EXTRA-TROPICAL  STORM  SURGE
N A T I O N A L    O C E A N I C    A N D    A T M O S P H E R I C    A D M I N I S T R A T I O N

  • This website is considered EXPERIMENTAL, is supported on an 8x5 basis, and has no guarantee of availability.
  • The data located HERE are considered OPERATIONAL and are supported on a 24x7 basis.
About
Manual
Disclaimer
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 : 10/09/2026 14:23:00 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/07 18Z,   0.60,   2.40,   2.27,  99.90,  -0.73,
10/07 19Z,   0.60,   3.70,   3.63,  99.90,  -0.67,
10/07 20Z,   0.50,   5.07,   5.11,  99.90,  -0.46,
10/07 21Z,   0.60,   6.31,   6.34,  99.90,  -0.57,
10/07 22Z,   0.60,   7.20,   7.24,  99.90,  -0.56,
10/07 23Z,   0.60,   7.54,   7.64,  99.90,  -0.50,  (max)
10/08 00Z,   0.50,   7.27,   7.49,  99.90,  -0.28,
10/08 01Z,   0.50,   6.47,   6.76,  99.90,  -0.21,
10/08 02Z,   0.50,   5.38,   5.76,  99.90,  -0.12,
10/08 03Z,   0.50,   4.33,   4.66,  99.90,  -0.17,
10/08 04Z,   0.50,   3.58,   3.96,  99.90,  -0.12,
10/08 05Z,   0.50,   3.27,   3.66,  99.90,  -0.11,  (min)
10/08 06Z,   0.50,   3.40,   3.82,  99.90,  -0.08,
10/08 07Z,   0.50,   3.85,   4.31,  99.90,  -0.04,
10/08 08Z,   0.40,   4.48,   5.03,  99.90,   0.15,
10/08 09Z,   0.50,   5.10,   5.76,  99.90,   0.16,
10/08 10Z,   0.50,   5.50,   6.12,  99.90,   0.12,  (max)
10/08 11Z,   0.50,   5.52,   6.05,  99.90,   0.03,
10/08 12Z,   0.60,   5.06,   5.62,  99.90,  -0.04,
10/08 13Z,   0.60,   4.19,   4.79,  99.90,   0.00,
10/08 14Z,   0.60,   3.13,   3.65,  99.90,  -0.08,
10/08 15Z,   0.60,   2.21,   2.52,  99.90,  -0.29,
10/08 16Z,   0.60,   1.70,   1.84,  99.90,  -0.46,
10/08 17Z,   0.60,   1.76,   1.78,  99.90,  -0.58,  (min)
10/08 18Z,   0.70,   2.36,   2.29,  99.90,  -0.77,
10/08 19Z,   0.60,   3.37,   3.28,  99.90,  -0.69,
10/08 20Z,   0.60,   4.60,   4.62,  99.90,  -0.58,
10/08 21Z,   0.70,   5.83,   5.84,  99.90,  -0.69,
10/08 22Z,   0.70,   6.84,   6.95,  99.90,  -0.59,
10/08 23Z,   0.70,   7.39,   7.52,  99.90,  -0.57,  (max)
10/09 00Z,   0.60,   7.33,   7.51,  99.90,  -0.42,
10/09 01Z,   0.70,   6.63,   7.04,  99.90,  -0.29,
10/09 02Z,   0.70,   5.45,   6.00,  99.90,  -0.15,
10/09 03Z,   0.70,   4.11,   4.67,  99.90,  -0.14,
10/09 04Z,   0.70,   2.98,   3.56,  99.90,  -0.12,
10/09 05Z,   0.80,   2.32,   2.91,  99.90,  -0.21,
10/09 06Z,   0.70,   2.21,   2.84,  99.90,  -0.07,  (min)
10/09 07Z,   0.70,   2.61,   3.24,  99.90,  -0.07,
10/09 08Z,   0.70,   3.36,   4.08,  99.90,   0.02,
