EXTRA-TROPICAL  STORM  SURGE
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Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
Mid-Atlantic
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Alaska
Gulf of Alaska
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Cherry Point, WA
Friday Harbor WA
Port Townsend
Seattle, WA
Port Angeles, WA
Neah Bay, WA
Toke Point, WA
Astoria, OR
South Beach, OR
Charleston, OR
Port Orford, OR
Crescent City, CA
North Spit, CA
Arena Cove, CA
Point Reyes, CA
Port Chicago, CA
San Francisco CA
Surge List
West Coast
#Seattle, WA : 02/09/2026 14:22:30 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
02/07 18Z,   0.70,  10.51,  11.18,  99.90,  -0.03,
02/07 19Z,   0.70,   8.72,   9.53,  99.90,   0.11,
02/07 20Z,   0.70,   6.56,   7.28,  99.90,   0.02,
02/07 21Z,   0.70,   4.43,   5.12,  99.90,  -0.01,
02/07 22Z,   0.70,   2.86,   3.56,  99.90,   0.00,
02/07 23Z,   0.70,   2.24,   2.96,  99.90,   0.02,  (min)
02/08 00Z,   0.80,   2.61,   3.33,  99.90,  -0.08,
02/08 01Z,   0.80,   3.72,   4.31,  99.90,  -0.21,
02/08 02Z,   0.80,   5.25,   5.72,  99.90,  -0.33,
02/08 03Z,   0.80,   6.83,   7.22,  99.90,  -0.41,
02/08 04Z,   0.80,   8.08,   8.47,  99.90,  -0.41,
02/08 05Z,   0.80,   8.70,   9.14,  99.90,  -0.36,  (max)
02/08 06Z,   0.90,   8.65,   9.05,  99.90,  -0.50,
02/08 07Z,   0.90,   8.12,   8.54,  99.90,  -0.48,
02/08 08Z,   0.90,   7.29,   7.79,  99.90,  -0.40,
02/08 09Z,   0.80,   6.41,   6.90,  99.90,  -0.31,
02/08 10Z,   0.80,   5.79,   6.17,  99.90,  -0.42,
02/08 11Z,   0.80,   5.75,   6.04,  99.90,  -0.51,  (min)
02/08 12Z,   0.70,   6.36,   6.57,  99.90,  -0.49,
02/08 13Z,   0.70,   7.47,   7.64,  99.90,  -0.53,
02/08 14Z,   0.70,   8.80,   9.01,  99.90,  -0.49,
02/08 15Z,   0.70,  10.10,  10.36,  99.90,  -0.44,
02/08 16Z,   0.60,  11.05,  11.32,  99.90,  -0.33,
02/08 17Z,   0.60,  11.32,  11.61,  99.90,  -0.31,  (max)
02/08 18Z,   0.50,  10.73,  11.07,  99.90,  -0.16,
02/08 19Z,   0.50,   9.39,   9.88,  99.90,  -0.01,
02/08 20Z,   0.50,   7.53,   8.06,  99.90,   0.03,
02/08 21Z,   0.50,   5.44,   5.82,  99.90,  -0.12,
02/08 22Z,   0.50,   3.51,   3.88,  99.90,  -0.13,
02/08 23Z,   0.50,   2.22,   2.66,  99.90,  -0.06,
02/09 00Z,   0.50,   1.85,   2.33,  99.90,  -0.02,  (min)
02/09 01Z,   0.50,   2.36,   2.83,  99.90,  -0.03,
02/09 02Z,   0.50,   3.51,   3.81,  99.90,  -0.20,
02/09 03Z,   0.50,   5.01,   5.21,  99.90,  -0.30,
02/09 04Z,   0.50,   6.55,   6.76,  99.90,  -0.29,
02/09 05Z,   0.50,   7.79,   7.99,  99.90,  -0.30,
