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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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 : 03/06/2026 23:22:31 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/05 06Z,   0.80,   3.12,   3.46,  99.90,  -0.46,
03/05 07Z,   0.80,   1.78,   1.99,  99.90,  -0.59,
03/05 08Z,   0.80,   1.68,   1.86,  99.90,  -0.62,  (min)
03/05 09Z,   0.80,   2.84,   3.08,  99.90,  -0.56,
03/05 10Z,   0.80,   4.92,   5.03,  99.90,  -0.69,
03/05 11Z,   0.70,   7.42,   7.54,  99.90,  -0.58,
03/05 12Z,   0.60,   9.76,   9.91,  99.90,  -0.45,
03/05 13Z,   0.60,  11.38,  11.53,  99.90,  -0.45,
03/05 14Z,   0.60,  11.94,  12.01,  99.90,  -0.53,  (max)
03/05 15Z,   0.60,  11.39,  11.41,  99.90,  -0.58,
03/05 16Z,   0.60,   9.89,  10.04,  99.90,  -0.45,
03/05 17Z,   0.50,   7.69,   8.01,  99.90,  -0.18,
03/05 18Z,   0.40,   5.24,   5.53,  99.90,  -0.11,
03/05 19Z,   0.30,   3.21,   3.50,  99.90,  -0.01,
03/05 20Z,   0.30,   2.19,   2.47,  99.90,  -0.02,  (min)
03/05 21Z,   0.30,   2.41,   2.68,  99.90,  -0.03,
03/05 22Z,   0.30,   3.71,   3.97,  99.90,  -0.04,
03/05 23Z,   0.30,   5.66,   5.74,  99.90,  -0.22,
03/06 00Z,   0.20,   7.76,   7.74,  99.90,  -0.22,
03/06 01Z,   0.20,   9.43,   9.44,  99.90,  -0.19,
03/06 02Z,   0.20,  10.24,  10.20,  99.90,  -0.24,  (max)
03/06 03Z,   0.20,  10.06,   9.94,  99.90,  -0.32,
03/06 04Z,   0.20,   9.00,   8.92,  99.90,  -0.28,
03/06 05Z,   0.20,   7.31,   7.35,  99.90,  -0.16,
03/06 06Z,   0.20,   5.36,   5.33,  99.90,  -0.23,
03/06 07Z,   0.20,   3.69,   3.54,  99.90,  -0.35,
03/06 08Z,   0.20,   2.88,   2.70,  99.90,  -0.38,  (min)
03/06 09Z,   0.10,   3.24,   3.06,  99.90,  -0.28,
03/06 10Z,   0.10,   4.62,   4.50,  99.90,  -0.22,
03/06 11Z,   0.10,   6.66,   6.42,  99.90,  -0.34,
03/06 12Z,   0.10,   8.86,   8.65,  99.90,  -0.31,
03/06 13Z,   0.10,  10.69,  10.50,  99.90,  -0.29,
03/06 14Z,   0.10,  11.66,  11.52,  99.90,  -0.24,  (max)
03/06 15Z,   0.10,  11.55,  11.31,  99.90,  -0.34,
03/06 16Z,   0.10,  10.39,  10.23,  99.90,  -0.26,
03/06 17Z,   0.10,   8.44,   8.45,  99.90,  -0.09,
03/06 18Z,   0.00,   6.01,   6.04,  99.90,   0.03,
03/06 19Z,   0.00,   3.64,   3.61,  99.90,  -0.03,
03/06 20Z,   0.00,   1.96,   1.97,  99.90,   0.01,
03/06 21Z,   0.00,   1.46,   1.44,  99.90,  -0.02,  (min)
03/06 22Z,   0.00,   2.18,   2.25,  99.90,   0.07,
