EXTRA-TROPICAL  STORM  SURGE
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Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
Mid-Atlantic
Southeast
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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 : 09/08/2026 00:22:48 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
09/06 06Z,   0.90,   9.72,  10.23,  99.90,  -0.39,
09/06 07Z,   0.90,   9.73,  10.17,  99.90,  -0.46,  (max)
09/06 08Z,   0.90,   9.08,   9.51,  99.90,  -0.47,
09/06 09Z,   0.90,   7.74,   8.16,  99.90,  -0.48,
09/06 10Z,   0.90,   5.84,   6.30,  99.90,  -0.44,
09/06 11Z,   0.90,   3.63,   4.06,  99.90,  -0.47,
09/06 12Z,   0.80,   1.46,   1.86,  99.90,  -0.40,
09/06 13Z,   0.80,  -0.18,   0.26,  99.90,  -0.36,
09/06 14Z,   0.80,  -0.83,  -0.34,  99.90,  -0.31,  (min)
09/06 15Z,   0.80,  -0.38,   0.18,  99.90,  -0.24,
09/06 16Z,   0.80,   1.00,   1.50,  99.90,  -0.30,
09/06 17Z,   0.80,   2.97,   3.54,  99.90,  -0.23,
09/06 18Z,   0.70,   5.18,   6.01,  99.90,   0.13,
09/06 19Z,   0.70,   7.25,   8.30,  99.90,   0.35,
09/06 20Z,   0.70,   8.87,  10.02,  99.90,   0.45,
09/06 21Z,   0.70,   9.91,  11.05,  99.90,   0.44,
09/06 22Z,   0.70,  10.41,  11.49,  99.90,   0.38,  (max)
09/06 23Z,   0.70,  10.40,  11.28,  99.90,   0.18,
09/07 00Z,   0.70,   9.89,  10.76,  99.90,   0.17,
09/07 01Z,   0.70,   9.04,   9.98,  99.90,   0.24,
09/07 02Z,   0.70,   8.22,   9.14,  99.90,   0.22,
09/07 03Z,   0.70,   7.73,   8.57,  99.90,   0.14,
09/07 04Z,   0.70,   7.68,   8.55,  99.90,   0.17,  (min)
09/07 05Z,   0.80,   8.05,   8.91,  99.90,   0.06,
09/07 06Z,   0.90,   8.71,   9.44,  99.90,  -0.17,
09/07 07Z,   0.90,   9.37,   9.93,  99.90,  -0.34,
09/07 08Z,   0.90,   9.66,  10.14,  99.90,  -0.42,  (max)
09/07 09Z,   0.90,   9.24,   9.73,  99.90,  -0.41,
09/07 10Z,   0.90,   8.08,   8.53,  99.90,  -0.45,
09/07 11Z,   0.90,   6.26,   6.75,  99.90,  -0.41,
09/07 12Z,   0.80,   4.00,   4.43,  99.90,  -0.37,
09/07 13Z,   0.80,   1.67,   2.00,  99.90,  -0.47,
09/07 14Z,   0.80,  -0.17,   0.09,  99.90,  -0.54,
09/07 15Z,   0.80,  -1.01,  -0.83,  99.90,  -0.62,  (min)
09/07 16Z,   0.80,  -0.68,  -0.48,  99.90,  -0.60,
09/07 17Z,   0.80,   0.69,   0.85,  99.90,  -0.64,
09/07 18Z,   0.60,   2.78,   3.02,  99.90,  -0.36,
09/07 19Z,   0.60,   5.20,   5.72,  99.90,  -0.08,
09/07 20Z,   0.50,   7.49,   8.18,  99.90,   0.19,
09/07 21Z,   0.50,   9.28,  10.10,  99.90,   0.32,
