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 : 10/15/2026 23:24:49 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/14 06Z,   0.80,  -8.84,  -8.41,  99.90,  -0.37,
10/14 07Z,   0.80, -11.02, -10.61,  99.90,  -0.39,
10/14 08Z,   0.80, -12.24, -11.76,  99.90,  -0.32,  (min)
10/14 09Z,   0.80, -12.13, -11.53,  99.90,  -0.20,
10/14 10Z,   0.80, -10.73, -10.17,  99.90,  -0.24,
10/14 11Z,   0.80,  -8.45,  -8.08,  99.90,  -0.43,
10/14 12Z,   0.80,  -5.82,  -5.48,  99.90,  -0.46,
10/14 13Z,   0.80,  -3.35,  -3.07,  99.90,  -0.52,
10/14 14Z,   0.80,  -1.48,  -1.35,  99.90,  -0.67,
10/14 15Z,   0.80,  -0.49,  -0.43,  99.90,  -0.74,
10/14 16Z,   0.80,  -0.34,  -0.27,  99.90,  -0.73,  (max)
10/14 17Z,   0.80,  -0.82,  -0.74,  99.90,  -0.72,
10/14 18Z,   0.80,  -1.74,  -1.56,  99.90,  -0.62,
10/14 19Z,   0.80,  -2.86,  -2.79,  99.90,  -0.73,
10/14 20Z,   0.80,  -3.82,  -3.89,  99.90,  -0.87,
10/14 21Z,   0.80,  -4.26,  -4.41,  99.90,  -0.95,  (min)
10/14 22Z,   0.80,  -4.08,  -4.23,  99.90,  -0.95,
10/14 23Z,   0.80,  -3.44,  -3.55,  99.90,  -0.91,
10/15 00Z,   0.70,  -2.62,  -2.66,  99.90,  -0.74,
10/15 01Z,   0.70,  -1.90,  -1.83,  99.90,  -0.63,
10/15 02Z,   0.70,  -1.60,  -1.38,  99.90,  -0.48,  (max)
10/15 03Z,   0.70,  -2.02,  -1.74,  99.90,  -0.42,
10/15 04Z,   0.70,  -3.25,  -2.90,  99.90,  -0.35,
10/15 05Z,   0.70,  -5.15,  -4.77,  99.90,  -0.32,
10/15 06Z,   0.70,  -7.42,  -7.14,  99.90,  -0.42,
10/15 07Z,   0.60,  -9.67,  -9.55,  99.90,  -0.48,
10/15 08Z,   0.60, -11.40, -11.25,  99.90,  -0.45,
10/15 09Z,   0.60, -12.10, -11.78,  99.90,  -0.28,  (min)
10/15 10Z,   0.60, -11.52, -11.17,  99.90,  -0.25,
10/15 11Z,   0.60,  -9.84,  -9.61,  99.90,  -0.37,
10/15 12Z,   0.60,  -7.53,  -7.40,  99.90,  -0.47,
10/15 13Z,   0.60,  -5.06,  -4.92,  99.90,  -0.46,
10/15 14Z,   0.60,  -2.87,  -2.75,  99.90,  -0.48,
10/15 15Z,   0.60,  -1.32,  -1.31,  99.90,  -0.59,
10/15 16Z,   0.60,  -0.57,  -0.60,  99.90,  -0.63,  (max)
10/15 17Z,   0.60,  -0.55,  -0.61,  99.90,  -0.66,
10/15 18Z,   0.60,  -1.03,  -1.02,  99.90,  -0.59,
10/15 19Z,   0.60,  -1.83,  -1.79,  99.90,  -0.56,
10/15 20Z,   0.60,  -2.75,  -2.82,  99.90,  -0.67,
10/15 21Z,   0.50,  -3.49,  -3.63,  99.90,  -0.64,
10/15 22Z,   0.50,  -3.79,  -3.94,  99.90,  -0.65,  (min)
10/15 23Z,   0.50,  -3.63,  -3.73,  99.90,  -0.60,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/16 00Z,   0.50,  -3.19,  99.90,  -3.28,  -0.59,