03/06 23Z,   0.00,   3.83,   3.83,  99.90,   0.00,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/07 00Z,   0.00,   5.94,  99.90,   5.93,  -0.01,
03/07 01Z,   0.00,   8.00,  99.90,   7.98,  -0.02,
03/07 02Z,   0.00,   9.50,  99.90,   9.47,  -0.03,
03/07 03Z,   0.00,  10.11,  99.90,  10.07,  -0.05,  (max)
03/07 04Z,   0.00,   9.81,  99.90,   9.76,  -0.06,
03/07 05Z,   0.00,   8.79,  99.90,   8.72,  -0.07,
03/07 06Z,   0.00,   7.31,  99.90,   7.23,  -0.08,
03/07 07Z,   0.00,   5.74,  99.90,   5.65,  -0.09,
03/07 08Z,   0.00,   4.56,  99.90,   4.46,  -0.10,
03/07 09Z,   0.00,   4.23,  99.90,   4.12,  -0.12,  (min)
03/07 10Z,   0.00,   4.89,  99.90,   4.76,  -0.13,
03/07 11Z,   0.00,   6.30,  99.90,   6.16,  -0.14,
03/07 12Z,   0.00,   8.10,  99.90,   7.96,  -0.14,
03/07 13Z,   0.00,   9.84,  99.90,   9.70,  -0.14,
03/07 14Z,   0.00,  11.07,  99.90,  10.93,  -0.14,
03/07 15Z,   0.00,  11.41,  99.90,  11.27,  -0.14,  (max)
03/07 16Z,   0.00,  10.71,  99.90,  10.57,  -0.14,
03/07 17Z,   0.00,   9.11,  99.90,   8.97,  -0.14,
03/07 18Z,   0.10,   6.90,  99.90,   6.86,  -0.14,
03/07 19Z,   0.10,   4.48,  99.90,   4.44,  -0.14,
03/07 20Z,   0.10,   2.37,  99.90,   2.33,  -0.14,
03/07 21Z,   0.10,   1.16,  99.90,   1.12,  -0.14,  (min)
03/07 22Z,   0.10,   1.17,  99.90,   1.13,  -0.14,
03/07 23Z,   0.10,   2.29,  99.90,   2.25,  -0.14,
03/08 00Z,   0.10,   4.14,  99.90,   4.10,  -0.14,
03/08 01Z,   0.10,   6.27,  99.90,   6.23,  -0.14,
03/08 02Z,   0.10,   8.19,  99.90,   8.15,  -0.14,
03/08 03Z,   0.10,   9.49,  99.90,   9.45,  -0.14,
03/08 04Z,   0.10,   9.94,  99.90,   9.90,  -0.14,  (max)
03/08 05Z,   0.10,   9.60,  99.90,   9.56,  -0.14,
03/08 06Z,   0.10,   8.71,  99.90,   8.67,  -0.14,
03/08 07Z,   0.10,   7.53,  99.90,   7.49,  -0.14,
03/08 08Z,   0.10,   6.37,  99.90,   6.33,  -0.14,
03/08 09Z,   0.10,   5.64,  99.90,   5.60,  -0.14,  (min)
03/08 10Z,   0.20,   5.65,  99.90,   5.71,  -0.14,
03/08 11Z,   0.20,   6.40,  99.90,   6.46,  -0.14,
03/08 12Z,   0.20,   7.64,  99.90,   7.70,  -0.14,
03/08 13Z,   0.20,   9.04,  99.90,   9.10,  -0.14,
03/08 14Z,   0.20,  10.25,  99.90,  10.31,  -0.14,
03/08 15Z,   0.20,  10.91,  99.90,  10.97,  -0.14,  (max)
03/08 16Z,   0.30,  10.72,  99.90,  10.88,  -0.14,
03/08 17Z,   0.30,   9.61,  99.90,   9.77,  -0.14,
03/08 18Z,   0.40,   7.78,  99.90,   8.04,  -0.14,
03/08 19Z,   0.40,   5.55,  99.90,   5.81,  -0.14,
03/08 20Z,   0.50,   3.31,  99.90,   3.67,  -0.14,
