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 : 03/17/2025 09:21:33 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/15 18Z,   0.90,   4.17,   5.24,  99.90,   0.17,
03/15 19Z,   0.90,   2.71,   3.83,  99.90,   0.22,
03/15 20Z,   0.90,   2.34,   3.50,  99.90,   0.26,  (min)
03/15 21Z,   0.90,   3.08,   4.32,  99.90,   0.34,
03/15 22Z,   0.90,   4.65,   5.78,  99.90,   0.23,
03/15 23Z,   0.90,   6.63,   7.65,  99.90,   0.12,
03/16 00Z,   1.00,   8.48,   9.44,  99.90,  -0.04,
03/16 01Z,   1.00,   9.71,  10.65,  99.90,  -0.06,
03/16 02Z,   1.00,  10.03,  10.93,  99.90,  -0.10,  (max)
03/16 03Z,   1.00,   9.44,  10.21,  99.90,  -0.23,
03/16 04Z,   1.00,   8.14,   9.01,  99.90,  -0.13,
03/16 05Z,   1.00,   6.40,   7.27,  99.90,  -0.13,
03/16 06Z,   1.00,   4.64,   5.35,  99.90,  -0.29,
03/16 07Z,   1.00,   3.43,   4.06,  99.90,  -0.37,
03/16 08Z,   1.00,   3.22,   3.80,  99.90,  -0.42,  (min)
03/16 09Z,   1.00,   4.06,   4.73,  99.90,  -0.33,
03/16 10Z,   1.00,   5.69,   6.34,  99.90,  -0.35,
03/16 11Z,   1.00,   7.69,   8.41,  99.90,  -0.28,
03/16 12Z,   1.00,   9.59,  10.44,  99.90,  -0.15,
03/16 13Z,   1.00,  10.89,  11.87,  99.90,  -0.02,
03/16 14Z,   1.00,  11.23,  12.24,  99.90,   0.01,  (max)
03/16 15Z,   1.00,  10.53,  11.46,  99.90,  -0.07,
03/16 16Z,   1.00,   8.97,  10.13,  99.90,   0.16,
03/16 17Z,   1.00,   6.83,   8.04,  99.90,   0.21,
03/16 18Z,   1.00,   4.51,   5.66,  99.90,   0.15,
03/16 19Z,   1.00,   2.59,   3.72,  99.90,   0.13,
03/16 20Z,   0.90,   1.63,   2.75,  99.90,   0.22,  (min)
03/16 21Z,   0.90,   1.89,   2.97,  99.90,   0.18,
03/16 22Z,   0.90,   3.19,   4.23,  99.90,   0.14,
03/16 23Z,   0.90,   5.12,   5.98,  99.90,  -0.04,
03/17 00Z,   1.00,   7.22,   8.03,  99.90,  -0.19,
03/17 01Z,   0.90,   8.97,   9.76,  99.90,  -0.11,
03/17 02Z,   0.90,   9.96,  10.74,  99.90,  -0.12,  (max)
03/17 03Z,   0.90,  10.01,  10.71,  99.90,  -0.20,
03/17 04Z,   0.90,   9.26,   9.97,  99.90,  -0.19,
03/17 05Z,   0.90,   7.94,   8.82,  99.90,  -0.02,
03/17 06Z,   0.90,   6.38,   7.21,  99.90,  -0.07,
03/17 07Z,   0.90,   5.00,   5.72,  99.90,  -0.18,
03/17 08Z,   0.90,   4.28,   4.91,  99.90,  -0.27,  (min)
03/17 09Z,   0.90,   4.52,   5.05,  99.90,  -0.37,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/17 10Z,   0.80,   5.62,  99.90,   6.08,  -0.34,
03/17 11Z,   0.80,   7.24,  99.90,   7.72,  -0.32,
