EXTRA-TROPICAL  STORM  SURGE
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hat-on
mhhw-on
msl-on
mllw-on
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Alaska
Gulf of Alaska
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Cherry Point, WA
Friday Harbor WA
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Seattle, WA
Port Angeles, WA
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Toke Point, WA
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Port Orford, OR
Crescent City, CA
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Arena Cove, CA
Point Reyes, CA
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Surge List
West Coast
#Port Townsend, WA : 04/20/2026 22:21:05 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/19 06Z,   0.50,   5.72,   6.03,  99.90,  -0.19,
04/19 07Z,   0.50,   5.69,   6.12,  99.90,  -0.07,  (min)
04/19 08Z,   0.50,   6.22,   6.72,  99.90,  -0.00,
04/19 09Z,   0.50,   7.00,   7.39,  99.90,  -0.11,
04/19 10Z,   0.50,   7.75,   8.19,  99.90,  -0.06,
04/19 11Z,   0.50,   8.38,   8.84,  99.90,  -0.04,
04/19 12Z,   0.40,   8.70,   9.30,  99.90,   0.20,  (max)
04/19 13Z,   0.50,   8.39,   8.85,  99.90,  -0.04,
04/19 14Z,   0.50,   7.19,   7.68,  99.90,  -0.01,
04/19 15Z,   0.50,   5.13,   5.47,  99.90,  -0.16,
04/19 16Z,   0.50,   2.57,   2.83,  99.90,  -0.24,
04/19 17Z,   0.50,   0.07,   0.26,  99.90,  -0.31,
04/19 18Z,   0.50,  -1.73,  -1.39,  99.90,  -0.16,
04/19 19Z,   0.50,  -2.37,  -1.96,  99.90,  -0.09,  (min)
04/19 20Z,   0.50,  -1.80,  -1.40,  99.90,  -0.10,
04/19 21Z,   0.50,  -0.39,  -0.03,  99.90,  -0.14,
04/19 22Z,   0.50,   1.43,   1.36,  99.90,  -0.57,
04/19 23Z,   0.50,   3.42,   3.39,  99.90,  -0.53,
04/20 00Z,   0.60,   5.43,   5.58,  99.90,  -0.45,
04/20 01Z,   0.60,   7.19,   7.37,  99.90,  -0.42,
04/20 02Z,   0.70,   8.38,   8.45,  99.90,  -0.63,
04/20 03Z,   0.60,   8.79,   8.81,  99.90,  -0.58,
04/20 04Z,   0.60,   8.49,   8.87,  99.90,  -0.22,  (max)
04/20 05Z,   0.60,   7.72,   8.21,  99.90,  -0.11,
04/20 06Z,   0.60,   6.89,   7.42,  99.90,  -0.07,
04/20 07Z,   0.50,   6.40,   6.83,  99.90,  -0.07,  (min)
04/20 08Z,   0.50,   6.47,   7.10,  99.90,   0.13,
04/20 09Z,   0.60,   6.96,   7.53,  99.90,  -0.03,
04/20 10Z,   0.50,   7.58,   8.18,  99.90,   0.10,
04/20 11Z,   0.50,   8.13,   8.72,  99.90,   0.09,
04/20 12Z,   0.50,   8.52,   9.11,  99.90,   0.09,
04/20 13Z,   0.60,   8.58,   9.29,  99.90,   0.11,  (max)
04/20 14Z,   0.60,   7.97,   8.60,  99.90,   0.03,
04/20 15Z,   0.50,   6.50,   7.12,  99.90,   0.12,
04/20 16Z,   0.50,   4.27,   4.74,  99.90,  -0.03,
