EXTRA-TROPICAL  STORM  SURGE
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Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
Mid-Atlantic
Southeast
Gulf
Northwest
Alaska
Gulf of Alaska
Status
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
#Seattle, WA : 05/18/2026 12:22:43 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/16 12Z,   0.40,  -0.27,   0.17,  99.90,   0.04,  (max)
05/16 13Z,   0.40,  -2.02,  -1.38,  99.90,   0.24,
05/16 14Z,   0.40,  -4.66,  -3.84,  99.90,   0.42,
05/16 15Z,   0.40,  -7.80,  -7.11,  99.90,   0.29,
05/16 16Z,   0.40, -10.93, -10.32,  99.90,   0.21,
05/16 17Z,   0.40, -13.35, -12.69,  99.90,   0.26,
05/16 18Z,   0.40, -14.38, -13.85,  99.90,   0.13,  (min)
05/16 19Z,   0.40, -13.72, -13.12,  99.90,   0.20,
05/16 20Z,   0.40, -11.61, -11.19,  99.90,   0.02,
05/16 21Z,   0.40,  -8.62,  -8.41,  99.90,  -0.19,
05/16 22Z,   0.40,  -5.41,  -5.25,  99.90,  -0.24,
05/16 23Z,   0.40,  -2.60,  -2.65,  99.90,  -0.45,
05/17 00Z,   0.40,  -0.66,  -0.87,  99.90,  -0.61,
05/17 01Z,   0.40,   0.24,  -0.07,  99.90,  -0.71,  (max)
05/17 02Z,   0.40,   0.19,  -0.13,  99.90,  -0.72,
05/17 03Z,   0.50,  -0.59,  -0.82,  99.90,  -0.73,
05/17 04Z,   0.50,  -1.86,  -1.89,  99.90,  -0.53,
05/17 05Z,   0.50,  -3.23,  -3.16,  99.90,  -0.43,
05/17 06Z,   0.40,  -4.17,  -4.07,  99.90,  -0.30,
05/17 07Z,   0.40,  -4.28,  -4.17,  99.90,  -0.29,  (min)
05/17 08Z,   0.40,  -3.53,  -3.43,  99.90,  -0.30,
05/17 09Z,   0.40,  -2.24,  -2.23,  99.90,  -0.39,
05/17 10Z,   0.30,  -0.87,  -0.93,  99.90,  -0.36,
05/17 11Z,   0.30,   0.11,   0.14,  99.90,  -0.27,
05/17 12Z,   0.20,   0.22,   0.34,  99.90,  -0.08,  (max)
05/17 13Z,   0.10,  -0.81,  -0.60,  99.90,   0.11,
05/17 14Z,   0.10,  -2.94,  -2.61,  99.90,   0.23,
05/17 15Z,   0.10,  -5.88,  -5.57,  99.90,   0.21,
05/17 16Z,   0.10,  -9.21,  -9.06,  99.90,   0.05,
05/17 17Z,   0.10, -12.34, -12.28,  99.90,  -0.04,
05/17 18Z,   0.00, -14.53, -14.47,  99.90,   0.06,
05/17 19Z,   0.00, -15.13, -15.08,  99.90,   0.05,  (min)
05/17 20Z,   0.00, -13.97, -13.77,  99.90,   0.20,
05/17 21Z,   0.00, -11.41, -11.35,  99.90,   0.06,
05/17 22Z,   0.00,  -8.11,  -8.20,  99.90,  -0.09,
05/17 23Z,   0.00,  -4.75,  -4.97,  99.90,  -0.22,
05/18 00Z,   0.00,  -1.93,  -2.38,  99.90,  -0.45,
05/18 01Z,   0.00,  -0.08,  -0.64,  99.90,  -0.56,
05/18 02Z,   0.00,   0.70,   0.16,  99.90,  -0.54,  (max)
05/18 03Z,   0.00,   0.56,   0.06,  99.90,  -0.50,
