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 : 09/08/2026 18:21:49 GMT (units in feet MSL)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
09/07 00Z,   0.60,   2.52,   3.44,  99.90,   0.32,  (max)
09/07 01Z,   0.60,   2.06,   2.83,  99.90,   0.17,
09/07 02Z,   0.60,   1.85,   2.49,  99.90,   0.04,  (min)
09/07 03Z,   0.60,   1.90,   2.56,  99.90,   0.06,
09/07 04Z,   0.60,   2.06,   2.69,  99.90,   0.03,
09/07 05Z,   0.70,   2.28,   2.92,  99.90,  -0.06,
09/07 06Z,   0.80,   2.48,   3.02,  99.90,  -0.26,  (max)
09/07 07Z,   0.70,   2.49,   2.98,  99.90,  -0.21,
09/07 08Z,   0.70,   2.07,   2.57,  99.90,  -0.20,
09/07 09Z,   0.70,   1.11,   1.63,  99.90,  -0.18,
09/07 10Z,   0.70,  -0.33,   0.21,  99.90,  -0.16,
09/07 11Z,   0.70,  -2.13,  -1.67,  99.90,  -0.24,
09/07 12Z,   0.60,  -3.97,  -3.64,  99.90,  -0.27,
09/07 13Z,   0.60,  -5.41,  -5.14,  99.90,  -0.33,
09/07 14Z,   0.60,  -6.10,  -5.83,  99.90,  -0.33,  (min)
09/07 15Z,   0.60,  -5.98,  -5.76,  99.90,  -0.38,
09/07 16Z,   0.60,  -5.27,  -4.95,  99.90,  -0.28,
09/07 17Z,   0.60,  -4.13,  -3.69,  99.90,  -0.16,
09/07 18Z,   0.40,  -2.64,  -2.21,  99.90,   0.03,
09/07 19Z,   0.30,  -0.92,  -0.45,  99.90,   0.17,
09/07 20Z,   0.30,   0.78,   1.25,  99.90,   0.17,
09/07 21Z,   0.40,   2.18,   2.67,  99.90,   0.09,
09/07 22Z,   0.40,   3.08,   3.45,  99.90,  -0.03,
09/07 23Z,   0.30,   3.32,   3.76,  99.90,   0.14,  (max)
09/08 00Z,   0.30,   2.93,   3.53,  99.90,   0.30,
09/08 01Z,   0.30,   2.18,   2.84,  99.90,   0.36,
09/08 02Z,   0.30,   1.51,   2.07,  99.90,   0.26,
09/08 03Z,   0.30,   1.21,   1.68,  99.90,   0.17,  (min)
09/08 04Z,   0.30,   1.25,   1.70,  99.90,   0.15,
09/08 05Z,   0.30,   1.49,   1.91,  99.90,   0.12,
09/08 06Z,   0.50,   1.84,   2.29,  99.90,  -0.05,
09/08 07Z,   0.40,   2.22,   2.59,  99.90,  -0.03,
09/08 08Z,   0.40,   2.42,   2.81,  99.90,  -0.01,  (max)
09/08 09Z,   0.40,   2.18,   2.54,  99.90,  -0.04,
09/08 10Z,   0.40,   1.37,   1.72,  99.90,  -0.05,
09/08 11Z,   0.40,  -0.03,   0.29,  99.90,  -0.08,
09/08 12Z,   0.50,  -1.88,  -1.63,  99.90,  -0.25,
09/08 13Z,   0.50,  -3.82,  -3.68,  99.90,  -0.36,
09/08 14Z,   0.50,  -5.34,  -5.21,  99.90,  -0.37,
09/08 15Z,   0.40,  -6.04,  -6.11,  99.90,  -0.47,  (min)
09/08 16Z,   0.40,  -5.89,  -5.97,  99.90,  -0.48,
09/08 17Z,   0.50,  -5.11,  -4.97,  99.90,  -0.36,
