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 : 06/30/2025 20:21:42 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
06/29 00Z,   0.20,   4.38,   4.38,  99.90,  -0.20,
06/29 01Z,   0.20,   7.33,   7.43,  99.90,  -0.10,
06/29 02Z,   0.20,   9.79,   9.81,  99.90,  -0.18,
06/29 03Z,   0.20,  11.39,  11.33,  99.90,  -0.26,
06/29 04Z,   0.20,  12.05,  11.92,  99.90,  -0.33,  (max)
06/29 05Z,   0.20,  11.84,  11.65,  99.90,  -0.39,
06/29 06Z,   0.20,  10.87,  10.81,  99.90,  -0.26,
06/29 07Z,   0.20,   9.38,   9.53,  99.90,  -0.05,
06/29 08Z,   0.20,   7.80,   7.93,  99.90,  -0.07,
06/29 09Z,   0.20,   6.65,   6.76,  99.90,  -0.09,
06/29 10Z,   0.20,   6.24,   6.36,  99.90,  -0.08,  (min)
06/29 11Z,   0.10,   6.52,   6.68,  99.90,   0.06,
06/29 12Z,   0.10,   7.30,   7.43,  99.90,   0.03,
06/29 13Z,   0.10,   8.26,   8.30,  99.90,  -0.06,
06/29 14Z,   0.00,   8.99,   9.09,  99.90,   0.10,
06/29 15Z,   0.00,   9.07,   9.28,  99.90,   0.21,  (max)
06/29 16Z,   0.00,   8.30,   8.56,  99.90,   0.26,
06/29 17Z,   0.00,   6.72,   7.03,  99.90,   0.31,
06/29 18Z,   0.10,   4.57,   4.78,  99.90,   0.11,
06/29 19Z,   0.10,   2.18,   2.24,  99.90,  -0.04,
06/29 20Z,   0.10,   0.12,   0.02,  99.90,  -0.20,
06/29 21Z,   0.10,  -1.02,  -1.20,  99.90,  -0.28,  (min)
06/29 22Z,   0.10,  -0.83,  -0.95,  99.90,  -0.22,
06/29 23Z,   0.10,   0.61,   0.51,  99.90,  -0.20,
06/30 00Z,   0.10,   2.93,   2.83,  99.90,  -0.20,
06/30 01Z,   0.10,   5.66,   5.79,  99.90,   0.03,
06/30 02Z,   0.10,   8.30,   8.53,  99.90,   0.13,
06/30 03Z,   0.10,  10.38,  10.55,  99.90,   0.07,
06/30 04Z,   0.10,  11.60,  11.74,  99.90,   0.04,
06/30 05Z,   0.10,  11.90,  11.94,  99.90,  -0.06,  (max)
06/30 06Z,   0.10,  11.36,  11.38,  99.90,  -0.08,
06/30 07Z,   0.10,  10.14,  10.29,  99.90,   0.05,
06/30 08Z,   0.10,   8.49,   8.76,  99.90,   0.17,
06/30 09Z,   0.10,   6.89,   7.08,  99.90,   0.09,
06/30 10Z,   0.10,   5.80,   5.93,  99.90,   0.03,
06/30 11Z,   0.10,   5.45,   5.57,  99.90,   0.02,  (min)
06/30 12Z,   0.10,   5.76,   5.90,  99.90,   0.04,
06/30 13Z,   0.10,   6.53,   6.61,  99.90,  -0.02,
06/30 14Z,   0.10,   7.47,   7.51,  99.90,  -0.06,
06/30 15Z,   0.10,   8.18,   8.32,  99.90,   0.04,
06/30 16Z,   0.10,   8.30,   8.53,  99.90,   0.13,  (max)
06/30 17Z,   0.10,   7.64,   7.90,  99.90,   0.16,
06/30 18Z,   0.10,   6.31,   6.58,  99.90,   0.17,
