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
#Seattle, WA : 08/15/2026 03:22:45 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/13 12Z,   0.50,  -2.65,  -1.87,  99.90,   0.28,
08/13 13Z,   0.50,  -3.09,  -2.27,  99.90,   0.32,  (max)
08/13 14Z,   0.50,  -4.59,  -3.73,  99.90,   0.36,
08/13 15Z,   0.50,  -6.98,  -6.08,  99.90,   0.40,
08/13 16Z,   0.50,  -9.91,  -9.15,  99.90,   0.26,
08/13 17Z,   0.50, -12.79, -12.19,  99.90,   0.10,
08/13 18Z,   0.60, -14.83, -14.38,  99.90,  -0.15,
08/13 19Z,   0.60, -15.43, -15.10,  99.90,  -0.27,  (min)
08/13 20Z,   0.70, -14.45, -14.05,  99.90,  -0.30,
08/13 21Z,   0.70, -12.21, -11.76,  99.90,  -0.25,
08/13 22Z,   0.70,  -9.23,  -8.72,  99.90,  -0.19,
08/13 23Z,   0.70,  -6.17,  -5.61,  99.90,  -0.14,
08/14 00Z,   0.80,  -3.63,  -3.12,  99.90,  -0.29,
08/14 01Z,   0.80,  -2.04,  -1.59,  99.90,  -0.35,
08/14 02Z,   0.80,  -1.52,  -1.23,  99.90,  -0.51,  (max)
08/14 03Z,   0.80,  -2.03,  -1.86,  99.90,  -0.63,
08/14 04Z,   0.80,  -3.42,  -3.07,  99.90,  -0.45,
08/14 05Z,   0.80,  -5.38,  -4.85,  99.90,  -0.27,
08/14 06Z,   0.70,  -7.35,  -6.88,  99.90,  -0.23,
08/14 07Z,   0.70,  -8.67,  -8.20,  99.90,  -0.23,
08/14 08Z,   0.70,  -8.93,  -8.41,  99.90,  -0.18,  (min)
08/14 09Z,   0.70,  -8.17,  -7.50,  99.90,  -0.03,
08/14 10Z,   0.70,  -6.68,  -5.99,  99.90,  -0.01,
08/14 11Z,   0.70,  -4.93,  -4.24,  99.90,  -0.01,
08/14 12Z,   0.60,  -3.51,  -2.69,  99.90,   0.22,
08/14 13Z,   0.60,  -2.92,  -1.97,  99.90,   0.35,  (max)
08/14 14Z,   0.60,  -3.41,  -2.53,  99.90,   0.28,
08/14 15Z,   0.60,  -4.94,  -4.09,  99.90,   0.25,
08/14 16Z,   0.60,  -7.27,  -6.42,  99.90,   0.25,
08/14 17Z,   0.60, -10.03,  -9.33,  99.90,   0.10,
08/14 18Z,   0.70, -12.58, -12.01,  99.90,  -0.13,
08/14 19Z,   0.70, -14.18, -13.67,  99.90,  -0.19,
08/14 20Z,   0.70, -14.31, -13.90,  99.90,  -0.29,  (min)
08/14 21Z,   0.70, -12.98, -12.45,  99.90,  -0.17,
08/14 22Z,   0.70, -10.57, -10.03,  99.90,  -0.16,
08/14 23Z,   0.70,  -7.64,  -7.00,  99.90,  -0.06,
08/15 00Z,   0.70,  -4.82,  -4.15,  99.90,  -0.03,
08/15 01Z,   0.70,  -2.69,  -2.13,  99.90,  -0.14,
08/15 02Z,   0.70,  -1.61,  -1.18,  99.90,  -0.27,  (max)
08/15 03Z,   0.70,  -1.65,  -1.34,  99.90,  -0.39,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/15 04Z,   0.70,  -2.69,  99.90,  -2.36,  -0.37,
08/15 05Z,   0.70,  -4.53,  99.90,  -4.18,  -0.35,