09/08 18Z,   0.40,  -3.87,  -3.58,  99.90,  -0.11,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
09/08 19Z,   0.40,  -2.25,  99.90,  -1.95,  -0.11,
09/08 20Z,   0.40,  -0.42,  99.90,  -0.11,  -0.10,
09/08 21Z,   0.40,   1.33,  99.90,   1.64,  -0.09,
09/08 22Z,   0.40,   2.68,  99.90,   3.00,  -0.08,
09/08 23Z,   0.40,   3.37,  99.90,   3.70,  -0.08,  (max)
09/09 00Z,   0.40,   3.27,  99.90,   3.61,  -0.07,
09/09 01Z,   0.40,   2.49,  99.90,   2.83,  -0.06,
09/09 02Z,   0.40,   1.44,  99.90,   1.78,  -0.05,
09/09 03Z,   0.40,   0.62,  99.90,   0.98,  -0.04,
09/09 04Z,   0.40,   0.32,  99.90,   0.68,  -0.04,  (min)
09/09 05Z,   0.40,   0.45,  99.90,   0.82,  -0.03,
09/09 06Z,   0.40,   0.84,  99.90,   1.22,  -0.02,
09/09 07Z,   0.40,   1.40,  99.90,   1.78,  -0.02,
09/09 08Z,   0.40,   2.00,  99.90,   2.38,  -0.02,
09/09 09Z,   0.40,   2.40,  99.90,   2.78,  -0.02,  (max)
09/09 10Z,   0.40,   2.32,  99.90,   2.70,  -0.02,
09/09 11Z,   0.40,   1.60,  99.90,   1.98,  -0.02,
09/09 12Z,   0.40,   0.19,  99.90,   0.57,  -0.02,
09/09 13Z,   0.40,  -1.72,  99.90,  -1.34,  -0.02,
09/09 14Z,   0.40,  -3.70,  99.90,  -3.33,  -0.02,
09/09 15Z,   0.40,  -5.18,  99.90,  -4.80,  -0.02,
09/09 16Z,   0.40,  -5.76,  99.90,  -5.38,  -0.02,  (min)
09/09 17Z,   0.40,  -5.48,  99.90,  -5.10,  -0.02,
09/09 18Z,   0.40,  -4.56,  99.90,  -4.18,  -0.02,
09/09 19Z,   0.30,  -3.19,  99.90,  -2.91,  -0.02,
09/09 20Z,   0.40,  -1.46,  99.90,  -1.09,  -0.02,
09/09 21Z,   0.40,   0.40,  99.90,   0.78,  -0.02,
09/09 22Z,   0.40,   2.06,  99.90,   2.43,  -0.02,
09/09 23Z,   0.40,   3.16,  99.90,   3.53,  -0.02,
09/10 00Z,   0.40,   3.45,  99.90,   3.83,  -0.02,  (max)
09/10 01Z,   0.40,   2.88,  99.90,   3.26,  -0.02,
09/10 02Z,   0.40,   1.67,  99.90,   2.05,  -0.02,
09/10 03Z,   0.40,   0.37,  99.90,   0.75,  -0.02,
09/10 04Z,   0.40,  -0.48,  99.90,  -0.10,  -0.02,
09/10 05Z,   0.50,  -0.69,  99.90,  -0.21,  -0.02,  (min)
09/10 06Z,   0.50,  -0.39,  99.90,   0.08,  -0.02,
09/10 07Z,   0.50,   0.21,  99.90,   0.68,  -0.02,
09/10 08Z,   0.50,   0.99,  99.90,   1.47,  -0.02,
09/10 09Z,   0.50,   1.81,  99.90,   2.29,  -0.02,
09/10 10Z,   0.60,   2.38,  99.90,   2.96,  -0.02,
09/10 11Z,   0.60,   2.42,  99.90,   2.99,  -0.02,  (max)
09/10 12Z,   0.60,   1.72,  99.90,   2.30,  -0.02,
09/10 13Z,   0.60,   0.30,  99.90,   0.88,  -0.02,
09/10 14Z,   0.60,  -1.62,  99.90,  -1.04,  -0.02,