05/18 04Z,   0.00,  -0.28,  -0.67,  99.90,  -0.39,
05/18 05Z,   0.00,  -1.58,  -1.73,  99.90,  -0.15,
05/18 06Z,   0.10,  -2.92,  -2.93,  99.90,  -0.11,
05/18 07Z,   0.10,  -3.77,  -3.72,  99.90,  -0.05,  (min)
05/18 08Z,   0.10,  -3.80,  -3.69,  99.90,   0.01,
05/18 09Z,   0.10,  -3.04,  -2.95,  99.90,  -0.01,
05/18 10Z,   0.10,  -1.85,  -1.84,  99.90,  -0.09,
05/18 11Z,   0.10,  -0.67,  -0.64,  99.90,  -0.07,
05/18 12Z,   0.10,   0.04,   0.20,  99.90,   0.06,  (max)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/18 13Z,   0.10,  -0.15,  99.90,  -0.01,   0.04,
05/18 14Z,   0.10,  -1.46,  99.90,  -1.34,   0.02,
05/18 15Z,   0.10,  -3.81,  99.90,  -3.71,   0.00,
05/18 16Z,   0.10,  -6.87,  99.90,  -6.79,  -0.02,
05/18 17Z,   0.10, -10.20,  99.90, -10.14,  -0.04,
05/18 18Z,   0.10, -13.18,  99.90, -13.14,  -0.06,
05/18 19Z,   0.10, -15.06,  99.90, -15.04,  -0.08,
05/18 20Z,   0.10, -15.26,  99.90, -15.26,  -0.10,  (min)
05/18 21Z,   0.10, -13.73,  99.90, -13.75,  -0.12,
05/18 22Z,   0.10, -10.92,  99.90, -10.96,  -0.14,
05/18 23Z,   0.10,  -7.52,  99.90,  -7.58,  -0.16,
05/19 00Z,   0.10,  -4.19,  99.90,  -4.27,  -0.18,
05/19 01Z,   0.20,  -1.49,  99.90,  -1.48,  -0.18,
05/19 02Z,   0.20,   0.21,  99.90,   0.23,  -0.18,
05/19 03Z,   0.20,   0.88,  99.90,   0.89,  -0.18,  (max)
05/19 04Z,   0.20,   0.66,  99.90,   0.68,  -0.18,
05/19 05Z,   0.20,  -0.22,  99.90,  -0.21,  -0.18,
05/19 06Z,   0.20,  -1.53,  99.90,  -1.51,  -0.18,
05/19 07Z,   0.30,  -2.82,  99.90,  -2.70,  -0.18,
05/19 08Z,   0.20,  -3.60,  99.90,  -3.59,  -0.18,  (min)
05/19 09Z,   0.20,  -3.59,  99.90,  -3.57,  -0.18,
05/19 10Z,   0.20,  -2.88,  99.90,  -2.86,  -0.18,
05/19 11Z,   0.20,  -1.83,  99.90,  -1.81,  -0.18,
05/19 12Z,   0.20,  -0.84,  99.90,  -0.83,  -0.18,
05/19 13Z,   0.10,  -0.34,  99.90,  -0.43,  -0.18,  (max)
05/19 14Z,   0.10,  -0.72,  99.90,  -0.80,  -0.18,
05/19 15Z,   0.10,  -2.14,  99.90,  -2.23,  -0.18,
05/19 16Z,   0.10,  -4.51,  99.90,  -4.60,  -0.18,
05/19 17Z,   0.10,  -7.51,  99.90,  -7.60,  -0.18,
05/19 18Z,   0.10, -10.69,  99.90, -10.77,  -0.18,
05/19 19Z,   0.10, -13.42,  99.90, -13.50,  -0.18,
05/19 20Z,   0.10, -14.96,  99.90, -15.05,  -0.18,  (min)
05/19 21Z,   0.10, -14.85,  99.90, -14.93,  -0.18,
05/19 22Z,   0.10, -13.11,  99.90, -13.19,  -0.18,
05/19 23Z,   0.10, -10.25,  99.90, -10.33,  -0.18,
05/20 00Z,   0.10,  -6.93,  99.90,  -7.02,  -0.18,
05/20 01Z,   0.10,  -3.77,  99.90,  -3.85,  -0.18,
