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
#North Spit, CA : 08/18/2026 11:23:40 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/16 12Z,   0.30,  -2.39,  -1.75,  99.90,   0.34,
08/16 13Z,   0.30,  -3.81,  -3.07,  99.90,   0.44,
08/16 14Z,   0.30,  -5.15,  -4.34,  99.90,   0.51,
08/16 15Z,   0.30,  -6.07,  -5.31,  99.90,   0.46,
08/16 16Z,   0.30,  -6.29,  -5.46,  99.90,   0.53,  (min)
08/16 17Z,   0.30,  -5.71,  -4.81,  99.90,   0.60,
08/16 18Z,   0.20,  -4.55,  -3.66,  99.90,   0.69,
08/16 19Z,   0.20,  -3.14,  -2.35,  99.90,   0.59,
08/16 20Z,   0.30,  -1.76,  -1.02,  99.90,   0.44,
08/16 21Z,   0.30,  -0.68,   0.10,  99.90,   0.48,
08/16 22Z,   0.30,  -0.14,   0.72,  99.90,   0.56,  (max)
08/16 23Z,   0.30,  -0.30,   0.54,  99.90,   0.54,
08/17 00Z,   0.40,  -1.14,  -0.41,  99.90,   0.33,
08/17 01Z,   0.40,  -2.42,  -1.74,  99.90,   0.28,
08/17 02Z,   0.40,  -3.85,  -3.06,  99.90,   0.39,
08/17 03Z,   0.40,  -5.08,  -4.24,  99.90,   0.44,
08/17 04Z,   0.40,  -5.79,  -5.00,  99.90,   0.39,
08/17 05Z,   0.40,  -5.78,  -5.04,  99.90,   0.34,  (min)
08/17 06Z,   0.40,  -5.13,  -4.39,  99.90,   0.34,
08/17 07Z,   0.40,  -4.09,  -3.37,  99.90,   0.32,
08/17 08Z,   0.40,  -2.96,  -2.26,  99.90,   0.30,
08/17 09Z,   0.40,  -1.98,  -1.34,  99.90,   0.24,
08/17 10Z,   0.50,  -1.38,  -0.74,  99.90,   0.14,
08/17 11Z,   0.50,  -1.34,  -0.67,  99.90,   0.17,  (max)
08/17 12Z,   0.40,  -1.90,  -1.17,  99.90,   0.33,
08/17 13Z,   0.40,  -2.86,  -2.07,  99.90,   0.39,
08/17 14Z,   0.40,  -3.96,  -3.15,  99.90,   0.41,
08/17 15Z,   0.40,  -4.91,  -4.07,  99.90,   0.44,
08/17 16Z,   0.40,  -5.45,  -4.57,  99.90,   0.48,  (min)
08/17 17Z,   0.40,  -5.35,  -4.42,  99.90,   0.53,
08/17 18Z,   0.40,  -4.63,  -3.71,  99.90,   0.52,
08/17 19Z,   0.40,  -3.50,  -2.67,  99.90,   0.43,
08/17 20Z,   0.30,  -2.26,  -1.50,  99.90,   0.46,
08/17 21Z,   0.40,  -1.15,  -0.36,  99.90,   0.39,
08/17 22Z,   0.40,  -0.38,   0.46,  99.90,   0.44,
08/17 23Z,   0.40,  -0.16,   0.74,  99.90,   0.50,  (max)
08/18 00Z,   0.50,  -0.57,   0.29,  99.90,   0.36,
08/18 01Z,   0.50,  -1.55,  -0.78,  99.90,   0.27,
08/18 02Z,   0.50,  -2.84,  -2.05,  99.90,   0.29,
08/18 03Z,   0.50,  -4.17,  -3.22,  99.90,   0.45,
08/18 04Z,   0.50,  -5.26,  -4.28,  99.90,   0.48,
08/18 05Z,   0.40,  -5.83,  -4.96,  99.90,   0.47,
08/18 06Z,   0.40,  -5.77,  -5.01,  99.90,   0.36,  (min)
