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
#Seldovia, AK : 05/11/2026 05:20:39 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/09 12Z,   0.80,   8.91,   9.19,  99.90,  -0.52,
05/09 13Z,   0.70,  10.35,  10.67,  99.90,  -0.38,
05/09 14Z,   0.60,  11.72,  12.05,  99.90,  -0.27,
05/09 15Z,   0.40,  12.76,  13.00,  99.90,  -0.16,
05/09 16Z,   0.30,  13.10,  13.33,  99.90,  -0.07,  (max)
05/09 17Z,   0.30,  12.49,  12.71,  99.90,  -0.08,
05/09 18Z,   0.70,  11.00,  11.24,  99.90,  -0.46,
05/09 19Z,   0.70,   8.95,   9.37,  99.90,  -0.28,
05/09 20Z,   0.70,   6.80,   7.22,  99.90,  -0.28,
05/09 21Z,   0.60,   4.95,   5.29,  99.90,  -0.26,
05/09 22Z,   0.60,   3.72,   4.09,  99.90,  -0.23,
05/09 23Z,   0.50,   3.45,   3.88,  99.90,  -0.07,  (min)
05/10 00Z,   0.90,   4.23,   4.63,  99.90,  -0.50,
05/10 01Z,   0.80,   5.73,   6.12,  99.90,  -0.41,
05/10 02Z,   0.70,   7.61,   8.07,  99.90,  -0.24,
05/10 03Z,   0.60,   9.67,  10.19,  99.90,  -0.08,
05/10 04Z,   0.60,  11.55,  11.93,  99.90,  -0.22,
05/10 05Z,   0.50,  12.77,  13.07,  99.90,  -0.20,
05/10 06Z,   0.80,  13.06,  13.37,  99.90,  -0.49,  (max)
05/10 07Z,   0.80,  12.42,  12.86,  99.90,  -0.36,
05/10 08Z,   0.70,  11.12,  11.64,  99.90,  -0.18,
05/10 09Z,   0.70,   9.53,  10.11,  99.90,  -0.12,
05/10 10Z,   0.60,   8.05,   8.64,  99.90,  -0.01,
05/10 11Z,   0.50,   7.13,   7.70,  99.90,   0.07,  (min)
05/10 12Z,   0.80,   7.14,   7.74,  99.90,  -0.20,
05/10 13Z,   0.70,   7.97,   8.52,  99.90,  -0.15,
05/10 14Z,   0.50,   9.23,   9.79,  99.90,   0.06,
05/10 15Z,   0.40,  10.64,  11.12,  99.90,   0.08,
05/10 16Z,   0.30,  11.92,  12.27,  99.90,   0.05,
05/10 17Z,   0.20,  12.60,  12.83,  99.90,   0.03,  (max)
05/10 18Z,   0.60,  12.37,  12.56,  99.90,  -0.41,
05/10 19Z,   0.60,  11.23,  11.43,  99.90,  -0.40,
05/10 20Z,   0.50,   9.42,   9.73,  99.90,  -0.19,
05/10 21Z,   0.40,   7.37,   7.71,  99.90,  -0.06,
05/10 22Z,   0.30,   5.44,   5.81,  99.90,   0.07,
05/10 23Z,   0.30,   4.03,   4.50,  99.90,   0.17,
05/11 00Z,   0.20,   3.59,   4.04,  99.90,   0.25,  (min)
05/11 01Z,   0.20,   4.25,   4.53,  99.90,   0.08,
05/11 02Z,   0.20,   5.74,   5.92,  99.90,  -0.02,
05/11 03Z,   0.30,   7.78,   7.99,  99.90,  -0.09,
05/11 04Z,   0.30,  10.10,  10.26,  99.90,  -0.14,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/11 05Z,   0.40,  12.23,  99.90,  12.49,  -0.14,