10/16 01Z,   0.50,  -2.67,  99.90,  -2.75,  -0.58,
10/16 02Z,   0.50,  -2.27,  99.90,  -2.34,  -0.57,
10/16 03Z,   0.50,  -2.27,  99.90,  -2.32,  -0.56,  (max)
10/16 04Z,   0.60,  -2.89,  99.90,  -2.84,  -0.55,
10/16 05Z,   0.60,  -4.20,  99.90,  -4.14,  -0.54,
10/16 06Z,   0.60,  -6.02,  99.90,  -5.94,  -0.53,
10/16 07Z,   0.60,  -8.06,  99.90,  -7.98,  -0.52,
10/16 08Z,   0.60,  -9.97,  99.90,  -9.88,  -0.50,
10/16 09Z,   0.60, -11.29,  99.90, -11.18,  -0.49,
10/16 10Z,   0.60, -11.58,  99.90, -11.46,  -0.48,  (min)
10/16 11Z,   0.60, -10.73,  99.90, -10.60,  -0.47,
10/16 12Z,   0.60,  -9.00,  99.90,  -8.87,  -0.47,
10/16 13Z,   0.60,  -6.82,  99.90,  -6.69,  -0.47,
10/16 14Z,   0.70,  -4.59,  99.90,  -4.36,  -0.47,
10/16 15Z,   0.70,  -2.69,  99.90,  -2.46,  -0.47,
10/16 16Z,   0.70,  -1.39,  99.90,  -1.16,  -0.47,
10/16 17Z,   0.70,  -0.80,  99.90,  -0.57,  -0.47,  (max)
10/16 18Z,   0.70,  -0.81,  99.90,  -0.58,  -0.47,
10/16 19Z,   0.70,  -1.22,  99.90,  -0.99,  -0.47,
10/16 20Z,   0.70,  -1.89,  99.90,  -1.66,  -0.47,
10/16 21Z,   0.70,  -2.65,  99.90,  -2.42,  -0.47,
10/16 22Z,   0.70,  -3.26,  99.90,  -3.03,  -0.47,
10/16 23Z,   0.70,  -3.54,  99.90,  -3.31,  -0.47,  (min)
10/17 00Z,   0.80,  -3.50,  99.90,  -3.17,  -0.47,
10/17 01Z,   0.80,  -3.28,  99.90,  -2.96,  -0.47,
10/17 02Z,   0.80,  -3.02,  99.90,  -2.69,  -0.47,
10/17 03Z,   0.80,  -2.84,  99.90,  -2.51,  -0.47,  (max)
10/17 04Z,   0.80,  -2.97,  99.90,  -2.64,  -0.47,
10/17 05Z,   0.90,  -3.63,  99.90,  -3.20,  -0.47,
10/17 06Z,   0.90,  -4.85,  99.90,  -4.43,  -0.47,
10/17 07Z,   0.90,  -6.48,  99.90,  -6.05,  -0.47,
10/17 08Z,   0.90,  -8.25,  99.90,  -7.82,  -0.47,
10/17 09Z,   0.90,  -9.85,  99.90,  -9.42,  -0.47,
10/17 10Z,   0.90, -10.85,  99.90, -10.42,  -0.47,
10/17 11Z,   0.90, -10.91,  99.90, -10.48,  -0.47,  (min)
10/17 12Z,   0.90,  -9.98,  99.90,  -9.55,  -0.47,
10/17 13Z,   0.90,  -8.35,  99.90,  -7.92,  -0.47,
10/17 14Z,   0.90,  -6.39,  99.90,  -5.96,  -0.47,
10/17 15Z,   0.90,  -4.41,  99.90,  -3.98,  -0.47,
10/17 16Z,   0.90,  -2.72,  99.90,  -2.29,  -0.47,
10/17 17Z,   0.90,  -1.58,  99.90,  -1.15,  -0.47,
10/17 18Z,   0.90,  -1.04,  99.90,  -0.62,  -0.47,
10/17 19Z,   0.90,  -1.01,  99.90,  -0.59,  -0.47,  (max)
10/17 20Z,   0.90,  -1.33,  99.90,  -0.91,  -0.47,
