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 : 04/12/2026 05:21:01 GMT (units in feet MSL)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/10 12Z,   0.60,   1.61,   2.28,  99.90,   0.07,
04/10 13Z,   0.60,   1.18,   1.75,  99.90,  -0.03,
04/10 14Z,   0.60,   0.96,   1.53,  99.90,  -0.03,
04/10 15Z,   0.60,   0.90,   1.51,  99.90,   0.01,  (min)
04/10 16Z,   0.60,   0.98,   1.61,  99.90,   0.03,
04/10 17Z,   0.70,   1.15,   1.64,  99.90,  -0.21,  (max)
04/10 18Z,   0.70,   1.20,   1.52,  99.90,  -0.38,
04/10 19Z,   0.70,   0.86,   1.11,  99.90,  -0.45,
04/10 20Z,   0.70,   0.04,   0.26,  99.90,  -0.48,
04/10 21Z,   0.80,  -1.18,  -0.89,  99.90,  -0.51,
04/10 22Z,   0.80,  -2.62,  -2.18,  99.90,  -0.36,
04/10 23Z,   0.80,  -4.04,  -3.40,  99.90,  -0.16,
04/11 00Z,   0.60,  -5.09,  -4.17,  99.90,   0.32,
04/11 01Z,   0.60,  -5.42,  -4.38,  99.90,   0.44,  (min)
04/11 02Z,   0.70,  -4.92,  -3.86,  99.90,   0.36,
04/11 03Z,   0.70,  -3.75,  -2.80,  99.90,   0.25,
04/11 04Z,   0.70,  -2.17,  -1.23,  99.90,   0.24,
04/11 05Z,   0.70,  -0.41,   0.60,  99.90,   0.31,
04/11 06Z,   0.70,   1.25,   2.29,  99.90,   0.34,
04/11 07Z,   0.70,   2.52,   3.60,  99.90,   0.38,
04/11 08Z,   0.70,   3.26,   4.42,  99.90,   0.46,
04/11 09Z,   0.70,   3.49,   4.66,  99.90,   0.47,  (max)
04/11 10Z,   0.70,   3.32,   4.49,  99.90,   0.47,
04/11 11Z,   0.80,   2.79,   3.96,  99.90,   0.37,
04/11 12Z,   1.00,   2.01,   3.12,  99.90,   0.11,
04/11 13Z,   1.00,   1.21,   2.21,  99.90,  -0.00,
04/11 14Z,   1.00,   0.61,   1.48,  99.90,  -0.13,
04/11 15Z,   1.00,   0.28,   1.11,  99.90,  -0.17,
04/11 16Z,   1.00,   0.22,   1.07,  99.90,  -0.15,  (min)
04/11 17Z,   1.00,   0.43,   1.23,  99.90,  -0.20,
04/11 18Z,   1.10,   0.80,   1.41,  99.90,  -0.49,
04/11 19Z,   1.10,   1.05,   1.48,  99.90,  -0.67,  (max)
04/11 20Z,   1.10,   0.90,   1.31,  99.90,  -0.69,
04/11 21Z,   1.10,   0.24,   0.71,  99.90,  -0.63,
04/11 22Z,   1.10,  -0.87,  -0.33,  99.90,  -0.56,
04/11 23Z,   1.10,  -2.27,  -1.55,  99.90,  -0.38,
04/12 00Z,   0.90,  -3.72,  -2.86,  99.90,  -0.04,
04/12 01Z,   0.90,  -4.82,  -3.87,  99.90,   0.05,
04/12 02Z,   0.90,  -5.22,  -4.27,  99.90,   0.05,  (min)
04/12 03Z,   0.90,  -4.79,  -3.90,  99.90,  -0.01,
04/12 04Z,   0.80,  -3.65,  -2.82,  99.90,   0.03,
04/12 05Z,   0.80,  -2.03,  -1.26,  99.90,  -0.03,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/12 06Z,   0.80,  -0.18,  99.90,   0.58,  -0.03,