06/30 19Z,   0.10,   4.51,   4.76,  99.90,   0.15,
06/30 20Z,   0.10,   2.57,   2.71,  99.90,   0.04,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
06/30 21Z,   0.10,   1.01,  99.90,   1.13,   0.03,
06/30 22Z,   0.10,   0.33,  99.90,   0.44,   0.02,  (min)
06/30 23Z,   0.10,   0.80,  99.90,   0.91,   0.01,
07/01 00Z,   0.20,   2.30,  99.90,   2.49,  -0.00,
07/01 01Z,   0.20,   4.47,  99.90,   4.65,  -0.01,
07/01 02Z,   0.20,   6.91,  99.90,   7.08,  -0.02,
07/01 03Z,   0.20,   9.17,  99.90,   9.34,  -0.03,
07/01 04Z,   0.20,  10.84,  99.90,  11.00,  -0.04,
07/01 05Z,   0.20,  11.64,  99.90,  11.79,  -0.05,
07/01 06Z,   0.30,  11.56,  99.90,  11.80,  -0.06,  (max)
07/01 07Z,   0.30,  10.71,  99.90,  10.94,  -0.07,
07/01 08Z,   0.30,   9.25,  99.90,   9.47,  -0.08,
07/01 09Z,   0.30,   7.49,  99.90,   7.71,  -0.08,
07/01 10Z,   0.30,   5.89,  99.90,   6.11,  -0.08,
07/01 11Z,   0.30,   4.86,  99.90,   5.08,  -0.08,
07/01 12Z,   0.30,   4.55,  99.90,   4.77,  -0.08,  (min)
07/01 13Z,   0.30,   4.88,  99.90,   5.10,  -0.08,
07/01 14Z,   0.30,   5.67,  99.90,   5.89,  -0.08,
07/01 15Z,   0.20,   6.63,  99.90,   6.75,  -0.08,
07/01 16Z,   0.20,   7.40,  99.90,   7.52,  -0.08,
07/01 17Z,   0.20,   7.62,  99.90,   7.74,  -0.08,  (max)
07/01 18Z,   0.20,   7.18,  99.90,   7.30,  -0.08,
07/01 19Z,   0.20,   6.17,  99.90,   6.29,  -0.08,
07/01 20Z,   0.20,   4.81,  99.90,   4.93,  -0.08,
07/01 21Z,   0.20,   3.37,  99.90,   3.49,  -0.08,
07/01 22Z,   0.20,   2.29,  99.90,   2.41,  -0.08,
07/01 23Z,   0.30,   1.98,  99.90,   2.20,  -0.08,  (min)
07/02 00Z,   0.30,   2.61,  99.90,   2.83,  -0.08,
07/02 01Z,   0.30,   4.03,  99.90,   4.25,  -0.08,
07/02 02Z,   0.30,   5.94,  99.90,   6.16,  -0.08,
07/02 03Z,   0.30,   8.01,  99.90,   8.23,  -0.08,
07/02 04Z,   0.40,   9.86,  99.90,  10.18,  -0.08,
07/02 05Z,   0.40,  11.09,  99.90,  11.41,  -0.08,
07/02 06Z,   0.40,  11.47,  99.90,  11.79,  -0.08,  (max)
07/02 07Z,   0.40,  11.02,  99.90,  11.34,  -0.08,
07/02 08Z,   0.50,   9.88,  99.90,  10.30,  -0.08,
07/02 09Z,   0.50,   8.22,  99.90,   8.64,  -0.08,
07/02 10Z,   0.50,   6.38,  99.90,   6.80,  -0.08,
07/02 11Z,   0.40,   4.79,  99.90,   5.11,  -0.08,
07/02 12Z,   0.40,   3.82,  99.90,   4.14,  -0.08,
07/02 13Z,   0.40,   3.58,  99.90,   3.90,  -0.08,  (min)
07/02 14Z,   0.40,   3.96,  99.90,   4.28,  -0.08,
