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 : 04/28/2025 19:20:45 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/27 00Z,   0.70,   5.61,   5.09,  99.90,  -1.22,
04/27 01Z,   0.60,   3.11,   2.53,  99.90,  -1.18,
04/27 02Z,   0.60,   1.21,   0.62,  99.90,  -1.19,
04/27 03Z,   0.60,   0.51,  -0.02,  99.90,  -1.13,  (min)
04/27 04Z,   0.60,   1.25,   0.92,  99.90,  -0.93,
04/27 05Z,   0.60,   3.26,   3.00,  99.90,  -0.86,
04/27 06Z,   0.60,   6.07,   5.80,  99.90,  -0.87,
04/27 07Z,   0.60,   8.99,   8.77,  99.90,  -0.82,
04/27 08Z,   0.70,  11.25,  10.98,  99.90,  -0.97,
04/27 09Z,   0.70,  12.22,  11.89,  99.90,  -1.03,  (max)
04/27 10Z,   0.70,  11.65,  11.26,  99.90,  -1.09,
04/27 11Z,   0.60,   9.65,   9.27,  99.90,  -0.98,
04/27 12Z,   0.70,   6.58,   6.29,  99.90,  -0.99,
04/27 13Z,   0.70,   3.08,   2.74,  99.90,  -1.04,
04/27 14Z,   0.60,  -0.03,  -0.41,  99.90,  -0.98,
04/27 15Z,   0.60,  -1.98,  -2.34,  99.90,  -0.96,
04/27 16Z,   0.60,  -2.33,  -2.55,  99.90,  -0.82,  (min)
04/27 17Z,   0.60,  -1.07,  -1.29,  99.90,  -0.82,
04/27 18Z,   0.60,   1.43,   1.14,  99.90,  -0.89,
04/27 19Z,   0.60,   4.54,   4.22,  99.90,  -0.92,
04/27 20Z,   0.60,   7.48,   7.10,  99.90,  -0.98,
04/27 21Z,   0.60,   9.51,   9.22,  99.90,  -0.89,
04/27 22Z,   0.60,  10.21,   9.79,  99.90,  -1.02,  (max)
04/27 23Z,   0.80,   9.53,   9.06,  99.90,  -1.27,
04/28 00Z,   0.80,   7.71,   7.28,  99.90,  -1.23,
04/28 01Z,   0.80,   5.24,   4.91,  99.90,  -1.13,
04/28 02Z,   0.80,   2.81,   2.42,  99.90,  -1.19,
04/28 03Z,   0.80,   1.19,   0.89,  99.90,  -1.10,
04/28 04Z,   0.80,   0.93,   0.80,  99.90,  -0.93,  (min)
04/28 05Z,   0.80,   2.14,   2.17,  99.90,  -0.77,
04/28 06Z,   1.00,   4.55,   4.65,  99.90,  -0.90,
04/28 07Z,   1.00,   7.56,   7.65,  99.90,  -0.91,
04/28 08Z,   1.10,  10.41,  10.43,  99.90,  -1.08,
04/28 09Z,   1.10,  12.33,  12.34,  99.90,  -1.09,
04/28 10Z,   1.10,  12.78,  12.66,  99.90,  -1.22,  (max)
04/28 11Z,   1.10,  11.62,  11.37,  99.90,  -1.35,
04/28 12Z,   1.20,   9.05,   8.74,  99.90,  -1.51,
04/28 13Z,   1.20,   5.55,   5.32,  99.90,  -1.43,
04/28 14Z,   1.20,   1.84,   1.53,  99.90,  -1.51,
04/28 15Z,   1.20,  -1.21,  -1.54,  99.90,  -1.53,
04/28 16Z,   1.10,  -2.88,  -3.01,  99.90,  -1.23,
04/28 17Z,   1.10,  -2.81,  -3.01,  99.90,  -1.30,  (min)
