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 : 05/12/2026 02:21:13 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/10 06Z,   0.20,   9.74,  10.20,  99.90,   0.26,
05/10 07Z,   0.20,  10.55,  11.07,  99.90,   0.32,
05/10 08Z,   0.30,  10.66,  11.28,  99.90,   0.32,  (max)
05/10 09Z,   0.30,  10.20,  10.92,  99.90,   0.42,
05/10 10Z,   0.30,   9.33,  10.18,  99.90,   0.55,
05/10 11Z,   0.30,   8.20,   8.96,  99.90,   0.46,
05/10 12Z,   0.40,   7.09,   7.74,  99.90,   0.25,
05/10 13Z,   0.40,   6.27,   6.66,  99.90,  -0.01,
05/10 14Z,   0.40,   5.89,   6.14,  99.90,  -0.15,
05/10 15Z,   0.40,   5.90,   6.07,  99.90,  -0.23,  (min)
05/10 16Z,   0.40,   6.19,   6.32,  99.90,  -0.27,
05/10 17Z,   0.40,   6.65,   6.69,  99.90,  -0.36,
05/10 18Z,   0.40,   7.07,   7.00,  99.90,  -0.47,
05/10 19Z,   0.40,   7.16,   7.09,  99.90,  -0.47,  (max)
05/10 20Z,   0.40,   6.73,   6.77,  99.90,  -0.36,
05/10 21Z,   0.40,   5.82,   5.92,  99.90,  -0.30,
05/10 22Z,   0.40,   4.60,   4.86,  99.90,  -0.14,
05/10 23Z,   0.40,   3.31,   3.63,  99.90,  -0.08,
05/11 00Z,   0.30,   2.25,   2.65,  99.90,   0.10,
05/11 01Z,   0.30,   1.81,   2.27,  99.90,   0.16,  (min)
05/11 02Z,   0.30,   2.23,   2.64,  99.90,   0.11,
05/11 03Z,   0.30,   3.41,   3.69,  99.90,  -0.02,
05/11 04Z,   0.30,   5.10,   5.28,  99.90,  -0.12,
05/11 05Z,   0.30,   7.01,   7.21,  99.90,  -0.10,
05/11 06Z,   0.20,   8.81,   9.04,  99.90,   0.03,
05/11 07Z,   0.20,  10.16,  10.41,  99.90,   0.05,
05/11 08Z,   0.20,  10.78,  11.04,  99.90,   0.06,  (max)
05/11 09Z,   0.20,  10.65,  11.02,  99.90,   0.17,
05/11 10Z,   0.20,   9.91,  10.35,  99.90,   0.24,
05/11 11Z,   0.20,   8.70,   9.22,  99.90,   0.32,
05/11 12Z,   0.20,   7.25,   7.70,  99.90,   0.25,
05/11 13Z,   0.20,   5.89,   6.18,  99.90,   0.09,
05/11 14Z,   0.20,   4.96,   5.13,  99.90,  -0.03,
05/11 15Z,   0.20,   4.63,   4.67,  99.90,  -0.16,  (min)
05/11 16Z,   0.20,   4.83,   4.83,  99.90,  -0.20,
05/11 17Z,   0.20,   5.44,   5.34,  99.90,  -0.30,
05/11 18Z,   0.20,   6.28,   6.09,  99.90,  -0.39,
05/11 19Z,   0.20,   7.04,   6.87,  99.90,  -0.37,
05/11 20Z,   0.20,   7.40,   7.29,  99.90,  -0.31,  (max)
05/11 21Z,   0.20,   7.18,   7.20,  99.90,  -0.18,
05/11 22Z,   0.20,   6.44,   6.55,  99.90,  -0.09,
05/11 23Z,   0.20,   5.35,   5.61,  99.90,   0.06,
05/12 00Z,   0.20,   4.13,   4.47,  99.90,   0.14,
