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
#North Spit, CA : 07/18/2026 04:21:52 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/16 12Z,   0.30,   2.39,   3.39,  99.90,   0.70,
07/16 13Z,   0.30,   0.35,   1.48,  99.90,   0.83,
07/16 14Z,   0.40,  -1.12,  -0.23,  99.90,   0.49,
07/16 15Z,   0.30,  -1.67,  -1.02,  99.90,   0.35,  (min)
07/16 16Z,   0.30,  -1.21,  -0.41,  99.90,   0.50,
07/16 17Z,   0.30,   0.01,   0.80,  99.90,   0.49,
07/16 18Z,   0.40,   1.66,   2.39,  99.90,   0.33,
07/16 19Z,   0.40,   3.39,   4.10,  99.90,   0.31,
07/16 20Z,   0.40,   4.90,   5.51,  99.90,   0.21,
07/16 21Z,   0.40,   5.88,   6.52,  99.90,   0.24,
07/16 22Z,   0.40,   6.12,   6.87,  99.90,   0.35,  (max)
07/16 23Z,   0.40,   5.65,   6.41,  99.90,   0.36,
07/17 00Z,   0.50,   4.68,   5.39,  99.90,   0.21,
07/17 01Z,   0.50,   3.53,   4.27,  99.90,   0.24,
07/17 02Z,   0.50,   2.57,   3.42,  99.90,   0.35,
07/17 03Z,   0.50,   2.18,   3.00,  99.90,   0.32,  (min)
07/17 04Z,   0.50,   2.52,   3.30,  99.90,   0.28,
07/17 05Z,   0.50,   3.49,   4.21,  99.90,   0.22,
07/17 06Z,   0.40,   4.77,   5.43,  99.90,   0.26,
07/17 07Z,   0.40,   6.03,   6.70,  99.90,   0.27,
07/17 08Z,   0.40,   6.99,   7.68,  99.90,   0.29,
07/17 09Z,   0.40,   7.37,   8.13,  99.90,   0.36,  (max)
07/17 10Z,   0.50,   6.95,   7.67,  99.90,   0.22,
07/17 11Z,   0.50,   5.75,   6.51,  99.90,   0.26,
07/17 12Z,   0.30,   3.99,   4.90,  99.90,   0.61,
07/17 13Z,   0.30,   2.02,   3.03,  99.90,   0.71,
07/17 14Z,   0.30,   0.26,   1.30,  99.90,   0.74,
07/17 15Z,   0.30,  -0.88,  -0.06,  99.90,   0.52,
07/17 16Z,   0.30,  -1.10,  -0.36,  99.90,   0.44,  (min)
07/17 17Z,   0.30,  -0.41,   0.40,  99.90,   0.51,
07/17 18Z,   0.40,   0.91,   1.75,  99.90,   0.44,
07/17 19Z,   0.40,   2.54,   3.30,  99.90,   0.36,
07/17 20Z,   0.30,   4.17,   4.89,  99.90,   0.42,
07/17 21Z,   0.30,   5.50,   6.17,  99.90,   0.37,
07/17 22Z,   0.30,   6.23,   7.00,  99.90,   0.47,
07/17 23Z,   0.30,   6.23,   7.00,  99.90,   0.47,  (max)
07/18 00Z,   0.30,   5.56,   6.23,  99.90,   0.37,
07/18 01Z,   0.40,   4.47,   5.15,  99.90,   0.28,
07/18 02Z,   0.40,   3.27,   4.02,  99.90,   0.35,
07/18 03Z,   0.30,   2.33,   3.10,  99.90,   0.47,
07/18 04Z,   0.40,   1.97,   2.78,  99.90,   0.41,  (min)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/18 05Z,   0.30,   2.33,  99.90,   3.04,   0.40,