10/09 09Z,   0.70,   4.28,   5.12,  99.90,   0.14,
10/09 10Z,   0.80,   5.16,   5.94,  99.90,  -0.02,
10/09 11Z,   0.70,   5.77,   6.55,  99.90,   0.08,
10/09 12Z,   0.80,   5.94,   6.71,  99.90,  -0.03,  (max)
10/09 13Z,   0.80,   5.57,   6.43,  99.90,   0.06,
10/09 14Z,   0.90,   4.77,   5.78,  99.90,   0.11,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/09 15Z,   0.90,   3.80,  99.90,   4.78,   0.08,
10/09 16Z,   0.90,   3.00,  99.90,   3.96,   0.06,
10/09 17Z,   1.00,   2.63,  99.90,   3.66,   0.03,  (min)
10/09 18Z,   1.10,   2.81,  99.90,   3.91,   0.00,
10/09 19Z,   1.10,   3.46,  99.90,   4.54,  -0.03,
10/09 20Z,   1.10,   4.44,  99.90,   5.49,  -0.05,
10/09 21Z,   1.10,   5.54,  99.90,   6.56,  -0.08,
10/09 22Z,   1.00,   6.54,  99.90,   7.43,  -0.11,
10/09 23Z,   0.90,   7.22,  99.90,   7.98,  -0.13,
10/10 00Z,   0.90,   7.35,  99.90,   8.09,  -0.16,  (max)
10/10 01Z,   0.90,   6.82,  99.90,   7.53,  -0.19,
10/10 02Z,   0.90,   5.68,  99.90,   6.37,  -0.21,
10/10 03Z,   0.80,   4.19,  99.90,   4.78,  -0.21,
10/10 04Z,   0.90,   2.73,  99.90,   3.42,  -0.21,
10/10 05Z,   0.90,   1.67,  99.90,   2.36,  -0.21,
10/10 06Z,   0.80,   1.22,  99.90,   1.81,  -0.21,  (min)
10/10 07Z,   0.80,   1.41,  99.90,   2.00,  -0.21,
10/10 08Z,   0.80,   2.13,  99.90,   2.71,  -0.21,
10/10 09Z,   0.80,   3.18,  99.90,   3.77,  -0.21,
10/10 10Z,   0.70,   4.36,  99.90,   4.85,  -0.21,
10/10 11Z,   0.70,   5.45,  99.90,   5.93,  -0.21,
10/10 12Z,   0.70,   6.20,  99.90,   6.69,  -0.21,
10/10 13Z,   0.70,   6.43,  99.90,   6.92,  -0.21,  (max)
10/10 14Z,   0.70,   6.10,  99.90,   6.59,  -0.21,
10/10 15Z,   0.70,   5.35,  99.90,   5.84,  -0.21,
10/10 16Z,   0.70,   4.48,  99.90,   4.97,  -0.21,
10/10 17Z,   0.70,   3.83,  99.90,   4.32,  -0.21,
10/10 18Z,   0.70,   3.62,  99.90,   4.10,  -0.21,  (min)
10/10 19Z,   0.70,   3.89,  99.90,   4.38,  -0.21,
10/10 20Z,   0.70,   4.56,  99.90,   5.04,  -0.21,
10/10 21Z,   0.70,   5.44,  99.90,   5.93,  -0.21,
10/10 22Z,   0.70,   6.33,  99.90,   6.82,  -0.21,
10/10 23Z,   0.70,   7.03,  99.90,   7.52,  -0.21,
10/11 00Z,   0.70,   7.30,  99.90,   7.79,  -0.21,  (max)
10/11 01Z,   0.70,   6.98,  99.90,   7.47,  -0.21,
10/11 02Z,   0.70,   6.00,  99.90,   6.48,  -0.21,
10/11 03Z,   0.70,   4.50,  99.90,   4.99,  -0.21,
10/11 04Z,   0.70,   2.84,  99.90,   3.33,  -0.21,
10/11 05Z,   0.70,   1.43,  99.90,   1.91,  -0.21,
10/11 06Z,   0.60,   0.58,  99.90,   0.97,  -0.21,
