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
#Seattle, WA : 02/08/2026 20:21:50 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
02/07 00Z,   0.60,   3.99,   4.43,  99.90,  -0.16,
02/07 01Z,   0.60,   5.51,   5.73,  99.90,  -0.38,
02/07 02Z,   0.60,   7.15,   7.29,  99.90,  -0.46,
02/07 03Z,   0.60,   8.46,   8.63,  99.90,  -0.43,
02/07 04Z,   0.60,   9.07,   9.26,  99.90,  -0.41,  (max)
02/07 05Z,   0.60,   8.89,   9.08,  99.90,  -0.41,
02/07 06Z,   0.70,   8.05,   8.29,  99.90,  -0.46,
02/07 07Z,   0.70,   6.79,   7.17,  99.90,  -0.32,
02/07 08Z,   0.70,   5.42,   5.81,  99.90,  -0.31,
02/07 09Z,   0.70,   4.34,   4.67,  99.90,  -0.37,
02/07 10Z,   0.70,   4.00,   4.27,  99.90,  -0.43,  (min)
02/07 11Z,   0.70,   4.58,   4.85,  99.90,  -0.43,
02/07 12Z,   0.70,   5.92,   6.21,  99.90,  -0.41,
02/07 13Z,   0.70,   7.70,   8.00,  99.90,  -0.40,
02/07 14Z,   0.70,   9.54,   9.96,  99.90,  -0.28,
02/07 15Z,   0.70,  11.04,  11.57,  99.90,  -0.17,
02/07 16Z,   0.70,  11.81,  12.36,  99.90,  -0.15,  (max)
02/07 17Z,   0.70,  11.61,  12.15,  99.90,  -0.16,
02/07 18Z,   0.70,  10.51,  11.18,  99.90,  -0.03,
02/07 19Z,   0.70,   8.72,   9.53,  99.90,   0.11,
02/07 20Z,   0.70,   6.56,   7.28,  99.90,   0.02,
02/07 21Z,   0.70,   4.43,   5.12,  99.90,  -0.01,
02/07 22Z,   0.70,   2.86,   3.56,  99.90,   0.00,
02/07 23Z,   0.70,   2.24,   2.96,  99.90,   0.02,  (min)
02/08 00Z,   0.80,   2.61,   3.33,  99.90,  -0.08,
02/08 01Z,   0.80,   3.72,   4.31,  99.90,  -0.21,
02/08 02Z,   0.80,   5.25,   5.72,  99.90,  -0.33,
02/08 03Z,   0.80,   6.83,   7.22,  99.90,  -0.41,
02/08 04Z,   0.80,   8.08,   8.47,  99.90,  -0.41,
02/08 05Z,   0.80,   8.70,   9.14,  99.90,  -0.36,  (max)
02/08 06Z,   0.90,   8.65,   9.05,  99.90,  -0.50,
02/08 07Z,   0.90,   8.12,   8.54,  99.90,  -0.48,
02/08 08Z,   0.90,   7.29,   7.79,  99.90,  -0.40,
02/08 09Z,   0.80,   6.41,   6.90,  99.90,  -0.31,
02/08 10Z,   0.80,   5.79,   6.17,  99.90,  -0.42,
02/08 11Z,   0.80,   5.75,   6.04,  99.90,  -0.51,  (min)
02/08 12Z,   0.70,   6.36,   6.57,  99.90,  -0.49,
02/08 13Z,   0.70,   7.47,   7.64,  99.90,  -0.53,
02/08 14Z,   0.70,   8.80,   9.01,  99.90,  -0.49,
02/08 15Z,   0.70,  10.10,  10.36,  99.90,  -0.44,
02/08 16Z,   0.60,  11.05,  11.32,  99.90,  -0.33,
02/08 17Z,   0.60,  11.32,  11.61,  99.90,  -0.31,  (max)
02/08 18Z,   0.60,  10.73,  11.07,  99.90,  -0.26,