03/08 21Z,   0.50,   1.58,  99.90,   1.94,  -0.14,
03/08 22Z,   0.50,   0.83,  99.90,   1.19,  -0.14,  (min)
03/08 23Z,   0.50,   1.25,  99.90,   1.61,  -0.14,
03/09 00Z,   0.50,   2.61,  99.90,   2.97,  -0.14,
03/09 01Z,   0.50,   4.51,  99.90,   4.87,  -0.14,
03/09 02Z,   0.50,   6.53,  99.90,   6.89,  -0.14,
03/09 03Z,   0.50,   8.26,  99.90,   8.62,  -0.14,
03/09 04Z,   0.50,   9.37,  99.90,   9.73,  -0.14,
03/09 05Z,   0.50,   9.72,  99.90,  10.08,  -0.14,  (max)
03/09 06Z,   0.50,   9.44,  99.90,   9.81,  -0.14,
03/09 07Z,   0.50,   8.77,  99.90,   9.13,  -0.14,
03/09 08Z,   0.50,   7.93,  99.90,   8.29,  -0.14,
03/09 09Z,   0.50,   7.15,  99.90,   7.51,  -0.14,
03/09 10Z,   0.40,   6.75,  99.90,   7.01,  -0.14,  (min)
03/09 11Z,   0.40,   6.91,  99.90,   7.17,  -0.14,
03/09 12Z,   0.40,   7.57,  99.90,   7.83,  -0.14,
03/09 13Z,   0.40,   8.49,  99.90,   8.75,  -0.14,
03/09 14Z,   0.40,   9.43,  99.90,   9.69,  -0.14,
03/09 15Z,   0.40,  10.15,  99.90,  10.41,  -0.14,
03/09 16Z,   0.40,  10.35,  99.90,  10.62,  -0.14,  (max)
03/09 17Z,   0.40,   9.80,  99.90,  10.06,  -0.14,
03/09 18Z,   0.40,   8.50,  99.90,   8.76,  -0.14,
03/09 19Z,   0.40,   6.65,  99.90,   6.91,  -0.14,
03/09 20Z,   0.40,   4.56,  99.90,   4.82,  -0.14,
03/09 21Z,   0.40,   2.62,  99.90,   2.88,  -0.14,
03/09 22Z,   0.40,   1.27,  99.90,   1.53,  -0.14,
03/09 23Z,   0.50,   0.89,  99.90,   1.25,  -0.14,  (min)
03/10 00Z,   0.50,   1.54,  99.90,   1.90,  -0.14,
03/10 01Z,   0.50,   2.97,  99.90,   3.33,  -0.14,
03/10 02Z,   0.50,   4.77,  99.90,   5.13,  -0.14,
03/10 03Z,   0.50,   6.62,  99.90,   6.98,  -0.14,
03/10 04Z,   0.50,   8.17,  99.90,   8.53,  -0.14,
03/10 05Z,   0.50,   9.16,  99.90,   9.52,  -0.14,
03/10 06Z,   0.50,   9.51,  99.90,   9.87,  -0.14,  (max)
03/10 07Z,   0.50,   9.39,  99.90,   9.75,  -0.14,
03/10 08Z,   0.40,   8.99,  99.90,   9.25,  -0.14,
03/10 09Z,   0.40,   8.45,  99.90,   8.71,  -0.14,
03/10 10Z,   0.40,   7.96,  99.90,   8.22,  -0.14,
03/10 11Z,   0.30,   7.72,  99.90,   7.89,  -0.14,  (min)
03/10 12Z,   0.30,   7.86,  99.90,   8.02,  -0.14,
03/10 13Z,   0.30,   8.28,  99.90,   8.44,  -0.14,
03/10 14Z,   0.30,   8.82,  99.90,   8.98,  -0.14,
03/10 15Z,   0.20,   9.34,  99.90,   9.40,  -0.14,
03/10 16Z,   0.20,   9.69,  99.90,   9.75,  -0.14,  (max)
03/10 17Z,   0.20,   9.62,  99.90,   9.68,  -0.14,
03/10 18Z,   0.20,   8.92,  99.90,   8.98,  -0.14,