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 : 10/12/2026 00:22:46 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/10 06Z,   1.20, -12.56, -11.79,  99.90,  -0.43,
10/10 07Z,   1.20, -12.21, -11.28,  99.90,  -0.27,  (min)
10/10 08Z,   1.20, -10.72,  -9.72,  99.90,  -0.20,
10/10 09Z,   1.10,  -8.49,  -7.57,  99.90,  -0.18,
10/10 10Z,   1.10,  -6.10,  -5.16,  99.90,  -0.16,
10/10 11Z,   1.10,  -4.18,  -3.22,  99.90,  -0.14,
10/10 12Z,   1.20,  -3.13,  -2.23,  99.90,  -0.30,  (max)
10/10 13Z,   1.20,  -3.07,  -2.37,  99.90,  -0.50,
10/10 14Z,   1.20,  -3.93,  -3.32,  99.90,  -0.59,
10/10 15Z,   1.20,  -5.53,  -4.71,  99.90,  -0.38,
10/10 16Z,   1.20,  -7.50,  -6.70,  99.90,  -0.40,
10/10 17Z,   1.10,  -9.19,  -8.51,  99.90,  -0.42,
10/10 18Z,   1.20, -10.03,  -9.45,  99.90,  -0.62,  (min)
10/10 19Z,   1.20,  -9.74,  -9.20,  99.90,  -0.66,
10/10 20Z,   1.20,  -8.44,  -7.84,  99.90,  -0.60,
10/10 21Z,   1.20,  -6.49,  -5.93,  99.90,  -0.64,
10/10 22Z,   1.20,  -4.41,  -3.80,  99.90,  -0.59,
10/10 23Z,   1.20,  -2.79,  -2.03,  99.90,  -0.44,
10/11 00Z,   1.10,  -2.09,  -1.15,  99.90,  -0.16,  (max)
10/11 01Z,   1.10,  -2.48,  -1.65,  99.90,  -0.27,
10/11 02Z,   1.10,  -3.89,  -3.03,  99.90,  -0.24,
10/11 03Z,   1.10,  -6.12,  -5.18,  99.90,  -0.16,
10/11 04Z,   1.10,  -8.83,  -7.94,  99.90,  -0.21,
10/11 05Z,   1.10, -11.39, -10.56,  99.90,  -0.27,
10/11 06Z,   1.10, -13.09, -12.22,  99.90,  -0.23,
10/11 07Z,   1.10, -13.46, -12.62,  99.90,  -0.26,  (min)
10/11 08Z,   1.10, -12.48, -11.47,  99.90,  -0.09,
10/11 09Z,   1.10, -10.45,  -9.50,  99.90,  -0.15,
10/11 10Z,   1.10,  -7.89,  -6.97,  99.90,  -0.18,
10/11 11Z,   1.10,  -5.41,  -4.53,  99.90,  -0.22,
10/11 12Z,   1.10,  -3.59,  -2.72,  99.90,  -0.23,
10/11 13Z,   1.10,  -2.73,  -1.98,  99.90,  -0.35,  (max)
10/11 14Z,   1.10,  -2.83,  -2.20,  99.90,  -0.47,
10/11 15Z,   1.10,  -3.78,  -3.18,  99.90,  -0.50,
10/11 16Z,   1.10,  -5.35,  -4.54,  99.90,  -0.29,
10/11 17Z,   1.10,  -7.12,  -6.38,  99.90,  -0.36,
10/11 18Z,   1.20,  -8.49,  -7.88,  99.90,  -0.59,
10/11 19Z,   1.20,  -8.96,  -8.41,  99.90,  -0.65,  (min)
10/11 20Z,   1.20,  -8.40,  -7.85,  99.90,  -0.65,
10/11 21Z,   1.20,  -7.03,  -6.49,  99.90,  -0.66,
10/11 22Z,   1.20,  -5.23,  -4.71,  99.90,  -0.68,
10/11 23Z,   1.20,  -3.53,  -2.96,  99.90,  -0.63,
