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 : 07/17/2025 14:21:53 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/15 18Z,   0.00,  -0.07,  -0.84,  99.90,  -0.77,
07/15 19Z,   0.00,  -0.87,  -1.55,  99.90,  -0.68,  (min)
07/15 20Z,   0.00,  -0.35,  -1.09,  99.90,  -0.74,
07/15 21Z,   0.00,   1.32,   0.49,  99.90,  -0.83,
07/15 22Z,   0.00,   3.67,   2.79,  99.90,  -0.88,
07/15 23Z,   0.00,   6.18,   5.36,  99.90,  -0.82,
07/16 00Z,   0.00,   8.28,   7.41,  99.90,  -0.87,
07/16 01Z,   0.00,   9.52,   8.66,  99.90,  -0.86,
07/16 02Z,   0.00,   9.65,   8.72,  99.90,  -0.93,  (max)
07/16 03Z,   0.00,   8.73,   7.89,  99.90,  -0.84,
07/16 04Z,   0.00,   7.05,   6.25,  99.90,  -0.80,
07/16 05Z,   0.00,   5.02,   4.36,  99.90,  -0.66,
07/16 06Z,   0.00,   3.17,   2.43,  99.90,  -0.74,
07/16 07Z,   0.10,   2.04,   1.29,  99.90,  -0.85,
07/16 08Z,   0.00,   1.99,   1.24,  99.90,  -0.75,  (min)
07/16 09Z,   0.20,   2.96,   2.17,  99.90,  -0.99,
07/16 10Z,  -0.10,   4.63,   3.75,  99.90,  -0.78,
07/16 11Z,   0.10,   6.50,   5.79,  99.90,  -0.81,
07/16 12Z,   0.10,   8.11,   7.44,  99.90,  -0.77,
07/16 13Z,   0.10,   9.00,   8.27,  99.90,  -0.83,  (max)
07/16 14Z,   0.10,   8.89,   8.26,  99.90,  -0.73,
07/16 15Z,   0.00,   7.80,   7.08,  99.90,  -0.72,
07/16 16Z,   0.10,   5.98,   5.36,  99.90,  -0.72,
07/16 17Z,   0.10,   3.80,   3.36,  99.90,  -0.54,
07/16 18Z,   0.20,   1.76,   1.21,  99.90,  -0.75,
07/16 19Z,   0.20,   0.38,  -0.10,  99.90,  -0.68,
07/16 20Z,   0.30,   0.09,  -0.33,  99.90,  -0.72,  (min)
07/16 21Z,   0.10,   0.98,   0.58,  99.90,  -0.50,
07/16 22Z,   0.50,   2.80,   2.31,  99.90,  -0.99,
07/16 23Z,   0.30,   5.10,   4.44,  99.90,  -0.96,
07/17 00Z,   0.40,   7.37,   6.78,  99.90,  -0.99,
07/17 01Z,   0.50,   9.13,   8.48,  99.90,  -1.15,
07/17 02Z,   0.50,   9.97,   9.31,  99.90,  -1.16,  (max)
07/17 03Z,   0.50,   9.74,   9.09,  99.90,  -1.15,
07/17 04Z,   0.50,   8.56,   7.91,  99.90,  -1.15,
07/17 05Z,   0.40,   6.72,   6.05,  99.90,  -1.07,
07/17 06Z,   0.60,   4.64,   3.95,  99.90,  -1.29,
07/17 07Z,   0.60,   2.83,   2.17,  99.90,  -1.26,
07/17 08Z,   0.70,   1.78,   1.14,  99.90,  -1.34,  (min)
07/17 09Z,   0.70,   1.75,   1.21,  99.90,  -1.24,
07/17 10Z,   0.60,   2.66,   2.03,  99.90,  -1.23,
07/17 11Z,   0.60,   4.15,   3.41,  99.90,  -1.34,
07/17 12Z,   0.50,   5.82,   5.12,  99.90,  -1.20,