02/09 06Z,   0.50,   8.49,   8.73,  99.90,  -0.26,
02/09 07Z,   0.50,   8.67,   8.95,  99.90,  -0.22,  (max)
02/09 08Z,   0.50,   8.48,   8.78,  99.90,  -0.20,
02/09 09Z,   0.50,   8.07,   8.43,  99.90,  -0.14,
02/09 10Z,   0.50,   7.59,   7.93,  99.90,  -0.16,
02/09 11Z,   0.50,   7.25,   7.56,  99.90,  -0.19,  (min)
02/09 12Z,   0.50,   7.29,   7.62,  99.90,  -0.17,
02/09 13Z,   0.50,   7.74,   8.07,  99.90,  -0.17,
02/09 14Z,   0.50,   8.47,   8.86,  99.90,  -0.11,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
02/09 15Z,   0.50,   9.33,  99.90,   9.71,  -0.12,
02/09 16Z,   0.50,  10.15,  99.90,  10.52,  -0.13,
02/09 17Z,   0.50,  10.67,  99.90,  11.03,  -0.14,  (max)
02/09 18Z,   0.50,  10.59,  99.90,  10.95,  -0.15,
02/09 19Z,   0.50,   9.80,  99.90,  10.15,  -0.15,
02/09 20Z,   0.50,   8.39,  99.90,   8.73,  -0.16,
02/09 21Z,   0.50,   6.59,  99.90,   6.92,  -0.17,
02/09 22Z,   0.50,   4.64,  99.90,   4.96,  -0.18,
02/09 23Z,   0.50,   2.92,  99.90,   3.23,  -0.19,
02/10 00Z,   0.40,   1.83,  99.90,   2.04,  -0.19,
02/10 01Z,   0.40,   1.60,  99.90,   1.80,  -0.20,  (min)
02/10 02Z,   0.40,   2.16,  99.90,   2.36,  -0.21,
02/10 03Z,   0.40,   3.31,  99.90,   3.50,  -0.21,
02/10 04Z,   0.40,   4.79,  99.90,   4.98,  -0.21,
02/10 05Z,   0.50,   6.33,  99.90,   6.63,  -0.21,
02/10 06Z,   0.50,   7.63,  99.90,   7.93,  -0.21,
02/10 07Z,   0.40,   8.49,  99.90,   8.68,  -0.21,
02/10 08Z,   0.40,   8.94,  99.90,   9.13,  -0.21,
02/10 09Z,   0.40,   9.08,  99.90,   9.27,  -0.21,  (max)
02/10 10Z,   0.40,   8.99,  99.90,   9.18,  -0.21,
02/10 11Z,   0.40,   8.73,  99.90,   8.92,  -0.21,
02/10 12Z,   0.40,   8.48,  99.90,   8.67,  -0.21,
02/10 13Z,   0.40,   8.41,  99.90,   8.60,  -0.21,  (min)
02/10 14Z,   0.50,   8.57,  99.90,   8.86,  -0.21,
02/10 15Z,   0.50,   8.90,  99.90,   9.19,  -0.21,
02/10 16Z,   0.50,   9.35,  99.90,   9.64,  -0.21,
02/10 17Z,   0.50,   9.83,  99.90,  10.12,  -0.21,
02/10 18Z,   0.50,  10.10,  99.90,  10.39,  -0.21,  (max)
02/10 19Z,   0.50,   9.88,  99.90,  10.17,  -0.21,
02/10 20Z,   0.50,   9.04,  99.90,   9.33,  -0.21,
02/10 21Z,   0.50,   7.68,  99.90,   7.97,  -0.21,
02/10 22Z,   0.50,   5.97,  99.90,   6.26,  -0.21,
02/10 23Z,   0.50,   4.14,  99.90,   4.43,  -0.21,
02/11 00Z,   0.50,   2.53,  99.90,   2.82,  -0.21,
02/11 01Z,   0.50,   1.54,  99.90,   1.83,  -0.21,
02/11 02Z,   0.50,   1.36,  99.90,   1.65,  -0.21,  (min)
02/11 03Z,   0.50,   1.94,  99.90,   2.23,  -0.21,
02/11 04Z,   0.50,   3.09,  99.90,   3.38,  -0.21,
02/11 05Z,   0.60,   4.61,  99.90,   5.00,  -0.21,
