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 : 07/08/2025 16:22:20 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/07 00Z,   0.80,  -1.20,  -0.24,  99.90,   0.16,
07/07 01Z,   0.80,  -1.72,  -0.75,  99.90,   0.17,
07/07 02Z,   0.80,  -2.19,  -1.17,  99.90,   0.22,
07/07 03Z,   0.80,  -2.49,  -1.47,  99.90,   0.22,
07/07 04Z,   0.80,  -2.62,  -1.62,  99.90,   0.20,  (min)
07/07 05Z,   0.90,  -2.54,  -1.52,  99.90,   0.12,
07/07 06Z,   0.80,  -2.12,  -0.95,  99.90,   0.37,
07/07 07Z,   0.90,  -1.43,  -0.15,  99.90,   0.38,
07/07 08Z,   0.90,  -0.77,   0.49,  99.90,   0.36,
07/07 09Z,   0.90,  -0.33,   0.84,  99.90,   0.27,
07/07 10Z,   0.90,  -0.11,   0.89,  99.90,   0.10,  (max)
07/07 11Z,   0.90,  -0.18,   0.67,  99.90,  -0.05,
07/07 12Z,   0.90,  -0.52,   0.22,  99.90,  -0.16,
07/07 13Z,   0.90,  -1.02,  -0.33,  99.90,  -0.21,
07/07 14Z,   0.90,  -1.53,  -0.84,  99.90,  -0.21,
07/07 15Z,   0.90,  -1.98,  -1.25,  99.90,  -0.17,
07/07 16Z,   0.90,  -2.35,  -1.54,  99.90,  -0.09,
07/07 17Z,   0.90,  -2.62,  -1.72,  99.90,  -0.00,  (min)
07/07 18Z,   0.90,  -2.63,  -1.66,  99.90,   0.07,
07/07 19Z,   0.90,  -2.24,  -1.17,  99.90,   0.17,
07/07 20Z,   0.90,  -1.65,  -0.46,  99.90,   0.29,
07/07 21Z,   0.90,  -1.13,   0.09,  99.90,   0.32,
07/07 22Z,   0.90,  -0.76,   0.34,  99.90,   0.20,  (max)
07/07 23Z,   0.90,  -0.63,   0.22,  99.90,  -0.05,
07/08 00Z,   0.90,  -0.82,  -0.18,  99.90,  -0.26,
07/08 01Z,   0.90,  -1.26,  -0.70,  99.90,  -0.34,
07/08 02Z,   0.90,  -1.78,  -1.19,  99.90,  -0.31,
07/08 03Z,   0.90,  -2.23,  -1.62,  99.90,  -0.29,
07/08 04Z,   0.90,  -2.52,  -1.92,  99.90,  -0.30,
07/08 05Z,   0.90,  -2.63,  -2.10,  99.90,  -0.37,
07/08 06Z,   0.90,  -2.51,  -2.11,  99.90,  -0.50,  (min)
07/08 07Z,   0.90,  -2.01,  -1.74,  99.90,  -0.63,
07/08 08Z,   0.80,  -1.27,  -1.08,  99.90,  -0.61,
07/08 09Z,   0.80,  -0.63,  -0.43,  99.90,  -0.60,
07/08 10Z,   0.80,  -0.23,   0.02,  99.90,  -0.55,
07/08 11Z,   0.80,  -0.08,   0.21,  99.90,  -0.51,  (max)
07/08 12Z,   0.80,  -0.23,   0.05,  99.90,  -0.52,
07/08 13Z,   0.80,  -0.63,  -0.42,  99.90,  -0.59,
07/08 14Z,   0.70,  -1.14,  -1.02,  99.90,  -0.58,
07/08 15Z,   0.70,  -1.66,  -1.57,  99.90,  -0.61,
07/08 16Z,   0.70,  -2.11,  -2.04,  99.90,  -0.63,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/08 17Z,   0.70,  -2.47,  99.90,  -2.37,  -0.60,
