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 : 07/11/2026 23:22:38 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/10 06Z,   0.60,  10.75,  11.04,  99.90,  -0.31,
07/10 07Z,   0.60,  11.41,  11.68,  99.90,  -0.33,  (max)
07/10 08Z,   0.60,  11.34,  11.59,  99.90,  -0.35,
07/10 09Z,   0.70,  10.35,  10.62,  99.90,  -0.43,
07/10 10Z,   0.70,   8.54,   8.93,  99.90,  -0.31,
07/10 11Z,   0.70,   6.15,   6.52,  99.90,  -0.33,
07/10 12Z,   0.50,   3.54,   3.77,  99.90,  -0.27,
07/10 13Z,   0.50,   1.12,   1.42,  99.90,  -0.20,
07/10 14Z,   0.50,  -0.57,  -0.13,  99.90,  -0.06,
07/10 15Z,   0.60,  -1.10,  -0.47,  99.90,   0.03,  (min)
07/10 16Z,   0.60,  -0.43,   0.28,  99.90,   0.11,
07/10 17Z,   0.60,   1.17,   1.76,  99.90,  -0.01,
07/10 18Z,   0.50,   3.30,   3.91,  99.90,   0.11,
07/10 19Z,   0.50,   5.54,   6.26,  99.90,   0.22,
07/10 20Z,   0.50,   7.47,   8.21,  99.90,   0.24,
07/10 21Z,   0.50,   8.80,   9.54,  99.90,   0.24,
07/10 22Z,   0.50,   9.48,  10.18,  99.90,   0.20,
07/10 23Z,   0.50,   9.64,  10.29,  99.90,   0.15,  (max)
07/11 00Z,   0.60,   9.40,  10.05,  99.90,   0.05,
07/11 01Z,   0.70,   8.88,   9.58,  99.90,  -0.00,
07/11 02Z,   0.70,   8.33,   9.04,  99.90,   0.01,
07/11 03Z,   0.70,   8.09,   8.78,  99.90,  -0.01,  (min)
07/11 04Z,   0.70,   8.34,   8.92,  99.90,  -0.12,
07/11 05Z,   0.70,   9.04,   9.55,  99.90,  -0.19,
07/11 06Z,   0.80,   9.98,  10.45,  99.90,  -0.33,
07/11 07Z,   0.80,  10.89,  11.19,  99.90,  -0.50,
07/11 08Z,   0.80,  11.40,  11.63,  99.90,  -0.57,  (max)
07/11 09Z,   0.80,  11.15,  11.43,  99.90,  -0.52,
07/11 10Z,   0.70,   9.97,  10.29,  99.90,  -0.38,
07/11 11Z,   0.70,   7.94,   8.38,  99.90,  -0.26,
07/11 12Z,   0.60,   5.34,   5.75,  99.90,  -0.19,
07/11 13Z,   0.60,   2.50,   2.80,  99.90,  -0.30,
07/11 14Z,   0.60,  -0.08,   0.38,  99.90,  -0.14,
07/11 15Z,   0.60,  -1.81,  -1.30,  99.90,  -0.09,
07/11 16Z,   0.60,  -2.23,  -1.62,  99.90,   0.01,  (min)
07/11 17Z,   0.60,  -1.32,  -0.64,  99.90,   0.08,
07/11 18Z,   0.50,   0.63,   1.15,  99.90,   0.02,
07/11 19Z,   0.50,   3.16,   3.73,  99.90,   0.07,
07/11 20Z,   0.50,   5.78,   6.38,  99.90,   0.10,
07/11 21Z,   0.50,   8.02,   8.59,  99.90,   0.07,
07/11 22Z,   0.50,   9.58,  10.08,  99.90,   0.00,
07/11 23Z,   0.50,  10.42,  10.79,  99.90,  -0.13,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/12 00Z,   0.40,  10.66,  99.90,  10.93,  -0.13,  (max)
