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
#Seward, AK : 07/19/2025 12:22:28 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/17 12Z,   0.60,  -4.81,  -5.51,  99.90,  -1.30,
07/17 13Z,   0.60,  -3.39,  -4.13,  99.90,  -1.34,
07/17 14Z,   0.60,  -2.62,  -3.36,  99.90,  -1.34,  (max)
07/17 15Z,   0.50,  -2.71,  -3.42,  99.90,  -1.21,
07/17 16Z,   0.50,  -3.63,  -4.38,  99.90,  -1.25,
07/17 17Z,   0.50,  -5.14,  -5.83,  99.90,  -1.19,
07/17 18Z,   0.50,  -6.89,  -7.53,  99.90,  -1.14,
07/17 19Z,   0.50,  -8.45,  -9.16,  99.90,  -1.21,
07/17 20Z,   0.50,  -9.38, -10.08,  99.90,  -1.20,  (min)
07/17 21Z,   0.50,  -9.32,  -9.87,  99.90,  -1.05,
07/17 22Z,   0.60,  -8.26,  -8.75,  99.90,  -1.09,
07/17 23Z,   0.60,  -6.47,  -7.03,  99.90,  -1.16,
07/18 00Z,   0.60,  -4.36,  -4.99,  99.90,  -1.23,
07/18 01Z,   0.60,  -2.37,  -2.83,  99.90,  -1.06,
07/18 02Z,   0.60,  -0.93,  -1.51,  99.90,  -1.18,
07/18 03Z,   0.60,  -0.38,  -1.16,  99.90,  -1.38,  (max)
07/18 04Z,   0.60,  -0.83,  -1.53,  99.90,  -1.30,
07/18 05Z,   0.60,  -2.16,  -2.75,  99.90,  -1.19,
07/18 06Z,   0.60,  -4.06,  -4.59,  99.90,  -1.13,
07/18 07Z,   0.60,  -6.17,  -6.74,  99.90,  -1.17,
07/18 08Z,   0.60,  -7.99,  -8.65,  99.90,  -1.26,
07/18 09Z,   0.70,  -9.08,  -9.51,  99.90,  -1.13,
07/18 10Z,   0.60,  -9.22,  -9.80,  99.90,  -1.18,  (min)
07/18 11Z,   0.60,  -8.51,  -9.05,  99.90,  -1.14,
07/18 12Z,   0.60,  -7.23,  -7.85,  99.90,  -1.22,
07/18 13Z,   0.60,  -5.74,  -6.36,  99.90,  -1.22,
07/18 14Z,   0.60,  -4.41,  -5.02,  99.90,  -1.21,
07/18 15Z,   0.60,  -3.60,  -4.21,  99.90,  -1.21,
07/18 16Z,   0.60,  -3.50,  -4.09,  99.90,  -1.19,  (max)
07/18 17Z,   0.60,  -4.10,  -4.72,  99.90,  -1.22,
07/18 18Z,   0.60,  -5.20,  -5.72,  99.90,  -1.12,
07/18 19Z,   0.60,  -6.51,  -7.06,  99.90,  -1.15,
07/18 20Z,   0.70,  -7.68,  -8.45,  99.90,  -1.47,
07/18 21Z,   0.70,  -8.31,  -8.88,  99.90,  -1.27,  (min)
07/18 22Z,   0.60,  -8.10,  -8.49,  99.90,  -0.99,
07/18 23Z,   0.60,  -7.07,  -7.61,  99.90,  -1.14,
07/19 00Z,   0.70,  -5.45,  -6.02,  99.90,  -1.27,
07/19 01Z,   0.70,  -3.57,  -4.25,  99.90,  -1.38,
07/19 02Z,   0.70,  -1.82,  -2.45,  99.90,  -1.33,
07/19 03Z,   0.70,  -0.59,  -1.17,  99.90,  -1.28,
07/19 04Z,   0.60,  -0.19,  -0.92,  99.90,  -1.33,  (max)
07/19 05Z,   0.60,  -0.73,  -1.52,  99.90,  -1.39,
07/19 06Z,   0.60,  -2.09,  -2.77,  99.90,  -1.28,
