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
#Seward, AK : 04/18/2025 23:23:31 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/17 06Z,   1.30,   3.31,   3.88,  99.90,  -0.73,  (min)
04/17 07Z,   1.30,   3.98,   4.31,  99.90,  -0.97,
04/17 08Z,   1.30,   5.41,   5.58,  99.90,  -1.13,
04/17 09Z,   1.30,   7.22,   7.51,  99.90,  -1.01,
04/17 10Z,   1.10,   8.92,   9.29,  99.90,  -0.73,
04/17 11Z,   1.00,  10.10,  10.37,  99.90,  -0.73,
04/17 12Z,   1.30,  10.39,  10.58,  99.90,  -1.11,  (max)
04/17 13Z,   1.20,   9.66,   9.85,  99.90,  -1.01,
04/17 14Z,   1.10,   8.06,   8.32,  99.90,  -0.84,
04/17 15Z,   1.00,   5.90,   6.19,  99.90,  -0.71,
04/17 16Z,   1.00,   3.60,   3.86,  99.90,  -0.74,
04/17 17Z,   1.00,   1.58,   1.75,  99.90,  -0.83,
04/17 18Z,   1.20,   0.30,   0.42,  99.90,  -1.08,
04/17 19Z,   1.20,   0.05,   0.20,  99.90,  -1.05,  (min)
04/17 20Z,   1.10,   0.82,   0.89,  99.90,  -1.03,
04/17 21Z,   1.10,   2.32,   2.37,  99.90,  -1.05,
04/17 22Z,   1.10,   4.14,   4.14,  99.90,  -1.10,
04/17 23Z,   1.10,   5.84,   6.05,  99.90,  -0.89,
04/18 00Z,   1.30,   7.07,   7.25,  99.90,  -1.12,
04/18 01Z,   1.20,   7.56,   7.73,  99.90,  -1.03,  (max)
04/18 02Z,   1.10,   7.31,   7.53,  99.90,  -0.88,
04/18 03Z,   1.10,   6.50,   6.71,  99.90,  -0.89,
04/18 04Z,   1.00,   5.44,   5.71,  99.90,  -0.73,
04/18 05Z,   1.00,   4.45,   4.63,  99.90,  -0.82,
04/18 06Z,   1.30,   3.88,   4.02,  99.90,  -1.16,  (min)
04/18 07Z,   1.20,   4.03,   4.18,  99.90,  -1.05,
04/18 08Z,   1.10,   4.94,   4.99,  99.90,  -1.05,
04/18 09Z,   1.10,   6.37,   6.40,  99.90,  -1.07,
04/18 10Z,   1.00,   7.92,   7.92,  99.90,  -1.00,
04/18 11Z,   1.00,   9.21,   9.29,  99.90,  -0.92,
04/18 12Z,   1.10,   9.91,   9.97,  99.90,  -1.04,  (max)
04/18 13Z,   1.10,   9.77,   9.75,  99.90,  -1.12,
04/18 14Z,   1.00,   8.78,   8.77,  99.90,  -1.01,
04/18 15Z,   1.00,   7.11,   7.10,  99.90,  -1.01,
04/18 16Z,   0.90,   5.11,   5.06,  99.90,  -0.95,
04/18 17Z,   0.90,   3.11,   3.03,  99.90,  -0.98,
04/18 18Z,   1.10,   1.48,   1.28,  99.90,  -1.30,
04/18 19Z,   1.00,   0.59,   0.43,  99.90,  -1.16,
04/18 20Z,   1.00,   0.62,   0.36,  99.90,  -1.26,  (min)
04/18 21Z,   1.00,   1.47,   1.17,  99.90,  -1.30,
04/18 22Z,   0.90,   2.84,   2.50,  99.90,  -1.24,
04/18 23Z,   0.90,   4.37,   4.07,  99.90,  -1.20,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/19 00Z,   0.90,   5.73,  99.90,   5.45,  -1.18,
