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.
#Adak Island, AK : 04/27/2025 18:20:01 GMT (units in feet MSL)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/26 00Z,   0.00,   0.12,   0.18,  99.90,   0.06,
04/26 01Z,   0.00,   0.16,   0.14,  99.90,  -0.02,  (max)
04/26 02Z,   0.00,   0.07,   0.01,  99.90,  -0.06,
04/26 03Z,   0.00,  -0.10,  -0.23,  99.90,  -0.13,
04/26 04Z,   0.00,  -0.30,  -0.40,  99.90,  -0.10,
04/26 05Z,   0.00,  -0.44,  -0.52,  99.90,  -0.08,
04/26 06Z,   0.00,  -0.48,  -0.55,  99.90,  -0.07,  (min)
04/26 07Z,   0.00,  -0.38,  -0.43,  99.90,  -0.05,
04/26 08Z,   0.00,  -0.14,  -0.12,  99.90,   0.02,
04/26 09Z,   0.00,   0.20,   0.26,  99.90,   0.06,
04/26 10Z,   0.00,   0.55,   0.58,  99.90,   0.03,
04/26 11Z,   0.00,   0.85,   0.88,  99.90,   0.03,
04/26 12Z,   0.00,   0.99,   1.08,  99.90,   0.09,  (max)
04/26 13Z,  -0.10,   0.93,   1.00,  99.90,   0.17,
04/26 14Z,  -0.10,   0.65,   0.72,  99.90,   0.17,
04/26 15Z,  -0.10,   0.19,   0.25,  99.90,   0.16,
04/26 16Z,  -0.10,  -0.38,  -0.30,  99.90,   0.18,
04/26 17Z,  -0.10,  -0.95,  -0.90,  99.90,   0.15,
04/26 18Z,  -0.10,  -1.43,  -1.39,  99.90,   0.14,
04/26 19Z,  -0.10,  -1.72,  -1.73,  99.90,   0.09,
04/26 20Z,  -0.10,  -1.79,  -1.86,  99.90,   0.03,  (min)
04/26 21Z,  -0.10,  -1.64,  -1.62,  99.90,   0.12,
04/26 22Z,  -0.10,  -1.31,  -1.35,  99.90,   0.06,
04/26 23Z,  -0.20,  -0.89,  -0.97,  99.90,   0.12,
04/27 00Z,  -0.10,  -0.46,  -0.58,  99.90,  -0.02,
04/27 01Z,  -0.10,  -0.11,  -0.27,  99.90,  -0.06,
04/27 02Z,  -0.20,   0.13,  -0.12,  99.90,  -0.05,
04/27 03Z,  -0.20,   0.23,  -0.01,  99.90,  -0.04,
04/27 04Z,  -0.20,   0.24,   0.04,  99.90,  -0.00,  (max)
04/27 05Z,  -0.20,   0.20,   0.02,  99.90,   0.02,
04/27 06Z,  -0.20,   0.17,   0.02,  99.90,   0.05,  (min)
04/27 07Z,  -0.20,   0.22,   0.14,  99.90,   0.12,
04/27 08Z,  -0.20,   0.36,   0.25,  99.90,   0.09,
04/27 09Z,  -0.20,   0.60,   0.56,  99.90,   0.16,
04/27 10Z,  -0.20,   0.89,   0.87,  99.90,   0.18,
04/27 11Z,  -0.30,   1.16,   1.18,  99.90,   0.32,
04/27 12Z,  -0.30,   1.34,   1.37,  99.90,   0.33,  (max)
04/27 13Z,  -0.30,   1.33,   1.33,  99.90,   0.30,
04/27 14Z,  -0.30,   1.09,   1.04,  99.90,   0.25,
04/27 15Z,  -0.30,   0.62,   0.60,  99.90,   0.28,
04/27 16Z,  -0.30,  -0.03,  -0.05,  99.90,   0.28,
04/27 17Z,  -0.30,  -0.79,  -0.81,  99.90,   0.28,
