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 : 07/22/2026 22:21:56 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/21 06Z,   0.70,  11.42,  11.81,  99.90,  -0.31,  (max)
07/21 07Z,   0.70,  10.57,  10.89,  99.90,  -0.38,
07/21 08Z,   0.70,   9.00,   9.35,  99.90,  -0.35,
07/21 09Z,   0.70,   6.93,   7.10,  99.90,  -0.53,
07/21 10Z,   0.70,   4.74,   4.79,  99.90,  -0.65,
07/21 11Z,   0.70,   2.95,   3.02,  99.90,  -0.63,
07/21 12Z,   0.60,   1.97,   1.99,  99.90,  -0.58,  (min)
07/21 13Z,   0.60,   1.91,   2.03,  99.90,  -0.48,
07/21 14Z,   0.60,   2.62,   2.89,  99.90,  -0.33,
07/21 15Z,   0.60,   3.89,   4.15,  99.90,  -0.34,
07/21 16Z,   0.60,   5.39,   5.77,  99.90,  -0.22,
07/21 17Z,   0.60,   6.74,   7.23,  99.90,  -0.11,
07/21 18Z,   0.60,   7.60,   8.13,  99.90,  -0.07,
07/21 19Z,   0.60,   7.89,   8.48,  99.90,  -0.01,  (max)
07/21 20Z,   0.60,   7.69,   8.24,  99.90,  -0.05,
07/21 21Z,   0.60,   7.13,   7.79,  99.90,   0.06,
07/21 22Z,   0.60,   6.38,   7.12,  99.90,   0.14,
07/21 23Z,   0.60,   5.74,   6.45,  99.90,   0.11,
07/22 00Z,   0.70,   5.55,   6.25,  99.90,   0.00,  (min)
07/22 01Z,   0.70,   5.94,   6.61,  99.90,  -0.03,
07/22 02Z,   0.70,   6.83,   7.54,  99.90,   0.01,
07/22 03Z,   0.70,   8.05,   8.78,  99.90,   0.03,
07/22 04Z,   0.70,   9.38,  10.02,  99.90,  -0.06,
07/22 05Z,   0.70,  10.49,  11.09,  99.90,  -0.10,
07/22 06Z,   0.80,  11.01,  11.48,  99.90,  -0.33,  (max)
07/22 07Z,   0.80,  10.72,  11.11,  99.90,  -0.41,
07/22 08Z,   0.80,   9.65,  10.06,  99.90,  -0.39,
07/22 09Z,   0.80,   7.97,   8.36,  99.90,  -0.41,
07/22 10Z,   0.80,   5.88,   6.11,  99.90,  -0.57,
07/22 11Z,   0.80,   3.77,   3.92,  99.90,  -0.65,
07/22 12Z,   0.70,   2.10,   2.24,  99.90,  -0.56,
07/22 13Z,   0.70,   1.24,   1.44,  99.90,  -0.50,  (min)
07/22 14Z,   0.70,   1.26,   1.60,  99.90,  -0.36,
07/22 15Z,   0.70,   2.04,   2.46,  99.90,  -0.28,
07/22 16Z,   0.70,   3.38,   3.85,  99.90,  -0.23,
07/22 17Z,   0.70,   4.99,   5.53,  99.90,  -0.16,
07/22 18Z,   0.80,   6.49,   7.10,  99.90,  -0.19,
07/22 19Z,   0.80,   7.58,   8.22,  99.90,  -0.16,
07/22 20Z,   0.80,   8.19,   8.83,  99.90,  -0.16,
07/22 21Z,   0.80,   8.38,   8.98,  99.90,  -0.20,  (max)
07/22 22Z,   0.80,   8.21,   8.80,  99.90,  -0.21,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/22 23Z,   0.80,   7.77,  99.90,   8.36,  -0.21,
