EXTRA-TROPICAL  STORM  SURGE
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Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
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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
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
#North Spit, CA : 08/19/2026 14:22:02 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/17 18Z,   0.40,   2.30,   3.22,  99.90,   0.52,
08/17 19Z,   0.40,   3.43,   4.26,  99.90,   0.43,
08/17 20Z,   0.30,   4.67,   5.43,  99.90,   0.46,
08/17 21Z,   0.40,   5.78,   6.57,  99.90,   0.39,
08/17 22Z,   0.40,   6.55,   7.39,  99.90,   0.44,
08/17 23Z,   0.40,   6.77,   7.67,  99.90,   0.50,  (max)
08/18 00Z,   0.50,   6.36,   7.22,  99.90,   0.36,
08/18 01Z,   0.50,   5.38,   6.15,  99.90,   0.27,
08/18 02Z,   0.50,   4.09,   4.88,  99.90,   0.29,
08/18 03Z,   0.50,   2.76,   3.71,  99.90,   0.45,
08/18 04Z,   0.50,   1.67,   2.65,  99.90,   0.48,
08/18 05Z,   0.40,   1.10,   1.97,  99.90,   0.47,
08/18 06Z,   0.40,   1.16,   1.92,  99.90,   0.36,  (min)
08/18 07Z,   0.40,   1.78,   2.58,  99.90,   0.40,
08/18 08Z,   0.40,   2.68,   3.48,  99.90,   0.40,
08/18 09Z,   0.50,   3.64,   4.37,  99.90,   0.23,
08/18 10Z,   0.50,   4.47,   5.14,  99.90,   0.17,
08/18 11Z,   0.50,   4.96,   5.63,  99.90,   0.17,
08/18 12Z,   0.40,   4.98,   5.71,  99.90,   0.33,  (max)
08/18 13Z,   0.40,   4.54,   5.26,  99.90,   0.32,
08/18 14Z,   0.40,   3.83,   4.53,  99.90,   0.30,
08/18 15Z,   0.30,   3.07,   3.70,  99.90,   0.33,
08/18 16Z,   0.30,   2.47,   3.12,  99.90,   0.35,
08/18 17Z,   0.30,   2.24,   2.93,  99.90,   0.39,  (min)
08/18 18Z,   0.20,   2.52,   3.25,  99.90,   0.53,
08/18 19Z,   0.20,   3.26,   3.98,  99.90,   0.52,
08/18 20Z,   0.20,   4.26,   4.94,  99.90,   0.48,
08/18 21Z,   0.30,   5.26,   5.95,  99.90,   0.39,
08/18 22Z,   0.30,   6.10,   6.79,  99.90,   0.39,
08/18 23Z,   0.30,   6.59,   7.37,  99.90,   0.48,  (max)
08/19 00Z,   0.30,   6.58,   7.36,  99.90,   0.48,
08/19 01Z,   0.30,   6.01,   6.73,  99.90,   0.42,
08/19 02Z,   0.30,   5.00,   5.71,  99.90,   0.41,
08/19 03Z,   0.30,   3.78,   4.54,  99.90,   0.46,
08/19 04Z,   0.30,   2.57,   3.46,  99.90,   0.59,
08/19 05Z,   0.30,   1.61,   2.50,  99.90,   0.59,
08/19 06Z,   0.40,   1.12,   1.93,  99.90,   0.41,  (min)
08/19 07Z,   0.40,   1.19,   2.03,  99.90,   0.44,
08/19 08Z,   0.40,   1.72,   2.52,  99.90,   0.40,
08/19 09Z,   0.40,   2.48,   3.22,  99.90,   0.34,
