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.
#Washington, DC : 04/30/2025 14:22:00 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/28 18Z,   0.20,  -3.18,  -3.55,  99.90,  -0.57,
04/28 19Z,   0.20,  -3.68,  -4.01,  99.90,  -0.53,
04/28 20Z,   0.20,  -4.02,  -4.28,  99.90,  -0.46,  (min)
04/28 21Z,   0.20,  -3.97,  -4.18,  99.90,  -0.41,
04/28 22Z,   0.20,  -3.34,  -3.34,  99.90,  -0.20,
04/28 23Z,   0.20,  -2.35,  -2.18,  99.90,  -0.03,
04/29 00Z,   0.30,  -1.50,  -1.34,  99.90,  -0.14,
04/29 01Z,   0.30,  -1.04,  -0.87,  99.90,  -0.13,
04/29 02Z,   0.30,  -1.02,  -0.81,  99.90,  -0.09,  (max)
04/29 03Z,   0.40,  -1.43,  -1.25,  99.90,  -0.22,
04/29 04Z,   0.40,  -2.05,  -1.93,  99.90,  -0.28,
04/29 05Z,   0.40,  -2.69,  -2.59,  99.90,  -0.30,
04/29 06Z,   0.50,  -3.24,  -3.17,  99.90,  -0.43,
04/29 07Z,   0.50,  -3.64,  -3.62,  99.90,  -0.48,
04/29 08Z,   0.50,  -3.85,  -3.93,  99.90,  -0.58,  (min)
04/29 09Z,   0.50,  -3.74,  -3.76,  99.90,  -0.52,
04/29 10Z,   0.50,  -3.10,  -2.78,  99.90,  -0.18,
04/29 11Z,   0.50,  -2.03,  -1.63,  99.90,  -0.10,
04/29 12Z,   0.60,  -1.00,  -0.80,  99.90,  -0.40,
04/29 13Z,   0.60,  -0.40,  -0.33,  99.90,  -0.53,
04/29 14Z,   0.60,  -0.30,  -0.20,  99.90,  -0.50,  (max)
04/29 15Z,   0.70,  -0.66,  -0.52,  99.90,  -0.56,
04/29 16Z,   0.70,  -1.31,  -1.18,  99.90,  -0.57,
04/29 17Z,   0.70,  -2.01,  -1.92,  99.90,  -0.61,
04/29 18Z,   0.70,  -2.66,  -2.61,  99.90,  -0.65,
04/29 19Z,   0.70,  -3.23,  -3.17,  99.90,  -0.64,
04/29 20Z,   0.80,  -3.72,  -3.56,  99.90,  -0.64,
04/29 21Z,   0.80,  -4.03,  -3.74,  99.90,  -0.51,  (min)
04/29 22Z,   0.80,  -3.92,  -3.57,  99.90,  -0.45,
04/29 23Z,   0.80,  -3.22,  -2.71,  99.90,  -0.29,
04/30 00Z,   0.80,  -2.23,  -1.63,  99.90,  -0.20,
04/30 01Z,   0.80,  -1.44,  -0.86,  99.90,  -0.22,
04/30 02Z,   0.80,  -1.04,  -0.50,  99.90,  -0.26,  (max)
04/30 03Z,   0.80,  -1.09,  -0.57,  99.90,  -0.28,
04/30 04Z,   0.80,  -1.52,  -1.08,  99.90,  -0.36,
04/30 05Z,   0.80,  -2.13,  -1.78,  99.90,  -0.45,
04/30 06Z,   0.80,  -2.74,  -2.45,  99.90,  -0.51,
04/30 07Z,   0.80,  -3.26,  -3.04,  99.90,  -0.58,
04/30 08Z,   0.80,  -3.63,  -3.47,  99.90,  -0.64,
04/30 09Z,   0.70,  -3.81,  -3.79,  99.90,  -0.68,  (min)
04/30 10Z,   0.70,  -3.65,  -3.69,  99.90,  -0.74,
04/30 11Z,   0.70,  -2.94,  -2.69,  99.90,  -0.45,
04/30 12Z,   0.70,  -1.87,  -1.55,  99.90,  -0.38,