07/23 00Z,   0.80,   7.30,  99.90,   7.89,  -0.21,
07/23 01Z,   0.80,   7.08,  99.90,   7.67,  -0.20,  (min)
07/23 02Z,   0.80,   7.23,  99.90,   7.83,  -0.20,
07/23 03Z,   0.80,   7.75,  99.90,   8.35,  -0.20,
07/23 04Z,   0.80,   8.55,  99.90,   9.15,  -0.20,
07/23 05Z,   0.80,   9.48,  99.90,  10.08,  -0.20,
07/23 06Z,   0.80,  10.23,  99.90,  10.83,  -0.20,
07/23 07Z,   0.80,  10.45,  99.90,  11.06,  -0.19,  (max)
07/23 08Z,   0.90,   9.96,  99.90,  10.67,  -0.19,
07/23 09Z,   0.90,   8.78,  99.90,   9.49,  -0.19,
07/23 10Z,   0.90,   7.06,  99.90,   7.77,  -0.19,
07/23 11Z,   0.90,   4.99,  99.90,   5.70,  -0.19,
07/23 12Z,   0.90,   2.94,  99.90,   3.65,  -0.19,
07/23 13Z,   0.90,   1.38,  99.90,   2.09,  -0.19,
07/23 14Z,   0.90,   0.62,  99.90,   1.33,  -0.19,  (min)
07/23 15Z,   0.90,   0.74,  99.90,   1.46,  -0.19,
07/23 16Z,   0.90,   1.64,  99.90,   2.35,  -0.19,
07/23 17Z,   0.90,   3.13,  99.90,   3.84,  -0.19,
07/23 18Z,   0.90,   4.90,  99.90,   5.61,  -0.19,
07/23 19Z,   0.90,   6.57,  99.90,   7.29,  -0.19,
07/23 20Z,   0.90,   7.88,  99.90,   8.59,  -0.19,
07/23 21Z,   0.90,   8.76,  99.90,   9.47,  -0.19,
07/23 22Z,   0.90,   9.23,  99.90,   9.95,  -0.19,
07/23 23Z,   0.90,   9.29,  99.90,  10.00,  -0.19,  (max)
07/24 00Z,   0.90,   8.96,  99.90,   9.67,  -0.19,
07/24 01Z,   0.90,   8.47,  99.90,   9.18,  -0.19,
07/24 02Z,   0.90,   8.08,  99.90,   8.79,  -0.19,
07/24 03Z,   0.90,   7.95,  99.90,   8.66,  -0.19,  (min)
07/24 04Z,   0.90,   8.13,  99.90,   8.84,  -0.19,
07/24 05Z,   0.90,   8.63,  99.90,   9.34,  -0.19,
07/24 06Z,   0.90,   9.30,  99.90,  10.02,  -0.19,
07/24 07Z,   0.90,   9.85,  99.90,  10.56,  -0.19,
07/24 08Z,   0.90,   9.91,  99.90,  10.62,  -0.19,  (max)
07/24 09Z,   0.90,   9.30,  99.90,  10.01,  -0.19,
07/24 10Z,   0.90,   8.06,  99.90,   8.77,  -0.19,
07/24 11Z,   0.90,   6.30,  99.90,   7.02,  -0.19,
07/24 12Z,   0.90,   4.23,  99.90,   4.94,  -0.19,
07/24 13Z,   0.90,   2.21,  99.90,   2.93,  -0.19,
07/24 14Z,   0.90,   0.73,  99.90,   1.45,  -0.19,
07/24 15Z,   0.90,   0.10,  99.90,   0.81,  -0.19,  (min)
07/24 16Z,   0.90,   0.38,  99.90,   1.09,  -0.19,
07/24 17Z,   0.90,   1.47,  99.90,   2.18,  -0.19,
07/24 18Z,   0.90,   3.16,  99.90,   3.87,  -0.19,
07/24 19Z,   0.90,   5.13,  99.90,   5.84,  -0.19,
07/24 20Z,   0.90,   6.97,  99.90,   7.68,  -0.19,