07/19 07Z,   0.60,  -4.02,  -4.65,  99.90,  -1.23,
07/19 08Z,   0.70,  -6.17,  -6.84,  99.90,  -1.37,
07/19 09Z,   0.70,  -8.09,  -8.69,  99.90,  -1.30,
07/19 10Z,   0.70,  -9.34,  -9.85,  99.90,  -1.21,
07/19 11Z,   0.70,  -9.71, -10.30,  99.90,  -1.29,  (min)
07/19 12Z,   0.70,  -9.25,  -9.90,  99.90,  -1.35,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/19 13Z,   0.70,  -8.17,  99.90,  -8.80,  -1.32,
07/19 14Z,   0.70,  -6.77,  99.90,  -7.37,  -1.30,
07/19 15Z,   0.70,  -5.38,  99.90,  -5.95,  -1.27,
07/19 16Z,   0.70,  -4.37,  99.90,  -4.91,  -1.24,
07/19 17Z,   0.70,  -3.96,  99.90,  -4.47,  -1.21,  (max)
07/19 18Z,   0.70,  -4.17,  99.90,  -4.65,  -1.18,
07/19 19Z,   0.70,  -4.86,  99.90,  -5.32,  -1.15,
07/19 20Z,   0.70,  -5.84,  99.90,  -6.27,  -1.13,
07/19 21Z,   0.70,  -6.78,  99.90,  -7.18,  -1.10,
07/19 22Z,   0.70,  -7.30,  99.90,  -7.67,  -1.07,  (min)
07/19 23Z,   0.70,  -7.14,  99.90,  -7.48,  -1.04,
07/20 00Z,   0.70,  -6.27,  99.90,  -6.59,  -1.01,
07/20 01Z,   0.70,  -4.86,  99.90,  -5.18,  -1.01,
07/20 02Z,   0.70,  -3.18,  99.90,  -3.49,  -1.01,
07/20 03Z,   0.60,  -1.55,  99.90,  -1.97,  -1.01,
07/20 04Z,   0.60,  -0.38,  99.90,  -0.80,  -1.01,
07/20 05Z,   0.60,   0.01,  99.90,  -0.41,  -1.01,  (max)
07/20 06Z,   0.60,  -0.51,  99.90,  -0.92,  -1.01,
07/20 07Z,   0.60,  -1.86,  99.90,  -2.27,  -1.01,
07/20 08Z,   0.60,  -3.82,  99.90,  -4.24,  -1.01,
07/20 09Z,   0.70,  -6.09,  99.90,  -6.40,  -1.01,
07/20 10Z,   0.60,  -8.20,  99.90,  -8.61,  -1.01,
07/20 11Z,   0.60,  -9.70,  99.90, -10.12,  -1.01,
07/20 12Z,   0.60, -10.35,  99.90, -10.76,  -1.01,  (min)
07/20 13Z,   0.60, -10.12,  99.90, -10.53,  -1.01,
07/20 14Z,   0.50,  -9.15,  99.90,  -9.66,  -1.01,
07/20 15Z,   0.60,  -7.70,  99.90,  -8.11,  -1.01,
07/20 16Z,   0.60,  -6.11,  99.90,  -6.53,  -1.01,
07/20 17Z,   0.60,  -4.80,  99.90,  -5.21,  -1.01,
07/20 18Z,   0.60,  -4.02,  99.90,  -4.43,  -1.01,
07/20 19Z,   0.60,  -3.86,  99.90,  -4.28,  -1.01,  (max)
07/20 20Z,   0.60,  -4.27,  99.90,  -4.68,  -1.01,
07/20 21Z,   0.60,  -5.07,  99.90,  -5.48,  -1.01,
07/20 22Z,   0.60,  -5.98,  99.90,  -6.39,  -1.01,
07/20 23Z,   0.60,  -6.59,  99.90,  -7.00,  -1.01,
07/21 00Z,   0.60,  -6.61,  99.90,  -7.03,  -1.01,  (min)
07/21 01Z,   0.60,  -5.96,  99.90,  -6.37,  -1.01,
07/21 02Z,   0.60,  -4.71,  99.90,  -5.13,  -1.01,
