ETSS stn

This website is considered EXPERIMENTAL, is supported on an 8x5 basis, and has no guarantee of availability.
The data located HERE are considered OPERATIONAL and are supported on a 24x7 basis.

	Cherry Point, WA

	Friday Harbor WA

	Port Townsend

	Seattle, WA

	Port Angeles, WA

	Neah Bay, WA

	Toke Point, WA

	Astoria, OR

	South Beach, OR

	Charleston, OR

	Port Orford, OR

	Crescent City, CA

	North Spit, CA

	Arena Cove, CA

	Point Reyes, CA

	Port Chicago, CA

	San Francisco CA
#Arena Cove, CA : 10/12/2026 15:21:55 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/11 00Z,   1.30,   0.21,   1.50,  99.90,  -0.01,
10/11 01Z,   1.30,   0.01,   1.25,  99.90,  -0.06,  (min)
10/11 02Z,   1.30,   0.46,   1.71,  99.90,  -0.05,
10/11 03Z,   1.30,   1.41,   2.62,  99.90,  -0.09,
10/11 04Z,   1.30,   2.63,   3.82,  99.90,  -0.11,
10/11 05Z,   1.30,   3.81,   4.99,  99.90,  -0.12,
10/11 06Z,   1.30,   4.66,   5.84,  99.90,  -0.12,
10/11 07Z,   1.20,   5.00,   6.19,  99.90,  -0.01,  (max)
10/11 08Z,   1.30,   4.79,   6.08,  99.90,  -0.01,
10/11 09Z,   1.30,   4.12,   5.31,  99.90,  -0.11,
10/11 10Z,   1.30,   3.21,   4.50,  99.90,  -0.01,
10/11 11Z,   1.30,   2.35,   3.66,  99.90,   0.01,
10/11 12Z,   1.40,   1.80,   3.10,  99.90,  -0.10,
10/11 13Z,   1.40,   1.74,   3.10,  99.90,  -0.04,  (min)
10/11 14Z,   1.40,   2.22,   3.52,  99.90,  -0.10,
10/11 15Z,   1.40,   3.13,   4.39,  99.90,  -0.14,
10/11 16Z,   1.40,   4.25,   5.44,  99.90,  -0.21,
10/11 17Z,   1.40,   5.28,   6.49,  99.90,  -0.19,
10/11 18Z,   1.40,   5.95,   7.15,  99.90,  -0.20,
10/11 19Z,   1.40,   6.06,   7.34,  99.90,  -0.12,  (max)
10/11 20Z,   1.40,   5.53,   6.81,  99.90,  -0.12,
10/11 21Z,   1.40,   4.46,   5.74,  99.90,  -0.12,
10/11 22Z,   1.40,   3.06,   4.38,  99.90,  -0.08,
10/11 23Z,   1.40,   1.64,   2.92,  99.90,  -0.12,
10/12 00Z,   1.30,   0.49,   1.82,  99.90,   0.03,
10/12 01Z,   1.30,  -0.14,   1.14,  99.90,  -0.02,
10/12 02Z,   1.30,  -0.13,   1.10,  99.90,  -0.07,  (min)
10/12 03Z,   1.20,   0.48,   1.69,  99.90,   0.01,
10/12 04Z,   1.20,   1.52,   2.65,  99.90,  -0.07,
10/12 05Z,   1.20,   2.73,   3.78,  99.90,  -0.15,
10/12 06Z,   1.10,   3.82,   4.86,  99.90,  -0.06,
10/12 07Z,   1.10,   4.54,   5.55,  99.90,  -0.09,
10/12 08Z,   1.10,   4.77,   5.81,  99.90,  -0.06,  (max)
10/12 09Z,   1.10,   4.50,   5.55,  99.90,  -0.05,
10/12 10Z,   1.10,   3.87,   4.99,  99.90,   0.02,
10/12 11Z,   1.10,   3.11,   4.22,  99.90,   0.01,
10/12 12Z,   1.10,   2.47,   3.56,  99.90,  -0.01,