07/17 13Z,   0.50,   7.24,   6.50,  99.90,  -1.24,
07/17 14Z,   0.50,   8.01,   7.27,  99.90,  -1.24,  (max)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/17 15Z,   0.50,   7.92,  99.90,   7.21,  -1.21,
07/17 16Z,   0.50,   7.00,  99.90,   6.33,  -1.17,
07/17 17Z,   0.50,   5.49,  99.90,   4.85,  -1.14,
07/17 18Z,   0.60,   3.74,  99.90,   3.23,  -1.11,
07/17 19Z,   0.70,   2.18,  99.90,   1.80,  -1.08,
07/17 20Z,   0.80,   1.25,  99.90,   1.01,  -1.04,  (min)
07/17 21Z,   0.80,   1.31,  99.90,   1.10,  -1.01,
07/17 22Z,   0.80,   2.37,  99.90,   2.20,  -0.98,
07/17 23Z,   0.90,   4.16,  99.90,   4.12,  -0.94,
07/18 00Z,   0.90,   6.27,  99.90,   6.26,  -0.91,
07/18 01Z,   0.90,   8.26,  99.90,   8.28,  -0.88,
07/18 02Z,   0.80,   9.70,  99.90,   9.65,  -0.84,
07/18 03Z,   0.80,  10.25,  99.90,  10.21,  -0.84,  (max)
07/18 04Z,   0.80,   9.80,  99.90,   9.75,  -0.84,
07/18 05Z,   0.90,   8.47,  99.90,   8.53,  -0.84,
07/18 06Z,   0.80,   6.57,  99.90,   6.52,  -0.84,
07/18 07Z,   0.80,   4.46,  99.90,   4.42,  -0.84,
07/18 08Z,   0.90,   2.64,  99.90,   2.70,  -0.84,
07/18 09Z,   0.90,   1.55,  99.90,   1.61,  -0.84,
07/18 10Z,   0.90,   1.41,  99.90,   1.47,  -0.84,  (min)
07/18 11Z,   0.90,   2.12,  99.90,   2.18,  -0.84,
07/18 12Z,   0.90,   3.40,  99.90,   3.45,  -0.84,
07/18 13Z,   0.90,   4.89,  99.90,   4.94,  -0.84,
07/18 14Z,   0.80,   6.22,  99.90,   6.17,  -0.84,
07/18 15Z,   0.80,   7.03,  99.90,   6.99,  -0.84,
07/18 16Z,   0.80,   7.13,  99.90,   7.08,  -0.84,  (max)
07/18 17Z,   0.80,   6.53,  99.90,   6.49,  -0.84,
07/18 18Z,   0.80,   5.43,  99.90,   5.39,  -0.84,
07/18 19Z,   0.90,   4.12,  99.90,   4.17,  -0.84,
07/18 20Z,   0.90,   2.95,  99.90,   3.00,  -0.84,
07/18 21Z,   0.90,   2.32,  99.90,   2.38,  -0.84,  (min)
07/18 22Z,   0.90,   2.53,  99.90,   2.58,  -0.84,
07/18 23Z,   0.90,   3.56,  99.90,   3.62,  -0.84,
07/19 00Z,   0.90,   5.18,  99.90,   5.24,  -0.84,
07/19 01Z,   0.90,   7.06,  99.90,   7.11,  -0.84,
07/19 02Z,   0.90,   8.81,  99.90,   8.86,  -0.84,
07/19 03Z,   0.90,  10.04,  99.90,  10.10,  -0.84,
07/19 04Z,   0.90,  10.44,  99.90,  10.50,  -0.84,  (max)
07/19 05Z,   0.90,   9.90,  99.90,   9.96,  -0.84,
07/19 06Z,   1.00,   8.54,  99.90,   8.69,  -0.84,
07/19 07Z,   1.00,   6.61,  99.90,   6.76,  -0.84,
07/19 08Z,   1.00,   4.46,  99.90,   4.61,  -0.84,
