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
#Port Townsend, WA : 10/06/2026 21:22:00 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/05 06Z,   0.70,   6.70,   6.86,  99.90,  -0.54,  (max)
10/05 07Z,   0.60,   6.17,   6.51,  99.90,  -0.26,
10/05 08Z,   0.60,   5.17,   5.59,  99.90,  -0.18,
10/05 09Z,   0.70,   3.82,   4.30,  99.90,  -0.22,
10/05 10Z,   0.70,   2.29,   2.75,  99.90,  -0.24,
10/05 11Z,   0.60,   0.88,   1.25,  99.90,  -0.23,
10/05 12Z,   0.60,  -0.05,   0.21,  99.90,  -0.34,
10/05 13Z,   0.70,  -0.27,  -0.11,  99.90,  -0.54,  (min)
10/05 14Z,   0.70,   0.14,   0.35,  99.90,  -0.49,
10/05 15Z,   0.60,   1.00,   1.20,  99.90,  -0.40,
10/05 16Z,   0.60,   2.22,   2.48,  99.90,  -0.34,
10/05 17Z,   0.70,   3.71,   4.13,  99.90,  -0.28,
10/05 18Z,   0.60,   5.32,   5.70,  99.90,  -0.22,
10/05 19Z,   0.60,   6.78,   7.12,  99.90,  -0.26,
10/05 20Z,   0.60,   7.85,   8.20,  99.90,  -0.25,
10/05 21Z,   0.60,   8.38,   8.60,  99.90,  -0.38,
10/05 22Z,   0.60,   8.30,   8.71,  99.90,  -0.19,  (max)
10/05 23Z,   0.60,   7.69,   8.09,  99.90,  -0.20,
10/06 00Z,   0.60,   6.83,   7.07,  99.90,  -0.36,
10/06 01Z,   0.60,   6.12,   6.32,  99.90,  -0.40,
10/06 02Z,   0.70,   5.73,   5.73,  99.90,  -0.70,
10/06 03Z,   0.60,   5.63,   5.73,  99.90,  -0.50,  (min)
10/06 04Z,   0.60,   5.73,   6.03,  99.90,  -0.30,
10/06 05Z,   0.70,   6.01,   6.21,  99.90,  -0.50,
10/06 06Z,   0.70,   6.34,   6.56,  99.90,  -0.48,
10/06 07Z,   0.60,   6.49,   6.74,  99.90,  -0.35,  (max)
10/06 08Z,   0.60,   6.25,   6.66,  99.90,  -0.19,
10/06 09Z,   0.70,   5.54,   6.04,  99.90,  -0.20,
10/06 10Z,   0.70,   4.40,   4.94,  99.90,  -0.16,
10/06 11Z,   0.60,   2.94,   3.47,  99.90,  -0.07,
10/06 12Z,   0.70,   1.50,   1.92,  99.90,  -0.28,
10/06 13Z,   0.70,   0.49,   0.75,  99.90,  -0.44,
10/06 14Z,   0.70,   0.18,   0.30,  99.90,  -0.58,  (min)
10/06 15Z,   0.70,   0.53,   0.68,  99.90,  -0.55,
10/06 16Z,   0.70,   1.36,   1.46,  99.90,  -0.60,
10/06 17Z,   0.70,   2.57,   2.73,  99.90,  -0.54,
10/06 18Z,   0.70,   4.10,   4.47,  99.90,  -0.33,
10/06 19Z,   0.60,   5.73,   5.94,  99.90,  -0.39,
10/06 20Z,   0.60,   7.17,   7.40,  99.90,  -0.37,
10/06 21Z,   0.70,   8.15,   8.36,  99.90,  -0.49,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/06 22Z,   0.70,   8.49,  99.90,   8.71,  -0.48,  (max)
10/06 23Z,   0.60,   8.09,  99.90,   8.22,  -0.47,
