WWW Tide and Current Predictor

20 Sep 2021: After a hardware failure in tbone.biol.sc.edu, temporary move to tide.arthroinfo.org.
30 Dec 2010: If you are using a mobile device, try the simplified site.
12 May 2016: Computer replaced after failure due to power outage.
29 Sep 2016: Shutdown 20:20 GMT due to campus wide electrical outage.
30 Sept 2016: Restart 14:12 GMT

Pick a different site  |  Frequently Asked Questions
Web interface by Dean Pentcheff, calculations and graphics by David Flater's XTide Program

NOT FOR NAVIGATION. This program is furnished in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of merchantability or fitness for a particular purpose. Do not use this program as a basis for any decisions that could result in harm to people, other organisms, or property. Check these predictions against officially sanctioned tables. Agencies like NOAA exist because there is a need for certifiably correct tide predictions. Do not rely on these predictions if you need guaranteed results. There is NO WAY we can get certified data on a zero budget. We rely on users like you to tell us when something is wrong. Please continue to do so.
Remember that weather conditions affect tidal ranges and current speeds, sometimes very strongly.

Kelley Point, Oregon - IGNORE HEIGHTS

28 November 2021 - 30 November 2021

45.6500 N, 122.7667 W
Note:  The Columbia River is subject to annual freshets.  Short range predictions are available at local river forecast centers.  The data for stations above Harrington Point apply only during low river stages.  There is a tidal influence along most of the length of the Columbia River.  However, that influence becomes smaller at greater distances from the Pacific Ocean.  We are able to provide predictions of the times and height of tides from the Columbia River Entrance to Harrington Point, Washington.  Above Harrington Point, although there is still a tidal influence and we can predict the times of the high and low tides, the water levels experienced are more a result of freshwater flow in the river than the astronomical tides.  It is for this reason that the heights of both high and low tides along the Columbia River, above Harrington Point, are set to a value of 0.0 feet. Heights for this station should be disregarded--use times only.

2021-11-28  00:02 PST   7.02 feet  High Tide
2021-11-28  00:17 PST   Moonrise
2021-11-28  07:28 PST   Sunrise
2021-11-28  08:43 PST   1.36 feet  Low Tide
2021-11-28  13:47 PST   7.76 feet  High Tide
2021-11-28  13:52 PST   Moonset
2021-11-28  16:29 PST   Sunset
2021-11-28  21:42 PST   3.18 feet  Low Tide
2021-11-29  01:29 PST   6.89 feet  High Tide
2021-11-29  01:29 PST   Moonrise
2021-11-29  07:29 PST   Sunrise
2021-11-29  09:41 PST   1.57 feet  Low Tide
2021-11-29  14:12 PST   Moonset
2021-11-29  14:32 PST   8.32 feet  High Tide
2021-11-29  16:29 PST   Sunset
2021-11-29  22:46 PST   2.25 feet  Low Tide

Prediction Options

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Puzzled by something? Please check the Frequently Asked Questions list.
Send queries about the WWW interface to Dean Pentcheff <tidecomment@gmail.com>.
Send queries about the XTide program to David Flater <dave@flaterco.com>.
WWW Tide/Current Predictor: http://tide.arthroinfo.org
Dean Pentcheff <tidecomment@gmail.com>
Traditionally hosted from: Biological Sciences, University of South Carolina, Columbia SC 29208 USA