04/12 07Z,   0.80,   1.56,  99.90,   2.32,  -0.04,
04/12 08Z,   0.80,   2.87,  99.90,   3.63,  -0.04,
04/12 09Z,   0.80,   3.57,  99.90,   4.33,  -0.04,
04/12 10Z,   0.80,   3.70,  99.90,   4.46,  -0.04,  (max)
04/12 11Z,   0.80,   3.31,  99.90,   4.07,  -0.04,
04/12 12Z,   0.80,   2.48,  99.90,   3.24,  -0.05,
04/12 13Z,   0.80,   1.39,  99.90,   2.14,  -0.05,
04/12 14Z,   0.90,   0.35,  99.90,   1.20,  -0.05,
04/12 15Z,   0.90,  -0.37,  99.90,   0.48,  -0.05,
04/12 16Z,   0.90,  -0.65,  99.90,   0.20,  -0.05,  (min)
04/12 17Z,   0.90,  -0.50,  99.90,   0.35,  -0.06,
04/12 18Z,   0.90,   0.02,  99.90,   0.86,  -0.06,
04/12 19Z,   0.90,   0.71,  99.90,   1.55,  -0.06,
04/12 20Z,   0.90,   1.22,  99.90,   2.06,  -0.06,
04/12 21Z,   0.90,   1.23,  99.90,   2.07,  -0.06,  (max)
04/12 22Z,   0.90,   0.65,  99.90,   1.49,  -0.06,
04/12 23Z,   0.90,  -0.46,  99.90,   0.39,  -0.06,
04/13 00Z,   0.90,  -1.92,  99.90,  -1.07,  -0.06,
04/13 01Z,   0.90,  -3.46,  99.90,  -2.62,  -0.06,
04/13 02Z,   0.90,  -4.65,  99.90,  -3.80,  -0.06,
04/13 03Z,   0.90,  -5.07,  99.90,  -4.23,  -0.06,  (min)
04/13 04Z,   0.90,  -4.60,  99.90,  -3.75,  -0.06,
04/13 05Z,   0.90,  -3.35,  99.90,  -2.50,  -0.06,
04/13 06Z,   0.90,  -1.57,  99.90,  -0.73,  -0.06,
04/13 07Z,   0.90,   0.41,  99.90,   1.26,  -0.06,
04/13 08Z,   0.90,   2.21,  99.90,   3.06,  -0.06,
04/13 09Z,   0.90,   3.45,  99.90,   4.29,  -0.06,
04/13 10Z,   0.90,   3.96,  99.90,   4.80,  -0.06,  (max)
04/13 11Z,   0.90,   3.77,  99.90,   4.61,  -0.06,
04/13 12Z,   0.90,   2.97,  99.90,   3.81,  -0.06,
04/13 13Z,   0.90,   1.69,  99.90,   2.53,  -0.06,
04/13 14Z,   0.90,   0.23,  99.90,   1.07,  -0.06,
04/13 15Z,   0.90,  -0.99,  99.90,  -0.15,  -0.06,
04/13 16Z,   0.80,  -1.66,  99.90,  -0.92,  -0.06,
04/13 17Z,   0.80,  -1.68,  99.90,  -0.93,  -0.06,  (min)
04/13 18Z,   0.80,  -1.11,  99.90,  -0.37,  -0.06,
04/13 19Z,   0.80,  -0.14,  99.90,   0.60,  -0.06,
04/13 20Z,   0.80,   0.93,  99.90,   1.67,  -0.06,
04/13 21Z,   0.70,   1.67,  99.90,   2.31,  -0.06,
04/13 22Z,   0.70,   1.78,  99.90,   2.42,  -0.06,  (max)
04/13 23Z,   0.70,   1.19,  99.90,   1.83,  -0.06,
04/14 00Z,   0.70,  -0.00,  99.90,   0.64,  -0.06,
04/14 01Z,   0.70,  -1.59,  99.90,  -0.95,  -0.06,
04/14 02Z,   0.70,  -3.25,  99.90,  -2.60,  -0.06,
