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
#Port Townsend, WA : 08/09/2026 09:22:05 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/07 18Z,   0.40,   4.51,   5.17,  99.90,   0.26,
08/07 19Z,   0.30,   5.61,   6.25,  99.90,   0.34,
08/07 20Z,   0.30,   6.39,   6.93,  99.90,   0.24,
08/07 21Z,   0.30,   6.85,   7.33,  99.90,   0.18,
08/07 22Z,   0.40,   7.00,   7.39,  99.90,  -0.01,  (max)
08/07 23Z,   0.30,   6.92,   7.34,  99.90,   0.12,
08/08 00Z,   0.50,   6.81,   7.24,  99.90,  -0.07,  (min)
08/08 01Z,   0.50,   6.91,   7.28,  99.90,  -0.13,
08/08 02Z,   0.50,   7.25,   7.62,  99.90,  -0.13,
08/08 03Z,   0.50,   7.70,   8.03,  99.90,  -0.17,
08/08 04Z,   0.50,   8.11,   8.52,  99.90,  -0.09,
08/08 05Z,   0.50,   8.39,   8.80,  99.90,  -0.09,  (max)
08/08 06Z,   0.60,   8.42,   8.76,  99.90,  -0.26,
08/08 07Z,   0.50,   7.98,   8.34,  99.90,  -0.14,
08/08 08Z,   0.50,   6.92,   7.24,  99.90,  -0.18,
08/08 09Z,   0.50,   5.32,   5.55,  99.90,  -0.27,
08/08 10Z,   0.60,   3.37,   3.51,  99.90,  -0.46,
08/08 11Z,   0.50,   1.35,   1.48,  99.90,  -0.37,
08/08 12Z,   0.40,  -0.35,  -0.04,  99.90,  -0.09,
08/08 13Z,   0.40,  -1.34,  -0.81,  99.90,   0.13,
08/08 14Z,   0.40,  -1.46,  -0.95,  99.90,   0.11,  (min)
08/08 15Z,   0.40,  -0.87,  -0.30,  99.90,   0.17,
08/08 16Z,   0.40,   0.16,   0.65,  99.90,   0.09,
08/08 17Z,   0.40,   1.47,   2.04,  99.90,   0.17,
08/08 18Z,   0.30,   2.98,   3.62,  99.90,   0.34,
08/08 19Z,   0.30,   4.53,   5.30,  99.90,   0.47,
08/08 20Z,   0.30,   5.91,   6.57,  99.90,   0.36,
08/08 21Z,   0.30,   6.96,   7.45,  99.90,   0.19,
08/08 22Z,   0.30,   7.59,   7.93,  99.90,   0.04,
08/08 23Z,   0.30,   7.76,   8.12,  99.90,   0.06,
08/09 00Z,   0.40,   7.57,   8.12,  99.90,   0.15,  (max)
08/09 01Z,   0.50,   7.30,   7.73,  99.90,  -0.07,
08/09 02Z,   0.50,   7.25,   7.60,  99.90,  -0.15,  (min)
08/09 03Z,   0.50,   7.47,   7.81,  99.90,  -0.16,
08/09 04Z,   0.50,   7.81,   8.08,  99.90,  -0.23,
08/09 05Z,   0.50,   8.12,   8.49,  99.90,  -0.13,
08/09 06Z,   0.50,   8.34,   8.68,  99.90,  -0.16,  (max)
08/09 07Z,   0.50,   8.33,   8.59,  99.90,  -0.24,
08/09 08Z,   0.50,   7.87,   8.14,  99.90,  -0.23,
08/09 09Z,   0.50,   6.81,   7.14,  99.90,  -0.17,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/09 10Z,   0.50,   5.18,  99.90,   5.52,  -0.16,
08/09 11Z,   0.50,   3.14,  99.90,   3.49,  -0.15,