07/24 21Z,   0.90,   8.44,  99.90,   9.15,  -0.19,
07/24 22Z,   0.90,   9.48,  99.90,  10.19,  -0.19,
07/24 23Z,   0.90,  10.07,  99.90,  10.78,  -0.19,
07/25 00Z,   0.90,  10.15,  99.90,  10.86,  -0.19,  (max)
07/25 01Z,   0.90,   9.75,  99.90,  10.46,  -0.19,
07/25 02Z,   1.00,   9.10,  99.90,   9.91,  -0.19,
07/25 03Z,   1.00,   8.50,  99.90,   9.31,  -0.19,
07/25 04Z,   1.00,   8.14,  99.90,   8.95,  -0.19,
07/25 05Z,   1.00,   8.13,  99.90,   8.94,  -0.19,  (min)
07/25 06Z,   1.00,   8.49,  99.90,   9.30,  -0.19,
07/25 07Z,   1.00,   9.08,  99.90,   9.89,  -0.19,
07/25 08Z,   1.00,   9.53,  99.90,  10.34,  -0.19,  (max)
07/25 09Z,   1.00,   9.50,  99.90,  10.31,  -0.19,
07/25 10Z,   1.00,   8.81,  99.90,   9.62,  -0.19,
07/25 11Z,   1.00,   7.50,  99.90,   8.31,  -0.19,
07/25 12Z,   1.00,   5.66,  99.90,   6.47,  -0.19,
07/25 13Z,   1.00,   3.52,  99.90,   4.33,  -0.19,
07/25 14Z,   1.00,   1.51,  99.90,   2.32,  -0.19,
07/25 15Z,   1.00,   0.13,  99.90,   0.94,  -0.19,
07/25 16Z,   1.00,  -0.33,  99.90,   0.48,  -0.19,  (min)
07/25 17Z,   1.00,   0.19,  99.90,   1.00,  -0.19,
07/25 18Z,   1.00,   1.54,  99.90,   2.35,  -0.19,
07/25 19Z,   1.00,   3.49,  99.90,   4.30,  -0.19,
07/25 20Z,   1.00,   5.65,  99.90,   6.46,  -0.19,
07/25 21Z,   1.00,   7.61,  99.90,   8.42,  -0.19,
07/25 22Z,   1.00,   9.14,  99.90,   9.95,  -0.19,
07/25 23Z,   1.00,  10.19,  99.90,  11.01,  -0.19,
07/26 00Z,   1.00,  10.72,  99.90,  11.53,  -0.19,  (max)
07/26 01Z,   1.00,  10.64,  99.90,  11.45,  -0.19,
07/26 02Z,   1.00,  10.03,  99.90,  10.84,  -0.19,
07/26 03Z,   1.00,   9.19,  99.90,  10.00,  -0.19,
07/26 04Z,   1.00,   8.43,  99.90,   9.24,  -0.19,
07/26 05Z,   1.00,   7.99,  99.90,   8.80,  -0.19,
07/26 06Z,   1.00,   7.96,  99.90,   8.77,  -0.19,  (min)
07/26 07Z,   1.00,   8.35,  99.90,   9.16,  -0.19,
07/26 08Z,   1.00,   8.96,  99.90,   9.77,  -0.19,
07/26 09Z,   1.00,   9.39,  99.90,  10.20,  -0.19,  (max)
07/26 10Z,   0.90,   9.27,  99.90,   9.98,  -0.19,
07/26 11Z,   0.90,   8.46,  99.90,   9.18,  -0.19,
07/26 12Z,   0.90,   7.00,  99.90,   7.71,  -0.19,
07/26 13Z,  99.90,   5.01,  99.90,  99.90,  -0.19,
07/26 14Z,  99.90,   2.77,  99.90,  99.90,  -0.19,
07/26 15Z,  99.90,   0.77,  99.90,  99.90,  -0.19,
07/26 16Z,  99.90,  -0.46,  99.90,  99.90,  -0.19,
07/26 17Z,  99.90,  -0.64,  99.90,  99.90,  -0.19,
07/26 18Z,  99.90,   0.20,  99.90,  99.90,  -0.19,