08/19 10Z,   0.40,   3.29,   4.07,  99.90,   0.38,
08/19 11Z,   0.50,   4.01,   4.70,  99.90,   0.19,
08/19 12Z,   0.50,   4.46,   5.11,  99.90,   0.15,
08/19 13Z,   0.50,   4.53,   5.24,  99.90,   0.21,  (max)
08/19 14Z,   0.50,   4.27,   4.98,  99.90,   0.21,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/19 15Z,   0.50,   3.82,  99.90,   4.55,   0.23,
08/19 16Z,   0.50,   3.35,  99.90,   4.10,   0.25,
08/19 17Z,   0.40,   3.02,  99.90,   3.68,   0.26,
08/19 18Z,   0.40,   2.97,  99.90,   3.65,   0.28,  (min)
08/19 19Z,   0.40,   3.31,  99.90,   4.01,   0.30,
08/19 20Z,   0.40,   3.98,  99.90,   4.69,   0.31,
08/19 21Z,   0.40,   4.79,  99.90,   5.52,   0.33,
08/19 22Z,   0.50,   5.57,  99.90,   6.41,   0.35,
08/19 23Z,   0.50,   6.18,  99.90,   7.04,   0.36,
08/20 00Z,   0.50,   6.48,  99.90,   7.36,   0.38,  (max)
08/20 01Z,   0.50,   6.33,  99.90,   7.22,   0.40,
08/20 02Z,   0.50,   5.70,  99.90,   6.61,   0.41,
08/20 03Z,   0.50,   4.73,  99.90,   5.64,   0.41,
08/20 04Z,   0.40,   3.60,  99.90,   4.41,   0.41,
08/20 05Z,   0.40,   2.50,  99.90,   3.31,   0.41,
08/20 06Z,   0.40,   1.62,  99.90,   2.43,   0.41,
08/20 07Z,   0.40,   1.15,  99.90,   1.96,   0.41,  (min)
08/20 08Z,   0.50,   1.18,  99.90,   2.09,   0.41,
08/20 09Z,   0.50,   1.59,  99.90,   2.51,   0.41,
08/20 10Z,   0.40,   2.23,  99.90,   3.04,   0.41,
08/20 11Z,   0.40,   2.95,  99.90,   3.77,   0.41,
08/20 12Z,   0.50,   3.63,  99.90,   4.55,   0.41,
08/20 13Z,   0.50,   4.12,  99.90,   5.03,   0.41,
08/20 14Z,   0.50,   4.30,  99.90,   5.21,   0.41,  (max)
08/20 15Z,   0.50,   4.21,  99.90,   5.13,   0.41,
08/20 16Z,   0.40,   3.99,  99.90,   4.80,   0.41,
08/20 17Z,   0.40,   3.73,  99.90,   4.54,   0.41,
08/20 18Z,   0.50,   3.54,  99.90,   4.45,   0.41,  (min)
08/20 19Z,   0.50,   3.55,  99.90,   4.46,   0.41,
08/20 20Z,   0.40,   3.84,  99.90,   4.66,   0.41,
08/20 21Z,   0.40,   4.39,  99.90,   5.20,   0.41,
08/20 22Z,   0.50,   5.03,  99.90,   5.94,   0.41,
08/20 23Z,   0.50,   5.64,  99.90,   6.55,   0.41,
08/21 00Z,   0.50,   6.12,  99.90,   7.03,   0.41,
08/21 01Z,   0.50,   6.32,  99.90,   7.23,   0.41,  (max)
08/21 02Z,   0.50,   6.12,  99.90,   7.04,   0.41,
08/21 03Z,   0.50,   5.51,  99.90,   6.42,   0.41,
08/21 04Z,   0.50,   4.59,  99.90,   5.50,   0.41,
08/21 05Z,   0.50,   3.53,  99.90,   4.44,   0.41,
08/21 06Z,   0.40,   2.47,  99.90,   3.29,   0.41,
08/21 07Z,   0.40,   1.61,  99.90,   2.42,   0.41,
