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Old 02-25-2014, 05:03 PM   #1
Ruckus
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Default Turbidity and Fishing: Pls educate me

I am watching the turbidity at Or City WR. At what point am I wasting my time due to turbidity? Is there a too low turbidity, what is too high, what is optimal. Thanks

http://or.water.usgs.gov/will_morris...n_tbdy_14.html

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Old 02-25-2014, 05:22 PM   #2
NF122
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Default Re: Turbidity and Fishing: Pls educate me

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Originally Posted by Ruckus View Post
I am watching the turbidity at Or City WM. At what point am I wasting my time due to turbidity? Is there a too low turbidity, what is too high, what is optimal. Thanks

http://or.water.usgs.gov/will_morris...n_tbdy_14.html

Anything over 10 is junk. 4 to 7 optimal or less.
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Old 02-25-2014, 05:31 PM   #3
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Default Re: Turbidity and Fishing: Pls educate me

You're never completely wasting your time, if you know what you're doing. But less than 15 is better.

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Old 02-27-2014, 02:27 AM   #4
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Default Re: Turbidity and Fishing: Pls educate me

Where can I find the turbidity of the Columbia around the Portland area?
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Old 02-27-2014, 04:21 AM   #5
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Default Re: Turbidity and Fishing: Pls educate me

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Where can I find the turbidity of the Columbia around the Portland area?
http://or.water.usgs.gov/will_morris...n_tbdy_14.html
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Old 02-27-2014, 04:38 AM   #6
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Default Re: Turbidity and Fishing: Pls educate me

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This is on the willamette.
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Old 02-27-2014, 07:16 AM   #7
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Default Re: Turbidity and Fishing: Pls educate me

If the Willamette River gauge at Morrison Bridge is 12 or so, I find the Columbia River to be good enough on the green side. I don't think we can fish above the I-5 until March 1st though.
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Old 02-27-2014, 10:51 AM   #8
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Default Re: Turbidity and Fishing: Pls educate me

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Where can I find the turbidity of the Columbia around the Portland area?
You can't. You can get turbidity at Bonneville, here, and at the Morrison bridge here. You can figure out what the rest of the river is going to look like by watching these numbers and the heights of the Lewis and the Cowlitz. The Columbia at St Helens and Kalama will fish nicely this weekend, based on my readings of these numbers currently, unless the Willamette spikes again.

I look at the outflow over Bonneville, which is about 130,000 cfs right now, and is quite clear. The willamette is at about 80,000 cfs. The willamette's turbidity is about 20, which is almost fishable itself. The blending of these waters will average out to a turbidity of about 8, which is just fine.

The Bonneville turbidity numbers use a different measure than the Willamette numbers, so they aren't directly comparable.

Hope that helps.
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