10/12 00Z,   1.20,  -2.47,  -1.75,  99.90,  -0.48,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/12 01Z,   1.20,  -2.41,  99.90,  -1.69,  -0.47,  (max)
10/12 02Z,   1.10,  -3.43,  99.90,  -2.79,  -0.46,
10/12 03Z,   1.20,  -5.35,  99.90,  -4.61,  -0.45,
10/12 04Z,   1.20,  -7.91,  99.90,  -7.16,  -0.44,
10/12 05Z,   1.20, -10.66,  99.90,  -9.89,  -0.43,
10/12 06Z,   1.20, -12.92,  99.90, -12.15,  -0.42,
10/12 07Z,   1.20, -14.06,  99.90, -13.27,  -0.41,  (min)
10/12 08Z,   1.20, -13.76,  99.90, -12.97,  -0.40,
10/12 09Z,   1.20, -12.19,  99.90, -11.38,  -0.39,
10/12 10Z,   1.20,  -9.77,  99.90,  -8.95,  -0.38,
10/12 11Z,   1.10,  -7.06,  99.90,  -6.33,  -0.37,
10/12 12Z,   1.10,  -4.66,  99.90,  -3.93,  -0.36,
10/12 13Z,   1.10,  -3.07,  99.90,  -2.33,  -0.36,
10/12 14Z,   1.10,  -2.45,  99.90,  -1.72,  -0.36,  (max)
10/12 15Z,   1.10,  -2.73,  99.90,  -1.99,  -0.36,
10/12 16Z,   1.10,  -3.73,  99.90,  -2.99,  -0.36,
10/12 17Z,   1.10,  -5.20,  99.90,  -4.46,  -0.36,
10/12 18Z,   1.10,  -6.71,  99.90,  -5.97,  -0.36,
10/12 19Z,   1.10,  -7.72,  99.90,  -6.99,  -0.36,
10/12 20Z,   1.10,  -7.87,  99.90,  -7.14,  -0.36,  (min)
10/12 21Z,   1.10,  -7.16,  99.90,  -6.42,  -0.36,
10/12 22Z,   1.10,  -5.85,  99.90,  -5.11,  -0.36,
10/12 23Z,   1.10,  -4.35,  99.90,  -3.61,  -0.36,
10/13 00Z,   1.10,  -3.13,  99.90,  -2.39,  -0.36,
10/13 01Z,   1.10,  -2.65,  99.90,  -1.92,  -0.36,  (max)
10/13 02Z,   1.10,  -3.19,  99.90,  -2.45,  -0.36,
10/13 03Z,   1.10,  -4.70,  99.90,  -3.96,  -0.36,
10/13 04Z,   1.10,  -6.95,  99.90,  -6.21,  -0.36,
10/13 05Z,   1.10,  -9.59,  99.90,  -8.86,  -0.36,
10/13 06Z,   1.10, -12.14,  99.90, -11.40,  -0.36,
10/13 07Z,   1.10, -13.93,  99.90, -13.19,  -0.36,
10/13 08Z,   1.10, -14.42,  99.90, -13.68,  -0.36,  (min)
10/13 09Z,   1.10, -13.50,  99.90, -12.76,  -0.36,
10/13 10Z,   1.10, -11.47,  99.90, -10.73,  -0.36,
10/13 11Z,   1.10,  -8.84,  99.90,  -8.11,  -0.36,
10/13 12Z,   1.00,  -6.17,  99.90,  -5.54,  -0.36,
10/13 13Z,   1.00,  -4.01,  99.90,  -3.37,  -0.36,
10/13 14Z,   1.00,  -2.71,  99.90,  -2.07,  -0.36,
10/13 15Z,   1.00,  -2.34,  99.90,  -1.71,  -0.36,  (max)
10/13 16Z,   1.00,  -2.76,  99.90,  -2.12,  -0.36,
10/13 17Z,   1.00,  -3.75,  99.90,  -3.11,  -0.36,
10/13 18Z,   1.00,  -5.06,  99.90,  -4.43,  -0.36,
10/13 19Z,   1.00,  -6.29,  99.90,  -5.65,  -0.36,
10/13 20Z,   1.00,  -6.98,  99.90,  -6.34,  -0.36,  (min)