05/11 06Z,   0.40,  13.60,  99.90,  13.86,  -0.14,
05/11 07Z,   0.30,  13.88,  99.90,  14.04,  -0.14,  (max)
05/11 08Z,   0.20,  13.07,  99.90,  13.13,  -0.14,
05/11 09Z,   0.10,  11.43,  99.90,  11.40,  -0.14,
05/11 10Z,   0.00,   9.39,  99.90,   9.25,  -0.14,
05/11 11Z,   0.00,   7.38,  99.90,   7.24,  -0.14,
05/11 12Z,  -0.20,   6.01,  99.90,   5.67,  -0.14,
05/11 13Z,  -0.30,   5.72,  99.90,   5.28,  -0.14,  (min)
05/11 14Z,  -0.30,   6.46,  99.90,   6.02,  -0.14,
05/11 15Z,  -0.20,   7.89,  99.90,   7.55,  -0.14,
05/11 16Z,  -0.20,   9.74,  99.90,   9.39,  -0.14,
05/11 17Z,  -0.20,  11.56,  99.90,  11.22,  -0.14,
05/11 18Z,  -0.20,  12.76,  99.90,  12.42,  -0.14,
05/11 19Z,  -0.10,  12.92,  99.90,  12.68,  -0.14,  (max)
05/11 20Z,  -0.20,  11.98,  99.90,  11.64,  -0.14,
05/11 21Z,  -0.20,  10.17,  99.90,   9.82,  -0.14,
05/11 22Z,  -0.30,   7.91,  99.90,   7.47,  -0.14,
05/11 23Z,  -0.40,   5.65,  99.90,   5.11,  -0.14,
05/12 00Z,  -0.40,   3.94,  99.90,   3.40,  -0.14,
05/12 01Z,  -0.40,   3.35,  99.90,   2.81,  -0.14,  (min)
05/12 02Z,  -0.40,   4.08,  99.90,   3.54,  -0.14,
05/12 03Z,  -0.40,   5.85,  99.90,   5.31,  -0.14,
05/12 04Z,  -0.50,   8.33,  99.90,   7.69,  -0.14,
05/12 05Z,  -0.50,  11.12,  99.90,  10.48,  -0.14,
05/12 06Z,  -0.60,  13.55,  99.90,  12.81,  -0.14,
05/12 07Z,  -0.50,  14.95,  99.90,  14.31,  -0.14,
05/12 08Z,  -0.40,  14.99,  99.90,  14.45,  -0.14,  (max)
05/12 09Z,  -0.30,  13.69,  99.90,  13.25,  -0.14,
05/12 10Z,  -0.20,  11.39,  99.90,  11.05,  -0.14,
05/12 11Z,  -0.10,   8.60,  99.90,   8.35,  -0.14,
05/12 12Z,   0.00,   5.92,  99.90,   5.78,  -0.14,
05/12 13Z,   0.00,   4.11,  99.90,   3.97,  -0.14,
05/12 14Z,   0.00,   3.72,  99.90,   3.58,  -0.14,  (min)
05/12 15Z,   0.00,   4.70,  99.90,   4.56,  -0.14,
05/12 16Z,   0.00,   6.69,  99.90,   6.55,  -0.14,
05/12 17Z,   0.00,   9.28,  99.90,   9.14,  -0.14,
05/12 18Z,   0.00,  11.82,  99.90,  11.68,  -0.14,
05/12 19Z,   0.00,  13.55,  99.90,  13.41,  -0.14,
05/12 20Z,   0.00,  13.97,  99.90,  13.83,  -0.14,  (max)
05/12 21Z,   0.10,  13.00,  99.90,  12.96,  -0.14,
05/12 22Z,   0.10,  10.92,  99.90,  10.88,  -0.14,
05/12 23Z,   0.10,   8.23,  99.90,   8.19,  -0.14,
05/13 00Z,   0.10,   5.51,  99.90,   5.47,  -0.14,
05/13 01Z,   0.10,   3.50,  99.90,   3.46,  -0.14,
05/13 02Z,   0.00,   2.92,  99.90,   2.78,  -0.14,  (min)