10/07 00Z,   0.60,   7.10,  99.90,   7.25,  -0.45,
10/07 01Z,   0.70,   5.94,  99.90,   6.20,  -0.44,
10/07 02Z,   0.70,   5.05,  99.90,   5.32,  -0.43,
10/07 03Z,   0.70,   4.62,  99.90,   4.90,  -0.42,
10/07 04Z,   0.70,   4.59,  99.90,   4.88,  -0.41,  (min)
10/07 05Z,   0.70,   4.86,  99.90,   5.16,  -0.39,
10/07 06Z,   0.60,   5.37,  99.90,   5.58,  -0.38,
10/07 07Z,   0.60,   5.97,  99.90,   6.20,  -0.37,
10/07 08Z,   0.60,   6.41,  99.90,   6.66,  -0.36,
10/07 09Z,   0.60,   6.47,  99.90,   6.72,  -0.35,  (max)
10/07 10Z,   0.70,   6.00,  99.90,   6.35,  -0.35,
10/07 11Z,   0.70,   4.98,  99.90,   5.33,  -0.35,
10/07 12Z,   0.70,   3.55,  99.90,   3.90,  -0.35,
10/07 13Z,   0.70,   2.08,  99.90,   2.43,  -0.35,
10/07 14Z,   0.70,   1.06,  99.90,   1.42,  -0.35,
10/07 15Z,   0.70,   0.77,  99.90,   1.12,  -0.35,  (min)
10/07 16Z,   0.70,   1.14,  99.90,   1.50,  -0.35,
10/07 17Z,   0.70,   2.01,  99.90,   2.37,  -0.35,
10/07 18Z,   0.70,   3.27,  99.90,   3.63,  -0.35,
10/07 19Z,   0.70,   4.82,  99.90,   5.17,  -0.35,
10/07 20Z,   0.70,   6.40,  99.90,   6.76,  -0.35,
10/07 21Z,   0.70,   7.70,  99.90,   8.05,  -0.35,
10/07 22Z,   0.70,   8.42,  99.90,   8.78,  -0.35,  (max)
10/07 23Z,   0.70,   8.38,  99.90,   8.73,  -0.35,
10/08 00Z,   0.70,   7.52,  99.90,   7.87,  -0.35,
10/08 01Z,   0.80,   6.12,  99.90,   6.57,  -0.35,
10/08 02Z,   0.70,   4.70,  99.90,   5.05,  -0.35,
10/08 03Z,   0.70,   3.74,  99.90,   4.10,  -0.35,
10/08 04Z,   0.80,   3.40,  99.90,   3.85,  -0.35,  (min)
10/08 05Z,   0.70,   3.55,  99.90,   3.91,  -0.35,
10/08 06Z,   0.70,   4.07,  99.90,   4.43,  -0.35,
10/08 07Z,   0.70,   4.87,  99.90,   5.23,  -0.35,
10/08 08Z,   0.70,   5.77,  99.90,   6.13,  -0.35,
10/08 09Z,   0.70,   6.49,  99.90,   6.85,  -0.35,
10/08 10Z,   0.70,   6.78,  99.90,   7.13,  -0.35,  (max)
10/08 11Z,   0.80,   6.46,  99.90,   6.92,  -0.35,
10/08 12Z,   0.80,   5.50,  99.90,   5.96,  -0.35,
10/08 13Z,   0.70,   4.08,  99.90,   4.43,  -0.35,
10/08 14Z,   0.70,   2.64,  99.90,   3.00,  -0.35,
10/08 15Z,   0.70,   1.72,  99.90,   2.07,  -0.35,
10/08 16Z,   0.80,   1.54,  99.90,   2.00,  -0.35,  (min)
10/08 17Z,   0.80,   2.03,  99.90,   2.48,  -0.35,
10/08 18Z,   0.80,   2.97,  99.90,   3.43,  -0.35,
10/08 19Z,   0.80,   4.27,  99.90,   4.72,  -0.35,
10/08 20Z,   0.80,   5.77,  99.90,   6.22,  -0.35,