02/11 06Z,   0.60,   6.24,  99.90,   6.63,  -0.21,
02/11 07Z,   0.60,   7.67,  99.90,   8.07,  -0.21,
02/11 08Z,   0.60,   8.73,  99.90,   9.12,  -0.21,
02/11 09Z,   0.60,   9.41,  99.90,   9.80,  -0.21,
02/11 10Z,   0.50,   9.79,  99.90,  10.08,  -0.21,
02/11 11Z,   0.50,   9.86,  99.90,  10.15,  -0.21,  (max)
02/11 12Z,   0.50,   9.63,  99.90,   9.92,  -0.21,
02/11 13Z,   0.50,   9.28,  99.90,   9.57,  -0.21,
02/11 14Z,   0.50,   8.97,  99.90,   9.27,  -0.21,
02/11 15Z,   0.50,   8.82,  99.90,   9.11,  -0.21,  (min)
02/11 16Z,   0.50,   8.84,  99.90,   9.13,  -0.21,
02/11 17Z,   0.50,   9.07,  99.90,   9.36,  -0.21,
02/11 18Z,   0.50,   9.41,  99.90,   9.70,  -0.21,
02/11 19Z,   0.50,   9.61,  99.90,   9.90,  -0.21,  (max)
02/11 20Z,   0.50,   9.37,  99.90,   9.66,  -0.21,
02/11 21Z,   0.50,   8.57,  99.90,   8.86,  -0.21,
02/11 22Z,   0.50,   7.27,  99.90,   7.56,  -0.21,
02/11 23Z,   0.50,   5.61,  99.90,   5.90,  -0.21,
02/12 00Z,   0.50,   3.79,  99.90,   4.08,  -0.21,
02/12 01Z,   0.50,   2.19,  99.90,   2.48,  -0.21,
02/12 02Z,   0.50,   1.21,  99.90,   1.50,  -0.21,
02/12 03Z,   0.50,   1.04,  99.90,   1.33,  -0.21,  (min)
02/12 04Z,   0.50,   1.65,  99.90,   1.94,  -0.21,
02/12 05Z,   0.50,   2.89,  99.90,   3.18,  -0.21,
02/12 06Z,   0.50,   4.55,  99.90,   4.84,  -0.21,
02/12 07Z,   0.50,   6.35,  99.90,   6.64,  -0.21,
02/12 08Z,   0.50,   7.95,  99.90,   8.24,  -0.21,
02/12 09Z,   0.50,   9.18,  99.90,   9.47,  -0.21,
02/12 10Z,   0.50,  10.02,  99.90,  10.31,  -0.21,
02/12 11Z,   0.50,  10.48,  99.90,  10.77,  -0.21,
02/12 12Z,   0.50,  10.51,  99.90,  10.80,  -0.21,  (max)
02/12 13Z,   0.50,  10.13,  99.90,  10.42,  -0.21,
02/12 14Z,   0.50,   9.55,  99.90,   9.84,  -0.21,
02/12 15Z,   0.50,   9.00,  99.90,   9.29,  -0.21,
02/12 16Z,   0.50,   8.63,  99.90,   8.92,  -0.21,
02/12 17Z,   0.40,   8.53,  99.90,   8.72,  -0.21,  (min)
02/12 18Z,   0.40,   8.72,  99.90,   8.91,  -0.21,
02/12 19Z,   0.40,   9.11,  99.90,   9.30,  -0.21,
02/12 20Z,   0.40,   9.36,  99.90,   9.55,  -0.21,  (max)
02/12 21Z,   0.40,   9.17,  99.90,   9.36,  -0.21,
02/12 22Z,   0.40,   8.39,  99.90,   8.58,  -0.21,
02/12 23Z,   0.40,   7.07,  99.90,   7.26,  -0.21,
02/13 00Z,   0.40,   5.33,  99.90,   5.52,  -0.21,
02/13 01Z,   0.40,   3.41,  99.90,   3.61,  -0.21,
02/13 02Z,   0.40,   1.74,  99.90,   1.93,  -0.21,
02/13 03Z,   0.40,   0.73,  99.90,   0.92,  -0.21,
02/13 04Z,   0.40,   0.63,  99.90,   0.82,  -0.21,  (min)
02/13 05Z,   0.40,   1.38,  99.90,   1.57,  -0.21,
02/13 06Z,   0.40,   2.82,  99.90,   3.01,  -0.21,