05/12 01Z,   0.20,   3.10,   3.51,  99.90,   0.21,
05/12 02Z,   0.20,   2.68,   3.06,  99.90,   0.18,  (min)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/12 03Z,   0.20,   3.08,  99.90,   3.45,   0.17,
05/12 04Z,   0.20,   4.26,  99.90,   4.61,   0.15,
05/12 05Z,   0.20,   5.93,  99.90,   6.26,   0.13,
05/12 06Z,   0.20,   7.80,  99.90,   8.12,   0.11,
05/12 07Z,   0.20,   9.51,  99.90,   9.81,   0.10,
05/12 08Z,   0.20,  10.66,  99.90,  10.94,   0.08,
05/12 09Z,   0.20,  10.99,  99.90,  11.25,   0.06,  (max)
05/12 10Z,   0.20,  10.48,  99.90,  10.72,   0.04,
05/12 11Z,   0.20,   9.30,  99.90,   9.52,   0.03,
05/12 12Z,   0.20,   7.64,  99.90,   7.85,   0.01,
05/12 13Z,   0.20,   5.81,  99.90,   6.00,  -0.01,
05/12 14Z,   0.30,   4.22,  99.90,   4.50,  -0.03,
05/12 15Z,   0.30,   3.30,  99.90,   3.57,  -0.03,
05/12 16Z,   0.30,   3.18,  99.90,   3.45,  -0.03,  (min)
05/12 17Z,   0.30,   3.78,  99.90,   4.05,  -0.03,
05/12 18Z,   0.30,   4.89,  99.90,   5.16,  -0.03,
05/12 19Z,   0.30,   6.21,  99.90,   6.48,  -0.03,
05/12 20Z,   0.40,   7.36,  99.90,   7.74,  -0.03,
05/12 21Z,   0.40,   7.99,  99.90,   8.36,  -0.03,  (max)
05/12 22Z,   0.40,   7.95,  99.90,   8.32,  -0.03,
05/12 23Z,   0.40,   7.32,  99.90,   7.70,  -0.03,
05/13 00Z,   0.40,   6.28,  99.90,   6.65,  -0.03,
05/13 01Z,   0.40,   5.05,  99.90,   5.43,  -0.03,
05/13 02Z,   0.50,   4.02,  99.90,   4.49,  -0.03,
05/13 03Z,   0.50,   3.60,  99.90,   4.07,  -0.03,  (min)
05/13 04Z,   0.50,   4.03,  99.90,   4.51,  -0.03,
05/13 05Z,   0.50,   5.23,  99.90,   5.71,  -0.03,
05/13 06Z,   0.50,   6.92,  99.90,   7.40,  -0.03,
05/13 07Z,   0.50,   8.75,  99.90,   9.22,  -0.03,
05/13 08Z,   0.50,  10.29,  99.90,  10.77,  -0.03,
05/13 09Z,   0.60,  11.13,  99.90,  11.70,  -0.03,  (max)
05/13 10Z,   0.60,  11.01,  99.90,  11.59,  -0.03,
05/13 11Z,   0.60,   9.99,  99.90,  10.57,  -0.03,
05/13 12Z,   0.60,   8.27,  99.90,   8.85,  -0.03,
05/13 13Z,   0.60,   6.12,  99.90,   6.69,  -0.03,
05/13 14Z,   0.60,   3.92,  99.90,   4.50,  -0.03,
05/13 15Z,   0.60,   2.23,  99.90,   2.80,  -0.03,
05/13 16Z,   0.60,   1.47,  99.90,   2.05,  -0.03,  (min)
05/13 17Z,   0.60,   1.78,  99.90,   2.35,  -0.03,
05/13 18Z,   0.60,   2.95,  99.90,   3.52,  -0.03,
05/13 19Z,   0.60,   4.66,  99.90,   5.23,  -0.03,
05/13 20Z,   0.60,   6.51,  99.90,   7.08,  -0.03,
05/13 21Z,   0.60,   8.03,  99.90,   8.60,  -0.03,