10/12 13Z,   1.10,   2.18,   3.31,  99.90,   0.03,  (min)
10/12 14Z,   1.10,   2.34,   3.46,  99.90,   0.02,
10/12 15Z,   1.10,   2.96,   4.07,  99.90,   0.01,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/12 16Z,   1.10,   3.88,  99.90,   4.98,   0.00,
10/12 17Z,   1.10,   4.87,  99.90,   5.96,  -0.01,
10/12 18Z,   1.10,   5.66,  99.90,   6.75,  -0.02,
10/12 19Z,   1.00,   6.02,  99.90,   7.00,  -0.03,  (max)
10/12 20Z,   1.10,   5.82,  99.90,   6.88,  -0.04,
10/12 21Z,   1.10,   5.04,  99.90,   6.09,  -0.05,
10/12 22Z,   1.00,   3.83,  99.90,   4.77,  -0.06,
10/12 23Z,   1.00,   2.42,  99.90,   3.35,  -0.07,
10/13 00Z,   1.10,   1.10,  99.90,   2.12,  -0.08,
10/13 01Z,   1.10,   0.15,  99.90,   1.16,  -0.09,
10/13 02Z,   1.00,  -0.26,  99.90,   0.64,  -0.10,  (min)
10/13 03Z,   1.00,  -0.06,  99.90,   0.83,  -0.11,
10/13 04Z,   1.00,   0.66,  99.90,   1.55,  -0.11,
10/13 05Z,   1.00,   1.72,  99.90,   2.61,  -0.11,
10/13 06Z,   1.00,   2.85,  99.90,   3.74,  -0.11,
10/13 07Z,   1.00,   3.80,  99.90,   4.70,  -0.11,
10/13 08Z,   1.00,   4.39,  99.90,   5.28,  -0.11,
10/13 09Z,   1.00,   4.52,  99.90,   5.41,  -0.11,  (max)
10/13 10Z,   1.00,   4.24,  99.90,   5.13,  -0.11,
10/13 11Z,   1.00,   3.69,  99.90,   4.59,  -0.11,
10/13 12Z,   0.90,   3.11,  99.90,   3.90,  -0.11,
10/13 13Z,   0.90,   2.69,  99.90,   3.48,  -0.11,
10/13 14Z,   0.90,   2.61,  99.90,   3.41,  -0.11,  (min)
10/13 15Z,   0.90,   2.93,  99.90,   3.73,  -0.11,
10/13 16Z,   0.90,   3.60,  99.90,   4.39,  -0.11,
10/13 17Z,   0.90,   4.44,  99.90,   5.23,  -0.11,
10/13 18Z,   0.90,   5.24,  99.90,   6.03,  -0.11,
10/13 19Z,   0.90,   5.77,  99.90,   6.56,  -0.11,
10/13 20Z,   0.90,   5.85,  99.90,   6.64,  -0.11,  (max)
10/13 21Z,   0.90,   5.40,  99.90,   6.19,  -0.11,
10/13 22Z,   0.90,   4.47,  99.90,   5.26,  -0.11,
10/13 23Z,   0.90,   3.23,  99.90,   4.02,  -0.11,
10/14 00Z,   0.90,   1.91,  99.90,   2.70,  -0.11,
10/14 01Z,   0.90,   0.77,  99.90,   1.56,  -0.11,
10/14 02Z,   0.90,   0.03,  99.90,   0.82,  -0.11,
10/14 03Z,   0.90,  -0.18,  99.90,   0.62,  -0.11,  (min)
10/14 04Z,   0.90,   0.16,  99.90,   0.95,  -0.11,
10/14 05Z,   0.80,   0.92,  99.90,   1.61,  -0.11,
10/14 06Z,   0.80,   1.93,  99.90,   2.62,  -0.11,
10/14 07Z,   0.90,   2.94,  99.90,   3.73,  -0.11,
10/14 08Z,   0.80,   3.74,  99.90,   4.44,  -0.11,
10/14 09Z,   0.80,   4.20,  99.90,   4.90,  -0.11,
10/14 10Z,   0.90,   4.28,  99.90,   5.07,  -0.11,  (max)
10/14 11Z,   0.90,   4.03,  99.90,   4.82,  -0.11,