10/17 21Z,   0.90,  -1.91,  99.90,  -1.48,  -0.47,
10/17 22Z,   0.90,  -2.60,  99.90,  -2.18,  -0.47,
10/17 23Z,   0.90,  -3.20,  99.90,  -2.78,  -0.47,
10/18 00Z,   0.90,  -3.56,  99.90,  -3.13,  -0.47,
10/18 01Z,   0.90,  -3.70,  99.90,  -3.27,  -0.47,  (min)
10/18 02Z,   0.90,  -3.69,  99.90,  -3.26,  -0.47,
10/18 03Z,   0.90,  -3.57,  99.90,  -3.15,  -0.47,
10/18 04Z,   0.90,  -3.46,  99.90,  -3.03,  -0.47,  (max)
10/18 05Z,   0.90,  -3.57,  99.90,  -3.14,  -0.47,
10/18 06Z,   0.90,  -4.12,  99.90,  -3.70,  -0.47,
10/18 07Z,   0.80,  -5.17,  99.90,  -4.84,  -0.47,
10/18 08Z,   0.80,  -6.56,  99.90,  -6.23,  -0.47,
10/18 09Z,   0.80,  -8.08,  99.90,  -7.75,  -0.47,
10/18 10Z,   0.80,  -9.45,  99.90,  -9.12,  -0.47,
10/18 11Z,   0.80, -10.28,  99.90,  -9.95,  -0.47,
10/18 12Z,   0.70, -10.27,  99.90, -10.04,  -0.47,  (min)
10/18 13Z,   0.70,  -9.41,  99.90,  -9.18,  -0.47,
10/18 14Z,   0.70,  -7.96,  99.90,  -7.73,  -0.47,
10/18 15Z,   0.70,  -6.20,  99.90,  -5.97,  -0.47,
10/18 16Z,   0.70,  -4.39,  99.90,  -4.16,  -0.47,
10/18 17Z,   0.70,  -2.81,  99.90,  -2.58,  -0.47,
10/18 18Z,   0.70,  -1.71,  99.90,  -1.48,  -0.47,
10/18 19Z,   0.70,  -1.16,  99.90,  -0.93,  -0.47,
10/18 20Z,   0.70,  -1.08,  99.90,  -0.85,  -0.47,  (max)
10/18 21Z,   0.70,  -1.36,  99.90,  -1.13,  -0.47,
10/18 22Z,   0.70,  -1.94,  99.90,  -1.72,  -0.47,
10/18 23Z,   0.70,  -2.70,  99.90,  -2.47,  -0.47,
10/19 00Z,   0.70,  -3.41,  99.90,  -3.19,  -0.47,
10/19 01Z,   0.70,  -3.93,  99.90,  -3.70,  -0.47,
10/19 02Z,   0.80,  -4.22,  99.90,  -3.89,  -0.47,
10/19 03Z,   0.80,  -4.31,  99.90,  -3.98,  -0.47,  (min)
10/19 04Z,   0.80,  -4.20,  99.90,  -3.87,  -0.47,
10/19 05Z,   0.80,  -3.99,  99.90,  -3.66,  -0.47,
10/19 06Z,   0.90,  -3.95,  99.90,  -3.52,  -0.47,  (max)
10/19 07Z,   0.90,  -4.32,  99.90,  -3.89,  -0.47,
10/19 08Z,   0.90,  -5.15,  99.90,  -4.72,  -0.47,
10/19 09Z,   0.90,  -6.33,  99.90,  -5.90,  -0.47,
10/19 10Z,   0.90,  -7.69,  99.90,  -7.26,  -0.47,
10/19 11Z,   0.90,  -8.95,  99.90,  -8.52,  -0.47,
10/19 12Z,   1.00,  -9.74,  99.90,  -9.21,  -0.47,
10/19 13Z,   1.00,  -9.78,  99.90,  -9.25,  -0.47,  (min)
10/19 14Z,   1.00,  -9.04,  99.90,  -8.51,  -0.47,
10/19 15Z,   1.00,  -7.73,  99.90,  -7.20,  -0.47,
10/19 16Z,   1.00,  -6.08,  99.90,  -5.55,  -0.47,
10/19 17Z,   1.00,  -4.32,  99.90,  -3.79,  -0.47,
10/19 18Z,   1.00,  -2.75,  99.90,  -2.22,  -0.47,