04/20 17Z,   0.60,   1.71,   2.00,  99.90,  -0.31,
04/20 18Z,   0.60,  -0.64,  -0.20,  99.90,  -0.16,
04/20 19Z,   0.60,  -2.17,  -1.65,  99.90,  -0.08,
04/20 20Z,   0.50,  -2.54,  -2.02,  99.90,   0.02,  (min)
04/20 21Z,   0.50,  -1.78,  -1.19,  99.90,   0.09,
04/20 22Z,   0.60,  -0.30,   0.21,  99.90,  -0.09,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/20 23Z,   0.60,   1.52,  99.90,   2.02,  -0.10,
04/21 00Z,   0.60,   3.51,  99.90,   4.00,  -0.11,
04/21 01Z,   0.60,   5.51,  99.90,   5.98,  -0.12,
04/21 02Z,   0.60,   7.24,  99.90,   7.71,  -0.13,
04/21 03Z,   0.70,   8.40,  99.90,   8.95,  -0.14,
04/21 04Z,   0.60,   8.82,  99.90,   9.26,  -0.15,  (max)
04/21 05Z,   0.60,   8.59,  99.90,   9.03,  -0.16,
04/21 06Z,   0.60,   7.96,  99.90,   8.39,  -0.17,
04/21 07Z,   0.60,   7.28,  99.90,   7.69,  -0.18,
04/21 08Z,   0.70,   6.89,  99.90,   7.40,  -0.19,  (min)
04/21 09Z,   0.70,   6.97,  99.90,   7.46,  -0.20,
04/21 10Z,   0.60,   7.34,  99.90,   7.73,  -0.21,
04/21 11Z,   0.70,   7.78,  99.90,   8.26,  -0.21,
04/21 12Z,   0.70,   8.13,  99.90,   8.62,  -0.21,
04/21 13Z,   0.70,   8.34,  99.90,   8.83,  -0.21,  (max)
04/21 14Z,   0.60,   8.22,  99.90,   8.60,  -0.21,
04/21 15Z,   0.70,   7.44,  99.90,   7.92,  -0.21,
04/21 16Z,   0.80,   5.87,  99.90,   6.45,  -0.21,
04/21 17Z,   0.80,   3.68,  99.90,   4.27,  -0.21,
04/21 18Z,   0.70,   1.28,  99.90,   1.77,  -0.21,
04/21 19Z,   0.70,  -0.80,  99.90,  -0.32,  -0.21,
04/21 20Z,   0.70,  -2.08,  99.90,  -1.59,  -0.21,
04/21 21Z,   0.80,  -2.26,  99.90,  -1.68,  -0.21,  (min)
04/21 22Z,   0.70,  -1.46,  99.90,  -0.98,  -0.21,
04/21 23Z,   0.70,  -0.05,  99.90,   0.43,  -0.21,
04/22 00Z,   0.80,   1.67,  99.90,   2.25,  -0.21,
04/22 01Z,   0.80,   3.56,  99.90,   4.14,  -0.21,
04/22 02Z,   0.80,   5.48,  99.90,   6.07,  -0.21,
04/22 03Z,   0.80,   7.15,  99.90,   7.74,  -0.21,
04/22 04Z,   0.80,   8.27,  99.90,   8.86,  -0.21,
04/22 05Z,   0.80,   8.73,  99.90,   9.31,  -0.21,  (max)
04/22 06Z,   0.80,   8.60,  99.90,   9.19,  -0.21,
04/22 07Z,   0.80,   8.09,  99.90,   8.68,  -0.21,
04/22 08Z,   0.70,   7.50,  99.90,   7.99,  -0.21,
04/22 09Z,   0.80,   7.14,  99.90,   7.73,  -0.21,
04/22 10Z,   0.80,   7.13,  99.90,   7.72,  -0.21,  (min)
04/22 11Z,   0.80,   7.34,  99.90,   7.93,  -0.21,
04/22 12Z,   0.90,   7.58,  99.90,   8.27,  -0.21,
04/22 13Z,   0.80,   7.79,  99.90,   8.38,  -0.21,
04/22 14Z,   0.80,   7.90,  99.90,   8.48,  -0.21,  (max)
04/22 15Z,   0.80,   7.69,  99.90,   8.28,  -0.21,
04/22 16Z,   0.80,   6.89,  99.90,   7.47,  -0.21,
