EXTRA-TROPICAL  STORM  SURGE
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Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
Mid-Atlantic
Southeast
Gulf
Northwest
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
#Friday Harbor, WA : 08/17/2026 20:22:11 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/16 00Z,   0.30,   5.03,   5.00,  99.90,  -0.33,
08/16 01Z,   0.30,   6.42,   6.36,  99.90,  -0.36,
08/16 02Z,   0.30,   7.45,   7.42,  99.90,  -0.33,
08/16 03Z,   0.30,   7.90,   7.90,  99.90,  -0.30,  (max)
08/16 04Z,   0.30,   7.64,   7.75,  99.90,  -0.19,
08/16 05Z,   0.30,   6.74,   7.01,  99.90,  -0.03,
08/16 06Z,   0.40,   5.46,   5.76,  99.90,  -0.10,
08/16 07Z,   0.30,   4.18,   4.38,  99.90,  -0.10,
08/16 08Z,   0.30,   3.24,   3.38,  99.90,  -0.16,
08/16 09Z,   0.30,   2.80,   2.91,  99.90,  -0.19,  (min)
08/16 10Z,   0.30,   2.88,   2.99,  99.90,  -0.19,
08/16 11Z,   0.30,   3.36,   3.42,  99.90,  -0.24,
08/16 12Z,   0.20,   4.09,   4.14,  99.90,  -0.15,
08/16 13Z,   0.20,   4.88,   4.96,  99.90,  -0.12,
08/16 14Z,   0.20,   5.51,   5.56,  99.90,  -0.15,
08/16 15Z,   0.20,   5.78,   5.77,  99.90,  -0.21,  (max)
08/16 16Z,   0.10,   5.56,   5.61,  99.90,  -0.05,
08/16 17Z,   0.10,   4.88,   5.00,  99.90,   0.02,
08/16 18Z,   0.10,   3.91,   4.05,  99.90,   0.04,
08/16 19Z,   0.10,   2.98,   3.07,  99.90,  -0.01,
08/16 20Z,   0.00,   2.39,   2.38,  99.90,  -0.01,
08/16 21Z,   0.10,   2.33,   2.31,  99.90,  -0.12,  (min)
08/16 22Z,   0.10,   2.80,   2.75,  99.90,  -0.15,
08/16 23Z,   0.10,   3.71,   3.56,  99.90,  -0.25,
08/17 00Z,   0.10,   4.88,   4.80,  99.90,  -0.18,
08/17 01Z,   0.20,   6.09,   6.03,  99.90,  -0.26,
08/17 02Z,   0.20,   7.11,   7.03,  99.90,  -0.28,
08/17 03Z,   0.20,   7.71,   7.65,  99.90,  -0.26,
08/17 04Z,   0.20,   7.70,   7.70,  99.90,  -0.20,  (max)
08/17 05Z,   0.20,   7.04,   7.15,  99.90,  -0.09,
08/17 06Z,   0.30,   5.85,   6.04,  99.90,  -0.11,
08/17 07Z,   0.20,   4.44,   4.65,  99.90,   0.01,
08/17 08Z,   0.20,   3.17,   3.34,  99.90,  -0.03,
08/17 09Z,   0.30,   2.31,   2.43,  99.90,  -0.18,
08/17 10Z,   0.30,   1.99,   2.03,  99.90,  -0.26,  (min)
08/17 11Z,   0.30,   2.18,   2.23,  99.90,  -0.25,
08/17 12Z,   0.20,   2.76,   2.83,  99.90,  -0.13,
08/17 13Z,   0.20,   3.58,   3.60,  99.90,  -0.18,
08/17 14Z,   0.20,   4.45,   4.44,  99.90,  -0.21,
08/17 15Z,   0.20,   5.18,   5.16,  99.90,  -0.22,
08/17 16Z,   0.20,   5.57,   5.56,  99.90,  -0.21,