05/13 03Z,   0.00,   3.97,  99.90,   3.83,  -0.14,
05/13 04Z,   0.00,   6.30,  99.90,   6.16,  -0.14,
05/13 05Z,   0.00,   9.43,  99.90,   9.29,  -0.14,
05/13 06Z,   0.10,  12.74,  99.90,  12.70,  -0.14,
05/13 07Z,   0.20,  15.36,  99.90,  15.42,  -0.14,
05/13 08Z,   0.30,  16.57,  99.90,  16.73,  -0.14,  (max)
05/13 09Z,   0.40,  16.07,  99.90,  16.33,  -0.14,
05/13 10Z,   0.40,  13.98,  99.90,  14.24,  -0.14,
05/13 11Z,   0.40,  10.77,  99.90,  11.03,  -0.14,
05/13 12Z,   0.40,   7.09,  99.90,   7.35,  -0.14,
05/13 13Z,   0.30,   3.76,  99.90,   3.91,  -0.14,
05/13 14Z,   0.20,   1.70,  99.90,   1.76,  -0.14,
05/13 15Z,   0.00,   1.52,  99.90,   1.37,  -0.14,  (min)
05/13 16Z,   0.00,   3.08,  99.90,   2.94,  -0.14,
05/13 17Z,   0.00,   5.92,  99.90,   5.78,  -0.14,
05/13 18Z,   0.10,   9.41,  99.90,   9.37,  -0.14,
05/13 19Z,   0.10,  12.67,  99.90,  12.63,  -0.14,
05/13 20Z,   0.20,  14.79,  99.90,  14.85,  -0.14,
05/13 21Z,   0.20,  15.27,  99.90,  15.33,  -0.14,  (max)
05/13 22Z,   0.20,  14.05,  99.90,  14.11,  -0.14,
05/13 23Z,   0.20,  11.49,  99.90,  11.55,  -0.14,
05/14 00Z,   0.20,   8.22,  99.90,   8.28,  -0.14,
05/14 01Z,   0.10,   5.02,  99.90,   4.98,  -0.14,
05/14 02Z,   0.00,   2.84,  99.90,   2.70,  -0.14,
05/14 03Z,   0.00,   2.51,  99.90,   2.37,  -0.14,  (min)
05/14 04Z,  -0.10,   4.13,  99.90,   3.89,  -0.14,
05/14 05Z,  -0.10,   7.21,  99.90,   6.97,  -0.14,
05/14 06Z,   0.00,  11.05,  99.90,  10.90,  -0.14,
05/14 07Z,   0.00,  14.76,  99.90,  14.62,  -0.14,
05/14 08Z,   0.10,  17.36,  99.90,  17.32,  -0.14,
05/14 09Z,   0.10,  18.11,  99.90,  18.07,  -0.14,  (max)
05/14 10Z,   0.10,  16.83,  99.90,  16.79,  -0.14,
05/14 11Z,   0.10,  13.76,  99.90,  13.72,  -0.14,
05/14 12Z,   0.00,   9.54,  99.90,   9.40,  -0.14,
05/14 13Z,   0.00,   5.00,  99.90,   4.86,  -0.14,
05/14 14Z,  -0.10,   1.18,  99.90,   0.94,  -0.14,
05/14 15Z,  -0.10,  -0.83,  99.90,  -1.07,  -0.14,  (min)
05/14 16Z,  -0.10,  -0.49,  99.90,  -0.73,  -0.14,
05/14 17Z,  -0.10,   1.94,  99.90,   1.70,  -0.14,
05/14 18Z,  -0.10,   5.76,  99.90,   5.52,  -0.14,
05/14 19Z,  99.90,  10.12,  99.90,  99.90,  -0.14,
05/14 20Z,  99.90,  13.93,  99.90,  99.90,  -0.14,
05/14 21Z,  99.90,  16.23,  99.90,  99.90,  -0.14,
05/14 22Z,  99.90,  16.53,  99.90,  99.90,  -0.14,
05/14 23Z,  99.90,  14.86,  99.90,  99.90,  -0.14,
05/15 00Z,  99.90,  11.70,  99.90,  99.90,  -0.14,