Tide table for Pitt Lake - ClubTread Community

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post #1 of (permalink) Old 07-22-2010, 03:30 PM Thread Starter
Headed for the Mountains
 
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Default Tide table for Pitt Lake

I'm wandering if anybody can help me to calculate a tide time for Pitt Lake based on other know points? Or some one might know where to get this tide table for Pitt Lake.
Any help appreciated!
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post #2 of (permalink) Old 07-22-2010, 03:52 PM
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I'm not an expert, however I think 1-2 hours after point Atkinson for highs and 3-4 hours after point Atkinson for low tides. I read something on westcoastpaddler.com about it.
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post #3 of (permalink) Old 07-22-2010, 04:25 PM
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There is an excellent free program called J-Tides.
http://www.arachnoid.com/JTides/
It has the New Westminster station - probably the best bet for Pitt Lake calculations. You would probably have to add 45 min. to an hour for Pitt Lake, as that is how far New West is behind Canoe Pass at the mouth of the Fraser - Pitt Lake is about the same distance again upstream from New West.
I have also heard that it is about three to four hours behind Pt. Atkinson.
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post #4 of (permalink) Old 07-22-2010, 06:33 PM
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This spring, the water taxi chap told me it's +6 hrs from Point Atkinson.

I couldn't tell you if/how the heights translate.
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post #5 of (permalink) Old 07-22-2010, 09:28 PM Thread Starter
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Thank you very much!
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post #6 of (permalink) Old 07-22-2010, 09:52 PM
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The heights don't really seem to change all that much imho. I think it makes the most difference near the Polder when you are paddling, there's an in/out current.
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post #7 of (permalink) Old 07-22-2010, 10:02 PM
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There's about a two foot tide level change on Pitt Lake -- be sure to pull your boat up the beach if the tide is low.

From the New Westminster tide station times, add 4 - 6 hours for tides at Grant Narrows.

While the tides create a fair current (mostly along the south end of the lake and along the channel up the east side for about 3 kilometers from the bottom sound end of the lake) it does slow you down considerably when paddling against current, but not enough that it makes for an impossible paddle. I've left Grant Narrows before right when the tide was beginning to drop and it took me about an extra hour to get to the Osprey Creek campsite, about 18 kms up the lake (4 hours instead of my usual 3).

Dan

http://www.westcoastpaddler.com

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post #8 of (permalink) Old 07-22-2010, 11:37 PM Thread Starter
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quote:Originally posted by Dru

The heights don't really seem to change all that much imho. I think it makes the most difference near the Polder when you are paddling, there's an in/out current.
When I was paddling last year in low tide I saw the water line on cliffs ~5-7K from canoe rental on the lake almost 1 meter above the water level.
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post #9 of (permalink) Old 08-07-2010, 03:07 PM
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All my years paddling Pitt I have never been able to predict the high and low times based on either Point Atkinson or New West tide stations. I have been told everything from 2+ to 6+ hours but nothing seems to work. It seems like Pitt has a tide-mind of its own. Now I don't even look at the tide predictions and just take what I get and always leave my canoes well away from the shore (especially when at Raven Creek). Like WCP I find the tide can make an hour difference in the lower part of Pitt.
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post #10 of (permalink) Old 10-11-2010, 10:13 AM
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Just went canoeing up Widgeon. Thought we were smart, read the posts, researched the tide charts, formulated our plan. Hah!
I concur. The tides at Pitt have a mind of their own.
I formerly spent a lot of time on the lake so I was fairly confident, even though my paddling partner was a first-timer. We had no problems, but I was disconcerted by how far off the mark we were.
Crossing back to the boat launch in the afternoon in the northerly winds was fun. We pretty much surfed across on the big waves. Yeehah!
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post #11 of (permalink) Old 07-09-2021, 12:02 AM
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Does the flow from the Fraser affect the time lag. It seems that if there is a lot of flow on the Fraser, that would tend to hold back the tidal flow up the Fraser.
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post #12 of (permalink) Old 07-09-2021, 04:33 PM
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A lot of variables. I have been up Widgeon creek a few times and tried to time the tides to no avail. Its likely affected by Fraser River levels and winds on the lake and how high the high tide really is. Since its only affected by high tide only the peak of the tide will affect the lake and Widgeon creek. The lake is at about 3 metres elevation. So only the portion of the tide above that will influence it. You likely cant base anything on the low tide. Only when the high tide over 3 metres comes and goes will influence it. Anything below that and its an outflow. Apply the time lag from Pt Atkinson or New West to the high tide over 3 metres. Maybe you get some idea from that.

if you're not hiking you should be skiing
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post #13 of (permalink) Old 07-09-2021, 04:35 PM
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Here is something published but I dont know the accuracy.


http://www.gpsnauticalcharts.com/mai...cal-chart.html

if you're not hiking you should be skiing
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post #14 of (permalink) Old 07-09-2021, 07:04 PM
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The Fraser levels are crucial as well as the actual tide. Sometimes there are extreme highs and lows and sometimes almost none.

I prefer this tide chart as it's a good visual.

https://www.dairiki.org/tides/daily.php/nwm
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