08/09 12Z,   0.50,   0.99,  99.90,   1.34,  -0.14,
08/09 13Z,   0.50,  -0.84,  99.90,  -0.48,  -0.13,
08/09 14Z,   0.40,  -1.89,  99.90,  -1.62,  -0.12,
08/09 15Z,   0.40,  -2.00,  99.90,  -1.72,  -0.11,  (min)
08/09 16Z,   0.50,  -1.35,  99.90,  -0.96,  -0.10,
08/09 17Z,   0.50,  -0.22,  99.90,   0.18,  -0.09,
08/09 18Z,   0.40,   1.25,  99.90,   1.57,  -0.08,
08/09 19Z,   0.40,   2.97,  99.90,   3.30,  -0.07,
08/09 20Z,   0.40,   4.76,  99.90,   5.09,  -0.07,
08/09 21Z,   0.50,   6.35,  99.90,   6.80,  -0.06,
08/09 22Z,   0.50,   7.54,  99.90,   7.98,  -0.06,
08/09 23Z,   0.50,   8.17,  99.90,   8.61,  -0.06,  (max)
08/10 00Z,   0.40,   8.19,  99.90,   8.54,  -0.06,
08/10 01Z,   0.50,   7.79,  99.90,   8.23,  -0.06,
08/10 02Z,   0.50,   7.33,  99.90,   7.77,  -0.06,
08/10 03Z,   0.50,   7.16,  99.90,   7.61,  -0.06,  (min)
08/10 04Z,   0.50,   7.32,  99.90,   7.77,  -0.06,
08/10 05Z,   0.50,   7.64,  99.90,   8.08,  -0.06,
08/10 06Z,   0.50,   7.97,  99.90,   8.41,  -0.06,
08/10 07Z,   0.50,   8.23,  99.90,   8.68,  -0.06,
08/10 08Z,   0.50,   8.28,  99.90,   8.73,  -0.06,  (max)
08/10 09Z,   0.50,   7.87,  99.90,   8.32,  -0.06,
08/10 10Z,   0.40,   6.83,  99.90,   7.18,  -0.06,
08/10 11Z,   0.50,   5.16,  99.90,   5.61,  -0.06,
08/10 12Z,   0.50,   3.01,  99.90,   3.45,  -0.06,
08/10 13Z,   0.50,   0.70,  99.90,   1.15,  -0.06,
08/10 14Z,   0.40,  -1.22,  99.90,  -0.88,  -0.06,
08/10 15Z,   0.40,  -2.28,  99.90,  -1.93,  -0.06,  (min)
08/10 16Z,   0.50,  -2.33,  99.90,  -1.88,  -0.06,
08/10 17Z,   0.40,  -1.58,  99.90,  -1.24,  -0.06,
08/10 18Z,   0.40,  -0.32,  99.90,   0.03,  -0.06,
08/10 19Z,   0.40,   1.33,  99.90,   1.67,  -0.06,
08/10 20Z,   0.40,   3.24,  99.90,   3.59,  -0.06,
08/10 21Z,   0.40,   5.21,  99.90,   5.55,  -0.06,
08/10 22Z,   0.40,   6.91,  99.90,   7.25,  -0.06,
08/10 23Z,   0.40,   8.07,  99.90,   8.41,  -0.06,
08/11 00Z,   0.40,   8.52,  99.90,   8.86,  -0.06,  (max)
08/11 01Z,   0.40,   8.26,  99.90,   8.61,  -0.06,
08/11 02Z,   0.50,   7.58,  99.90,   8.03,  -0.06,
08/11 03Z,   0.50,   6.96,  99.90,   7.40,  -0.06,
08/11 04Z,   0.50,   6.73,  99.90,   7.18,  -0.06,  (min)
08/11 05Z,   0.50,   6.91,  99.90,   7.35,  -0.06,
08/11 06Z,   0.50,   7.28,  99.90,   7.72,  -0.06,
08/11 07Z,   0.50,   7.70,  99.90,   8.14,  -0.06,
08/11 08Z,   0.40,   8.08,  99.90,   8.42,  -0.06,