07/18 06Z,   0.30,   3.25,  99.90,   3.95,   0.40,
07/18 07Z,   0.30,   4.42,  99.90,   5.12,   0.40,
07/18 08Z,   0.30,   5.55,  99.90,   6.24,   0.39,
07/18 09Z,   0.40,   6.38,  99.90,   7.17,   0.39,
07/18 10Z,   0.40,   6.65,  99.90,   7.43,   0.38,  (max)
07/18 11Z,   0.40,   6.19,  99.90,   6.97,   0.38,
07/18 12Z,   0.40,   5.05,  99.90,   5.83,   0.38,
07/18 13Z,   0.40,   3.48,  99.90,   4.25,   0.37,
07/18 14Z,   0.40,   1.81,  99.90,   2.58,   0.37,
07/18 15Z,   0.40,   0.42,  99.90,   1.18,   0.37,
07/18 16Z,   0.30,  -0.35,  99.90,   0.32,   0.36,  (min)
07/18 17Z,   0.30,  -0.27,  99.90,   0.39,   0.36,
07/18 18Z,   0.40,   0.58,  99.90,   1.34,   0.36,
07/18 19Z,   0.40,   1.93,  99.90,   2.69,   0.36,
07/18 20Z,   0.30,   3.46,  99.90,   4.13,   0.36,
07/18 21Z,   0.30,   4.91,  99.90,   5.57,   0.36,
07/18 22Z,   0.30,   5.99,  99.90,   6.66,   0.36,
07/18 23Z,   0.40,   6.47,  99.90,   7.23,   0.36,  (max)
07/19 00Z,   0.40,   6.23,  99.90,   7.00,   0.36,
07/19 01Z,   0.40,   5.40,  99.90,   6.17,   0.36,
07/19 02Z,   0.40,   4.24,  99.90,   5.00,   0.36,
07/19 03Z,   0.40,   3.03,  99.90,   3.80,   0.36,
07/19 04Z,   0.40,   2.13,  99.90,   2.89,   0.36,
07/19 05Z,   0.40,   1.80,  99.90,   2.57,   0.36,  (min)
07/19 06Z,   0.40,   2.13,  99.90,   2.90,   0.36,
07/19 07Z,   0.40,   2.95,  99.90,   3.71,   0.36,
07/19 08Z,   0.40,   3.97,  99.90,   4.74,   0.36,
07/19 09Z,   0.50,   4.95,  99.90,   5.82,   0.36,
07/19 10Z,   0.50,   5.66,  99.90,   6.52,   0.36,
07/19 11Z,   0.50,   5.85,  99.90,   6.72,   0.36,  (max)
07/19 12Z,   0.50,   5.42,  99.90,   6.28,   0.36,
07/19 13Z,   0.50,   4.43,  99.90,   5.29,   0.36,
07/19 14Z,   0.50,   3.14,  99.90,   4.00,   0.36,
07/19 15Z,   0.50,   1.83,  99.90,   2.70,   0.36,
07/19 16Z,   0.40,   0.83,  99.90,   1.59,   0.36,
07/19 17Z,   0.50,   0.41,  99.90,   1.28,   0.36,  (min)
07/19 18Z,   0.50,   0.72,  99.90,   1.59,   0.36,
07/19 19Z,   0.50,   1.65,  99.90,   2.52,   0.36,
07/19 20Z,   0.50,   2.94,  99.90,   3.80,   0.36,
07/19 21Z,   0.50,   4.30,  99.90,   5.17,   0.36,
07/19 22Z,   0.50,   5.52,  99.90,   6.39,   0.36,
07/19 23Z,   0.50,   6.35,  99.90,   7.21,   0.36,
07/20 00Z,   0.50,   6.57,  99.90,   7.43,   0.36,  (max)
07/20 01Z,   0.50,   6.14,  99.90,   7.00,   0.36,
07/20 02Z,   0.50,   5.21,  99.90,   6.07,   0.36,
