Whitewater Forum: NF Sky Gauges

NF Sky Gauges

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Category: General
Forum Name: Whitewater Forum
Forum Discription: Open Discussion Forum. Whitewater related subjects only
URL: http://www.professorpaddle.com/forum/forum_posts.asp?TID=10945
Printed Date: 09 Jun 2025 at 4:22am

Topic: NF Sky Gauges

Posted By: arnobarno
Subject: NF Sky Gauges
Date Posted: 10 Jun 2011 at 5:45pm

So, I was trying to research a little more about the NF Sky and in looking at Snohomish County website, it looks like there are actually two gauges on the NF Sky - one in Index and one in Galena. http://www.co.snohomish.wa.us/PWApp/SWM/floodwarn/index.html - Click for link

Anyone know how to correlate stage height on either of these gauges with approximate flows?

Unfortunately, the county website isn't the best in terms of looking at historical information either. The data is there for the NF Sky @ Index through May but unavailable for the Galena gauge after October 2010. I suspect they update the history database with some frequency - just not sure when.

So, for example, unless Mike looked at this gauge last Saturday when the flow on the Sky @ Goldbar was 9500, and he reported that the flow was the "good side of low", it is unclear whether today's recorded stage @ Galena of 4.77 feet is higher or lower than the "good side of low"

Thoughts??

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arn9schaeffer@gmail.com (remove 9 for my real email address)

Replies:

Posted By: huckin harms
Date Posted: 10 Jun 2011 at 6:46pm

Interesting you mention that guage up nr Galena.... Darrin shared it with me a couple weeks back (inc. the SF guage downstream from TT- skykomish?) Anyways, I did note the NF Galena reading that day and it was 4.75, so that should help answer your question.

The cool temps and cloudy days means we will be seeing lower levels this weekend... i think.

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Posted By: arnobarno
Date Posted: 20 Jun 2011 at 6:04pm

So, it turns out you can access the NF Sky gauge at Galena through the NWRFC - http://www.nwrfc.noaa.gov/river/station/flowplot/flowplot.cgi?id=SNGW1 - click for link

Unlike the Snohomish County website, you can actually look at the historical data in text form for the recent past. This is clearly a better gauge to use than the Sky @ Goldbar gauge - we just have to establish some baselines to know what levels are good.

I know that Mike first run was on June 4th. Sadly, that data isn't available but Mike's memory was it was @ 4.75 - the good side of low. I know that Mike ran it again on the 11th, level was 4.96 feet (@ 11:30 AM)

I ran it with Mike and a bunch of other folks on the 12th @ 4.6 feet (@ 11:30 AM). It didn't feel "low" to me, but, it was my first time down so what do I know. More water would have been fun but it was certainly a fun level I'd do again without hesitation.

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arn9schaeffer@gmail.com (remove 9 for my real email address)

Posted By: huckin harms
Date Posted: 21 Jun 2011 at 8:19am

There was a group that did the Upper Nf on Sat. 18th, the guage reads 4.6 dropping below 4.5, so maybe somebody who reads this and was on that trip can comment on levels....

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