08/18 07Z,   0.40,  -5.15,  -4.35,  99.90,   0.40,
08/18 08Z,   0.50,  -4.25,  -3.45,  99.90,   0.30,
08/18 09Z,   0.50,  -3.29,  -2.56,  99.90,   0.23,
08/18 10Z,   0.40,  -2.46,  -1.79,  99.90,   0.27,
08/18 11Z,   0.50,  -1.97,  -1.30,  99.90,   0.17,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/18 12Z,   0.50,  -1.95,  99.90,  -1.26,   0.19,  (max)
08/18 13Z,   0.50,  -2.39,  99.90,  -1.68,   0.21,
08/18 14Z,   0.50,  -3.10,  99.90,  -2.37,   0.23,
08/18 15Z,   0.40,  -3.86,  99.90,  -3.21,   0.25,
08/18 16Z,   0.40,  -4.46,  99.90,  -3.79,   0.27,
08/18 17Z,   0.40,  -4.69,  99.90,  -4.00,   0.29,  (min)
08/18 18Z,   0.40,  -4.41,  99.90,  -3.70,   0.32,
08/18 19Z,   0.40,  -3.67,  99.90,  -2.93,   0.34,
08/18 20Z,   0.40,  -2.67,  99.90,  -1.91,   0.36,
08/18 21Z,   0.40,  -1.67,  99.90,  -0.89,   0.38,
08/18 22Z,   0.50,  -0.83,  99.90,   0.07,   0.40,
08/18 23Z,   0.50,  -0.34,  99.90,   0.58,   0.42,  (max)
08/19 00Z,   0.50,  -0.35,  99.90,   0.57,   0.42,
08/19 01Z,   0.50,  -0.92,  99.90,   0.00,   0.42,
08/19 02Z,   0.50,  -1.93,  99.90,  -1.01,   0.42,
08/19 03Z,   0.50,  -3.15,  99.90,  -2.23,   0.42,
08/19 04Z,   0.50,  -4.36,  99.90,  -3.44,   0.42,
08/19 05Z,   0.50,  -5.32,  99.90,  -4.40,   0.42,
08/19 06Z,   0.50,  -5.81,  99.90,  -4.89,   0.42,
08/19 07Z,   0.40,  -5.74,  99.90,  -4.92,   0.42,  (min)
08/19 08Z,   0.50,  -5.21,  99.90,  -4.29,   0.42,
08/19 09Z,   0.60,  -4.45,  99.90,  -3.43,   0.42,
08/19 10Z,   0.50,  -3.64,  99.90,  -2.72,   0.42,
08/19 11Z,   0.60,  -2.92,  99.90,  -1.90,   0.42,
08/19 12Z,   0.60,  -2.47,  99.90,  -1.45,   0.42,
08/19 13Z,   0.60,  -2.40,  99.90,  -1.38,   0.42,  (max)
08/19 14Z,   0.60,  -2.66,  99.90,  -1.64,   0.42,
08/19 15Z,   0.60,  -3.11,  99.90,  -2.09,   0.42,
08/19 16Z,   0.50,  -3.58,  99.90,  -2.66,   0.42,
08/19 17Z,   0.50,  -3.91,  99.90,  -2.99,   0.42,
08/19 18Z,   0.50,  -3.96,  99.90,  -3.04,   0.42,  (min)
08/19 19Z,   0.60,  -3.62,  99.90,  -2.60,   0.42,
08/19 20Z,   0.50,  -2.95,  99.90,  -2.03,   0.42,
08/19 21Z,   0.50,  -2.14,  99.90,  -1.22,   0.42,
08/19 22Z,   0.60,  -1.36,  99.90,  -0.34,   0.42,
08/19 23Z,   0.60,  -0.75,  99.90,   0.27,   0.42,
08/20 00Z,   0.60,  -0.45,  99.90,   0.57,   0.42,  (max)
08/20 01Z,   0.60,  -0.60,  99.90,   0.42,   0.42,
08/20 02Z,   0.60,  -1.23,  99.90,  -0.21,   0.42,