07/21 03Z,   0.50,  -3.10,  99.90,  -3.61,  -1.01,
07/21 04Z,   0.50,  -1.46,  99.90,  -1.97,  -1.01,
07/21 05Z,   0.50,  -0.21,  99.90,  -0.72,  -1.01,
07/21 06Z,   0.50,   0.28,  99.90,  -0.24,  -1.01,  (max)
07/21 07Z,   0.50,  -0.17,  99.90,  -0.68,  -1.01,
07/21 08Z,   0.60,  -1.51,  99.90,  -1.92,  -1.01,
07/21 09Z,   0.60,  -3.57,  99.90,  -3.99,  -1.01,
07/21 10Z,   0.60,  -6.04,  99.90,  -6.45,  -1.01,
07/21 11Z,   0.60,  -8.42,  99.90,  -8.83,  -1.01,
07/21 12Z,   0.60, -10.21,  99.90, -10.63,  -1.01,
07/21 13Z,   0.60, -11.10,  99.90, -11.51,  -1.01,  (min)
07/21 14Z,   0.60, -11.00,  99.90, -11.41,  -1.01,
07/21 15Z,   0.60, -10.00,  99.90, -10.41,  -1.01,
07/21 16Z,   0.60,  -8.35,  99.90,  -8.76,  -1.01,
07/21 17Z,   0.60,  -6.46,  99.90,  -6.88,  -1.01,
07/21 18Z,   0.60,  -4.81,  99.90,  -5.22,  -1.01,
07/21 19Z,   0.60,  -3.70,  99.90,  -4.12,  -1.01,
07/21 20Z,   0.60,  -3.30,  99.90,  -3.71,  -1.01,  (max)
07/21 21Z,   0.60,  -3.58,  99.90,  -3.99,  -1.01,
07/21 22Z,   0.60,  -4.42,  99.90,  -4.83,  -1.01,
07/21 23Z,   0.60,  -5.47,  99.90,  -5.89,  -1.01,
07/22 00Z,   0.60,  -6.31,  99.90,  -6.72,  -1.01,
07/22 01Z,   0.60,  -6.56,  99.90,  -6.97,  -1.01,  (min)
07/22 02Z,   0.60,  -6.06,  99.90,  -6.48,  -1.01,
07/22 03Z,   0.60,  -4.87,  99.90,  -5.28,  -1.01,
07/22 04Z,   0.70,  -3.19,  99.90,  -3.50,  -1.01,
07/22 05Z,   0.70,  -1.39,  99.90,  -1.70,  -1.01,
07/22 06Z,   0.70,   0.02,  99.90,  -0.29,  -1.01,
07/22 07Z,   0.80,   0.63,  99.90,   0.42,  -1.01,  (max)
07/22 08Z,   0.90,   0.24,  99.90,   0.12,  -1.01,
07/22 09Z,   0.80,  -1.17,  99.90,  -1.38,  -1.01,
07/22 10Z,   0.70,  -3.42,  99.90,  -3.73,  -1.01,
07/22 11Z,   0.70,  -6.16,  99.90,  -6.48,  -1.01,
07/22 12Z,   0.70,  -8.83,  99.90,  -9.15,  -1.01,
07/22 13Z,   0.70, -10.87,  99.90, -11.18,  -1.01,
07/22 14Z,   0.70, -11.88,  99.90, -12.19,  -1.01,  (min)
07/22 15Z,   0.70, -11.75,  99.90, -12.06,  -1.01,
07/22 16Z,   0.70, -10.55,  99.90, -10.86,  -1.01,
07/22 17Z,   0.70,  -8.59,  99.90,  -8.90,  -1.01,
07/22 18Z,   0.80,  -6.36,  99.90,  -6.58,  -1.01,
07/22 19Z,   0.90,  -4.41,  99.90,  -4.52,  -1.01,
07/22 20Z,   0.80,  -3.11,  99.90,  -3.32,  -1.01,
07/22 21Z,   0.80,  -2.63,  99.90,  -2.84,  -1.01,  (max)
07/22 22Z,   0.90,  -3.00,  99.90,  -3.11,  -1.01,
07/22 23Z,   0.90,  -4.05,  99.90,  -4.16,  -1.01,
07/23 00Z,   0.90,  -5.38,  99.90,  -5.49,  -1.01,