07/02 15Z,   0.40,   4.81,  99.90,   5.14,  -0.08,
07/02 16Z,   0.40,   5.87,  99.90,   6.19,  -0.08,
07/02 17Z,   0.40,   6.76,  99.90,   7.08,  -0.08,
07/02 18Z,   0.40,   7.18,  99.90,   7.50,  -0.08,  (max)
07/02 19Z,   0.40,   7.03,  99.90,   7.35,  -0.08,
07/02 20Z,   0.40,   6.42,  99.90,   6.74,  -0.08,
07/02 21Z,   0.40,   5.51,  99.90,   5.83,  -0.08,
07/02 22Z,   0.40,   4.54,  99.90,   4.86,  -0.08,
07/02 23Z,   0.40,   3.85,  99.90,   4.17,  -0.08,
07/03 00Z,   0.40,   3.77,  99.90,   4.09,  -0.08,  (min)
07/03 01Z,   0.40,   4.41,  99.90,   4.73,  -0.08,
07/03 02Z,   0.40,   5.62,  99.90,   5.94,  -0.08,
07/03 03Z,   0.40,   7.19,  99.90,   7.51,  -0.08,
07/03 04Z,   0.50,   8.86,  99.90,   9.28,  -0.08,
07/03 05Z,   0.50,  10.28,  99.90,  10.70,  -0.08,
07/03 06Z,   0.50,  11.08,  99.90,  11.50,  -0.08,  (max)
07/03 07Z,   0.50,  11.07,  99.90,  11.49,  -0.08,
07/03 08Z,   0.50,  10.30,  99.90,  10.72,  -0.08,
07/03 09Z,   0.50,   8.91,  99.90,   9.33,  -0.08,
07/03 10Z,   0.50,   7.09,  99.90,   7.51,  -0.08,
07/03 11Z,   0.50,   5.18,  99.90,   5.60,  -0.08,
07/03 12Z,   0.40,   3.63,  99.90,   3.95,  -0.08,
07/03 13Z,   0.40,   2.74,  99.90,   3.06,  -0.08,
07/03 14Z,   0.40,   2.59,  99.90,   2.91,  -0.08,  (min)
07/03 15Z,   0.40,   3.09,  99.90,   3.41,  -0.08,
07/03 16Z,   0.40,   4.10,  99.90,   4.42,  -0.08,
07/03 17Z,   0.40,   5.33,  99.90,   5.65,  -0.08,
07/03 18Z,   0.40,   6.43,  99.90,   6.75,  -0.08,
07/03 19Z,   0.40,   7.09,  99.90,   7.42,  -0.08,
07/03 20Z,   0.40,   7.28,  99.90,   7.60,  -0.08,  (max)
07/03 21Z,   0.40,   7.06,  99.90,   7.38,  -0.08,
07/03 22Z,   0.40,   6.56,  99.90,   6.88,  -0.08,
07/03 23Z,   0.40,   5.95,  99.90,   6.27,  -0.08,
07/04 00Z,   0.40,   5.49,  99.90,   5.82,  -0.08,
07/04 01Z,   0.40,   5.48,  99.90,   5.80,  -0.08,  (min)
07/04 02Z,   0.40,   5.98,  99.90,   6.30,  -0.08,
07/04 03Z,   0.40,   6.91,  99.90,   7.23,  -0.08,
07/04 04Z,   0.40,   8.12,  99.90,   8.44,  -0.08,
07/04 05Z,   0.40,   9.40,  99.90,   9.72,  -0.08,
07/04 06Z,   0.50,  10.42,  99.90,  10.85,  -0.08,
07/04 07Z,   0.50,  10.84,  99.90,  11.26,  -0.08,  (max)
07/04 08Z,   0.50,  10.50,  99.90,  10.92,  -0.08,
07/04 09Z,   0.50,   9.45,  99.90,   9.87,  -0.08,
07/04 10Z,   0.50,   7.84,  99.90,   8.26,  -0.08,
07/04 11Z,   0.40,   5.89,  99.90,   6.21,  -0.08,
07/04 12Z,   0.40,   3.95,  99.90,   4.27,  -0.08,