05/13 22Z,   0.60,   8.86,  99.90,   9.44,  -0.03,
05/13 23Z,   0.60,   8.93,  99.90,   9.50,  -0.03,  (max)
05/14 00Z,   0.60,   8.33,  99.90,   8.91,  -0.03,
05/14 01Z,   0.60,   7.27,  99.90,   7.84,  -0.03,
05/14 02Z,   0.60,   6.00,  99.90,   6.57,  -0.03,
05/14 03Z,   0.60,   4.94,  99.90,   5.52,  -0.03,
05/14 04Z,   0.60,   4.56,  99.90,   5.13,  -0.03,  (min)
05/14 05Z,   0.60,   5.06,  99.90,   5.63,  -0.03,
05/14 06Z,   0.60,   6.32,  99.90,   6.89,  -0.03,
05/14 07Z,   0.60,   8.01,  99.90,   8.58,  -0.03,
05/14 08Z,   0.60,   9.73,  99.90,  10.30,  -0.03,
05/14 09Z,   0.50,  11.00,  99.90,  11.47,  -0.03,
05/14 10Z,   0.50,  11.40,  99.90,  11.87,  -0.03,  (max)
05/14 11Z,   0.50,  10.74,  99.90,  11.22,  -0.03,
05/14 12Z,   0.40,   9.14,  99.90,   9.51,  -0.03,
05/14 13Z,   0.40,   6.85,  99.90,   7.23,  -0.03,
05/14 14Z,   0.40,   4.23,  99.90,   4.61,  -0.03,
05/14 15Z,   0.40,   1.80,  99.90,   2.17,  -0.03,
05/14 16Z,   0.40,   0.16,  99.90,   0.54,  -0.03,
05/14 17Z,   0.40,  -0.23,  99.90,   0.14,  -0.03,  (min)
05/14 18Z,   0.40,   0.65,  99.90,   1.02,  -0.03,
05/14 19Z,   0.30,   2.48,  99.90,   2.75,  -0.03,
05/14 20Z,   0.30,   4.81,  99.90,   5.09,  -0.03,
05/14 21Z,   0.30,   7.13,  99.90,   7.40,  -0.03,
05/14 22Z,   0.30,   8.92,  99.90,   9.20,  -0.03,
05/14 23Z,   0.30,   9.87,  99.90,  10.15,  -0.03,
05/15 00Z,   0.30,   9.95,  99.90,  10.23,  -0.03,  (max)
05/15 01Z,   0.40,   9.33,  99.90,   9.70,  -0.03,
05/15 02Z,   0.40,   8.20,  99.90,   8.57,  -0.03,
05/15 03Z,   0.40,   6.87,  99.90,   7.25,  -0.03,
05/15 04Z,   0.40,   5.82,  99.90,   6.19,  -0.03,
05/15 05Z,   0.40,   5.50,  99.90,   5.88,  -0.03,  (min)
05/15 06Z,   0.40,   6.10,  99.90,   6.47,  -0.03,
05/15 07Z,   0.40,   7.41,  99.90,   7.78,  -0.03,
05/15 08Z,   0.40,   9.06,  99.90,   9.43,  -0.03,
05/15 09Z,   0.40,  10.58,  99.90,  10.96,  -0.03,
05/15 10Z,   0.40,  11.49,  99.90,  11.87,  -0.03,  (max)
05/15 11Z,   0.40,  11.39,  99.90,  11.76,  -0.03,
05/15 12Z,   0.40,  10.16,  99.90,  10.53,  -0.03,
05/15 13Z,   0.40,   7.98,  99.90,   8.36,  -0.03,
05/15 14Z,   0.40,   5.20,  99.90,   5.57,  -0.03,
05/15 15Z,   0.40,   2.24,  99.90,   2.61,  -0.03,
05/15 16Z,   0.40,  -0.28,  99.90,   0.10,  -0.03,
05/15 17Z,   0.40,  -1.67,  99.90,  -1.30,  -0.03,  (min)
05/15 18Z,   0.40,  -1.57,  99.90,  -1.19,  -0.03,