08/15 06Z,   0.70,  -6.76,  99.90,  -6.38,  -0.33,
08/15 07Z,   0.70,  -8.74,  99.90,  -8.35,  -0.31,
08/15 08Z,   0.70,  -9.86,  99.90,  -9.44,  -0.28,  (min)
08/15 09Z,   0.70,  -9.82,  99.90,  -9.38,  -0.26,
08/15 10Z,   0.70,  -8.77,  99.90,  -8.31,  -0.24,
08/15 11Z,   0.70,  -7.08,  99.90,  -6.60,  -0.22,
08/15 12Z,   0.70,  -5.25,  99.90,  -4.75,  -0.20,
08/15 13Z,   0.60,  -3.85,  99.90,  -3.42,  -0.18,
08/15 14Z,   0.60,  -3.32,  99.90,  -2.88,  -0.15,  (max)
08/15 15Z,   0.60,  -3.85,  99.90,  -3.38,  -0.13,
08/15 16Z,   0.60,  -5.31,  99.90,  -4.84,  -0.13,
08/15 17Z,   0.60,  -7.45,  99.90,  -6.99,  -0.13,
08/15 18Z,   0.60,  -9.88,  99.90,  -9.41,  -0.13,
08/15 19Z,   0.60, -11.96,  99.90, -11.49,  -0.13,
08/15 20Z,   0.60, -13.03,  99.90, -12.56,  -0.13,  (min)
08/15 21Z,   0.60, -12.73,  99.90, -12.26,  -0.13,
08/15 22Z,   0.50, -11.16,  99.90, -10.79,  -0.13,
08/15 23Z,   0.50,  -8.75,  99.90,  -8.39,  -0.13,
08/16 00Z,   0.60,  -6.06,  99.90,  -5.59,  -0.13,
08/16 01Z,   0.60,  -3.65,  99.90,  -3.18,  -0.13,
08/16 02Z,   0.60,  -2.06,  99.90,  -1.59,  -0.13,
08/16 03Z,   0.60,  -1.57,  99.90,  -1.10,  -0.13,  (max)
08/16 04Z,   0.60,  -2.17,  99.90,  -1.70,  -0.13,
08/16 05Z,   0.60,  -3.69,  99.90,  -3.22,  -0.13,
08/16 06Z,   0.60,  -5.86,  99.90,  -5.39,  -0.13,
08/16 07Z,   0.60,  -8.19,  99.90,  -7.72,  -0.13,
08/16 08Z,   0.60, -10.04,  99.90,  -9.57,  -0.13,
08/16 09Z,   0.60, -10.87,  99.90, -10.40,  -0.13,  (min)
08/16 10Z,   0.60, -10.53,  99.90, -10.06,  -0.13,
08/16 11Z,   0.60,  -9.24,  99.90,  -8.77,  -0.13,
08/16 12Z,   0.50,  -7.43,  99.90,  -7.07,  -0.13,
08/16 13Z,   0.50,  -5.60,  99.90,  -5.23,  -0.13,
08/16 14Z,   0.50,  -4.26,  99.90,  -3.89,  -0.13,
08/16 15Z,   0.50,  -3.79,  99.90,  -3.43,  -0.13,  (max)
08/16 16Z,   0.50,  -4.28,  99.90,  -3.92,  -0.13,
08/16 17Z,   0.50,  -5.58,  99.90,  -5.21,  -0.13,
08/16 18Z,   0.50,  -7.40,  99.90,  -7.04,  -0.13,
08/16 19Z,   0.50,  -9.37,  99.90,  -9.00,  -0.13,
08/16 20Z,   0.50, -10.91,  99.90, -10.54,  -0.13,
08/16 21Z,   0.50, -11.48,  99.90, -11.11,  -0.13,  (min)
08/16 22Z,   0.50, -10.85,  99.90, -10.48,  -0.13,
08/16 23Z,   0.50,  -9.23,  99.90,  -8.86,  -0.13,
08/17 00Z,   0.50,  -7.03,  99.90,  -6.66,  -0.13,
08/17 01Z,   0.50,  -4.74,  99.90,  -4.37,  -0.13,
08/17 02Z,   0.50,  -2.87,  99.90,  -2.51,  -0.13,