07/12 01Z,   0.40,  10.37,  99.90,  10.64,  -0.13,
07/12 02Z,   0.40,   9.69,  99.90,   9.96,  -0.13,
07/12 03Z,   0.40,   8.92,  99.90,   9.19,  -0.13,
07/12 04Z,   0.40,   8.46,  99.90,   8.73,  -0.13,  (min)
07/12 05Z,   0.40,   8.55,  99.90,   8.82,  -0.13,
07/12 06Z,   0.40,   9.15,  99.90,   9.42,  -0.13,
07/12 07Z,   0.40,  10.05,  99.90,  10.32,  -0.12,
07/12 08Z,   0.40,  10.93,  99.90,  11.21,  -0.12,
07/12 09Z,   0.40,  11.39,  99.90,  11.67,  -0.12,  (max)
07/12 10Z,   0.40,  11.04,  99.90,  11.32,  -0.12,
07/12 11Z,   0.40,   9.70,  99.90,   9.98,  -0.12,
07/12 12Z,   0.40,   7.48,  99.90,   7.76,  -0.12,
07/12 13Z,   0.40,   4.67,  99.90,   4.95,  -0.12,
07/12 14Z,   0.40,   1.62,  99.90,   1.90,  -0.12,
07/12 15Z,   0.40,  -1.10,  99.90,  -0.82,  -0.12,
07/12 16Z,   0.30,  -2.81,  99.90,  -2.63,  -0.12,
07/12 17Z,   0.30,  -3.07,  99.90,  -2.89,  -0.12,  (min)
07/12 18Z,   0.30,  -1.86,  99.90,  -1.68,  -0.12,
07/12 19Z,   0.30,   0.44,  99.90,   0.62,  -0.12,
07/12 20Z,   0.30,   3.33,  99.90,   3.51,  -0.12,
07/12 21Z,   0.30,   6.24,  99.90,   6.42,  -0.12,
07/12 22Z,   0.30,   8.68,  99.90,   8.86,  -0.12,
07/12 23Z,   0.30,  10.35,  99.90,  10.53,  -0.12,
07/13 00Z,   0.30,  11.22,  99.90,  11.40,  -0.12,
07/13 01Z,   0.30,  11.38,  99.90,  11.56,  -0.12,  (max)
07/13 02Z,   0.30,  10.91,  99.90,  11.09,  -0.12,
07/13 03Z,   0.30,   9.98,  99.90,  10.16,  -0.12,
07/13 04Z,   0.30,   8.98,  99.90,   9.16,  -0.12,
07/13 05Z,   0.30,   8.37,  99.90,   8.55,  -0.12,  (min)
07/13 06Z,   0.30,   8.40,  99.90,   8.58,  -0.12,
07/13 07Z,   0.30,   9.02,  99.90,   9.20,  -0.12,
07/13 08Z,   0.30,   9.99,  99.90,  10.17,  -0.12,
07/13 09Z,   0.30,  10.93,  99.90,  11.11,  -0.12,
07/13 10Z,   0.30,  11.39,  99.90,  11.57,  -0.12,  (max)
07/13 11Z,   0.30,  10.96,  99.90,  11.13,  -0.12,
07/13 12Z,   0.30,   9.49,  99.90,   9.67,  -0.12,
07/13 13Z,   0.30,   7.11,  99.90,   7.29,  -0.12,
07/13 14Z,   0.30,   4.11,  99.90,   4.29,  -0.12,
07/13 15Z,   0.30,   0.90,  99.90,   1.08,  -0.12,
07/13 16Z,   0.30,  -1.87,  99.90,  -1.69,  -0.12,
07/13 17Z,   0.30,  -3.49,  99.90,  -3.31,  -0.12,
07/13 18Z,   0.30,  -3.51,  99.90,  -3.33,  -0.12,  (min)
07/13 19Z,   0.30,  -1.99,  99.90,  -1.81,  -0.12,
07/13 20Z,   0.30,   0.64,  99.90,   0.82,  -0.12,
