the worst of the drought years.