09/07 22Z,   0.50,  10.43,  11.23,  99.90,   0.30,
09/07 23Z,   0.50,  10.91,  11.55,  99.90,   0.14,  (max)
09/08 00Z,   0.50,  10.71,  11.18,  99.90,  -0.03,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
09/08 01Z,   0.50,   9.87,  99.90,  10.33,  -0.04,
09/08 02Z,   0.50,   8.64,  99.90,   9.09,  -0.05,
09/08 03Z,   0.50,   7.48,  99.90,   7.93,  -0.05,
09/08 04Z,   0.50,   6.79,  99.90,   7.23,  -0.06,
09/08 05Z,   0.50,   6.73,  99.90,   7.16,  -0.07,  (min)
09/08 06Z,   0.50,   7.27,  99.90,   7.69,  -0.08,
09/08 07Z,   0.50,   8.23,  99.90,   8.65,  -0.08,
09/08 08Z,   0.50,   9.23,  99.90,   9.64,  -0.09,
09/08 09Z,   0.50,   9.79,  99.90,  10.20,  -0.10,  (max)
09/08 10Z,   0.50,   9.58,  99.90,   9.97,  -0.10,
09/08 11Z,   0.40,   8.50,  99.90,   8.79,  -0.11,
09/08 12Z,   0.40,   6.66,  99.90,   6.95,  -0.12,
09/08 13Z,   0.40,   4.27,  99.90,   4.55,  -0.12,
09/08 14Z,   0.40,   1.76,  99.90,   2.05,  -0.12,
09/08 15Z,   0.40,  -0.22,  99.90,   0.06,  -0.12,
09/08 16Z,   0.40,  -1.13,  99.90,  -0.85,  -0.12,  (min)
09/08 17Z,   0.40,  -0.75,  99.90,  -0.47,  -0.12,
09/08 18Z,   0.40,   0.76,  99.90,   1.04,  -0.12,
09/08 19Z,   0.40,   3.06,  99.90,   3.34,  -0.12,
09/08 20Z,   0.40,   5.69,  99.90,   5.97,  -0.12,
09/08 21Z,   0.40,   8.12,  99.90,   8.41,  -0.12,
09/08 22Z,   0.40,   9.95,  99.90,  10.23,  -0.12,
09/08 23Z,   0.40,  10.99,  99.90,  11.27,  -0.12,
09/09 00Z,   0.30,  11.22,  99.90,  11.40,  -0.12,  (max)
09/09 01Z,   0.30,  10.63,  99.90,  10.81,  -0.12,
09/09 02Z,   0.30,   9.32,  99.90,   9.51,  -0.12,
09/09 03Z,   0.30,   7.70,  99.90,   7.88,  -0.12,
09/09 04Z,   0.30,   6.30,  99.90,   6.48,  -0.12,
09/09 05Z,   0.30,   5.59,  99.90,   5.77,  -0.12,  (min)
09/09 06Z,   0.30,   5.71,  99.90,   5.89,  -0.12,
09/09 07Z,   0.30,   6.59,  99.90,   6.77,  -0.12,
09/09 08Z,   0.30,   7.94,  99.90,   8.12,  -0.12,
09/09 09Z,   0.30,   9.27,  99.90,   9.45,  -0.12,
09/09 10Z,   0.30,  10.04,  99.90,  10.22,  -0.12,  (max)
09/09 11Z,   0.30,   9.92,  99.90,  10.10,  -0.12,
09/09 12Z,   0.30,   8.84,  99.90,   9.02,  -0.12,
09/09 13Z,   0.30,   6.91,  99.90,   7.09,  -0.12,
09/09 14Z,   0.30,   4.38,  99.90,   4.57,  -0.12,
09/09 15Z,   0.30,   1.77,  99.90,   1.96,  -0.12,
09/09 16Z,   0.30,  -0.21,  99.90,  -0.03,  -0.12,
09/09 17Z,   0.30,  -1.00,  99.90,  -0.82,  -0.12,  (min)
09/09 18Z,   0.30,  -0.42,  99.90,  -0.23,  -0.12,
09/09 19Z,   0.30,   1.35,  99.90,   1.53,  -0.12,