04/27 18Z,  -0.30,  -1.52,  -1.53,  99.90,   0.29,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/27 19Z,  -0.30,  -2.13,  99.90,  -2.14,   0.28,
04/27 20Z,  -0.30,  -2.49,  99.90,  -2.53,   0.27,
04/27 21Z,  -0.30,  -2.58,  99.90,  -2.63,   0.25,  (min)
04/27 22Z,  -0.40,  -2.39,  99.90,  -2.55,   0.24,
04/27 23Z,  -0.40,  -1.97,  99.90,  -2.14,   0.22,
04/28 00Z,  -0.40,  -1.40,  99.90,  -1.59,   0.21,
04/28 01Z,  -0.30,  -0.80,  99.90,  -0.91,   0.19,
04/28 02Z,  -0.30,  -0.25,  99.90,  -0.37,   0.18,
04/28 03Z,  -0.30,   0.18,  99.90,   0.04,   0.17,
04/28 04Z,  -0.30,   0.47,  99.90,   0.32,   0.15,
04/28 05Z,  -0.20,   0.63,  99.90,   0.57,   0.14,
04/28 06Z,  -0.10,   0.71,  99.90,   0.73,   0.12,
04/28 07Z,   0.00,   0.76,  99.90,   0.89,   0.12,
04/28 08Z,   0.00,   0.85,  99.90,   0.97,   0.12,
04/28 09Z,   0.00,   0.99,  99.90,   1.12,   0.12,
04/28 10Z,   0.10,   1.20,  99.90,   1.43,   0.12,
04/28 11Z,   0.10,   1.44,  99.90,   1.66,   0.12,
04/28 12Z,   0.20,   1.63,  99.90,   1.95,   0.12,
04/28 13Z,   0.20,   1.70,  99.90,   2.02,   0.12,  (max)
04/28 14Z,   0.20,   1.56,  99.90,   1.89,   0.12,
04/28 15Z,   0.20,   1.19,  99.90,   1.51,   0.12,
04/28 16Z,   0.10,   0.57,  99.90,   0.79,   0.12,
04/28 17Z,   0.10,  -0.25,  99.90,  -0.02,   0.12,
04/28 18Z,   0.10,  -1.15,  99.90,  -0.93,   0.12,
04/28 19Z,   0.10,  -2.02,  99.90,  -1.80,   0.12,
04/28 20Z,   0.00,  -2.72,  99.90,  -2.60,   0.12,
04/28 21Z,   0.00,  -3.14,  99.90,  -3.02,   0.12,
04/28 22Z,   0.00,  -3.24,  99.90,  -3.11,   0.12,  (min)
04/28 23Z,   0.00,  -3.00,  99.90,  -2.87,   0.12,
04/29 00Z,   0.00,  -2.48,  99.90,  -2.36,   0.12,
04/29 01Z,   0.00,  -1.78,  99.90,  -1.66,   0.12,
04/29 02Z,   0.00,  -1.02,  99.90,  -0.90,   0.12,
04/29 03Z,  -0.10,  -0.30,  99.90,  -0.28,   0.12,
04/29 04Z,  -0.10,   0.29,  99.90,   0.32,   0.12,
04/29 05Z,  -0.20,   0.72,  99.90,   0.65,   0.12,
04/29 06Z,  -0.20,   0.99,  99.90,   0.92,   0.12,
04/29 07Z,  -0.20,   1.15,  99.90,   1.07,   0.12,  (max)
04/29 08Z,  -0.30,   1.23,  99.90,   1.06,   0.12,
04/29 09Z,  -0.40,   1.32,  99.90,   1.04,   0.12,  (min)
04/29 10Z,  -0.40,   1.44,  99.90,   1.17,   0.12,
04/29 11Z,  -0.40,   1.61,  99.90,   1.33,   0.12,
04/29 12Z,  -0.40,   1.79,  99.90,   1.51,   0.12,
04/29 13Z,  -0.40,   1.92,  99.90,   1.64,   0.12,  (max)
04/29 14Z,  -0.40,   1.91,  99.90,   1.63,   0.12,