02/08 19Z,   0.60,   9.39,   9.88,  99.90,  -0.11,
02/08 20Z,   0.60,   7.53,   8.06,  99.90,  -0.07,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
02/08 21Z,   0.60,   5.44,  99.90,   5.96,  -0.08,
02/08 22Z,   0.50,   3.51,  99.90,   3.92,  -0.09,
02/08 23Z,   0.50,   2.22,  99.90,   2.62,  -0.10,
02/09 00Z,   0.50,   1.85,  99.90,   2.24,  -0.11,  (min)
02/09 01Z,   0.50,   2.36,  99.90,   2.74,  -0.12,
02/09 02Z,   0.50,   3.51,  99.90,   3.88,  -0.13,
02/09 03Z,   0.50,   5.01,  99.90,   5.37,  -0.14,
02/09 04Z,   0.50,   6.55,  99.90,   6.89,  -0.15,
02/09 05Z,   0.50,   7.79,  99.90,   8.12,  -0.16,
02/09 06Z,   0.60,   8.49,  99.90,   8.91,  -0.18,
02/09 07Z,   0.50,   8.67,  99.90,   8.98,  -0.19,  (max)
02/09 08Z,   0.50,   8.48,  99.90,   8.79,  -0.20,
02/09 09Z,   0.50,   8.07,  99.90,   8.38,  -0.20,
02/09 10Z,   0.50,   7.59,  99.90,   7.89,  -0.20,
02/09 11Z,   0.50,   7.25,  99.90,   7.56,  -0.20,  (min)
02/09 12Z,   0.50,   7.29,  99.90,   7.60,  -0.20,
02/09 13Z,   0.50,   7.74,  99.90,   8.05,  -0.20,
02/09 14Z,   0.50,   8.47,  99.90,   8.78,  -0.20,
02/09 15Z,   0.50,   9.33,  99.90,   9.63,  -0.20,
02/09 16Z,   0.50,  10.15,  99.90,  10.45,  -0.20,
02/09 17Z,   0.50,  10.67,  99.90,  10.97,  -0.20,  (max)
02/09 18Z,   0.50,  10.59,  99.90,  10.90,  -0.20,
02/09 19Z,   0.50,   9.80,  99.90,  10.10,  -0.20,
02/09 20Z,   0.50,   8.39,  99.90,   8.70,  -0.20,
02/09 21Z,   0.50,   6.59,  99.90,   6.89,  -0.20,
02/09 22Z,   0.50,   4.64,  99.90,   4.94,  -0.20,
02/09 23Z,   0.50,   2.92,  99.90,   3.22,  -0.20,
02/10 00Z,   0.40,   1.83,  99.90,   2.03,  -0.20,
02/10 01Z,   0.40,   1.60,  99.90,   1.80,  -0.20,  (min)
02/10 02Z,   0.40,   2.16,  99.90,   2.37,  -0.20,
02/10 03Z,   0.40,   3.31,  99.90,   3.51,  -0.20,
02/10 04Z,   0.40,   4.79,  99.90,   4.99,  -0.20,
02/10 05Z,   0.40,   6.33,  99.90,   6.54,  -0.20,
02/10 06Z,   0.40,   7.63,  99.90,   7.84,  -0.20,
02/10 07Z,   0.40,   8.49,  99.90,   8.70,  -0.20,
02/10 08Z,   0.40,   8.94,  99.90,   9.14,  -0.20,
02/10 09Z,   0.40,   9.08,  99.90,   9.28,  -0.20,  (max)
02/10 10Z,   0.40,   8.99,  99.90,   9.19,  -0.20,
02/10 11Z,   0.40,   8.73,  99.90,   8.94,  -0.20,
02/10 12Z,   0.40,   8.48,  99.90,   8.68,  -0.20,
02/10 13Z,   0.40,   8.41,  99.90,   8.61,  -0.20,  (min)
02/10 14Z,   0.40,   8.57,  99.90,   8.77,  -0.20,