04/19 01Z,   1.00,   6.65,  99.90,   6.49,  -1.16,
04/19 02Z,   1.00,   6.97,  99.90,   6.82,  -1.15,  (max)
04/19 03Z,   1.00,   6.70,  99.90,   6.58,  -1.13,
04/19 04Z,   1.00,   6.06,  99.90,   5.95,  -1.11,
04/19 05Z,   1.00,   5.28,  99.90,   5.19,  -1.09,
04/19 06Z,   0.90,   4.62,  99.90,   4.45,  -1.08,
04/19 07Z,   0.90,   4.37,  99.90,   4.21,  -1.06,  (min)
04/19 08Z,   0.90,   4.71,  99.90,   4.57,  -1.04,
04/19 09Z,   0.80,   5.64,  99.90,   5.42,  -1.03,
04/19 10Z,   0.70,   6.89,  99.90,   6.58,  -1.01,
04/19 11Z,   0.70,   8.12,  99.90,   7.83,  -0.99,
04/19 12Z,   0.60,   9.03,  99.90,   8.64,  -0.99,
04/19 13Z,   0.60,   9.40,  99.90,   9.01,  -0.99,  (max)
04/19 14Z,   0.50,   9.06,  99.90,   8.57,  -0.99,
04/19 15Z,   0.50,   8.02,  99.90,   7.53,  -0.99,
04/19 16Z,   0.50,   6.49,  99.90,   5.99,  -0.99,
04/19 17Z,   0.50,   4.72,  99.90,   4.23,  -0.99,
04/19 18Z,   0.50,   3.02,  99.90,   2.53,  -0.99,
04/19 19Z,   0.50,   1.68,  99.90,   1.19,  -0.99,
04/19 20Z,   0.50,   0.99,  99.90,   0.50,  -0.99,  (min)
04/19 21Z,   0.50,   1.09,  99.90,   0.60,  -0.99,
04/19 22Z,   0.40,   1.84,  99.90,   1.25,  -0.99,
04/19 23Z,   0.40,   2.99,  99.90,   2.40,  -0.99,
04/20 00Z,   0.30,   4.26,  99.90,   3.57,  -0.99,
04/20 01Z,   0.20,   5.41,  99.90,   4.62,  -0.99,
04/20 02Z,   0.20,   6.22,  99.90,   5.43,  -0.99,
04/20 03Z,   0.30,   6.55,  99.90,   5.86,  -0.99,  (max)
04/20 04Z,   0.30,   6.43,  99.90,   5.74,  -0.99,
04/20 05Z,   0.30,   6.00,  99.90,   5.31,  -0.99,
04/20 06Z,   0.30,   5.45,  99.90,   4.76,  -0.99,
04/20 07Z,   0.40,   4.98,  99.90,   4.39,  -0.99,
04/20 08Z,   0.40,   4.82,  99.90,   4.23,  -0.99,  (min)
04/20 09Z,   0.40,   5.14,  99.90,   4.55,  -0.99,
04/20 10Z,   0.40,   5.91,  99.90,   5.32,  -0.99,
04/20 11Z,   0.40,   6.89,  99.90,   6.29,  -0.99,
04/20 12Z,   0.30,   7.83,  99.90,   7.14,  -0.99,
04/20 13Z,   0.30,   8.52,  99.90,   7.83,  -0.99,
04/20 14Z,   0.30,   8.78,  99.90,   8.09,  -0.99,  (max)
04/20 15Z,   0.20,   8.47,  99.90,   7.67,  -0.99,
04/20 16Z,   0.20,   7.57,  99.90,   6.78,  -0.99,
04/20 17Z,   0.20,   6.26,  99.90,   5.47,  -0.99,
04/20 18Z,   0.20,   4.73,  99.90,   3.94,  -0.99,
04/20 19Z,   0.20,   3.21,  99.90,   2.42,  -0.99,
04/20 20Z,   0.20,   1.98,  99.90,   1.19,  -0.99,
04/20 21Z,   0.30,   1.30,  99.90,   0.61,  -0.99,