08/17 17Z,   0.20,   5.54,   5.58,  99.90,  -0.16,  (max)
08/17 18Z,   0.20,   5.11,   5.27,  99.90,  -0.04,
08/17 19Z,   0.20,   4.48,   4.58,  99.90,  -0.10,
08/17 20Z,   0.20,   3.90,   3.96,  99.90,  -0.14,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/17 21Z,   0.20,   3.60,  99.90,   3.66,  -0.14,  (min)
08/17 22Z,   0.20,   3.70,  99.90,   3.76,  -0.14,
08/17 23Z,   0.20,   4.20,  99.90,   4.26,  -0.14,
08/18 00Z,   0.20,   4.98,  99.90,   5.04,  -0.14,
08/18 01Z,   0.20,   5.90,  99.90,   5.97,  -0.13,
08/18 02Z,   0.30,   6.77,  99.90,   6.94,  -0.13,
08/18 03Z,   0.30,   7.40,  99.90,   7.57,  -0.13,
08/18 04Z,   0.30,   7.58,  99.90,   7.75,  -0.13,  (max)
08/18 05Z,   0.30,   7.20,  99.90,   7.37,  -0.13,
08/18 06Z,   0.30,   6.25,  99.90,   6.42,  -0.13,
08/18 07Z,   0.30,   4.91,  99.90,   5.08,  -0.13,
08/18 08Z,   0.30,   3.49,  99.90,   3.66,  -0.13,
08/18 09Z,   0.30,   2.30,  99.90,   2.47,  -0.13,
08/18 10Z,   0.30,   1.57,  99.90,   1.74,  -0.13,
08/18 11Z,   0.30,   1.37,  99.90,   1.54,  -0.13,  (min)
08/18 12Z,   0.30,   1.66,  99.90,   1.84,  -0.13,
08/18 13Z,   0.40,   2.33,  99.90,   2.61,  -0.13,
08/18 14Z,   0.30,   3.22,  99.90,   3.40,  -0.13,
08/18 15Z,   0.30,   4.16,  99.90,   4.33,  -0.13,
08/18 16Z,   0.30,   4.97,  99.90,   5.14,  -0.13,
08/18 17Z,   0.30,   5.50,  99.90,   5.67,  -0.13,
08/18 18Z,   0.30,   5.66,  99.90,   5.84,  -0.13,  (max)
08/18 19Z,   0.20,   5.51,  99.90,   5.58,  -0.13,
08/18 20Z,   0.30,   5.18,  99.90,   5.35,  -0.13,
08/18 21Z,   0.30,   4.88,  99.90,   5.05,  -0.13,
08/18 22Z,   0.30,   4.76,  99.90,   4.94,  -0.13,  (min)
08/18 23Z,   0.20,   4.92,  99.90,   4.99,  -0.13,
08/19 00Z,   0.30,   5.32,  99.90,   5.49,  -0.13,
08/19 01Z,   0.30,   5.90,  99.90,   6.07,  -0.13,
08/19 02Z,   0.30,   6.53,  99.90,   6.70,  -0.13,
08/19 03Z,   0.30,   7.06,  99.90,   7.23,  -0.13,
08/19 04Z,   0.30,   7.32,  99.90,   7.50,  -0.13,  (max)
08/19 05Z,   0.30,   7.17,  99.90,   7.34,  -0.13,
08/19 06Z,   0.30,   6.52,  99.90,   6.69,  -0.13,
08/19 07Z,   0.30,   5.42,  99.90,   5.59,  -0.13,
08/19 08Z,   0.40,   4.06,  99.90,   4.33,  -0.13,
08/19 09Z,   0.40,   2.71,  99.90,   2.98,  -0.13,
08/19 10Z,   0.30,   1.64,  99.90,   1.81,  -0.13,
08/19 11Z,   0.30,   1.04,  99.90,   1.21,  -0.13,
08/19 12Z,   0.30,   0.95,  99.90,   1.12,  -0.13,  (min)
08/19 13Z,   0.30,   1.32,  99.90,   1.49,  -0.13,