04/30 13Z,   0.70,  -0.93,  -0.76,  99.90,  -0.53,
04/30 14Z,   0.70,  -0.44,  -0.39,  99.90,  -0.65,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/30 15Z,   0.70,  -0.42,  99.90,  -0.37,  -0.65,  (max)
04/30 16Z,   0.70,  -0.82,  99.90,  -0.76,  -0.64,
04/30 17Z,   0.60,  -1.45,  99.90,  -1.49,  -0.64,
04/30 18Z,   0.60,  -2.10,  99.90,  -2.14,  -0.64,
04/30 19Z,   0.60,  -2.71,  99.90,  -2.74,  -0.63,
04/30 20Z,   0.60,  -3.25,  99.90,  -3.28,  -0.63,
04/30 21Z,   0.60,  -3.71,  99.90,  -3.74,  -0.63,
04/30 22Z,   0.60,  -3.99,  99.90,  -4.01,  -0.62,  (min)
04/30 23Z,   0.50,  -3.80,  99.90,  -3.92,  -0.62,
05/01 00Z,   0.50,  -3.06,  99.90,  -3.18,  -0.62,
05/01 01Z,   0.50,  -2.12,  99.90,  -2.24,  -0.62,
05/01 02Z,   0.50,  -1.41,  99.90,  -1.52,  -0.61,
05/01 03Z,   0.50,  -1.08,  99.90,  -1.19,  -0.61,  (max)
05/01 04Z,   0.50,  -1.16,  99.90,  -1.27,  -0.61,
05/01 05Z,   0.50,  -1.59,  99.90,  -1.71,  -0.61,
05/01 06Z,   0.50,  -2.18,  99.90,  -2.29,  -0.61,
05/01 07Z,   0.50,  -2.75,  99.90,  -2.86,  -0.61,
05/01 08Z,   0.50,  -3.23,  99.90,  -3.35,  -0.61,
05/01 09Z,   0.40,  -3.58,  99.90,  -3.79,  -0.61,
05/01 10Z,   0.40,  -3.74,  99.90,  -3.95,  -0.61,  (min)
05/01 11Z,   0.40,  -3.54,  99.90,  -3.75,  -0.61,
05/01 12Z,   0.40,  -2.81,  99.90,  -3.02,  -0.61,
05/01 13Z,   0.40,  -1.79,  99.90,  -2.01,  -0.61,
05/01 14Z,   0.40,  -0.97,  99.90,  -1.18,  -0.61,
05/01 15Z,   0.40,  -0.57,  99.90,  -0.79,  -0.61,  (max)
05/01 16Z,   0.40,  -0.60,  99.90,  -0.82,  -0.61,
05/01 17Z,   0.40,  -1.00,  99.90,  -1.21,  -0.61,
05/01 18Z,   0.40,  -1.58,  99.90,  -1.79,  -0.61,
05/01 19Z,   0.40,  -2.17,  99.90,  -2.39,  -0.61,
05/01 20Z,   0.40,  -2.73,  99.90,  -2.94,  -0.61,
05/01 21Z,   0.40,  -3.23,  99.90,  -3.45,  -0.61,
05/01 22Z,   0.40,  -3.67,  99.90,  -3.88,  -0.61,
05/01 23Z,   0.40,  -3.90,  99.90,  -4.11,  -0.61,  (min)
05/02 00Z,   0.40,  -3.65,  99.90,  -3.87,  -0.61,
05/02 01Z,   0.40,  -2.90,  99.90,  -3.12,  -0.61,
05/02 02Z,   0.50,  -2.03,  99.90,  -2.14,  -0.61,
05/02 03Z,   0.50,  -1.40,  99.90,  -1.51,  -0.61,
05/02 04Z,   0.50,  -1.12,  99.90,  -1.24,  -0.61,  (max)
05/02 05Z,   0.50,  -1.23,  99.90,  -1.34,  -0.61,
05/02 06Z,   0.50,  -1.64,  99.90,  -1.75,  -0.61,
05/02 07Z,   0.50,  -2.18,  99.90,  -2.30,  -0.61,
05/02 08Z,   0.50,  -2.72,  99.90,  -2.84,  -0.61,