04/22 17Z,   0.80,   5.40,  99.90,   5.98,  -0.21,
04/22 18Z,   0.70,   3.42,  99.90,   3.90,  -0.21,
04/22 19Z,   0.70,   1.31,  99.90,   1.79,  -0.21,
04/22 20Z,   0.70,  -0.50,  99.90,  -0.01,  -0.21,
04/22 21Z,   0.70,  -1.57,  99.90,  -1.08,  -0.21,
04/22 22Z,   0.60,  -1.68,  99.90,  -1.30,  -0.21,  (min)
04/22 23Z,   0.60,  -0.96,  99.90,  -0.57,  -0.21,
04/23 00Z,   0.60,   0.29,  99.90,   0.68,  -0.21,
04/23 01Z,   0.60,   1.84,  99.90,   2.22,  -0.21,
04/23 02Z,   0.60,   3.60,  99.90,   3.98,  -0.21,
04/23 03Z,   0.50,   5.42,  99.90,   5.70,  -0.21,
04/23 04Z,   0.60,   7.01,  99.90,   7.39,  -0.21,
04/23 05Z,   0.60,   8.10,  99.90,   8.49,  -0.21,
04/23 06Z,   0.60,   8.61,  99.90,   8.99,  -0.21,  (max)
04/23 07Z,   0.50,   8.57,  99.90,   8.86,  -0.21,
04/23 08Z,   0.50,   8.13,  99.90,   8.41,  -0.21,
04/23 09Z,   0.50,   7.54,  99.90,   7.83,  -0.21,
04/23 10Z,   0.50,   7.10,  99.90,   7.38,  -0.21,
04/23 11Z,   0.40,   6.93,  99.90,   7.12,  -0.21,  (min)
04/23 12Z,   0.50,   6.96,  99.90,   7.24,  -0.21,
04/23 13Z,   0.50,   7.05,  99.90,   7.33,  -0.21,
04/23 14Z,   0.40,   7.17,  99.90,   7.35,  -0.21,
04/23 15Z,   0.40,   7.25,  99.90,   7.44,  -0.21,  (max)
04/23 16Z,   0.40,   7.07,  99.90,   7.26,  -0.21,
04/23 17Z,   0.40,   6.38,  99.90,   6.57,  -0.21,
04/23 18Z,   0.30,   5.13,  99.90,   5.21,  -0.21,
04/23 19Z,   0.30,   3.47,  99.90,   3.56,  -0.21,
04/23 20Z,   0.40,   1.70,  99.90,   1.88,  -0.21,
04/23 21Z,   0.30,   0.15,  99.90,   0.24,  -0.21,
04/23 22Z,   0.30,  -0.79,  99.90,  -0.71,  -0.21,
04/23 23Z,   0.40,  -0.93,  99.90,  -0.74,  -0.21,  (min)
04/24 00Z,   0.30,  -0.35,  99.90,  -0.26,  -0.21,
04/24 01Z,   0.30,   0.70,  99.90,   0.79,  -0.21,
04/24 02Z,   0.40,   2.07,  99.90,   2.26,  -0.21,
04/24 03Z,   0.40,   3.70,  99.90,   3.88,  -0.21,
04/24 04Z,   0.40,   5.41,  99.90,   5.60,  -0.21,
04/24 05Z,   0.40,   6.93,  99.90,   7.11,  -0.21,
04/24 06Z,   0.40,   8.00,  99.90,   8.19,  -0.21,
04/24 07Z,   0.40,   8.54,  99.90,   8.73,  -0.21,  (max)
04/24 08Z,   0.40,   8.52,  99.90,   8.71,  -0.21,
04/24 09Z,   0.40,   8.04,  99.90,   8.23,  -0.21,
04/24 10Z,   0.40,   7.34,  99.90,   7.53,  -0.21,
04/24 11Z,   0.40,   6.73,  99.90,   6.91,  -0.21,
04/24 12Z,   0.40,   6.37,  99.90,   6.56,  -0.21,
04/24 13Z,  99.90,   6.23,  99.90,  99.90,  -0.21,
04/24 14Z,  99.90,   6.22,  99.90,  99.90,  -0.21,
04/24 15Z,  99.90,   6.34,  99.90,  99.90,  -0.21,
04/24 16Z,  99.90,   6.48,  99.90,  99.90,  -0.21,
04/24 17Z,  99.90,   6.44,  99.90,  99.90,  -0.21,
04/24 18Z,  99.90,   5.98,  99.90,  99.90,  -0.21,