03/17 12Z,   0.80,   8.96,  99.90,   9.47,  -0.29,
03/17 13Z,   0.80,  10.37,  99.90,  10.91,  -0.27,
03/17 14Z,   0.80,  11.04,  99.90,  11.60,  -0.24,  (max)
03/17 15Z,   0.80,  10.72,  99.90,  11.31,  -0.21,
03/17 16Z,   0.80,   9.44,  99.90,  10.06,  -0.19,
03/17 17Z,   0.70,   7.46,  99.90,   8.00,  -0.16,
03/17 18Z,   0.70,   5.13,  99.90,   5.69,  -0.14,
03/17 19Z,   0.70,   2.91,  99.90,   3.50,  -0.11,
03/17 20Z,   0.70,   1.39,  99.90,   2.00,  -0.09,
03/17 21Z,   0.70,   1.02,  99.90,   1.66,  -0.06,  (min)
03/17 22Z,   0.70,   1.86,  99.90,   2.49,  -0.06,
03/17 23Z,   0.70,   3.58,  99.90,   4.22,  -0.06,
03/18 00Z,   0.70,   5.71,  99.90,   6.35,  -0.06,
03/18 01Z,   0.70,   7.79,  99.90,   8.42,  -0.06,
03/18 02Z,   0.70,   9.35,  99.90,   9.98,  -0.06,
03/18 03Z,   0.80,  10.08,  99.90,  10.81,  -0.06,  (max)
03/18 04Z,   0.80,   9.93,  99.90,  10.67,  -0.06,
03/18 05Z,   0.80,   9.11,  99.90,   9.84,  -0.06,
03/18 06Z,   0.80,   7.90,  99.90,   8.63,  -0.06,
03/18 07Z,   0.80,   6.61,  99.90,   7.35,  -0.06,
03/18 08Z,   0.70,   5.63,  99.90,   6.27,  -0.06,
03/18 09Z,   0.70,   5.34,  99.90,   5.98,  -0.06,  (min)
03/18 10Z,   0.70,   5.87,  99.90,   6.51,  -0.06,
03/18 11Z,   0.70,   7.03,  99.90,   7.66,  -0.06,
03/18 12Z,   0.60,   8.44,  99.90,   8.97,  -0.06,
03/18 13Z,   0.60,   9.74,  99.90,  10.28,  -0.06,
03/18 14Z,   0.60,  10.60,  99.90,  11.14,  -0.06,
03/18 15Z,   0.60,  10.68,  99.90,  11.22,  -0.06,  (max)
03/18 16Z,   0.50,   9.82,  99.90,  10.26,  -0.06,
03/18 17Z,   0.50,   8.15,  99.90,   8.58,  -0.06,
03/18 18Z,   0.50,   5.96,  99.90,   6.40,  -0.06,
03/18 19Z,   0.50,   3.66,  99.90,   4.10,  -0.06,
03/18 20Z,   0.50,   1.72,  99.90,   2.16,  -0.06,
03/18 21Z,   0.40,   0.69,  99.90,   1.02,  -0.06,  (min)
03/18 22Z,   0.40,   0.86,  99.90,   1.20,  -0.06,
03/18 23Z,   0.40,   2.14,  99.90,   2.48,  -0.06,
03/19 00Z,   0.40,   4.11,  99.90,   4.44,  -0.06,
03/19 01Z,   0.40,   6.27,  99.90,   6.61,  -0.06,
03/19 02Z,   0.40,   8.21,  99.90,   8.55,  -0.06,
03/19 03Z,   0.40,   9.54,  99.90,   9.88,  -0.06,
03/19 04Z,   0.40,  10.05,  99.90,  10.39,  -0.06,  (max)
03/19 05Z,   0.30,   9.79,  99.90,  10.03,  -0.06,
03/19 06Z,   0.30,   9.02,  99.90,   9.26,  -0.06,
03/19 07Z,   0.30,   8.02,  99.90,   8.25,  -0.06,
03/19 08Z,   0.30,   7.05,  99.90,   7.29,  -0.06,