08/21 08Z,   0.50,   1.11,  99.90,   2.02,   0.41,
08/21 09Z,   0.50,   1.07,  99.90,   1.98,   0.41,  (min)
08/21 10Z,   0.40,   1.40,  99.90,   2.22,   0.41,
08/21 11Z,   0.50,   1.98,  99.90,   2.89,   0.41,
08/21 12Z,   0.50,   2.69,  99.90,   3.60,   0.41,
08/21 13Z,   0.50,   3.41,  99.90,   4.32,   0.41,
08/21 14Z,   0.50,   3.97,  99.90,   4.88,   0.41,
08/21 15Z,   0.50,   4.27,  99.90,   5.18,   0.41,  (max)
08/21 16Z,   0.40,   4.34,  99.90,   5.15,   0.41,
08/21 17Z,   0.40,   4.25,  99.90,   5.06,   0.41,
08/21 18Z,   0.40,   4.08,  99.90,   4.89,   0.41,
08/21 19Z,   0.40,   3.91,  99.90,   4.72,   0.41,
08/21 20Z,   0.40,   3.87,  99.90,   4.69,   0.41,  (min)
08/21 21Z,   0.40,   4.08,  99.90,   4.89,   0.41,
08/21 22Z,   0.50,   4.51,  99.90,   5.43,   0.41,
08/21 23Z,   0.40,   5.05,  99.90,   5.87,   0.41,
08/22 00Z,   0.40,   5.59,  99.90,   6.41,   0.41,
08/22 01Z,   0.50,   6.04,  99.90,   6.95,   0.41,
08/22 02Z,   0.40,   6.23,  99.90,   7.04,   0.41,  (max)
08/22 03Z,   0.40,   6.04,  99.90,   6.85,   0.41,
08/22 04Z,   0.40,   5.45,  99.90,   6.26,   0.41,
08/22 05Z,   0.40,   4.56,  99.90,   5.37,   0.41,
08/22 06Z,   0.40,   3.50,  99.90,   4.31,   0.41,
08/22 07Z,   0.30,   2.42,  99.90,   3.13,   0.41,
08/22 08Z,   0.40,   1.50,  99.90,   2.31,   0.41,
08/22 09Z,   0.40,   0.95,  99.90,   1.76,   0.41,
08/22 10Z,   0.30,   0.87,  99.90,   1.58,   0.41,  (min)
08/22 11Z,   0.40,   1.18,  99.90,   1.99,   0.41,
08/22 12Z,   0.40,   1.78,  99.90,   2.59,   0.41,
08/22 13Z,   0.40,   2.56,  99.90,   3.37,   0.41,
08/22 14Z,   0.40,   3.37,  99.90,   4.18,   0.41,
08/22 15Z,   0.40,   4.03,  99.90,   4.84,   0.41,
08/22 16Z,   0.30,   4.42,  99.90,   5.13,   0.41,
08/22 17Z,   0.30,   4.56,  99.90,   5.27,   0.41,  (max)
08/22 18Z,   0.30,   4.50,  99.90,   5.21,   0.41,
08/22 19Z,   0.30,   4.29,  99.90,   5.01,   0.41,
08/22 20Z,   0.30,   4.05,  99.90,   4.76,   0.41,
08/22 21Z,   0.30,   3.92,  99.90,   4.64,   0.41,  (min)
08/22 22Z,   0.40,   4.06,  99.90,   4.87,   0.41,
08/22 23Z,   0.30,   4.45,  99.90,   5.16,   0.41,
08/23 00Z,   0.30,   4.98,  99.90,   5.69,   0.41,
08/23 01Z,   0.40,   5.55,  99.90,   6.36,   0.41,
08/23 02Z,   0.40,   6.04,  99.90,   6.85,   0.41,
08/23 03Z,   0.40,   6.27,  99.90,   7.08,   0.41,  (max)
08/23 04Z,   0.40,   6.09,  99.90,   6.90,   0.41,
08/23 05Z,   0.40,   5.48,  99.90,   6.29,   0.41,
08/23 06Z,   0.40,   4.55,  99.90,   5.36,   0.41,