08/20 03Z,   0.60,  -2.20,  99.90,  -1.18,   0.42,
08/20 04Z,   0.50,  -3.33,  99.90,  -2.41,   0.42,
08/20 05Z,   0.50,  -4.43,  99.90,  -3.51,   0.42,
08/20 06Z,   0.50,  -5.31,  99.90,  -4.39,   0.42,
08/20 07Z,   0.50,  -5.78,  99.90,  -4.86,   0.42,  (min)
08/20 08Z,   0.60,  -5.75,  99.90,  -4.73,   0.42,
08/20 09Z,   0.60,  -5.34,  99.90,  -4.32,   0.42,
08/20 10Z,   0.50,  -4.70,  99.90,  -3.78,   0.42,
08/20 11Z,   0.60,  -3.98,  99.90,  -2.96,   0.42,
08/20 12Z,   0.60,  -3.30,  99.90,  -2.28,   0.42,
08/20 13Z,   0.60,  -2.81,  99.90,  -1.79,   0.42,
08/20 14Z,   0.60,  -2.63,  99.90,  -1.61,   0.42,  (max)
08/20 15Z,   0.60,  -2.72,  99.90,  -1.70,   0.42,
08/20 16Z,   0.50,  -2.94,  99.90,  -2.02,   0.42,
08/20 17Z,   0.50,  -3.20,  99.90,  -2.28,   0.42,
08/20 18Z,   0.60,  -3.39,  99.90,  -2.37,   0.42,  (min)
08/20 19Z,   0.60,  -3.38,  99.90,  -2.36,   0.42,
08/20 20Z,   0.50,  -3.09,  99.90,  -2.17,   0.42,
08/20 21Z,   0.50,  -2.54,  99.90,  -1.62,   0.42,
08/20 22Z,   0.60,  -1.90,  99.90,  -0.88,   0.42,
08/20 23Z,   0.60,  -1.29,  99.90,  -0.27,   0.42,
08/21 00Z,   0.50,  -0.81,  99.90,   0.11,   0.42,
08/21 01Z,   0.60,  -0.61,  99.90,   0.41,   0.42,  (max)
08/21 02Z,   0.50,  -0.81,  99.90,   0.11,   0.42,
08/21 03Z,   0.50,  -1.42,  99.90,  -0.51,   0.42,
08/21 04Z,   0.50,  -2.34,  99.90,  -1.42,   0.42,
08/21 05Z,   0.50,  -3.40,  99.90,  -2.48,   0.42,
08/21 06Z,   0.50,  -4.46,  99.90,  -3.54,   0.42,
08/21 07Z,   0.50,  -5.32,  99.90,  -4.41,   0.42,
08/21 08Z,   0.60,  -5.82,  99.90,  -4.80,   0.42,
08/21 09Z,   0.50,  -5.86,  99.90,  -4.94,   0.42,  (min)
08/21 10Z,   0.50,  -5.53,  99.90,  -4.61,   0.42,
08/21 11Z,   0.50,  -4.95,  99.90,  -4.03,   0.42,
08/21 12Z,   0.60,  -4.24,  99.90,  -3.22,   0.42,
08/21 13Z,   0.60,  -3.52,  99.90,  -2.50,   0.42,
08/21 14Z,   0.50,  -2.96,  99.90,  -2.04,   0.42,
08/21 15Z,   0.50,  -2.66,  99.90,  -1.74,   0.42,
08/21 16Z,   0.50,  -2.59,  99.90,  -1.68,   0.42,  (max)
08/21 17Z,   0.40,  -2.68,  99.90,  -1.86,   0.42,
08/21 18Z,   0.50,  -2.85,  99.90,  -1.93,   0.42,
08/21 19Z,   0.50,  -3.02,  99.90,  -2.10,   0.42,
08/21 20Z,   0.40,  -3.06,  99.90,  -2.24,   0.42,  (min)
08/21 21Z,   0.40,  -2.85,  99.90,  -2.03,   0.42,
08/21 22Z,   0.50,  -2.42,  99.90,  -1.50,   0.42,
08/21 23Z,   0.50,  -1.88,  99.90,  -0.96,   0.42,
08/22 00Z,   0.40,  -1.34,  99.90,  -0.52,   0.42,