Holy Water Levels, Again. - Page 3 - SailNet Community
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post #21 of 39 Old 05-17-2019
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Re: Holy Water Levels, Again.

That profile map is very cool!!

I have read this starts way back in Michigan, but I still don’t follow all the engineering. It’s been implied that the IJC could theoretically take the lake down even further, during the winter, than they have already. I’m not sure I understand the reasons for not doing so. Perhaps aesthetics, perhaps waterfront usage, perhaps the hydro electric consistency. I smell an agenda in most of what I’ve read.

What does make sense, is when the winter draw down doesn’t prove sufficient, it’s too late. Way too late in ‘17, but okay in ‘18. They can’t know for sure.

It seems we’ve messed with nature, via dams and watershed removal, and built too close to the flood planes. Not sure we’re going to collectively hold back the inevitable for much longer.


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post #22 of 39 Old 05-18-2019
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Re: Holy Water Levels, Again.

To raise the water level of just Lake Michigan it takes 400 Billion gallons of water, now multiply that by 23, as it is 23" above the year around datum norm, and that is a lot of water.

Now take into account the rest of the Great Lakes and all together it would take 1,692,000,000,000,000 gallons of water to raise all of the Great Lakes by 1" alone!!


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post #23 of 39 Old 05-19-2019
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Re: Holy Water Levels, Again.

Quote:
Originally Posted by PatMc57 View Post
Agree even WAY over here on the Chesapeake. Here's a pic of my Dufour 31 nearly popping over the pier. I have another pic that was within a few inches.
Sorry not seeing that on the Chesapeake and we are only 30 miles north of you. We’ve had a lot of April/ May rain fall as well as the normal full moon cycles and easterly breezes which contribute to high water, but no CONSISTANT longer term rise in water levels at the dock.


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post #24 of 39 Old 05-19-2019
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Re: Holy Water Levels, Again.

A lot of high water on the Chesapeake this month. >1 foot above normal for much of May:

https://tidesandcurrents.noaa.gov/wa...rval=6&action=

Before I found this thread this morning, I was wondering how long this trend has to continue befor NOAA considers resetting the datum.

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post #25 of 39 Old 05-19-2019
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Re: Holy Water Levels, Again.

snowmelt happens and is transient change.
does noaa need to record transient change as real permachange???
wait until snow is done melting. they are continuing to see snow in upstate ny, so it could take a while. they have been asking when does gw start....... and hoping apple trees have ability to keep blooms just now popping out.


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post #26 of 39 Old 05-19-2019
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Re: Holy Water Levels, Again.

Quote:
Originally Posted by TakeFive View Post
A lot of high water on the Chesapeake this month. >1 foot above normal for much of May:

https://tidesandcurrents.noaa.gov/wa...rval=6&action=

Before I found this thread this morning, I was wondering how long this trend has to continue befor NOAA considers resetting the datum.

I would think a month in the big scale of things could be an aberration

Very rainy May. Last year was the rainiest year for many years. Whether that means a permanent change in the norm. To small a survey or too short a sample especially when weather is measured in thousands of year patters ( or millions)

A foot change on the Chessie has some alarmed . Where we are now a foot change they wouldn’t even flinch with normal 5 -8 foot changes. Peolple who build on the Chessie build way to close to the water. A one foot change permanently would affect many


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post #27 of 39 Old 05-20-2019 Thread Starter
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Re: Holy Water Levels, Again.

Here is an article on the Thousand Islands area. It says that levels may or may not exceed 2017. One figure that stood out to me is that levels are currently 73 cm above averagel, so that's about 29 inches.

https://www.cbc.ca/news/canada/ottaw...ding-1.5142304

I spent most of the summer last year cruising the Thousand Islands, much of the dock infrastructure was still not repaired and was out of service still from the damage in 2017. I am thinking it's going to be another tough year in this classic great lakes cruising ground.

And the total vessel ban is still in place on the Ottawa River for 400 km.

I wonder if this is going to have lasting effects on regional boat ownership and sailing participation? Cost of boat ownership is a tough pill to swallow when you can't even get out on the water.

On a brighter note I have been out on the Rideau every day this week end and people with boats on trailers/roof racks seem to be heading there as an alternative. It's not really a viable alternative for keel boats though, too many low bridges.
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post #28 of 39 Old 05-20-2019
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Re: Holy Water Levels, Again.

I wonder if it’s technically possible to take the lakes down even further over the winter, to allow for increasing spring runoff. If even possible, I suspect that would impact access to shore facilities and possibly the hydro infrastructure, during winter months. These may be easier to modify than moving Montreal.


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post #29 of 39 Old 05-20-2019
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Re: Holy Water Levels, Again.

Effects are being felt far upstream of Montreal. Windsor is closing their municipal marina for the entire season due to the water levels:

Lakeview Park Marina Docks Closed for Season
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post #30 of 39 Old 05-20-2019 Thread Starter
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Re: Holy Water Levels, Again.

^^^ that's pretty crazy. The entire season gone. Imagine you kept your boat there? Paying insurance, maintenance, or even loans with monthly payments? It's not like there is really that much overflow capacity at great lakes marinas for alternative slip options.
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