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.

	Port Heiden, AK

	Egegik, AK

	Naknek, AK

	Clark's Pt, AK

	Goodnews Bay

	Quinhagak, AK

	Kuskokwak, AK

	Eek, Apokak, AK

	Popokamute, AK

	Scammon Bay AK

	St. Lawrence, AK

	Kwikluak, AK

	Kawanak, AK

	Apoon, Yukon, AK

	St. Michaels, AK

	Golovin, AK

	Nome, AK

	Port Clarence, AK

	Kotzebue, AK

	Pt. Barrow, AK

	Prudhoe Bay, AK

	St. Paul Island AK
#Port Heiden, AK : 04/18/2026 15:21:52 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/17 00Z,   0.00,  -5.72,  99.90,  -5.72,   0.00,
04/17 01Z,   0.00,  -7.38,  99.90,  -7.38,   0.00,
04/17 02Z,   0.00,  -9.66,  99.90,  -9.66,   0.00,
04/17 03Z,   0.00, -12.04,  99.90, -12.04,   0.00,
04/17 04Z,   0.00, -13.62,  99.90, -13.62,   0.00,  (min)
04/17 05Z,   0.00, -13.35,  99.90, -13.35,   0.00,
04/17 06Z,   0.10, -11.02,  99.90, -10.92,   0.00,
04/17 07Z,   0.10,  -7.87,  99.90,  -7.77,   0.00,
04/17 08Z,   0.10,  -5.37,  99.90,  -5.27,   0.00,
04/17 09Z,   0.10,  -4.00,  99.90,  -3.90,   0.00,
04/17 10Z,   0.10,  -3.47,  99.90,  -3.37,   0.00,
04/17 11Z,   0.10,  -3.40,  99.90,  -3.30,   0.00,  (max)
04/17 12Z,   0.20,  -3.52,  99.90,  -3.32,   0.00,
04/17 13Z,   0.20,  -4.06,  99.90,  -3.86,   0.00,
04/17 14Z,   0.20,  -5.24,  99.90,  -5.04,   0.00,
04/17 15Z,   0.20,  -6.95,  99.90,  -6.75,   0.00,
04/17 16Z,   0.10,  -8.70,  99.90,  -8.60,   0.00,
04/17 17Z,   0.10,  -9.55,  99.90,  -9.45,   0.00,  (min)
04/17 18Z,   0.00,  -8.81,  99.90,  -8.81,   0.00,
04/17 19Z,   0.00,  -7.02,  99.90,  -7.02,   0.00,
04/17 20Z,   0.00,  -5.52,  99.90,  -5.52,   0.00,
04/17 21Z,   0.00,  -4.89,  99.90,  -4.89,   0.00,
04/17 22Z,   0.00,  -4.78,  99.90,  -4.78,   0.00,  (max)
04/17 23Z,   0.00,  -4.85,  99.90,  -4.85,   0.00,
04/18 00Z,  -0.10,  -5.36,  99.90,  -5.46,   0.00,
04/18 01Z,  -0.10,  -6.61,  99.90,  -6.71,   0.00,
04/18 02Z,  -0.10,  -8.70,  99.90,  -8.80,   0.00,
04/18 03Z,   0.00, -11.34,  99.90, -11.34,   0.00,
04/18 04Z,   0.00, -13.85,  99.90, -13.85,   0.00,
04/18 05Z,   0.00, -15.17,  99.90, -15.17,   0.00,  (min)
04/18 06Z,  -0.20, -14.26,  99.90, -14.46,   0.00,
04/18 07Z,  -0.20, -11.22,  99.90, -11.42,   0.00,
04/18 08Z,  -0.20,  -7.56,  99.90,  -7.76,   0.00,
04/18 09Z,  -0.20,  -4.76,  99.90,  -4.96,   0.00,
04/18 10Z,  -0.20,  -3.21,  99.90,  -3.41,   0.00,
04/18 11Z,  -0.10,  -2.60,  99.90,  -2.70,   0.00,
04/18 12Z,  -0.10,  -2.52,  99.90,  -2.62,   0.00,  (max)
04/18 13Z,  -0.10,  -2.67,  99.90,  -2.77,   0.00,