07/13 21Z,   0.30,   3.80,  99.90,   3.98,  -0.12,
07/13 22Z,   0.30,   6.89,  99.90,   7.07,  -0.12,
07/13 23Z,   0.30,   9.39,  99.90,   9.57,  -0.12,
07/14 00Z,   0.30,  11.03,  99.90,  11.21,  -0.12,
07/14 01Z,   0.30,  11.79,  99.90,  11.97,  -0.12,  (max)
07/14 02Z,   0.30,  11.75,  99.90,  11.93,  -0.12,
07/14 03Z,   0.30,  11.01,  99.90,  11.19,  -0.12,
07/14 04Z,   0.30,   9.80,  99.90,   9.98,  -0.12,
07/14 05Z,   0.30,   8.61,  99.90,   8.79,  -0.12,
07/14 06Z,   0.30,   7.93,  99.90,   8.11,  -0.12,  (min)
07/14 07Z,   0.30,   8.01,  99.90,   8.19,  -0.12,
07/14 08Z,   0.30,   8.74,  99.90,   8.92,  -0.12,
07/14 09Z,   0.30,   9.83,  99.90,  10.01,  -0.12,
07/14 10Z,   0.30,  10.85,  99.90,  11.03,  -0.12,
07/14 11Z,   0.30,  11.32,  99.90,  11.50,  -0.12,  (max)
07/14 12Z,   0.30,  10.82,  99.90,  11.00,  -0.12,
07/14 13Z,   0.30,   9.25,  99.90,   9.43,  -0.12,
07/14 14Z,   0.30,   6.75,  99.90,   6.93,  -0.12,
07/14 15Z,   0.30,   3.63,  99.90,   3.81,  -0.12,
07/14 16Z,   0.30,   0.36,  99.90,   0.54,  -0.12,
07/14 17Z,   0.30,  -2.35,  99.90,  -2.17,  -0.12,
07/14 18Z,   0.30,  -3.76,  99.90,  -3.58,  -0.12,  (min)
07/14 19Z,   0.30,  -3.48,  99.90,  -3.30,  -0.12,
07/14 20Z,   0.30,  -1.65,  99.90,  -1.47,  -0.12,
07/14 21Z,   0.20,   1.24,  99.90,   1.32,  -0.12,
07/14 22Z,   0.20,   4.56,  99.90,   4.64,  -0.12,
07/14 23Z,   0.20,   7.69,  99.90,   7.77,  -0.12,
07/15 00Z,   0.20,  10.11,  99.90,  10.19,  -0.12,
07/15 01Z,   0.30,  11.59,  99.90,  11.77,  -0.12,
07/15 02Z,   0.30,  12.12,  99.90,  12.29,  -0.12,  (max)
07/15 03Z,   0.30,  11.78,  99.90,  11.96,  -0.12,
07/15 04Z,   0.30,  10.72,  99.90,  10.90,  -0.12,
07/15 05Z,   0.30,   9.25,  99.90,   9.43,  -0.12,
07/15 06Z,   0.30,   7.92,  99.90,   8.10,  -0.12,
07/15 07Z,   0.30,   7.26,  99.90,   7.44,  -0.12,  (min)
07/15 08Z,   0.30,   7.45,  99.90,   7.62,  -0.12,
07/15 09Z,   0.30,   8.32,  99.90,   8.50,  -0.12,
07/15 10Z,   0.30,   9.54,  99.90,   9.72,  -0.12,
07/15 11Z,   0.30,  10.64,  99.90,  10.82,  -0.12,
07/15 12Z,   0.30,  11.10,  99.90,  11.28,  -0.12,  (max)
07/15 13Z,   0.30,  10.56,  99.90,  10.74,  -0.12,
07/15 14Z,   0.30,   8.92,  99.90,   9.10,  -0.12,
07/15 15Z,   0.30,   6.38,  99.90,   6.56,  -0.12,
07/15 16Z,   0.30,   3.24,  99.90,   3.42,  -0.12,
07/15 17Z,   0.30,   0.04,  99.90,   0.22,  -0.12,
07/15 18Z,   0.30,  -2.46,  99.90,  -2.28,  -0.12,