08/17 03Z,   0.50,  -1.88,  99.90,  -1.51,  -0.13,  (max)
08/17 04Z,   0.50,  -1.96,  99.90,  -1.60,  -0.13,
08/17 05Z,   0.50,  -3.05,  99.90,  -2.68,  -0.13,
08/17 06Z,   0.50,  -4.92,  99.90,  -4.55,  -0.13,
08/17 07Z,   0.50,  -7.25,  99.90,  -6.88,  -0.13,
08/17 08Z,   0.50,  -9.52,  99.90,  -9.15,  -0.13,
08/17 09Z,   0.50, -11.11,  99.90, -10.75,  -0.13,
08/17 10Z,   0.50, -11.62,  99.90, -11.25,  -0.13,  (min)
08/17 11Z,   0.50, -11.00,  99.90, -10.63,  -0.13,
08/17 12Z,   0.50,  -9.57,  99.90,  -9.20,  -0.13,
08/17 13Z,   0.50,  -7.73,  99.90,  -7.36,  -0.13,
08/17 14Z,   0.50,  -5.94,  99.90,  -5.57,  -0.13,
08/17 15Z,   0.50,  -4.68,  99.90,  -4.31,  -0.13,
08/17 16Z,   0.50,  -4.23,  99.90,  -3.87,  -0.13,  (max)
08/17 17Z,   0.50,  -4.62,  99.90,  -4.25,  -0.13,
08/17 18Z,   0.50,  -5.64,  99.90,  -5.27,  -0.13,
08/17 19Z,   0.50,  -7.06,  99.90,  -6.69,  -0.13,
08/17 20Z,   0.50,  -8.52,  99.90,  -8.15,  -0.13,
08/17 21Z,   0.50,  -9.55,  99.90,  -9.18,  -0.13,
08/17 22Z,   0.50,  -9.72,  99.90,  -9.35,  -0.13,  (min)
08/17 23Z,   0.50,  -8.96,  99.90,  -8.59,  -0.13,
08/18 00Z,   0.50,  -7.48,  99.90,  -7.11,  -0.13,
08/18 01Z,   0.60,  -5.66,  99.90,  -5.19,  -0.13,
08/18 02Z,   0.60,  -3.89,  99.90,  -3.42,  -0.13,
08/18 03Z,   0.60,  -2.60,  99.90,  -2.13,  -0.13,
08/18 04Z,   0.60,  -2.17,  99.90,  -1.71,  -0.13,  (max)
08/18 05Z,   0.60,  -2.73,  99.90,  -2.26,  -0.13,
08/18 06Z,   0.60,  -4.16,  99.90,  -3.69,  -0.13,
08/18 07Z,   0.60,  -6.19,  99.90,  -5.73,  -0.13,
08/18 08Z,   0.60,  -8.50,  99.90,  -8.03,  -0.13,
08/18 09Z,   0.60, -10.57,  99.90, -10.11,  -0.13,
08/18 10Z,   0.60, -11.86,  99.90, -11.39,  -0.13,
08/18 11Z,   0.60, -12.06,  99.90, -11.59,  -0.13,  (min)
08/18 12Z,   0.60, -11.26,  99.90, -10.79,  -0.13,
08/18 13Z,   0.60,  -9.76,  99.90,  -9.29,  -0.13,
08/18 14Z,   0.60,  -7.96,  99.90,  -7.49,  -0.13,
08/18 15Z,   0.60,  -6.26,  99.90,  -5.79,  -0.13,
08/18 16Z,   0.60,  -5.06,  99.90,  -4.59,  -0.13,
08/18 17Z,   0.60,  -4.58,  99.90,  -4.11,  -0.13,  (max)
08/18 18Z,   0.60,  -4.77,  99.90,  -4.30,  -0.13,
08/18 19Z,  99.90,  -5.46,  99.90,  99.90,  -0.13,
08/18 20Z,  99.90,  -6.43,  99.90,  99.90,  -0.13,
08/18 21Z,  99.90,  -7.42,  99.90,  99.90,  -0.13,
08/18 22Z,  99.90,  -8.04,  99.90,  99.90,  -0.13,
08/18 23Z,  99.90,  -8.01,  99.90,  99.90,  -0.13,
08/19 00Z,  99.90,  -7.31,  99.90,  99.90,  -0.13,