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
#Seattle, WA : 10/07/2026 06:22:43 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/05 12Z,   0.80, -12.01, -11.57,  99.90,  -0.36,
10/05 13Z,   0.80, -13.22, -12.88,  99.90,  -0.46,
10/05 14Z,   0.80, -13.43, -13.23,  99.90,  -0.60,  (min)
10/05 15Z,   0.80, -12.63, -12.46,  99.90,  -0.63,
10/05 16Z,   0.80, -11.05, -10.93,  99.90,  -0.68,
10/05 17Z,   0.80,  -8.97,  -8.70,  99.90,  -0.53,
10/05 18Z,   0.80,  -6.77,  -6.25,  99.90,  -0.28,
10/05 19Z,   0.80,  -4.84,  -4.11,  99.90,  -0.07,
10/05 20Z,   0.80,  -3.44,  -2.68,  99.90,  -0.04,
10/05 21Z,   0.80,  -2.68,  -2.00,  99.90,  -0.12,  (max)
10/05 22Z,   0.80,  -2.55,  -2.12,  99.90,  -0.37,
10/05 23Z,   0.80,  -3.05,  -2.71,  99.90,  -0.46,
10/06 00Z,   0.80,  -4.12,  -3.72,  99.90,  -0.40,
10/06 01Z,   0.80,  -5.43,  -5.07,  99.90,  -0.44,
10/06 02Z,   0.80,  -6.56,  -6.25,  99.90,  -0.49,
10/06 03Z,   0.80,  -7.23,  -6.93,  99.90,  -0.50,
10/06 04Z,   0.80,  -7.32,  -6.94,  99.90,  -0.42,  (min)
10/06 05Z,   0.80,  -6.85,  -6.36,  99.90,  -0.31,
10/06 06Z,   0.80,  -6.01,  -5.60,  99.90,  -0.39,
10/06 07Z,   0.80,  -5.16,  -4.75,  99.90,  -0.39,
10/06 08Z,   0.80,  -4.71,  -4.24,  99.90,  -0.33,  (max)
10/06 09Z,   0.80,  -4.93,  -4.32,  99.90,  -0.19,
10/06 10Z,   0.80,  -5.86,  -5.22,  99.90,  -0.16,
10/06 11Z,   0.80,  -7.42,  -6.74,  99.90,  -0.12,
10/06 12Z,   0.90,  -9.38,  -8.73,  99.90,  -0.25,
10/06 13Z,   0.90, -11.33, -10.80,  99.90,  -0.37,
10/06 14Z,   0.90, -12.70, -12.37,  99.90,  -0.57,
10/06 15Z,   0.90, -13.09, -12.95,  99.90,  -0.76,  (min)
10/06 16Z,   0.90, -12.42, -12.30,  99.90,  -0.78,
10/06 17Z,   0.90, -10.88, -10.82,  99.90,  -0.84,
10/06 18Z,   0.80,  -8.74,  -8.52,  99.90,  -0.58,
10/06 19Z,   0.80,  -6.43,  -5.96,  99.90,  -0.33,
10/06 20Z,   0.80,  -4.41,  -3.72,  99.90,  -0.11,
10/06 21Z,   0.80,  -3.00,  -2.30,  99.90,  -0.10,
10/06 22Z,   0.80,  -2.32,  -1.73,  99.90,  -0.21,  (max)
10/06 23Z,   0.80,  -2.41,  -2.07,  99.90,  -0.46,
10/07 00Z,   0.80,  -3.28,  -2.99,  99.90,  -0.51,
10/07 01Z,   0.80,  -4.78,  -4.40,  99.90,  -0.42,
10/07 02Z,   0.80,  -6.49,  -6.13,  99.90,  -0.44,
10/07 03Z,   0.80,  -7.90,  -7.59,  99.90,  -0.49,
10/07 04Z,   0.80,  -8.64,  -8.25,  99.90,  -0.41,  (min)
10/07 05Z,   0.80,  -8.60,  -8.01,  99.90,  -0.21,