07/20 03Z,   0.50,   4.01,  99.90,   4.88,   0.36,
07/20 04Z,   0.60,   2.83,  99.90,   3.79,   0.36,
07/20 05Z,   0.50,   1.95,  99.90,   2.82,   0.36,
07/20 06Z,   0.50,   1.63,  99.90,   2.49,   0.36,  (min)
07/20 07Z,   0.50,   1.90,  99.90,   2.76,   0.36,
07/20 08Z,   0.60,   2.58,  99.90,   3.55,   0.36,
07/20 09Z,   0.60,   3.45,  99.90,   4.42,   0.36,
07/20 10Z,   0.60,   4.30,  99.90,   5.26,   0.36,
07/20 11Z,   0.60,   4.91,  99.90,   5.88,   0.36,
07/20 12Z,   0.60,   5.10,  99.90,   6.06,   0.36,  (max)
07/20 13Z,   0.60,   4.76,  99.90,   5.72,   0.36,
07/20 14Z,   0.60,   4.00,  99.90,   4.96,   0.36,
07/20 15Z,   0.60,   3.03,  99.90,   4.00,   0.36,
07/20 16Z,   0.50,   2.10,  99.90,   2.97,   0.36,
07/20 17Z,   0.60,   1.45,  99.90,   2.42,   0.36,
07/20 18Z,   0.50,   1.31,  99.90,   2.17,   0.36,  (min)
07/20 19Z,   0.50,   1.75,  99.90,   2.62,   0.36,
07/20 20Z,   0.50,   2.67,  99.90,   3.54,   0.36,
07/20 21Z,   0.50,   3.82,  99.90,   4.69,   0.36,
07/20 22Z,   0.50,   4.99,  99.90,   5.85,   0.36,
07/20 23Z,   0.50,   5.97,  99.90,   6.83,   0.36,
07/21 00Z,   0.50,   6.55,  99.90,   7.41,   0.36,
07/21 01Z,   0.50,   6.55,  99.90,   7.42,   0.36,  (max)
07/21 02Z,   0.50,   5.98,  99.90,   6.85,   0.36,
07/21 03Z,   0.50,   4.99,  99.90,   5.86,   0.36,
07/21 04Z,   0.50,   3.80,  99.90,   4.66,   0.36,
07/21 05Z,   0.50,   2.64,  99.90,   3.50,   0.36,
07/21 06Z,   0.40,   1.78,  99.90,   2.54,   0.36,
07/21 07Z,   0.50,   1.43,  99.90,   2.29,   0.36,  (min)
07/21 08Z,   0.50,   1.61,  99.90,   2.47,   0.36,
07/21 09Z,   0.50,   2.17,  99.90,   3.03,   0.36,
07/21 10Z,   0.50,   2.92,  99.90,   3.78,   0.36,
07/21 11Z,   0.50,   3.67,  99.90,   4.54,   0.36,
07/21 12Z,   0.50,   4.26,  99.90,   5.13,   0.36,
07/21 13Z,   0.50,   4.50,  99.90,   5.36,   0.36,  (max)
07/21 14Z,   0.50,   4.32,  99.90,   5.18,   0.36,
07/21 15Z,   0.50,   3.81,  99.90,   4.68,   0.36,
07/21 16Z,   0.40,   3.17,  99.90,   3.94,   0.36,
07/21 17Z,   0.40,   2.56,  99.90,   3.33,   0.36,
07/21 18Z,   0.50,   2.17,  99.90,   3.04,   0.36,
07/21 19Z,  99.90,   2.19,  99.90,  99.90,   0.36,
07/21 20Z,  99.90,   2.68,  99.90,  99.90,   0.36,
07/21 21Z,  99.90,   3.52,  99.90,  99.90,   0.36,
07/21 22Z,  99.90,   4.51,  99.90,  99.90,   0.36,
07/21 23Z,  99.90,   5.47,  99.90,  99.90,   0.36,
07/22 00Z,  99.90,   6.24,  99.90,  99.90,   0.36,