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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Stations
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
#North Spit, CA : 04/17/2026 11:22:04 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/15 12Z,   0.30,   0.75,   1.66,  99.90,   0.61,
04/15 13Z,   0.40,   1.13,   1.99,  99.90,   0.46,  (min)
04/15 14Z,   0.40,   2.09,   2.99,  99.90,   0.50,
04/15 15Z,   0.40,   3.31,   4.15,  99.90,   0.44,
04/15 16Z,   0.40,   4.53,   5.30,  99.90,   0.37,
04/15 17Z,   0.40,   5.46,   6.17,  99.90,   0.31,
04/15 18Z,   0.40,   5.85,   6.66,  99.90,   0.41,  (max)
04/15 19Z,   0.40,   5.57,   6.42,  99.90,   0.45,
04/15 20Z,   0.40,   4.69,   5.56,  99.90,   0.47,
04/15 21Z,   0.40,   3.46,   4.34,  99.90,   0.48,
04/15 22Z,   0.40,   2.18,   3.10,  99.90,   0.52,
04/15 23Z,   0.40,   1.18,   1.96,  99.90,   0.38,
04/16 00Z,   0.40,   0.79,   1.54,  99.90,   0.35,  (min)
04/16 01Z,   0.40,   1.17,   1.88,  99.90,   0.31,
04/16 02Z,   0.40,   2.19,   2.92,  99.90,   0.33,
04/16 03Z,   0.40,   3.56,   4.27,  99.90,   0.31,
04/16 04Z,   0.40,   4.95,   5.64,  99.90,   0.29,
04/16 05Z,   0.30,   6.08,   6.79,  99.90,   0.41,
04/16 06Z,   0.20,   6.68,   7.43,  99.90,   0.55,  (max)
04/16 07Z,   0.20,   6.55,   7.29,  99.90,   0.54,
04/16 08Z,   0.20,   5.68,   6.36,  99.90,   0.48,
04/16 09Z,   0.20,   4.26,   4.93,  99.90,   0.47,
04/16 10Z,   0.10,   2.61,   3.41,  99.90,   0.70,
04/16 11Z,   0.10,   1.10,   1.92,  99.90,   0.72,
04/16 12Z,   0.10,   0.12,   0.82,  99.90,   0.60,
04/16 13Z,   0.10,  -0.06,   0.50,  99.90,   0.46,  (min)
04/16 14Z,   0.10,   0.58,   1.11,  99.90,   0.43,
04/16 15Z,   0.00,   1.81,   2.37,  99.90,   0.56,
04/16 16Z,   0.00,   3.25,   3.71,  99.90,   0.46,
04/16 17Z,   0.00,   4.60,   4.99,  99.90,   0.39,
04/16 18Z,   0.10,   5.58,   5.94,  99.90,   0.26,
04/16 19Z,   0.10,   5.93,   6.30,  99.90,   0.27,  (max)
04/16 20Z,   0.10,   5.55,   6.01,  99.90,   0.36,
04/16 21Z,   0.10,   4.59,   5.12,  99.90,   0.43,
04/16 22Z,   0.10,   3.32,   3.93,  99.90,   0.51,
04/16 23Z,   0.20,   2.11,   2.69,  99.90,   0.38,
04/17 00Z,   0.20,   1.30,   1.78,  99.90,   0.28,
04/17 01Z,   0.20,   1.18,   1.60,  99.90,   0.22,  (min)
04/17 02Z,   0.20,   1.86,   2.29,  99.90,   0.23,
04/17 03Z,   0.20,   3.12,   3.57,  99.90,   0.25,
04/17 04Z,   0.20,   4.60,   5.00,  99.90,   0.20,