05/20 02Z,   0.10,  -1.27,  99.90,  -1.35,  -0.18,
05/20 03Z,   0.10,   0.27,  99.90,   0.19,  -0.18,
05/20 04Z,   0.10,   0.83,  99.90,   0.75,  -0.18,  (max)
05/20 05Z,   0.10,   0.57,  99.90,   0.48,  -0.18,
05/20 06Z,   0.10,  -0.34,  99.90,  -0.43,  -0.18,
05/20 07Z,   0.10,  -1.64,  99.90,  -1.73,  -0.18,
05/20 08Z,   0.10,  -2.91,  99.90,  -2.99,  -0.18,
05/20 09Z,   0.10,  -3.66,  99.90,  -3.74,  -0.18,
05/20 10Z,   0.10,  -3.68,  99.90,  -3.76,  -0.18,  (min)
05/20 11Z,   0.10,  -3.09,  99.90,  -3.17,  -0.18,
05/20 12Z,   0.10,  -2.20,  99.90,  -2.28,  -0.18,
05/20 13Z,   0.10,  -1.37,  99.90,  -1.45,  -0.18,
05/20 14Z,   0.10,  -0.98,  99.90,  -1.07,  -0.18,  (max)
05/20 15Z,   0.10,  -1.40,  99.90,  -1.49,  -0.18,
05/20 16Z,   0.10,  -2.78,  99.90,  -2.87,  -0.18,
05/20 17Z,   0.00,  -5.02,  99.90,  -5.20,  -0.18,
05/20 18Z,   0.00,  -7.80,  99.90,  -7.98,  -0.18,
05/20 19Z,   0.10, -10.70,  99.90, -10.78,  -0.18,
05/20 20Z,   0.00, -13.11,  99.90, -13.29,  -0.18,
05/20 21Z,   0.00, -14.34,  99.90, -14.53,  -0.18,  (min)
05/20 22Z,   0.00, -14.01,  99.90, -14.19,  -0.18,
05/20 23Z,   0.00, -12.23,  99.90, -12.41,  -0.18,
05/21 00Z,   0.00,  -9.49,  99.90,  -9.67,  -0.18,
05/21 01Z,   0.00,  -6.39,  99.90,  -6.57,  -0.18,
05/21 02Z,   0.00,  -3.47,  99.90,  -3.65,  -0.18,
05/21 03Z,   0.00,  -1.18,  99.90,  -1.37,  -0.18,
05/21 04Z,   0.00,   0.20,  99.90,   0.02,  -0.18,
05/21 05Z,   0.10,   0.67,  99.90,   0.59,  -0.18,  (max)
05/21 06Z,   0.10,   0.36,  99.90,   0.28,  -0.18,
05/21 07Z,   0.10,  -0.58,  99.90,  -0.66,  -0.18,
05/21 08Z,   0.10,  -1.89,  99.90,  -1.98,  -0.18,
05/21 09Z,   0.10,  -3.17,  99.90,  -3.25,  -0.18,
05/21 10Z,   0.10,  -3.97,  99.90,  -4.05,  -0.18,
05/21 11Z,   0.10,  -4.09,  99.90,  -4.17,  -0.18,  (min)
05/21 12Z,   0.10,  -3.66,  99.90,  -3.75,  -0.18,
05/21 13Z,   0.10,  -2.93,  99.90,  -3.02,  -0.18,
05/21 14Z,   0.10,  -2.20,  99.90,  -2.29,  -0.18,
05/21 15Z,   0.10,  -1.83,  99.90,  -1.91,  -0.18,  (max)
05/21 16Z,   0.10,  -2.16,  99.90,  -2.24,  -0.18,
05/21 17Z,   0.10,  -3.35,  99.90,  -3.43,  -0.18,
05/21 18Z,   0.10,  -5.30,  99.90,  -5.38,  -0.18,
05/21 19Z,   0.10,  -7.74,  99.90,  -7.82,  -0.18,
05/21 20Z,   0.10, -10.28,  99.90, -10.36,  -0.18,
05/21 21Z,   0.10, -12.34,  99.90, -12.42,  -0.18,
05/21 22Z,   0.10, -13.31,  99.90, -13.39,  -0.18,  (min)
05/21 23Z,   0.10, -12.87,  99.90, -12.95,  -0.18,
05/22 00Z,   0.10, -11.18,  99.90, -11.26,  -0.18,