07/19 09Z,   1.00,   2.54,  99.90,   2.70,  -0.84,
07/19 10Z,   1.00,   1.29,  99.90,   1.45,  -0.84,
07/19 11Z,   1.00,   0.92,  99.90,   1.08,  -0.84,  (min)
07/19 12Z,   1.00,   1.38,  99.90,   1.54,  -0.84,
07/19 13Z,   0.90,   2.46,  99.90,   2.51,  -0.84,
07/19 14Z,   0.90,   3.86,  99.90,   3.92,  -0.84,
07/19 15Z,   0.90,   5.25,  99.90,   5.30,  -0.84,
07/19 16Z,   0.90,   6.26,  99.90,   6.31,  -0.84,
07/19 17Z,   0.90,   6.67,  99.90,   6.72,  -0.84,  (max)
07/19 18Z,   0.90,   6.46,  99.90,   6.52,  -0.84,
07/19 19Z,   0.90,   5.77,  99.90,   5.82,  -0.84,
07/19 20Z,   1.00,   4.79,  99.90,   4.95,  -0.84,
07/19 21Z,   1.00,   3.85,  99.90,   4.01,  -0.84,
07/19 22Z,   1.00,   3.33,  99.90,   3.48,  -0.84,  (min)
07/19 23Z,   1.00,   3.49,  99.90,   3.64,  -0.84,
07/20 00Z,   0.90,   4.36,  99.90,   4.41,  -0.84,
07/20 01Z,   0.90,   5.77,  99.90,   5.82,  -0.84,
07/20 02Z,   0.90,   7.45,  99.90,   7.51,  -0.84,
07/20 03Z,   0.90,   9.08,  99.90,   9.13,  -0.84,
07/20 04Z,   0.90,  10.25,  99.90,  10.30,  -0.84,
07/20 05Z,   0.90,  10.64,  99.90,  10.69,  -0.84,  (max)
07/20 06Z,   1.00,  10.12,  99.90,  10.28,  -0.84,
07/20 07Z,   1.00,   8.77,  99.90,   8.93,  -0.84,
07/20 08Z,   1.00,   6.81,  99.90,   6.96,  -0.84,
07/20 09Z,   1.00,   4.54,  99.90,   4.69,  -0.84,
07/20 10Z,   0.90,   2.43,  99.90,   2.49,  -0.84,
07/20 11Z,   0.90,   0.93,  99.90,   0.98,  -0.84,
07/20 12Z,   0.90,   0.28,  99.90,   0.34,  -0.84,  (min)
07/20 13Z,   0.80,   0.51,  99.90,   0.47,  -0.84,
07/20 14Z,   0.80,   1.48,  99.90,   1.43,  -0.84,
07/20 15Z,   0.80,   2.93,  99.90,   2.89,  -0.84,
07/20 16Z,   0.80,   4.52,  99.90,   4.47,  -0.84,
07/20 17Z,   0.80,   5.83,  99.90,   5.79,  -0.84,
07/20 18Z,   0.90,   6.61,  99.90,   6.66,  -0.84,
07/20 19Z,   0.90,   6.77,  99.90,   6.82,  -0.84,  (max)
07/20 20Z,   0.90,   6.36,  99.90,   6.42,  -0.84,
07/20 21Z,   0.90,   5.56,  99.90,   5.61,  -0.84,
07/20 22Z,   0.90,   4.65,  99.90,   4.71,  -0.84,
07/20 23Z,   0.90,   4.04,  99.90,   4.09,  -0.84,
07/21 00Z,   0.80,   4.02,  99.90,   3.97,  -0.84,  (min)
07/21 01Z,   0.80,   4.67,  99.90,   4.63,  -0.84,
07/21 02Z,   0.80,   5.92,  99.90,   5.87,  -0.84,
07/21 03Z,   0.80,   7.53,  99.90,   7.48,  -0.84,
07/21 04Z,   0.80,   9.17,  99.90,   9.13,  -0.84,
07/21 05Z,   0.70,  10.42,  99.90,  10.28,  -0.84,
07/21 06Z,   0.80,  10.91,  99.90,  10.86,  -0.84,