10/07 06Z,   0.80,  -7.81,  -7.13,  99.90,  -0.12,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/07 07Z,   0.80,  -6.54,  99.90,  -5.89,  -0.14,
10/07 08Z,   0.80,  -5.27,  99.90,  -4.64,  -0.17,
10/07 09Z,   0.80,  -4.48,  99.90,  -3.87,  -0.19,  (max)
10/07 10Z,   0.70,  -4.44,  99.90,  -3.95,  -0.21,
10/07 11Z,   0.70,  -5.21,  99.90,  -4.74,  -0.23,
10/07 12Z,   0.70,  -6.71,  99.90,  -6.26,  -0.25,
10/07 13Z,   0.70,  -8.73,  99.90,  -8.30,  -0.27,
10/07 14Z,   0.70, -10.77,  99.90, -10.36,  -0.29,
10/07 15Z,   0.80, -12.22,  99.90, -11.73,  -0.31,
10/07 16Z,   0.80, -12.64,  99.90, -12.18,  -0.34,  (min)
10/07 17Z,   0.80, -11.95,  99.90, -11.50,  -0.36,
10/07 18Z,   0.80, -10.30,  99.90,  -9.88,  -0.38,
10/07 19Z,   0.80,  -8.04,  99.90,  -7.62,  -0.38,
10/07 20Z,   0.80,  -5.67,  99.90,  -5.24,  -0.38,
10/07 21Z,   0.80,  -3.68,  99.90,  -3.26,  -0.38,
10/07 22Z,   0.80,  -2.45,  99.90,  -2.03,  -0.38,
10/07 23Z,   0.80,  -2.08,  99.90,  -1.66,  -0.38,  (max)
10/08 00Z,   0.80,  -2.60,  99.90,  -2.18,  -0.38,
10/08 01Z,   0.80,  -3.99,  99.90,  -3.57,  -0.38,
10/08 02Z,   0.80,  -5.97,  99.90,  -5.55,  -0.38,
10/08 03Z,   0.80,  -8.02,  99.90,  -7.60,  -0.38,
10/08 04Z,   0.80,  -9.52,  99.90,  -9.10,  -0.38,
10/08 05Z,   0.80, -10.12,  99.90,  -9.70,  -0.38,  (min)
10/08 06Z,   0.80,  -9.72,  99.90,  -9.30,  -0.38,
10/08 07Z,   0.80,  -8.46,  99.90,  -8.04,  -0.38,
10/08 08Z,   0.80,  -6.74,  99.90,  -6.32,  -0.38,
10/08 09Z,   0.80,  -5.11,  99.90,  -4.69,  -0.38,
10/08 10Z,   0.80,  -4.08,  99.90,  -3.66,  -0.38,
10/08 11Z,   0.80,  -3.91,  99.90,  -3.49,  -0.38,  (max)
10/08 12Z,   0.80,  -4.63,  99.90,  -4.21,  -0.38,
10/08 13Z,   0.80,  -6.17,  99.90,  -5.74,  -0.38,
10/08 14Z,   0.80,  -8.23,  99.90,  -7.81,  -0.38,
10/08 15Z,   0.80, -10.28,  99.90,  -9.86,  -0.38,
10/08 16Z,   0.80, -11.67,  99.90, -11.25,  -0.38,
10/08 17Z,   0.80, -11.96,  99.90, -11.54,  -0.38,  (min)
10/08 18Z,   0.80, -11.09,  99.90, -10.67,  -0.38,
10/08 19Z,   0.80,  -9.28,  99.90,  -8.86,  -0.38,
10/08 20Z,   0.80,  -6.94,  99.90,  -6.52,  -0.38,
10/08 21Z,   0.80,  -4.62,  99.90,  -4.20,  -0.38,
10/08 22Z,   0.80,  -2.88,  99.90,  -2.46,  -0.38,
10/08 23Z,   0.80,  -2.04,  99.90,  -1.62,  -0.38,  (max)
10/09 00Z,   0.80,  -2.18,  99.90,  -1.76,  -0.38,
10/09 01Z,   0.80,  -3.29,  99.90,  -2.87,  -0.38,
10/09 02Z,   0.90,  -5.24,  99.90,  -4.72,  -0.38,