05/02 09Z,   0.50,  -3.18,  99.90,  -3.30,  -0.61,
05/02 10Z,   0.60,  -3.52,  99.90,  -3.53,  -0.61,
05/02 11Z,   0.60,  -3.66,  99.90,  -3.67,  -0.61,  (min)
05/02 12Z,   0.60,  -3.44,  99.90,  -3.45,  -0.61,
05/02 13Z,   0.60,  -2.72,  99.90,  -2.73,  -0.61,
05/02 14Z,   0.60,  -1.79,  99.90,  -1.80,  -0.61,
05/02 15Z,   0.60,  -1.08,  99.90,  -1.09,  -0.61,
05/02 16Z,   0.60,  -0.75,  99.90,  -0.77,  -0.61,
05/02 17Z,   0.70,  -0.80,  99.90,  -0.71,  -0.61,  (max)
05/02 18Z,   0.70,  -1.16,  99.90,  -1.07,  -0.61,
05/02 19Z,   0.70,  -1.68,  99.90,  -1.59,  -0.61,
05/02 20Z,   0.70,  -2.21,  99.90,  -2.13,  -0.61,
05/02 21Z,   0.70,  -2.73,  99.90,  -2.64,  -0.61,
05/02 22Z,   0.70,  -3.20,  99.90,  -3.11,  -0.61,
05/02 23Z,   0.70,  -3.60,  99.90,  -3.51,  -0.61,
05/03 00Z,   0.70,  -3.79,  99.90,  -3.70,  -0.61,  (min)
05/03 01Z,   0.60,  -3.50,  99.90,  -3.51,  -0.61,
05/03 02Z,   0.60,  -2.77,  99.90,  -2.78,  -0.61,
05/03 03Z,   0.60,  -1.97,  99.90,  -1.99,  -0.61,
05/03 04Z,   0.60,  -1.42,  99.90,  -1.43,  -0.61,
05/03 05Z,   0.60,  -1.17,  99.90,  -1.18,  -0.61,
05/03 06Z,   0.70,  -1.27,  99.90,  -1.18,  -0.61,  (max)
05/03 07Z,   0.70,  -1.66,  99.90,  -1.57,  -0.61,
05/03 08Z,   0.70,  -2.16,  99.90,  -2.08,  -0.61,
05/03 09Z,   0.70,  -2.68,  99.90,  -2.59,  -0.61,
05/03 10Z,   0.70,  -3.12,  99.90,  -3.03,  -0.61,
05/03 11Z,   0.70,  -3.45,  99.90,  -3.36,  -0.61,
05/03 12Z,   0.70,  -3.59,  99.90,  -3.50,  -0.61,  (min)
05/03 13Z,   0.70,  -3.37,  99.90,  -3.28,  -0.61,
05/03 14Z,   0.70,  -2.68,  99.90,  -2.60,  -0.61,
05/03 15Z,   0.80,  -1.85,  99.90,  -1.66,  -0.61,
05/03 16Z,   0.80,  -1.24,  99.90,  -1.05,  -0.61,
05/03 17Z,   0.80,  -0.94,  99.90,  -0.75,  -0.61,  (max)
05/03 18Z,   0.80,  -0.97,  99.90,  -0.78,  -0.61,
05/03 19Z,   0.80,  -1.28,  99.90,  -1.09,  -0.61,
05/03 20Z,   0.70,  -1.74,  99.90,  -1.65,  -0.61,
05/03 21Z,   0.70,  -2.23,  99.90,  -2.14,  -0.61,
05/03 22Z,   0.70,  -2.71,  99.90,  -2.63,  -0.61,
05/03 23Z,   0.70,  -3.16,  99.90,  -3.07,  -0.61,
05/04 00Z,   0.70,  -3.54,  99.90,  -3.45,  -0.61,
05/04 01Z,   0.60,  -3.69,  99.90,  -3.70,  -0.61,  (min)
05/04 02Z,   0.60,  -3.37,  99.90,  -3.38,  -0.61,
05/04 03Z,   0.60,  -2.66,  99.90,  -2.68,  -0.61,
05/04 04Z,   0.60,  -1.94,  99.90,  -1.96,  -0.61,
05/04 05Z,   0.50,  -1.43,  99.90,  -1.54,  -0.61,
05/04 06Z,   0.50,  -1.19,  99.90,  -1.30,  -0.61,