04/17 05Z,   0.20,   5.96,   6.32,  99.90,   0.16,
04/17 06Z,   0.20,   6.90,   7.34,  99.90,   0.24,
04/17 07Z,   0.20,   7.19,   7.73,  99.90,   0.34,  (max)
04/17 08Z,   0.20,   6.67,   7.22,  99.90,   0.35,
04/17 09Z,   0.30,   5.38,   6.01,  99.90,   0.33,
04/17 10Z,   0.30,   3.60,   4.34,  99.90,   0.44,
04/17 11Z,   0.30,   1.72,   2.58,  99.90,   0.56,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/17 12Z,   0.40,   0.15,  99.90,   1.10,   0.55,
04/17 13Z,   0.40,  -0.74,  99.90,   0.22,   0.55,  (min)
04/17 14Z,   0.40,  -0.69,  99.90,   0.26,   0.55,
04/17 15Z,   0.40,   0.22,  99.90,   1.17,   0.55,
04/17 16Z,   0.40,   1.67,  99.90,   2.61,   0.54,
04/17 17Z,   0.40,   3.26,  99.90,   4.20,   0.54,
04/17 18Z,   0.40,   4.67,  99.90,   5.61,   0.54,
04/17 19Z,   0.40,   5.62,  99.90,   6.56,   0.54,
04/17 20Z,   0.40,   5.90,  99.90,   6.83,   0.53,  (max)
04/17 21Z,   0.40,   5.44,  99.90,   6.38,   0.53,
04/17 22Z,   0.40,   4.44,  99.90,   5.37,   0.53,
04/17 23Z,   0.50,   3.22,  99.90,   4.25,   0.53,
04/18 00Z,   0.40,   2.15,  99.90,   3.08,   0.53,
04/18 01Z,   0.50,   1.58,  99.90,   2.60,   0.53,  (min)
04/18 02Z,   0.40,   1.75,  99.90,   2.68,   0.53,
04/18 03Z,   0.40,   2.68,  99.90,   3.61,   0.53,
04/18 04Z,   0.50,   4.08,  99.90,   5.11,   0.53,
04/18 05Z,   0.40,   5.57,  99.90,   6.50,   0.53,
04/18 06Z,   0.40,   6.79,  99.90,   7.71,   0.53,
04/18 07Z,   0.40,   7.48,  99.90,   8.41,   0.53,
04/18 08Z,   0.50,   7.43,  99.90,   8.46,   0.53,  (max)
04/18 09Z,   0.50,   6.53,  99.90,   7.56,   0.53,
04/18 10Z,   0.40,   4.90,  99.90,   5.83,   0.53,
04/18 11Z,   0.50,   2.89,  99.90,   3.91,   0.53,
04/18 12Z,   0.60,   0.90,  99.90,   2.03,   0.53,
04/18 13Z,   0.60,  -0.63,  99.90,   0.50,   0.53,
04/18 14Z,   0.50,  -1.34,  99.90,  -0.31,   0.53,  (min)
04/18 15Z,   0.60,  -1.05,  99.90,   0.07,   0.53,
04/18 16Z,   0.60,   0.07,  99.90,   1.20,   0.53,
04/18 17Z,   0.50,   1.64,  99.90,   2.67,   0.53,
04/18 18Z,   0.60,   3.28,  99.90,   4.41,   0.53,
04/18 19Z,   0.60,   4.68,  99.90,   5.81,   0.53,
04/18 20Z,   0.50,   5.57,  99.90,   6.60,   0.53,
04/18 21Z,   0.60,   5.76,  99.90,   6.89,   0.53,  (max)
04/18 22Z,   0.60,   5.26,  99.90,   6.39,   0.53,
04/18 23Z,   0.60,   4.28,  99.90,   5.41,   0.53,
04/19 00Z,   0.60,   3.18,  99.90,   4.31,   0.53,
04/19 01Z,   0.60,   2.30,  99.90,   3.43,   0.53,
04/19 02Z,   0.70,   1.98,  99.90,   3.21,   0.53,  (min)