10/09 03Z,   0.90,  -7.63,  99.90,  -7.11,  -0.38,
10/09 04Z,   0.90,  -9.81,  99.90,  -9.29,  -0.38,
10/09 05Z,   0.90, -11.17,  99.90, -10.65,  -0.38,
10/09 06Z,   0.90, -11.39,  99.90, -10.86,  -0.38,  (min)
10/09 07Z,   1.00, -10.47,  99.90,  -9.85,  -0.38,
10/09 08Z,   1.00,  -8.70,  99.90,  -8.08,  -0.38,
10/09 09Z,   1.00,  -6.58,  99.90,  -5.95,  -0.38,
10/09 10Z,   1.00,  -4.72,  99.90,  -4.10,  -0.38,
10/09 11Z,   1.00,  -3.61,  99.90,  -2.98,  -0.38,
10/09 12Z,   1.00,  -3.44,  99.90,  -2.82,  -0.38,  (max)
10/09 13Z,   1.00,  -4.21,  99.90,  -3.59,  -0.38,
10/09 14Z,   1.10,  -5.79,  99.90,  -5.07,  -0.38,
10/09 15Z,   1.10,  -7.85,  99.90,  -7.13,  -0.38,
10/09 16Z,   1.20,  -9.78,  99.90,  -8.96,  -0.38,
10/09 17Z,   1.20, -10.95,  99.90, -10.13,  -0.38,
10/09 18Z,   1.20, -10.97,  99.90, -10.15,  -0.38,  (min)
10/09 19Z,   1.30,  -9.87,  99.90,  -8.95,  -0.38,
10/09 20Z,   1.30,  -7.93,  99.90,  -7.01,  -0.38,
10/09 21Z,   1.30,  -5.63,  99.90,  -4.71,  -0.38,
10/09 22Z,   1.30,  -3.57,  99.90,  -2.65,  -0.38,
10/09 23Z,   1.30,  -2.27,  99.90,  -1.35,  -0.38,
10/10 00Z,   1.30,  -2.00,  99.90,  -1.08,  -0.38,  (max)
10/10 01Z,   1.30,  -2.78,  99.90,  -1.86,  -0.38,
10/10 02Z,   1.30,  -4.50,  99.90,  -3.58,  -0.38,
10/10 03Z,   1.30,  -6.93,  99.90,  -6.00,  -0.38,
10/10 04Z,   1.20,  -9.53,  99.90,  -8.71,  -0.38,
10/10 05Z,   1.20, -11.60,  99.90, -10.78,  -0.38,
10/10 06Z,   1.20, -12.56,  99.90, -11.74,  -0.38,  (min)
10/10 07Z,   1.20, -12.21,  99.90, -11.39,  -0.38,
10/10 08Z,   1.10, -10.72,  99.90, -10.00,  -0.38,
10/10 09Z,   1.10,  -8.49,  99.90,  -7.77,  -0.38,
10/10 10Z,   1.10,  -6.10,  99.90,  -5.38,  -0.38,
10/10 11Z,   1.10,  -4.18,  99.90,  -3.45,  -0.38,
10/10 12Z,   1.10,  -3.13,  99.90,  -2.41,  -0.38,  (max)
10/10 13Z,   1.00,  -3.07,  99.90,  -2.45,  -0.38,
10/10 14Z,   1.00,  -3.93,  99.90,  -3.31,  -0.38,
10/10 15Z,   1.00,  -5.53,  99.90,  -4.91,  -0.38,
10/10 16Z,   1.00,  -7.50,  99.90,  -6.87,  -0.38,
10/10 17Z,   1.00,  -9.19,  99.90,  -8.57,  -0.38,
10/10 18Z,   1.00, -10.03,  99.90,  -9.41,  -0.38,  (min)
10/10 19Z,   1.00,  -9.74,  99.90,  -9.12,  -0.38,
10/10 20Z,   1.00,  -8.44,  99.90,  -7.82,  -0.38,
10/10 21Z,   1.00,  -6.49,  99.90,  -5.87,  -0.38,
10/10 22Z,   1.00,  -4.41,  99.90,  -3.79,  -0.38,
10/10 23Z,   1.00,  -2.79,  99.90,  -2.16,  -0.38,
10/11 00Z,   1.00,  -2.09,  99.90,  -1.47,  -0.38,