02/10 15Z,   0.40,   8.90,  99.90,   9.10,  -0.20,
02/10 16Z,   0.40,   9.35,  99.90,   9.55,  -0.20,
02/10 17Z,   0.50,   9.83,  99.90,  10.14,  -0.20,
02/10 18Z,   0.50,  10.10,  99.90,  10.41,  -0.20,  (max)
02/10 19Z,   0.50,   9.88,  99.90,  10.18,  -0.20,
02/10 20Z,   0.50,   9.04,  99.90,   9.34,  -0.20,
02/10 21Z,   0.50,   7.68,  99.90,   7.98,  -0.20,
02/10 22Z,   0.50,   5.97,  99.90,   6.27,  -0.20,
02/10 23Z,   0.50,   4.14,  99.90,   4.44,  -0.20,
02/11 00Z,   0.50,   2.53,  99.90,   2.84,  -0.20,
02/11 01Z,   0.50,   1.54,  99.90,   1.85,  -0.20,
02/11 02Z,   0.50,   1.36,  99.90,   1.67,  -0.20,  (min)
02/11 03Z,   0.50,   1.94,  99.90,   2.24,  -0.20,
02/11 04Z,   0.50,   3.09,  99.90,   3.39,  -0.20,
02/11 05Z,   0.50,   4.61,  99.90,   4.91,  -0.20,
02/11 06Z,   0.60,   6.24,  99.90,   6.65,  -0.20,
02/11 07Z,   0.60,   7.67,  99.90,   8.08,  -0.20,
02/11 08Z,   0.60,   8.73,  99.90,   9.13,  -0.20,
02/11 09Z,   0.60,   9.41,  99.90,   9.82,  -0.20,
02/11 10Z,   0.60,   9.79,  99.90,  10.20,  -0.20,
02/11 11Z,   0.60,   9.86,  99.90,  10.26,  -0.20,  (max)
02/11 12Z,   0.60,   9.63,  99.90,  10.04,  -0.20,
02/11 13Z,   0.60,   9.28,  99.90,   9.68,  -0.20,
02/11 14Z,   0.60,   8.97,  99.90,   9.38,  -0.20,
02/11 15Z,   0.60,   8.82,  99.90,   9.22,  -0.20,  (min)
02/11 16Z,   0.60,   8.84,  99.90,   9.25,  -0.20,
02/11 17Z,   0.60,   9.07,  99.90,   9.47,  -0.20,
02/11 18Z,   0.60,   9.41,  99.90,   9.81,  -0.20,
02/11 19Z,   0.60,   9.61,  99.90,  10.01,  -0.20,  (max)
02/11 20Z,   0.60,   9.37,  99.90,   9.78,  -0.20,
02/11 21Z,   0.60,   8.57,  99.90,   8.98,  -0.20,
02/11 22Z,   0.50,   7.27,  99.90,   7.58,  -0.20,
02/11 23Z,   0.50,   5.61,  99.90,   5.91,  -0.20,
02/12 00Z,   0.50,   3.79,  99.90,   4.10,  -0.20,
02/12 01Z,   0.50,   2.19,  99.90,   2.50,  -0.20,
02/12 02Z,   0.50,   1.21,  99.90,   1.51,  -0.20,
02/12 03Z,   0.50,   1.04,  99.90,   1.34,  -0.20,  (min)
02/12 04Z,   0.50,   1.65,  99.90,   1.95,  -0.20,
02/12 05Z,   0.50,   2.89,  99.90,   3.19,  -0.20,
02/12 06Z,   0.50,   4.55,  99.90,   4.86,  -0.20,
02/12 07Z,   0.50,   6.35,  99.90,   6.65,  -0.20,
02/12 08Z,   0.50,   7.95,  99.90,   8.25,  -0.20,
02/12 09Z,   0.50,   9.18,  99.90,   9.48,  -0.20,
02/12 10Z,   0.50,  10.02,  99.90,  10.32,  -0.20,
02/12 11Z,   0.50,  10.48,  99.90,  10.78,  -0.20,
02/12 12Z,   0.50,  10.51,  99.90,  10.81,  -0.20,