07/08 18Z,   0.70,  -2.72,  99.90,  -2.57,  -0.56,  (min)
07/08 19Z,   0.70,  -2.64,  99.90,  -2.46,  -0.52,
07/08 20Z,   0.70,  -2.15,  99.90,  -1.93,  -0.48,
07/08 21Z,   0.70,  -1.51,  99.90,  -1.25,  -0.44,
07/08 22Z,   0.60,  -0.99,  99.90,  -0.79,  -0.40,
07/08 23Z,   0.60,  -0.65,  99.90,  -0.41,  -0.36,
07/09 00Z,   0.60,  -0.60,  99.90,  -0.32,  -0.32,  (max)
07/09 01Z,   0.60,  -0.86,  99.90,  -0.55,  -0.28,
07/09 02Z,   0.60,  -1.34,  99.90,  -0.98,  -0.24,
07/09 03Z,   0.60,  -1.86,  99.90,  -1.46,  -0.21,
07/09 04Z,   0.60,  -2.29,  99.90,  -1.86,  -0.17,
07/09 05Z,   0.60,  -2.56,  99.90,  -2.13,  -0.17,
07/09 06Z,   0.50,  -2.65,  99.90,  -2.32,  -0.17,  (min)
07/09 07Z,   0.50,  -2.47,  99.90,  -2.13,  -0.17,
07/09 08Z,   0.50,  -1.88,  99.90,  -1.55,  -0.17,
07/09 09Z,   0.50,  -1.10,  99.90,  -0.77,  -0.17,
07/09 10Z,   0.50,  -0.48,  99.90,  -0.14,  -0.17,
07/09 11Z,   0.50,  -0.13,  99.90,   0.20,  -0.17,
07/09 12Z,   0.50,  -0.07,  99.90,   0.26,  -0.17,  (max)
07/09 13Z,   0.50,  -0.31,  99.90,   0.02,  -0.17,
07/09 14Z,   0.50,  -0.76,  99.90,  -0.43,  -0.17,
07/09 15Z,   0.50,  -1.29,  99.90,  -0.96,  -0.17,
07/09 16Z,   0.50,  -1.81,  99.90,  -1.47,  -0.17,
07/09 17Z,   0.50,  -2.25,  99.90,  -1.92,  -0.17,
07/09 18Z,   0.50,  -2.61,  99.90,  -2.27,  -0.17,
07/09 19Z,   0.50,  -2.80,  99.90,  -2.46,  -0.17,  (min)
07/09 20Z,   0.50,  -2.60,  99.90,  -2.27,  -0.17,
07/09 21Z,   0.50,  -2.00,  99.90,  -1.67,  -0.17,
07/09 22Z,   0.40,  -1.32,  99.90,  -1.09,  -0.17,
07/09 23Z,   0.40,  -0.82,  99.90,  -0.58,  -0.17,
07/10 00Z,   0.40,  -0.55,  99.90,  -0.32,  -0.17,  (max)
07/10 01Z,   0.40,  -0.59,  99.90,  -0.36,  -0.17,
07/10 02Z,   0.40,  -0.93,  99.90,  -0.70,  -0.17,
07/10 03Z,   0.40,  -1.43,  99.90,  -1.20,  -0.17,
07/10 04Z,   0.40,  -1.95,  99.90,  -1.72,  -0.17,
07/10 05Z,   0.40,  -2.37,  99.90,  -2.13,  -0.17,
07/10 06Z,   0.40,  -2.62,  99.90,  -2.39,  -0.17,
07/10 07Z,   0.40,  -2.68,  99.90,  -2.45,  -0.17,  (min)
07/10 08Z,   0.40,  -2.41,  99.90,  -2.17,  -0.17,
07/10 09Z,   0.40,  -1.72,  99.90,  -1.49,  -0.17,
07/10 10Z,   0.40,  -0.90,  99.90,  -0.67,  -0.17,
07/10 11Z,   0.40,  -0.31,  99.90,  -0.08,  -0.17,
07/10 12Z,   0.40,  -0.04,  99.90,   0.19,  -0.17,  (max)
07/10 13Z,   0.40,  -0.08,  99.90,   0.15,  -0.17,
07/10 14Z,   0.40,  -0.42,  99.90,  -0.18,  -0.17,