08/19 14Z,   0.30,   2.05,  99.90,   2.22,  -0.13,
08/19 15Z,   0.30,   2.99,  99.90,   3.16,  -0.13,
08/19 16Z,   0.30,   3.98,  99.90,   4.15,  -0.13,
08/19 17Z,   0.30,   4.88,  99.90,   5.05,  -0.13,
08/19 18Z,   0.30,   5.54,  99.90,   5.72,  -0.13,
08/19 19Z,   0.30,   5.91,  99.90,   6.08,  -0.13,
08/19 20Z,   0.30,   6.00,  99.90,   6.17,  -0.13,  (max)
08/19 21Z,   0.30,   5.92,  99.90,   6.09,  -0.13,
08/19 22Z,   0.30,   5.79,  99.90,   5.96,  -0.13,
08/19 23Z,   0.30,   5.74,  99.90,   5.91,  -0.13,  (min)
08/20 00Z,   0.30,   5.84,  99.90,   6.01,  -0.13,
08/20 01Z,   0.30,   6.08,  99.90,   6.25,  -0.13,
08/20 02Z,   0.30,   6.42,  99.90,   6.60,  -0.13,
08/20 03Z,   0.30,   6.78,  99.90,   6.95,  -0.13,
08/20 04Z,   0.30,   7.01,  99.90,   7.19,  -0.13,  (max)
08/20 05Z,   0.30,   7.00,  99.90,   7.17,  -0.13,
08/20 06Z,   0.30,   6.63,  99.90,   6.80,  -0.13,
08/20 07Z,   0.40,   5.84,  99.90,   6.11,  -0.13,
08/20 08Z,   0.30,   4.70,  99.90,   4.87,  -0.13,
08/20 09Z,   0.30,   3.39,  99.90,   3.56,  -0.13,
08/20 10Z,   0.30,   2.14,  99.90,   2.32,  -0.13,
08/20 11Z,   0.30,   1.19,  99.90,   1.36,  -0.13,
08/20 12Z,   0.40,   0.68,  99.90,   0.95,  -0.13,
08/20 13Z,   0.40,   0.66,  99.90,   0.93,  -0.13,  (min)
08/20 14Z,   0.30,   1.08,  99.90,   1.25,  -0.13,
08/20 15Z,   0.30,   1.85,  99.90,   2.02,  -0.13,
08/20 16Z,   0.30,   2.82,  99.90,   3.00,  -0.13,
08/20 17Z,   0.40,   3.88,  99.90,   4.15,  -0.13,
08/20 18Z,   0.30,   4.86,  99.90,   5.04,  -0.13,
08/20 19Z,   0.30,   5.67,  99.90,   5.84,  -0.13,
08/20 20Z,   0.30,   6.22,  99.90,   6.39,  -0.13,
08/20 21Z,   0.30,   6.50,  99.90,   6.67,  -0.13,
08/20 22Z,   0.30,   6.56,  99.90,   6.73,  -0.13,  (max)
08/20 23Z,   0.30,   6.50,  99.90,   6.67,  -0.13,
08/21 00Z,   0.30,   6.43,  99.90,   6.60,  -0.13,
08/21 01Z,   0.30,   6.41,  99.90,   6.58,  -0.13,  (min)
08/21 02Z,   0.30,   6.48,  99.90,   6.65,  -0.13,
08/21 03Z,   0.40,   6.61,  99.90,   6.89,  -0.13,
08/21 04Z,   0.30,   6.75,  99.90,   6.92,  -0.13,
08/21 05Z,   0.30,   6.78,  99.90,   6.95,  -0.13,  (max)
08/21 06Z,   0.40,   6.60,  99.90,   6.87,  -0.13,
08/21 07Z,   0.40,   6.11,  99.90,   6.39,  -0.13,
08/21 08Z,   0.30,   5.29,  99.90,   5.46,  -0.13,
08/21 09Z,   0.30,   4.18,  99.90,   4.35,  -0.13,
08/21 10Z,   0.30,   2.94,  99.90,   3.11,  -0.13,
08/21 11Z,   0.30,   1.77,  99.90,   1.94,  -0.13,
08/21 12Z,   0.40,   0.88,  99.90,   1.15,  -0.13,