10/08 21Z,   0.80,   7.19,  99.90,   7.64,  -0.35,
10/08 22Z,   0.80,   8.19,  99.90,   8.64,  -0.35,
10/08 23Z,   0.80,   8.48,  99.90,   8.94,  -0.35,  (max)
10/09 00Z,   0.80,   7.91,  99.90,   8.37,  -0.35,
10/09 01Z,   0.80,   6.55,  99.90,   7.00,  -0.35,
10/09 02Z,   0.90,   4.79,  99.90,   5.34,  -0.35,
10/09 03Z,   0.90,   3.24,  99.90,   3.80,  -0.35,
10/09 04Z,   0.90,   2.38,  99.90,   2.93,  -0.35,
10/09 05Z,   0.90,   2.26,  99.90,   2.81,  -0.35,  (min)
10/09 06Z,   0.90,   2.69,  99.90,   3.24,  -0.35,
10/09 07Z,   1.00,   3.51,  99.90,   4.17,  -0.35,
10/09 08Z,   1.00,   4.62,  99.90,   5.27,  -0.35,
10/09 09Z,   0.90,   5.78,  99.90,   6.34,  -0.35,
10/09 10Z,   1.00,   6.72,  99.90,   7.37,  -0.35,
10/09 11Z,   1.00,   7.14,  99.90,   7.80,  -0.35,  (max)
10/09 12Z,   1.10,   6.89,  99.90,   7.65,  -0.35,
10/09 13Z,   1.10,   5.95,  99.90,   6.70,  -0.35,
10/09 14Z,   1.10,   4.56,  99.90,   5.31,  -0.35,
10/09 15Z,   1.20,   3.24,  99.90,   4.09,  -0.35,
10/09 16Z,   1.30,   2.50,  99.90,   3.46,  -0.35,  (min)
10/09 17Z,   1.30,   2.52,  99.90,   3.48,  -0.35,
10/09 18Z,   1.30,   3.14,  99.90,   4.09,  -0.35,
10/09 19Z,   1.40,   4.14,  99.90,   5.19,  -0.35,
10/09 20Z,   1.40,   5.40,  99.90,   6.45,  -0.35,
10/09 21Z,   1.30,   6.75,  99.90,   7.70,  -0.35,
10/09 22Z,   1.30,   7.87,  99.90,   8.83,  -0.35,
10/09 23Z,   1.30,   8.43,  99.90,   9.38,  -0.35,  (max)
10/10 00Z,   1.40,   8.17,  99.90,   9.23,  -0.35,
10/10 01Z,   1.40,   7.04,  99.90,   8.09,  -0.35,
10/10 02Z,   1.30,   5.22,  99.90,   6.18,  -0.35,
10/10 03Z,   1.30,   3.25,  99.90,   4.21,  -0.35,
10/10 04Z,   1.20,   1.78,  99.90,   2.63,  -0.35,
10/10 05Z,   1.10,   1.17,  99.90,   1.92,  -0.35,  (min)
10/10 06Z,   1.00,   1.37,  99.90,   2.02,  -0.35,
10/10 07Z,   1.00,   2.13,  99.90,   2.79,  -0.35,
10/10 08Z,   0.90,   3.27,  99.90,   3.82,  -0.35,
10/10 09Z,   0.90,   4.64,  99.90,   5.19,  -0.35,
10/10 10Z,   0.90,   6.00,  99.90,   6.56,  -0.35,
10/10 11Z,   0.90,   7.05,  99.90,   7.61,  -0.35,
10/10 12Z,   0.90,   7.52,  99.90,   8.08,  -0.35,
10/10 13Z,  99.90,   7.27,  99.90,  99.90,  -0.35,
10/10 14Z,  99.90,   6.33,  99.90,  99.90,  -0.35,
10/10 15Z,  99.90,   5.03,  99.90,  99.90,  -0.35,
10/10 16Z,  99.90,   3.91,  99.90,  99.90,  -0.35,
10/10 17Z,  99.90,   3.42,  99.90,  99.90,  -0.35,
10/10 18Z,  99.90,   3.64,  99.90,  99.90,  -0.35,