04/20 22Z,   0.30,   1.29,  99.90,   0.60,  -0.99,  (min)
04/20 23Z,   0.30,   1.87,  99.90,   1.18,  -0.99,
04/21 00Z,   0.30,   2.84,  99.90,   2.15,  -0.99,
04/21 01Z,   0.20,   3.99,  99.90,   3.20,  -0.99,
04/21 02Z,   0.20,   5.13,  99.90,   4.34,  -0.99,
04/21 03Z,   0.20,   6.03,  99.90,   5.24,  -0.99,
04/21 04Z,   0.20,   6.52,  99.90,   5.73,  -0.99,
04/21 05Z,   0.20,   6.58,  99.90,   5.79,  -0.99,  (max)
04/21 06Z,   0.30,   6.31,  99.90,   5.62,  -0.99,
04/21 07Z,   0.30,   5.83,  99.90,   5.13,  -0.99,
04/21 08Z,   0.30,   5.31,  99.90,   4.62,  -0.99,
04/21 09Z,   0.30,   5.02,  99.90,   4.33,  -0.99,  (min)
04/21 10Z,   0.30,   5.12,  99.90,   4.43,  -0.99,
04/21 11Z,   0.30,   5.62,  99.90,   4.93,  -0.99,
04/21 12Z,   0.40,   6.36,  99.90,   5.77,  -0.99,
04/21 13Z,   0.40,   7.16,  99.90,   6.57,  -0.99,
04/21 14Z,   0.30,   7.86,  99.90,   7.16,  -0.99,
04/21 15Z,   0.30,   8.24,  99.90,   7.55,  -0.99,  (max)
04/21 16Z,   0.40,   8.14,  99.90,   7.55,  -0.99,
04/21 17Z,   0.40,   7.50,  99.90,   6.91,  -0.99,
04/21 18Z,   0.40,   6.40,  99.90,   5.81,  -0.99,
04/21 19Z,   0.40,   5.00,  99.90,   4.41,  -0.99,
04/21 20Z,   0.50,   3.50,  99.90,   3.01,  -0.99,
04/21 21Z,   0.50,   2.20,  99.90,   1.71,  -0.99,
04/21 22Z,   0.50,   1.38,  99.90,   0.89,  -0.99,
04/21 23Z,   0.50,   1.21,  99.90,   0.72,  -0.99,  (min)
04/22 00Z,   0.50,   1.65,  99.90,   1.16,  -0.99,
04/22 01Z,   0.50,   2.58,  99.90,   2.09,  -0.99,
04/22 02Z,   0.50,   3.82,  99.90,   3.33,  -0.99,
04/22 03Z,   0.50,   5.15,  99.90,   4.66,  -0.99,
04/22 04Z,   0.50,   6.28,  99.90,   5.79,  -0.99,
04/22 05Z,   0.50,   6.97,  99.90,   6.48,  -0.99,
04/22 06Z,   0.60,   7.15,  99.90,   6.76,  -0.99,  (max)
04/22 07Z,   0.60,   6.85,  99.90,   6.46,  -0.99,
04/22 08Z,   0.60,   6.20,  99.90,   5.81,  -0.99,
04/22 09Z,   0.60,   5.41,  99.90,   5.02,  -0.99,
04/22 10Z,   0.60,   4.77,  99.90,   4.38,  -0.99,
04/22 11Z,   0.60,   4.54,  99.90,   4.15,  -0.99,  (min)
04/22 12Z,   0.60,   4.78,  99.90,   4.39,  -0.99,
04/22 13Z,   0.50,   5.41,  99.90,   4.92,  -0.99,
04/22 14Z,   0.50,   6.29,  99.90,   5.80,  -0.99,
04/22 15Z,   0.50,   7.22,  99.90,   6.73,  -0.99,
04/22 16Z,   0.50,   7.94,  99.90,   7.45,  -0.99,
04/22 17Z,   0.40,   8.16,  99.90,   7.57,  -0.99,  (max)
04/22 18Z,   0.40,   7.77,  99.90,   7.18,  -0.99,