07/10 15Z,   0.40,  -0.92,  99.90,  -0.69,  -0.17,
07/10 16Z,   0.40,  -1.46,  99.90,  -1.23,  -0.17,
07/10 17Z,   0.30,  -1.98,  99.90,  -1.84,  -0.17,
07/10 18Z,   0.30,  -2.41,  99.90,  -2.28,  -0.17,
07/10 19Z,   0.30,  -2.74,  99.90,  -2.61,  -0.17,
07/10 20Z,   0.30,  -2.84,  99.90,  -2.71,  -0.17,  (min)
07/10 21Z,   0.30,  -2.50,  99.90,  -2.37,  -0.17,
07/10 22Z,   0.30,  -1.79,  99.90,  -1.66,  -0.17,
07/10 23Z,   0.30,  -1.09,  99.90,  -0.96,  -0.17,
07/11 00Z,   0.30,  -0.64,  99.90,  -0.51,  -0.17,
07/11 01Z,   0.30,  -0.47,  99.90,  -0.34,  -0.17,  (max)
07/11 02Z,   0.30,  -0.62,  99.90,  -0.49,  -0.17,
07/11 03Z,   0.30,  -1.03,  99.90,  -0.90,  -0.17,
07/11 04Z,   0.30,  -1.55,  99.90,  -1.42,  -0.17,
07/11 05Z,   0.30,  -2.06,  99.90,  -1.93,  -0.17,
07/11 06Z,   0.30,  -2.46,  99.90,  -2.33,  -0.17,
07/11 07Z,   0.30,  -2.69,  99.90,  -2.55,  -0.17,
07/11 08Z,   0.30,  -2.69,  99.90,  -2.56,  -0.17,  (min)
07/11 09Z,   0.30,  -2.31,  99.90,  -2.18,  -0.17,
07/11 10Z,   0.40,  -1.52,  99.90,  -1.29,  -0.17,
07/11 11Z,   0.40,  -0.68,  99.90,  -0.45,  -0.17,
07/11 12Z,   0.40,  -0.15,  99.90,   0.08,  -0.17,
07/11 13Z,   0.40,   0.02,  99.90,   0.25,  -0.17,  (max)
07/11 14Z,   0.40,  -0.14,  99.90,   0.10,  -0.17,
07/11 15Z,   0.40,  -0.56,  99.90,  -0.32,  -0.17,
07/11 16Z,   0.40,  -1.10,  99.90,  -0.87,  -0.17,
07/11 17Z,   0.40,  -1.66,  99.90,  -1.42,  -0.17,
07/11 18Z,   0.40,  -2.17,  99.90,  -1.93,  -0.17,
07/11 19Z,   0.40,  -2.59,  99.90,  -2.35,  -0.17,
07/11 20Z,   0.40,  -2.86,  99.90,  -2.63,  -0.17,  (min)
07/11 21Z,   0.40,  -2.84,  99.90,  -2.60,  -0.17,
07/11 22Z,   0.40,  -2.33,  99.90,  -2.10,  -0.17,
07/11 23Z,   0.40,  -1.53,  99.90,  -1.30,  -0.17,
07/12 00Z,   0.40,  -0.84,  99.90,  -0.61,  -0.17,
07/12 01Z,   0.40,  -0.47,  99.90,  -0.24,  -0.17,
07/12 02Z,   0.50,  -0.42,  99.90,  -0.09,  -0.17,  (max)
07/12 03Z,   0.50,  -0.68,  99.90,  -0.35,  -0.17,
07/12 04Z,   0.50,  -1.16,  99.90,  -0.82,  -0.17,
07/12 05Z,   0.50,  -1.69,  99.90,  -1.35,  -0.17,
07/12 06Z,   0.50,  -2.18,  99.90,  -1.85,  -0.17,
07/12 07Z,  99.90,  -2.55,  99.90,  99.90,  -0.17,
07/12 08Z,  99.90,  -2.74,  99.90,  99.90,  -0.17,
07/12 09Z,  99.90,  -2.67,  99.90,  99.90,  -0.17,
07/12 10Z,  99.90,  -2.17,  99.90,  99.90,  -0.17,
07/12 11Z,  99.90,  -1.29,  99.90,  99.90,  -0.17,
07/12 12Z,  99.90,  -0.47,  99.90,  99.90,  -0.17,