04/19 03Z,   0.70,   2.40,  99.90,   3.63,   0.53,
04/19 04Z,   0.70,   3.49,  99.90,   4.72,   0.53,
04/19 05Z,   0.60,   4.93,  99.90,   6.06,   0.53,
04/19 06Z,   0.70,   6.31,  99.90,   7.54,   0.53,
04/19 07Z,   0.70,   7.33,  99.90,   8.56,   0.53,
04/19 08Z,   0.70,   7.76,  99.90,   8.98,   0.53,  (max)
04/19 09Z,   0.80,   7.40,  99.90,   8.72,   0.53,
04/19 10Z,   0.70,   6.20,  99.90,   7.43,   0.53,
04/19 11Z,   0.80,   4.36,  99.90,   5.69,   0.53,
04/19 12Z,   0.80,   2.25,  99.90,   3.58,   0.53,
04/19 13Z,   0.80,   0.28,  99.90,   1.61,   0.53,
04/19 14Z,   0.80,  -1.11,  99.90,   0.21,   0.53,
04/19 15Z,   0.80,  -1.62,  99.90,  -0.30,   0.53,  (min)
04/19 16Z,   0.80,  -1.15,  99.90,   0.18,   0.53,
04/19 17Z,   0.70,   0.08,  99.90,   1.31,   0.53,
04/19 18Z,   0.80,   1.68,  99.90,   3.01,   0.53,
04/19 19Z,   0.80,   3.28,  99.90,   4.61,   0.53,
04/19 20Z,   0.80,   4.60,  99.90,   5.93,   0.53,
04/19 21Z,   0.70,   5.41,  99.90,   6.63,   0.53,
04/19 22Z,   0.80,   5.54,  99.90,   6.87,   0.53,  (max)
04/19 23Z,   0.80,   5.04,  99.90,   6.37,   0.53,
04/20 00Z,   0.80,   4.15,  99.90,   5.48,   0.53,
04/20 01Z,   0.80,   3.21,  99.90,   4.54,   0.53,
04/20 02Z,   0.80,   2.55,  99.90,   3.87,   0.53,
04/20 03Z,   0.80,   2.44,  99.90,   3.77,   0.53,  (min)
04/20 04Z,   0.80,   3.02,  99.90,   4.35,   0.53,
04/20 05Z,   0.70,   4.17,  99.90,   5.39,   0.53,
04/20 06Z,   0.70,   5.53,  99.90,   6.76,   0.53,
04/20 07Z,   0.70,   6.74,  99.90,   7.97,   0.53,
04/20 08Z,   0.80,   7.54,  99.90,   8.86,   0.53,
04/20 09Z,   0.90,   7.73,  99.90,   9.15,   0.53,  0.13 ft above HAT  (max)
04/20 10Z,   0.70,   7.15,  99.90,   8.37,   0.53,
04/20 11Z,   0.80,   5.79,  99.90,   7.12,   0.53,
04/20 12Z,   0.80,   3.89,  99.90,   5.21,   0.53,
04/20 13Z,   0.80,   1.81,  99.90,   3.13,   0.53,
04/20 14Z,   0.80,  -0.04,  99.90,   1.29,   0.53,
04/20 15Z,   0.80,  -1.27,  99.90,   0.06,   0.53,
04/20 16Z,   0.80,  -1.61,  99.90,  -0.28,   0.53,  (min)
04/20 17Z,   0.70,  -1.04,  99.90,   0.19,   0.53,
04/20 18Z,   0.70,   0.20,  99.90,   1.43,   0.53,
04/20 19Z,   0.70,   1.73,  99.90,   2.95,   0.53,
04/20 20Z,   0.70,   3.22,  99.90,   4.44,   0.53,
04/20 21Z,   0.70,   4.43,  99.90,   5.66,   0.53,
04/20 22Z,   0.70,   5.17,  99.90,   6.40,   0.53,
04/20 23Z,   0.70,   5.28,  99.90,   6.51,   0.53,  (max)
04/21 00Z,   0.70,   4.84,  99.90,   6.07,   0.53,