04/18 14Z,  -0.10,  -3.29,  99.90,  -3.39,   0.00,
04/18 15Z,  -0.10,  -4.60,  99.90,  -4.70,   0.00,
04/18 16Z,  -0.10,  -6.48,  99.90,  -6.58,   0.00,
04/18 17Z,  -0.10,  -8.36,  99.90,  -8.46,   0.00,
04/18 18Z,   0.00,  -9.22,  99.90,  -9.22,   0.00,  (min)
04/18 19Z,   0.00,  -8.44,  99.90,  -8.44,   0.00,
04/18 20Z,   0.10,  -6.75,  99.90,  -6.65,   0.00,
04/18 21Z,   0.10,  -5.47,  99.90,  -5.37,   0.00,
04/18 22Z,   0.10,  -5.03,  99.90,  -4.93,   0.00,
04/18 23Z,   0.10,  -5.00,  99.90,  -4.90,   0.00,  (max)
04/19 00Z,   0.00,  -5.15,  99.90,  -5.15,   0.00,
04/19 01Z,   0.00,  -5.88,  99.90,  -5.88,   0.00,
04/19 02Z,   0.00,  -7.47,  99.90,  -7.47,   0.00,
04/19 03Z,   0.10,  -9.94,  99.90,  -9.84,   0.00,
04/19 04Z,   0.30, -12.87,  99.90, -12.57,   0.00,
04/19 05Z,   0.40, -15.44,  99.90, -15.04,   0.00,
04/19 06Z,   0.50, -16.45,  99.90, -15.95,   0.00,  (min)
04/19 07Z,   0.80, -14.92,  99.90, -14.12,   0.00,
04/19 08Z,   1.00, -11.26,  99.90, -10.26,   0.00,
04/19 09Z,   1.20,  -7.19,  99.90,  -5.99,   0.00,
04/19 10Z,   1.20,  -4.15,  99.90,  -2.95,   0.00,
04/19 11Z,   1.10,  -2.47,  99.90,  -1.37,   0.00,
04/19 12Z,   1.00,  -1.81,  99.90,  -0.81,   0.00,  (max)
04/19 13Z,   0.80,  -1.74,  99.90,  -0.94,   0.00,
04/19 14Z,   0.70,  -1.94,  99.90,  -1.24,   0.00,
04/19 15Z,   0.70,  -2.66,  99.90,  -1.96,   0.00,
04/19 16Z,   0.60,  -4.13,  99.90,  -3.53,   0.00,
04/19 17Z,   0.70,  -6.21,  99.90,  -5.51,   0.00,
04/19 18Z,   0.70,  -8.22,  99.90,  -7.52,   0.00,
04/19 19Z,   0.80,  -9.08,  99.90,  -8.28,   0.00,  (min)
04/19 20Z,   0.90,  -8.24,  99.90,  -7.34,   0.00,
04/19 21Z,   1.00,  -6.60,  99.90,  -5.60,   0.00,
04/19 22Z,   1.10,  -5.46,  99.90,  -4.36,   0.00,
04/19 23Z,   1.20,  -5.13,  99.90,  -3.93,   0.00,
04/20 00Z,   1.20,  -5.13,  99.90,  -3.93,   0.00,  (max)
04/20 01Z,   1.20,  -5.38,  99.90,  -4.18,   0.00,
04/20 02Z,   1.20,  -6.30,  99.90,  -5.10,   0.00,
04/20 03Z,   1.20,  -8.18,  99.90,  -6.98,   0.00,
04/20 04Z,   1.20, -10.94,  99.90,  -9.74,   0.00,
04/20 05Z,   1.20, -14.08,  99.90, -12.88,   0.00,
04/20 06Z,   1.20, -16.67,  99.90, -15.47,   0.00,
04/20 07Z,   0.90, -17.37,  99.90, -16.47,   0.00,  (min)
04/20 08Z,   0.50, -15.30,  99.90, -14.80,   0.00,
04/20 09Z,   0.20, -11.17,  99.90, -10.97,   0.00,
04/20 10Z,   0.10,  -6.80,  99.90,  -6.70,   0.00,
04/20 11Z,   0.10,  -3.62,  99.90,  -3.52,   0.00,
04/20 12Z,   0.10,  -1.88,  99.90,  -1.78,   0.00,