04/29 15Z,  -0.40,   1.69,  99.90,   1.42,   0.12,
04/29 16Z,  -0.40,   1.22,  99.90,   0.95,   0.12,
04/29 17Z,  -0.40,   0.50,  99.90,   0.22,   0.12,
04/29 18Z,  -0.40,  -0.42,  99.90,  -0.70,   0.12,
04/29 19Z,  -0.40,  -1.43,  99.90,  -1.71,   0.12,
04/29 20Z,  -0.40,  -2.39,  99.90,  -2.66,   0.12,
04/29 21Z,  -0.40,  -3.15,  99.90,  -3.42,   0.12,
04/29 22Z,  -0.40,  -3.60,  99.90,  -3.88,   0.12,
04/29 23Z,  -0.40,  -3.69,  99.90,  -3.96,   0.12,  (min)
04/30 00Z,  -0.50,  -3.40,  99.90,  -3.77,   0.12,
04/30 01Z,  -0.50,  -2.80,  99.90,  -3.17,   0.12,
04/30 02Z,  -0.50,  -1.99,  99.90,  -2.37,   0.12,
04/30 03Z,  -0.50,  -1.10,  99.90,  -1.48,   0.12,
04/30 04Z,  -0.50,  -0.26,  99.90,  -0.64,   0.12,
04/30 05Z,  -0.50,   0.44,  99.90,   0.07,   0.12,
04/30 06Z,  -0.50,   0.96,  99.90,   0.58,   0.12,
04/30 07Z,  -0.50,   1.28,  99.90,   0.90,   0.12,
04/30 08Z,  -0.50,   1.45,  99.90,   1.07,   0.12,
04/30 09Z,  -0.50,   1.53,  99.90,   1.15,   0.12,
04/30 10Z,  -0.50,   1.59,  99.90,   1.21,   0.12,
04/30 11Z,  -0.50,   1.67,  99.90,   1.29,   0.12,
04/30 12Z,  -0.60,   1.79,  99.90,   1.32,   0.12,
04/30 13Z,  -0.60,   1.93,  99.90,   1.45,   0.12,
04/30 14Z,  -0.60,   2.02,  99.90,   1.54,   0.12,  (max)
04/30 15Z,  -0.60,   1.97,  99.90,   1.50,   0.12,
04/30 16Z,  -0.60,   1.72,  99.90,   1.24,   0.12,
04/30 17Z,  -0.60,   1.20,  99.90,   0.73,   0.12,
04/30 18Z,  -0.60,   0.43,  99.90,  -0.04,   0.12,
04/30 19Z,  -0.70,  -0.54,  99.90,  -1.12,   0.12,
04/30 20Z,  -0.70,  -1.59,  99.90,  -2.17,   0.12,
04/30 21Z,  -0.70,  -2.59,  99.90,  -3.17,   0.12,
04/30 22Z,  -0.70,  -3.38,  99.90,  -3.95,   0.12,
04/30 23Z,  -0.70,  -3.84,  99.90,  -4.41,   0.12,
05/01 00Z,  -0.70,  -3.90,  99.90,  -4.48,   0.12,  (min)
05/01 01Z,  -0.70,  -3.57,  99.90,  -4.14,   0.12,
05/01 02Z,  -0.70,  -2.90,  99.90,  -3.48,   0.12,
05/01 03Z,  -0.70,  -2.02,  99.90,  -2.60,   0.12,
05/01 04Z,  -0.70,  -1.06,  99.90,  -1.64,   0.12,
05/01 05Z,  -0.70,  -0.15,  99.90,  -0.73,   0.12,
05/01 06Z,  -0.80,   0.60,  99.90,  -0.08,   0.12,
05/01 07Z,  -0.80,   1.13,  99.90,   0.45,   0.12,
05/01 08Z,  -0.80,   1.45,  99.90,   0.77,   0.12,
05/01 09Z,  -0.80,   1.60,  99.90,   0.92,   0.12,
05/01 10Z,  -0.80,   1.63,  99.90,   0.96,   0.12,
05/01 11Z,  -0.80,   1.64,  99.90,   0.97,   0.12,
05/01 12Z,  -0.80,   1.68,  99.90,   1.01,   0.12,