09/09 20Z,   0.30,   3.89,  99.90,   4.07,  -0.12,
09/09 21Z,   0.30,   6.66,  99.90,   6.84,  -0.12,
09/09 22Z,   0.30,   9.06,  99.90,   9.24,  -0.12,
09/09 23Z,   0.30,  10.70,  99.90,  10.88,  -0.12,
09/10 00Z,   0.30,  11.41,  99.90,  11.59,  -0.12,  (max)
09/10 01Z,   0.30,  11.18,  99.90,  11.36,  -0.12,
09/10 02Z,   0.30,  10.06,  99.90,  10.24,  -0.12,
09/10 03Z,   0.30,   8.27,  99.90,   8.45,  -0.12,
09/10 04Z,   0.30,   6.32,  99.90,   6.50,  -0.12,
09/10 05Z,   0.30,   4.87,  99.90,   5.05,  -0.12,
09/10 06Z,   0.30,   4.33,  99.90,   4.51,  -0.12,  (min)
09/10 07Z,   0.40,   4.81,  99.90,   5.09,  -0.12,
09/10 08Z,   0.40,   6.11,  99.90,   6.39,  -0.12,
09/10 09Z,   0.40,   7.84,  99.90,   8.12,  -0.12,
09/10 10Z,   0.40,   9.41,  99.90,   9.69,  -0.12,
09/10 11Z,   0.40,  10.27,  99.90,  10.56,  -0.12,  (max)
09/10 12Z,   0.40,  10.14,  99.90,  10.42,  -0.12,
09/10 13Z,   0.40,   8.99,  99.90,   9.27,  -0.12,
09/10 14Z,   0.40,   6.97,  99.90,   7.25,  -0.12,
09/10 15Z,   0.50,   4.38,  99.90,   4.76,  -0.12,
09/10 16Z,   0.50,   1.82,  99.90,   2.20,  -0.12,
09/10 17Z,   0.50,   0.03,  99.90,   0.41,  -0.12,
09/10 18Z,   0.50,  -0.46,  99.90,  -0.08,  -0.12,  (min)
09/10 19Z,   0.50,   0.45,  99.90,   0.83,  -0.12,
09/10 20Z,   0.50,   2.49,  99.90,   2.87,  -0.12,
09/10 21Z,   0.50,   5.18,  99.90,   5.56,  -0.12,
09/10 22Z,   0.50,   7.91,  99.90,   8.29,  -0.12,
09/10 23Z,   0.50,  10.08,  99.90,  10.46,  -0.12,
09/11 00Z,   0.50,  11.31,  99.90,  11.69,  -0.12,
09/11 01Z,   0.50,  11.50,  99.90,  11.88,  -0.12,  (max)
09/11 02Z,   0.50,  10.69,  99.90,  11.07,  -0.12,
09/11 03Z,   0.50,   9.00,  99.90,   9.38,  -0.12,
09/11 04Z,   0.50,   6.80,  99.90,   7.18,  -0.12,
09/11 05Z,   0.50,   4.71,  99.90,   5.09,  -0.12,
09/11 06Z,   0.50,   3.40,  99.90,   3.78,  -0.12,
09/11 07Z,   0.50,   3.22,  99.90,   3.60,  -0.12,  (min)
09/11 08Z,   0.50,   4.15,  99.90,   4.53,  -0.12,
09/11 09Z,   0.50,   5.87,  99.90,   6.25,  -0.12,
09/11 10Z,   0.50,   7.89,  99.90,   8.27,  -0.12,
09/11 11Z,   0.50,   9.57,  99.90,   9.96,  -0.12,
09/11 12Z,   0.50,  10.42,  99.90,  10.80,  -0.12,  (max)
09/11 13Z,   0.50,  10.20,  99.90,  10.58,  -0.12,
09/11 14Z,   0.50,   8.96,  99.90,   9.34,  -0.12,
09/11 15Z,   0.50,   6.90,  99.90,   7.28,  -0.12,
09/11 16Z,   0.50,   4.38,  99.90,   4.76,  -0.12,
09/11 17Z,   0.50,   2.05,  99.90,   2.43,  -0.12,
09/11 18Z,   0.50,   0.62,  99.90,   1.01,  -0.12,