04/20 13Z,   0.00,  -1.21,  99.90,  -1.21,   0.00,
04/20 14Z,   0.00,  -1.15,  99.90,  -1.15,   0.00,  (max)
04/20 15Z,   0.00,  -1.40,  99.90,  -1.40,   0.00,
04/20 16Z,   0.10,  -2.24,  99.90,  -2.14,   0.00,
04/20 17Z,   0.20,  -3.90,  99.90,  -3.70,   0.00,
04/20 18Z,   0.30,  -6.17,  99.90,  -5.87,   0.00,
04/20 19Z,   0.50,  -8.31,  99.90,  -7.81,   0.00,
04/20 20Z,   0.50,  -9.13,  99.90,  -8.63,   0.00,  (min)
04/20 21Z,   0.60,  -8.20,  99.90,  -7.60,   0.00,
04/20 22Z,   0.70,  -6.55,  99.90,  -5.85,   0.00,
04/20 23Z,   0.80,  -5.47,  99.90,  -4.67,   0.00,
04/21 00Z,   0.80,  -5.18,  99.90,  -4.38,   0.00,  (max)
04/21 01Z,   0.80,  -5.18,  99.90,  -4.38,   0.00,
04/21 02Z,   0.60,  -5.50,  99.90,  -4.90,   0.00,
04/21 03Z,   0.40,  -6.57,  99.90,  -6.17,   0.00,
04/21 04Z,   0.20,  -8.63,  99.90,  -8.43,   0.00,
04/21 05Z,   0.00, -11.58,  99.90, -11.58,   0.00,
04/21 06Z,  -0.10, -14.87,  99.90, -14.97,   0.00,
04/21 07Z,  -0.20, -17.45,  99.90, -17.65,   0.00,
04/21 08Z,  -0.40, -17.88,  99.90, -18.28,   0.00,  (min)
04/21 09Z,  -0.50, -15.41,  99.90, -15.91,   0.00,
04/21 10Z,  -0.50, -10.96,  99.90, -11.46,   0.00,
04/21 11Z,  -0.60,  -6.45,  99.90,  -7.05,   0.00,
04/21 12Z,  -0.60,  -3.22,  99.90,  -3.82,   0.00,
04/21 13Z,  -0.60,  -1.48,  99.90,  -2.08,   0.00,
04/21 14Z,  -0.60,  -0.82,  99.90,  -1.42,   0.00,
04/21 15Z,  -0.60,  -0.80,  99.90,  -1.40,   0.00,  (max)
04/21 16Z,  -0.50,  -1.11,  99.90,  -1.61,   0.00,
04/21 17Z,  -0.40,  -2.08,  99.90,  -2.48,   0.00,
04/21 18Z,  -0.30,  -3.91,  99.90,  -4.21,   0.00,
04/21 19Z,  -0.30,  -6.38,  99.90,  -6.68,   0.00,
04/21 20Z,  -0.30,  -8.60,  99.90,  -8.90,   0.00,
04/21 21Z,  -0.30,  -9.35,  99.90,  -9.65,   0.00,  (min)
04/21 22Z,  -0.40,  -8.30,  99.90,  -8.70,   0.00,
04/21 23Z,  -0.40,  -6.57,  99.90,  -6.97,   0.00,
04/22 00Z,  -0.50,  -5.47,  99.90,  -5.97,   0.00,
04/22 01Z,  -0.50,  -5.16,  99.90,  -5.66,   0.00,  (max)
04/22 02Z,  -0.60,  -5.16,  99.90,  -5.76,   0.00,
04/22 03Z,  -0.50,  -5.51,  99.90,  -6.01,   0.00,
04/22 04Z,  -0.40,  -6.64,  99.90,  -7.04,   0.00,
04/22 05Z,  -0.30,  -8.78,  99.90,  -9.08,   0.00,
04/22 06Z,  -0.10, -11.82,  99.90, -11.92,   0.00,
04/22 07Z,  99.90, -15.18,  99.90,  99.90,   0.00,
04/22 08Z,  99.90, -17.72,  99.90,  99.90,   0.00,
04/22 09Z,  99.90, -17.96,  99.90,  99.90,   0.00,
04/22 10Z,  99.90, -15.24,  99.90,  99.90,   0.00,
04/22 11Z,  99.90, -10.65,  99.90,  99.90,   0.00,
04/22 12Z,  99.90,  -6.14,  99.90,  99.90,   0.00,