04/14 03Z,   0.70,  -4.46,  99.90,  -3.81,  -0.06,
04/14 04Z,   0.70,  -4.80,  99.90,  -4.16,  -0.06,  (min)
04/14 05Z,   0.70,  -4.15,  99.90,  -3.51,  -0.06,
04/14 06Z,   0.70,  -2.68,  99.90,  -2.04,  -0.06,
04/14 07Z,   0.70,  -0.71,  99.90,  -0.06,  -0.06,
04/14 08Z,   0.70,   1.38,  99.90,   2.02,  -0.06,
04/14 09Z,   0.70,   3.10,  99.90,   3.75,  -0.06,
04/14 10Z,   0.70,   4.08,  99.90,   4.73,  -0.06,  (max)
04/14 11Z,   0.60,   4.18,  99.90,   4.73,  -0.06,
04/14 12Z,   0.60,   3.48,  99.90,   4.02,  -0.06,
04/14 13Z,   0.60,   2.11,  99.90,   2.66,  -0.06,
04/14 14Z,   0.60,   0.33,  99.90,   0.87,  -0.06,
04/14 15Z,   0.60,  -1.44,  99.90,  -0.90,  -0.06,
04/14 16Z,   0.60,  -2.69,  99.90,  -2.14,  -0.06,
04/14 17Z,   0.70,  -3.09,  99.90,  -2.44,  -0.06,  (min)
04/14 18Z,   0.70,  -2.63,  99.90,  -1.98,  -0.06,
04/14 19Z,   0.70,  -1.50,  99.90,  -0.85,  -0.06,
04/14 20Z,   0.70,   0.00,  99.90,   0.64,  -0.06,
04/14 21Z,   0.70,   1.43,  99.90,   2.07,  -0.06,
04/14 22Z,   0.70,   2.34,  99.90,   2.98,  -0.06,
04/14 23Z,   0.70,   2.45,  99.90,   3.10,  -0.06,  (max)
04/15 00Z,   0.80,   1.77,  99.90,   2.52,  -0.06,
04/15 01Z,   0.80,   0.45,  99.90,   1.19,  -0.06,
04/15 02Z,   0.80,  -1.27,  99.90,  -0.53,  -0.06,
04/15 03Z,   0.80,  -2.98,  99.90,  -2.24,  -0.06,
04/15 04Z,   0.90,  -4.12,  99.90,  -3.27,  -0.06,
04/15 05Z,   0.90,  -4.26,  99.90,  -3.41,  -0.06,  (min)
04/15 06Z,   1.00,  -3.34,  99.90,  -2.40,  -0.06,
04/15 07Z,   1.00,  -1.62,  99.90,  -0.68,  -0.06,
04/15 08Z,   1.10,   0.50,  99.90,   1.54,  -0.06,
04/15 09Z,   1.10,   2.55,  99.90,   3.59,  -0.06,
04/15 10Z,   1.10,   4.01,  99.90,   5.05,  -0.06,
04/15 11Z,   1.10,   4.53,  99.90,   5.57,  -0.06,  (max)
04/15 12Z,   1.10,   4.04,  99.90,   5.08,  -0.06,
04/15 13Z,   1.10,   2.69,  99.90,   3.73,  -0.06,
04/15 14Z,   1.00,   0.71,  99.90,   1.65,  -0.06,
04/15 15Z,   1.00,  -1.53,  99.90,  -0.58,  -0.06,
04/15 16Z,   0.90,  -3.45,  99.90,  -2.61,  -0.06,
04/15 17Z,   0.90,  -4.51,  99.90,  -3.67,  -0.06,  (min)
04/15 18Z,   0.90,  -4.43,  99.90,  -3.59,  -0.06,
04/15 19Z,   0.90,  -3.34,  99.90,  -2.49,  -0.06,
04/15 20Z,   0.90,  -1.57,  99.90,  -0.72,  -0.06,
04/15 21Z,   0.90,   0.43,  99.90,   1.28,  -0.06,
04/15 22Z,   0.90,   2.14,  99.90,   2.99,  -0.06,
04/15 23Z,   0.90,   3.12,  99.90,   3.97,  -0.06,
04/16 00Z,   0.90,   3.17,  99.90,   4.01,  -0.06,