David Flater (who is author of xtide, the program I use to produce this data) provides the following disclaimer, behind which I firmly stand:

Do not rely on the output of this program for decisions that can result in harm to anyone or anything. Really. I mean it.

Agencies like NOAA exist because there is a need for certifiably correct tide predictions. Please do not rely on XTide if you need guaranteed results. There is no way I can get certified data on a zero budget. I rely on users like you to tell me when something is wrong. Please continue to do so.

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Tidal Heights at Twin Rivers, Strait of Juan de Fuca, Washington

Time Zone is PSTUnits are feet
Wed 01 Dec04:331.7L10:387.7H17:370.1L23:366.1H
Thu 02 Dec05:231.9L11:198.2H18:25-0.7L
Fri 03 Dec000:336.4H06:122.1L12:018.6H19:13-1.3L
Sat 04 Dec01:276.6H07:012.4L12:448.8H20:00-1.7L
Sun 05 Dec02:206.7H07:502.5L13:308.8H20:48-1.7L
Mon 06 Dec03:126.7H08:402.7L14:188.5H21:37-1.5L
Tue 07 Dec04:056.6H09:332.9L15:098.1H22:27-1.1L
Wed 08 Dec04:596.5H10:313.0L16:057.5H23:19-0.5L
Thu 09 Dec05:566.4H11:363.0L17:076.8H
Fri 10 DecG00:130.1L06:536.4H12:482.9L18:176.1H
Sat 11 Dec01:090.7L07:486.5H14:052.6L19:335.6H
Sun 12 Dec02:061.3L08:406.7H15:192.1L20:525.3H
Mon 13 Dec03:021.8L09:266.9H16:211.5L22:055.3H
Tue 14 Dec03:552.2L10:077.1H17:120.9L23:095.4H
Wed 15 Dec04:452.6L10:467.3H17:560.5L
Thu 16 Dec00:035.6H05:302.8L11:217.5H18:350.1L
Fri 17 Dec00:505.8H06:123.0L11:567.5H19:11-0.1L
Sat 18 Dec@01:316.0H06:523.2L12:307.6H19:46-0.3L
Sun 19 Dec02:096.1H07:303.3L13:047.5H20:20-0.3L
Mon 20 Dec02:476.1H08:073.3L13:387.4H20:55-0.3L
Tue 21 Dec03:246.1H08:443.4L14:127.3H21:30-0.2L
Wed 22 Dec04:026.0H09:243.4L14:487.1H22:06-0.1L
Thu 23 Dec04:406.0H10:063.4L15:276.8H22:440.1L
Fri 24 Dec05:216.0H10:563.3L16:136.4H23:240.4L
Sat 25 Dec06:036.2H11:543.2L17:096.0H
Sun 26 DecT00:080.8L06:486.4H13:002.8L18:195.6H
Mon 27 Dec00:571.2L07:336.7H14:102.3L19:415.3H
Tue 28 Dec01:511.7L08:217.1H15:191.6L21:035.2H
Wed 29 Dec02:512.2L09:097.5H16:210.7L22:195.5H
Thu 30 Dec03:532.5L09:588.0H17:17-0.1L23:275.8H
Fri 31 Dec04:532.8L10:488.4H18:10-0.8L

QR code: https://www.dairiki.org/tides/monthly.php/twnr/2021-12 Available online at

The data in the above table was generated using the program xtide, written by David Flater.
No guarantees as to the correctness of this data are made or implied.
Do not rely on it to make decisions which can result in harm to anyone or anything.

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