10/14 12Z,   0.80,   3.61,  99.90,   4.30,  -0.11,
10/14 13Z,   0.80,   3.20,  99.90,   3.89,  -0.11,
10/14 14Z,   0.90,   2.97,  99.90,   3.76,  -0.11,
10/14 15Z,   0.80,   3.05,  99.90,   3.74,  -0.11,  (min)
10/14 16Z,   0.80,   3.44,  99.90,   4.13,  -0.11,
10/14 17Z,   0.80,   4.07,  99.90,   4.76,  -0.11,
10/14 18Z,   0.80,   4.77,  99.90,   5.46,  -0.11,
10/14 19Z,   0.80,   5.36,  99.90,   6.05,  -0.11,
10/14 20Z,   0.80,   5.65,  99.90,   6.34,  -0.11,  (max)
10/14 21Z,   0.90,   5.51,  99.90,   6.30,  -0.11,
10/14 22Z,   0.80,   4.91,  99.90,   5.61,  -0.11,
10/14 23Z,   0.90,   3.95,  99.90,   4.74,  -0.11,
10/15 00Z,   0.90,   2.77,  99.90,   3.56,  -0.11,
10/15 01Z,   0.90,   1.60,  99.90,   2.39,  -0.11,
10/15 02Z,   0.90,   0.66,  99.90,   1.45,  -0.11,
10/15 03Z,   0.90,   0.11,  99.90,   0.91,  -0.11,
10/15 04Z,   0.90,   0.05,  99.90,   0.84,  -0.11,  (min)
10/15 05Z,   0.90,   0.44,  99.90,   1.23,  -0.11,
10/15 06Z,   0.90,   1.18,  99.90,   1.97,  -0.11,
10/15 07Z,   0.90,   2.09,  99.90,   2.88,  -0.11,
10/15 08Z,   0.90,   2.97,  99.90,   3.76,  -0.11,
10/15 09Z,   0.90,   3.64,  99.90,   4.44,  -0.11,
10/15 10Z,   0.90,   4.02,  99.90,   4.81,  -0.11,
10/15 11Z,   0.90,   4.09,  99.90,   4.88,  -0.11,  (max)
10/15 12Z,   0.90,   3.91,  99.90,   4.70,  -0.11,
10/15 13Z,   0.90,   3.61,  99.90,   4.40,  -0.11,
10/15 14Z,   0.90,   3.35,  99.90,   4.14,  -0.11,
10/15 15Z,   0.90,   3.25,  99.90,   4.05,  -0.11,  (min)
10/15 16Z,   0.90,   3.40,  99.90,   4.19,  -0.11,
10/15 17Z,   0.90,   3.79,  99.90,   4.58,  -0.11,
10/15 18Z,   0.90,   4.32,  99.90,   5.11,  -0.11,
10/15 19Z,   0.90,   4.87,  99.90,   5.66,  -0.11,
10/15 20Z,   0.90,   5.27,  99.90,   6.06,  -0.11,
10/15 21Z,   0.90,   5.38,  99.90,   6.17,  -0.11,  (max)
10/15 22Z,   0.90,   5.12,  99.90,   5.91,  -0.11,
10/15 23Z,   0.90,   4.48,  99.90,   5.27,  -0.11,
10/16 00Z,   0.90,   3.56,  99.90,   4.35,  -0.11,
10/16 01Z,   0.90,   2.51,  99.90,   3.30,  -0.11,
10/16 02Z,   0.90,   1.50,  99.90,   2.29,  -0.11,
10/16 03Z,   0.90,   0.73,  99.90,   1.52,  -0.11,
10/16 04Z,   0.90,   0.31,  99.90,   1.10,  -0.11,  (min)
10/16 05Z,   0.90,   0.31,  99.90,   1.10,  -0.11,
10/16 06Z,   0.90,   0.70,  99.90,   1.49,  -0.11,
10/16 07Z,  99.90,   1.38,  99.90,  99.90,  -0.11,
10/16 08Z,  99.90,   2.18,  99.90,  99.90,  -0.11,
10/16 09Z,  99.90,   2.95,  99.90,  99.90,  -0.11,
10/16 10Z,  99.90,   3.54,  99.90,  99.90,  -0.11,
10/16 11Z,  99.90,   3.89,  99.90,  99.90,  -0.11,
10/16 12Z,  99.90,   3.99,  99.90,  99.90,  -0.11,