08/11 09Z,   0.40,   8.23,  99.90,   8.58,  -0.06,  (max)
08/11 10Z,   0.40,   7.90,  99.90,   8.24,  -0.06,
08/11 11Z,   0.40,   6.87,  99.90,   7.22,  -0.06,
08/11 12Z,   0.40,   5.14,  99.90,   5.48,  -0.06,
08/11 13Z,   0.40,   2.87,  99.90,   3.21,  -0.06,
08/11 14Z,   0.40,   0.46,  99.90,   0.81,  -0.06,
08/11 15Z,   0.40,  -1.47,  99.90,  -1.12,  -0.06,
08/11 16Z,   0.40,  -2.43,  99.90,  -2.09,  -0.06,  (min)
08/11 17Z,   0.40,  -2.34,  99.90,  -2.00,  -0.06,
08/11 18Z,   0.40,  -1.45,  99.90,  -1.11,  -0.06,
08/11 19Z,   0.30,  -0.04,  99.90,   0.20,  -0.06,
08/11 20Z,   0.30,   1.77,  99.90,   2.01,  -0.06,
08/11 21Z,   0.40,   3.83,  99.90,   4.18,  -0.06,
08/11 22Z,   0.40,   5.87,  99.90,   6.21,  -0.06,
08/11 23Z,   0.40,   7.51,  99.90,   7.86,  -0.06,
08/12 00Z,   0.40,   8.47,  99.90,   8.81,  -0.06,
08/12 01Z,   0.40,   8.59,  99.90,   8.93,  -0.06,  (max)
08/12 02Z,   0.50,   7.97,  99.90,   8.41,  -0.06,
08/12 03Z,   0.50,   7.02,  99.90,   7.46,  -0.06,
08/12 04Z,   0.40,   6.28,  99.90,   6.62,  -0.06,
08/12 05Z,   0.40,   6.07,  99.90,   6.41,  -0.06,  (min)
08/12 06Z,   0.50,   6.32,  99.90,   6.76,  -0.06,
08/12 07Z,   0.50,   6.78,  99.90,   7.23,  -0.06,
08/12 08Z,   0.40,   7.33,  99.90,   7.67,  -0.06,
08/12 09Z,   0.40,   7.85,  99.90,   8.19,  -0.06,
08/12 10Z,   0.40,   8.12,  99.90,   8.46,  -0.06,  (max)
08/12 11Z,   0.40,   7.84,  99.90,   8.19,  -0.06,
08/12 12Z,   0.40,   6.82,  99.90,   7.16,  -0.06,
08/12 13Z,   0.40,   5.03,  99.90,   5.37,  -0.06,
08/12 14Z,   0.40,   2.69,  99.90,   3.04,  -0.06,
08/12 15Z,   0.40,   0.31,  99.90,   0.65,  -0.06,
08/12 16Z,   0.40,  -1.50,  99.90,  -1.15,  -0.06,
08/12 17Z,   0.40,  -2.26,  99.90,  -1.91,  -0.06,  (min)
08/12 18Z,   0.40,  -1.96,  99.90,  -1.62,  -0.06,
08/12 19Z,   0.40,  -0.91,  99.90,  -0.56,  -0.06,
08/12 20Z,   0.40,   0.65,  99.90,   0.99,  -0.06,
08/12 21Z,   0.40,   2.58,  99.90,   2.92,  -0.06,
08/12 22Z,   0.40,   4.70,  99.90,   5.05,  -0.06,
08/12 23Z,   0.40,   6.67,  99.90,   7.01,  -0.06,
08/13 00Z,   0.40,   8.08,  99.90,   8.42,  -0.06,
08/13 01Z,  99.90,   8.67,  99.90,  99.90,  -0.06,
08/13 02Z,  99.90,   8.35,  99.90,  99.90,  -0.06,
08/13 03Z,  99.90,   7.36,  99.90,  99.90,  -0.06,
08/13 04Z,  99.90,   6.19,  99.90,  99.90,  -0.06,
08/13 05Z,  99.90,   5.41,  99.90,  99.90,  -0.06,
08/13 06Z,  99.90,   5.26,  99.90,  99.90,  -0.06,