03/19 09Z,   0.30,   6.44,  99.90,   6.68,  -0.06,  (min)
03/19 10Z,   0.30,   6.45,  99.90,   6.69,  -0.06,
03/19 11Z,   0.30,   7.10,  99.90,   7.33,  -0.06,
03/19 12Z,   0.30,   8.11,  99.90,   8.35,  -0.06,
03/19 13Z,   0.30,   9.17,  99.90,   9.40,  -0.06,
03/19 14Z,   0.30,  10.00,  99.90,  10.24,  -0.06,
03/19 15Z,   0.40,  10.35,  99.90,  10.69,  -0.06,  (max)
03/19 16Z,   0.40,   9.96,  99.90,  10.30,  -0.06,
03/19 17Z,   0.40,   8.75,  99.90,   9.08,  -0.06,
03/19 18Z,   0.40,   6.89,  99.90,   7.22,  -0.06,
03/19 19Z,   0.50,   4.71,  99.90,   5.15,  -0.06,
03/19 20Z,   0.50,   2.61,  99.90,   3.04,  -0.06,
03/19 21Z,   0.50,   1.04,  99.90,   1.47,  -0.06,
03/19 22Z,   0.50,   0.45,  99.90,   0.89,  -0.06,  (min)
03/19 23Z,   0.50,   1.04,  99.90,   1.47,  -0.06,
03/20 00Z,   0.60,   2.57,  99.90,   3.11,  -0.06,
03/20 01Z,   0.70,   4.59,  99.90,   5.23,  -0.06,
03/20 02Z,   0.70,   6.65,  99.90,   7.29,  -0.06,
03/20 03Z,   0.80,   8.39,  99.90,   9.13,  -0.06,
03/20 04Z,   0.90,   9.52,  99.90,  10.36,  -0.06,
03/20 05Z,   0.90,   9.90,  99.90,  10.74,  -0.06,  (max)
03/20 06Z,   1.00,   9.65,  99.90,  10.59,  -0.06,
03/20 07Z,   1.00,   9.04,  99.90,   9.97,  -0.06,
03/20 08Z,   1.10,   8.29,  99.90,   9.33,  -0.06,
03/20 09Z,   1.10,   7.64,  99.90,   8.67,  -0.06,
03/20 10Z,   1.20,   7.30,  99.90,   8.44,  -0.06,  (min)
03/20 11Z,   1.20,   7.45,  99.90,   8.59,  -0.06,
03/20 12Z,   1.10,   8.02,  99.90,   9.06,  -0.06,
03/20 13Z,   1.10,   8.76,  99.90,   9.79,  -0.06,
03/20 14Z,   1.10,   9.41,  99.90,  10.45,  -0.06,
03/20 15Z,   1.10,   9.82,  99.90,  10.86,  -0.06,  (max)
03/20 16Z,   1.00,   9.78,  99.90,  10.72,  -0.06,
03/20 17Z,   1.00,   9.10,  99.90,  10.04,  -0.06,
03/20 18Z,   1.00,   7.74,  99.90,   8.68,  -0.06,
03/20 19Z,   1.00,   5.89,  99.90,   6.83,  -0.06,
03/20 20Z,   1.00,   3.87,  99.90,   4.80,  -0.06,
03/20 21Z,   1.00,   2.03,  99.90,   2.97,  -0.06,
03/20 22Z,   0.90,   0.80,  99.90,   1.64,  -0.06,
03/20 23Z,   0.90,   0.54,  99.90,   1.38,  -0.06,  (min)
03/21 00Z,   0.90,   1.34,  99.90,   2.18,  -0.06,
03/21 01Z,  99.90,   2.93,  99.90,  99.90,  -0.06,
03/21 02Z,  99.90,   4.86,  99.90,  99.90,  -0.06,
03/21 03Z,  99.90,   6.76,  99.90,  99.90,  -0.06,
03/21 04Z,  99.90,   8.33,  99.90,  99.90,  -0.06,
03/21 05Z,  99.90,   9.34,  99.90,  99.90,  -0.06,
03/21 06Z,  99.90,   9.71,  99.90,  99.90,  -0.06,