10/11 07Z,   0.60,   0.46,  99.90,   0.84,  -0.21,  (min)
10/11 08Z,   0.60,   1.00,  99.90,   1.39,  -0.21,
10/11 09Z,   0.60,   2.03,  99.90,   2.42,  -0.21,
10/11 10Z,   0.70,   3.35,  99.90,   3.84,  -0.21,
10/11 11Z,   0.70,   4.73,  99.90,   5.21,  -0.21,
10/11 12Z,   0.60,   5.93,  99.90,   6.31,  -0.21,
10/11 13Z,   0.60,   6.72,  99.90,   7.11,  -0.21,
10/11 14Z,   0.60,   6.95,  99.90,   7.33,  -0.21,  (max)
10/11 15Z,   0.60,   6.61,  99.90,   7.00,  -0.21,
10/11 16Z,   0.60,   5.91,  99.90,   6.29,  -0.21,
10/11 17Z,   0.60,   5.15,  99.90,   5.54,  -0.21,
10/11 18Z,   0.60,   4.65,  99.90,   5.04,  -0.21,
10/11 19Z,   0.60,   4.56,  99.90,   4.95,  -0.21,  (min)
10/11 20Z,   0.60,   4.89,  99.90,   5.28,  -0.21,
10/11 21Z,   0.60,   5.50,  99.90,   5.89,  -0.21,
10/11 22Z,   0.60,   6.22,  99.90,   6.61,  -0.21,
10/11 23Z,   0.60,   6.85,  99.90,   7.24,  -0.21,
10/12 00Z,   0.70,   7.19,  99.90,   7.68,  -0.21,  (max)
10/12 01Z,   0.70,   7.05,  99.90,   7.54,  -0.21,
10/12 02Z,   0.70,   6.30,  99.90,   6.78,  -0.21,
10/12 03Z,   0.70,   4.95,  99.90,   5.44,  -0.21,
10/12 04Z,   0.70,   3.26,  99.90,   3.74,  -0.21,
10/12 05Z,   0.70,   1.60,  99.90,   2.08,  -0.21,
10/12 06Z,   0.70,   0.38,  99.90,   0.87,  -0.21,
10/12 07Z,   0.70,  -0.13,  99.90,   0.35,  -0.21,  (min)
10/12 08Z,   0.70,   0.11,  99.90,   0.60,  -0.21,
10/12 09Z,   0.70,   0.99,  99.90,   1.48,  -0.21,
10/12 10Z,   0.70,   2.29,  99.90,   2.78,  -0.21,
10/12 11Z,   0.70,   3.80,  99.90,   4.28,  -0.21,
10/12 12Z,   0.70,   5.27,  99.90,   5.76,  -0.21,
10/12 13Z,   0.70,   6.49,  99.90,   6.98,  -0.21,
10/12 14Z,   0.70,   7.24,  99.90,   7.72,  -0.21,
10/12 15Z,   0.60,   7.40,  99.90,   7.79,  -0.21,  (max)
10/12 16Z,   0.60,   7.05,  99.90,   7.43,  -0.21,
10/12 17Z,   0.60,   6.40,  99.90,   6.78,  -0.21,
10/12 18Z,   0.60,   5.76,  99.90,   6.15,  -0.21,
10/12 19Z,   0.60,   5.39,  99.90,   5.78,  -0.21,
10/12 20Z,   0.60,   5.39,  99.90,   5.78,  -0.21,  (min)
10/12 21Z,   0.60,   5.71,  99.90,   6.09,  -0.21,
10/12 22Z,   0.60,   6.20,  99.90,   6.58,  -0.21,
10/12 23Z,   0.50,   6.70,  99.90,   6.98,  -0.21,
10/13 00Z,   0.50,   7.03,  99.90,   7.32,  -0.21,
10/13 01Z,   0.60,   7.02,  99.90,   7.41,  -0.21,  (max)
10/13 02Z,   0.60,   6.51,  99.90,   6.89,  -0.21,
10/13 03Z,   0.60,   5.42,  99.90,   5.80,  -0.21,
10/13 04Z,   0.60,   3.86,  99.90,   4.24,  -0.21,
10/13 05Z,   0.50,   2.12,  99.90,   2.41,  -0.21,
10/13 06Z,   0.50,   0.63,  99.90,   0.91,  -0.21,