10/13 21Z,   1.00,  -6.90,  99.90,  -6.27,  -0.36,
10/13 22Z,   1.00,  -6.16,  99.90,  -5.53,  -0.36,
10/13 23Z,   1.00,  -5.06,  99.90,  -4.42,  -0.36,
10/14 00Z,   1.00,  -3.94,  99.90,  -3.30,  -0.36,
10/14 01Z,   1.00,  -3.21,  99.90,  -2.58,  -0.36,  (max)
10/14 02Z,   1.00,  -3.26,  99.90,  -2.62,  -0.36,
10/14 03Z,   1.00,  -4.24,  99.90,  -3.60,  -0.36,
10/14 04Z,   1.00,  -6.04,  99.90,  -5.41,  -0.36,
10/14 05Z,   1.00,  -8.40,  99.90,  -7.76,  -0.36,
10/14 06Z,   1.00, -10.92,  99.90, -10.28,  -0.36,
10/14 07Z,   1.00, -13.10,  99.90, -12.46,  -0.36,
10/14 08Z,   1.00, -14.32,  99.90, -13.69,  -0.36,  (min)
10/14 09Z,   0.90, -14.21,  99.90, -13.67,  -0.36,
10/14 10Z,   0.90, -12.81,  99.90, -12.27,  -0.36,
10/14 11Z,   0.90, -10.53,  99.90, -10.00,  -0.36,
10/14 12Z,   0.90,  -7.90,  99.90,  -7.36,  -0.36,
10/14 13Z,   1.00,  -5.43,  99.90,  -4.79,  -0.36,
10/14 14Z,   1.00,  -3.56,  99.90,  -2.93,  -0.36,
10/14 15Z,   1.00,  -2.57,  99.90,  -1.93,  -0.36,
10/14 16Z,   1.00,  -2.42,  99.90,  -1.78,  -0.36,  (max)
10/14 17Z,   1.00,  -2.90,  99.90,  -2.27,  -0.36,
10/14 18Z,   1.00,  -3.82,  99.90,  -3.19,  -0.36,
10/14 19Z,   1.00,  -4.94,  99.90,  -4.31,  -0.36,
10/14 20Z,   1.00,  -5.90,  99.90,  -5.26,  -0.36,
10/14 21Z,   1.00,  -6.34,  99.90,  -5.70,  -0.36,  (min)
10/14 22Z,   1.00,  -6.16,  99.90,  -5.52,  -0.36,
10/14 23Z,   1.00,  -5.52,  99.90,  -4.89,  -0.36,
10/15 00Z,   0.90,  -4.70,  99.90,  -4.17,  -0.36,
10/15 01Z,   0.90,  -3.98,  99.90,  -3.44,  -0.36,
10/15 02Z,   0.90,  -3.68,  99.90,  -3.14,  -0.36,  (max)
10/15 03Z,   0.90,  -4.10,  99.90,  -3.56,  -0.36,
10/15 04Z,   0.90,  -5.33,  99.90,  -4.80,  -0.36,
10/15 05Z,   0.90,  -7.23,  99.90,  -6.70,  -0.36,
10/15 06Z,   0.90,  -9.50,  99.90,  -8.96,  -0.36,
10/15 07Z,   0.80, -11.75,  99.90, -11.31,  -0.36,
10/15 08Z,   0.80, -13.48,  99.90, -13.04,  -0.36,
10/15 09Z,   0.80, -14.18,  99.90, -13.74,  -0.36,  (min)
10/15 10Z,   0.80, -13.60,  99.90, -13.16,  -0.36,
10/15 11Z,   0.80, -11.92,  99.90, -11.49,  -0.36,
10/15 12Z,   0.80,  -9.61,  99.90,  -9.18,  -0.36,
10/15 13Z,   0.80,  -7.14,  99.90,  -6.70,  -0.36,
10/15 14Z,   0.80,  -4.95,  99.90,  -4.51,  -0.36,
10/15 15Z,   0.80,  -3.40,  99.90,  -2.96,  -0.36,
10/15 16Z,   0.80,  -2.65,  99.90,  -2.22,  -0.36,
10/15 17Z,   0.80,  -2.63,  99.90,  -2.19,  -0.36,  (max)
10/15 18Z,   0.80,  -3.11,  99.90,  -2.67,  -0.36,