Tuesday, July 10, 2012

Water temperatures

If you look at the USGS streamflows for Montana, you might be a bit alarmed at the temperatures. It's been a hot topic at the brewery lately, but then I recalled that this has happened before. On July 21, 2010 (a good water year), I blogged about the same thing, only to fish through to fall with no real heat concerns...
Then this morning, the sun glowed red. Not sure what it is about wildfire smoke that causes this phenomenon, but it's eerie and ominous. The rays are barely choked, but it's there. We're seeing temps as high as 75 in some rivers, which, especially for early July, is not good.
So while I don't want to be the alarmist I was last year, we are seeing more significant signs of hoot-owl closures on the horizon. For now, be aware, and try to avoid water that is too hot.

This is from Sept. 2007. The Gallatin River beneath a red sky, at a seriously malnourished level.

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