09/10 15Z,   0.60,  -3.52,  99.90,  -2.95,  -0.02,
09/10 16Z,   0.70,  -4.81,  99.90,  -4.14,  -0.02,
09/10 17Z,   0.70,  -5.17,  99.90,  -4.49,  -0.02,  (min)
09/10 18Z,   0.60,  -4.68,  99.90,  -4.10,  -0.02,
09/10 19Z,   0.60,  -3.61,  99.90,  -3.03,  -0.02,
09/10 20Z,   0.60,  -2.13,  99.90,  -1.55,  -0.02,
09/10 21Z,   0.60,  -0.38,  99.90,   0.20,  -0.02,
09/10 22Z,   0.60,   1.38,  99.90,   1.96,  -0.02,
09/10 23Z,   0.60,   2.76,  99.90,   3.34,  -0.02,
09/11 00Z,   0.60,   3.44,  99.90,   4.01,  -0.02,  (max)
09/11 01Z,   0.70,   3.20,  99.90,   3.88,  -0.02,
09/11 02Z,   0.70,   2.11,  99.90,   2.79,  -0.02,
09/11 03Z,   0.70,   0.55,  99.90,   1.22,  -0.02,
09/11 04Z,   0.60,  -0.88,  99.90,  -0.30,  -0.02,
09/11 05Z,   0.70,  -1.66,  99.90,  -0.98,  -0.02,
09/11 06Z,   0.70,  -1.68,  99.90,  -1.00,  -0.02,  (min)
09/11 07Z,   0.70,  -1.17,  99.90,  -0.49,  -0.02,
09/11 08Z,   0.70,  -0.35,  99.90,   0.33,  -0.02,
09/11 09Z,   0.70,   0.65,  99.90,   1.33,  -0.02,
09/11 10Z,   0.70,   1.66,  99.90,   2.33,  -0.02,
09/11 11Z,   0.70,   2.35,  99.90,   3.03,  -0.02,
09/11 12Z,   0.70,   2.43,  99.90,   3.11,  -0.02,  (max)
09/11 13Z,   0.70,   1.75,  99.90,   2.43,  -0.02,
09/11 14Z,   0.70,   0.35,  99.90,   1.02,  -0.02,
09/11 15Z,   0.70,  -1.48,  99.90,  -0.80,  -0.02,
09/11 16Z,   0.70,  -3.17,  99.90,  -2.50,  -0.02,
09/11 17Z,   0.80,  -4.17,  99.90,  -3.39,  -0.02,
09/11 18Z,   0.70,  -4.23,  99.90,  -3.55,  -0.02,  (min)
09/11 19Z,   0.70,  -3.53,  99.90,  -2.85,  -0.02,
09/11 20Z,   0.80,  -2.35,  99.90,  -1.57,  -0.02,
09/11 21Z,   0.80,  -0.85,  99.90,  -0.07,  -0.02,
09/11 22Z,   0.80,   0.80,  99.90,   1.58,  -0.02,
09/11 23Z,   0.80,   2.30,  99.90,   3.08,  -0.02,
09/12 00Z,   0.80,   3.26,  99.90,   4.03,  -0.02,
09/12 01Z,   0.80,   3.38,  99.90,   4.15,  -0.02,  (max)
09/12 02Z,   0.90,   2.57,  99.90,   3.45,  -0.02,
09/12 03Z,   0.80,   1.03,  99.90,   1.81,  -0.02,
09/12 04Z,   0.80,  -0.77,  99.90,   0.01,  -0.02,
09/12 05Z,   0.90,  -2.17,  99.90,  -1.29,  -0.02,
09/12 06Z,   0.90,  -2.75,  99.90,  -1.87,  -0.02,  (min)
09/12 07Z,   0.80,  -2.53,  99.90,  -1.75,  -0.02,
09/12 08Z,   0.80,  -1.79,  99.90,  -1.02,  -0.02,
09/12 09Z,   0.80,  -0.77,  99.90,   0.01,  -0.02,
09/12 10Z,   0.80,   0.42,  99.90,   1.20,  -0.02,
09/12 11Z,   0.90,   1.55,  99.90,   2.43,  -0.02,
09/12 12Z,   0.90,   2.30,  99.90,   3.17,  -0.02,