04/28 18Z,   1.10,  -1.13,  -1.34,  99.90,  -1.31,
04/28 19Z,   1.20,   1.69,   1.41,  99.90,  -1.48,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/28 20Z,   1.30,   4.94,  99.90,   4.79,  -1.46,
04/28 21Z,   1.30,   7.82,  99.90,   7.69,  -1.43,
04/28 22Z,   1.40,   9.64,  99.90,   9.64,  -1.40,
04/28 23Z,   1.40,  10.08,  99.90,  10.11,  -1.37,  (max)
04/29 00Z,   1.50,   9.19,  99.90,   9.35,  -1.34,
04/29 01Z,   1.50,   7.26,  99.90,   7.45,  -1.31,
04/29 02Z,   1.50,   4.84,  99.90,   5.06,  -1.28,
04/29 03Z,   1.50,   2.66,  99.90,   2.90,  -1.25,
04/29 04Z,   1.40,   1.44,  99.90,   1.61,  -1.22,  (min)
04/29 05Z,   1.30,   1.63,  99.90,   1.73,  -1.20,
04/29 06Z,   1.30,   3.23,  99.90,   3.36,  -1.17,
04/29 07Z,   1.20,   5.83,  99.90,   5.90,  -1.14,
04/29 08Z,   1.20,   8.81,  99.90,   8.87,  -1.14,
04/29 09Z,   1.20,  11.38,  99.90,  11.45,  -1.14,
04/29 10Z,   1.20,  12.84,  99.90,  12.90,  -1.14,  (max)
04/29 11Z,   1.20,  12.75,  99.90,  12.82,  -1.14,
04/29 12Z,   1.20,  11.10,  99.90,  11.16,  -1.14,
04/29 13Z,   1.10,   8.18,  99.90,   8.14,  -1.14,
04/29 14Z,   1.00,   4.53,  99.90,   4.39,  -1.14,
04/29 15Z,   1.00,   0.89,  99.90,   0.75,  -1.14,
04/29 16Z,   0.90,  -1.89,  99.90,  -2.12,  -1.14,
04/29 17Z,   0.90,  -3.15,  99.90,  -3.39,  -1.14,  (min)
04/29 18Z,   0.90,  -2.69,  99.90,  -2.93,  -1.14,
04/29 19Z,   0.90,  -0.73,  99.90,  -0.96,  -1.14,
04/29 20Z,   0.90,   2.19,  99.90,   1.95,  -1.14,
04/29 21Z,   1.00,   5.34,  99.90,   5.20,  -1.14,
04/29 22Z,   1.00,   7.95,  99.90,   7.81,  -1.14,
04/29 23Z,   1.00,   9.47,  99.90,   9.33,  -1.14,
04/30 00Z,   0.90,   9.66,  99.90,   9.42,  -1.14,  (max)
04/30 01Z,   1.00,   8.64,  99.90,   8.50,  -1.14,
04/30 02Z,   0.90,   6.75,  99.90,   6.51,  -1.14,
04/30 03Z,   0.90,   4.54,  99.90,   4.30,  -1.14,
04/30 04Z,   0.80,   2.72,  99.90,   2.38,  -1.14,
04/30 05Z,   0.90,   1.93,  99.90,   1.69,  -1.14,  (min)
04/30 06Z,   0.90,   2.50,  99.90,   2.26,  -1.14,
04/30 07Z,   0.90,   4.30,  99.90,   4.06,  -1.14,
04/30 08Z,   0.80,   6.89,  99.90,   6.55,  -1.14,
04/30 09Z,   0.80,   9.61,  99.90,   9.27,  -1.14,
04/30 10Z,   0.80,  11.76,  99.90,  11.42,  -1.14,
04/30 11Z,   0.80,  12.72,  99.90,  12.38,  -1.14,  (max)
04/30 12Z,   0.80,  12.19,  99.90,  11.86,  -1.14,
04/30 13Z,   0.70,  10.26,  99.90,   9.82,  -1.14,
04/30 14Z,   0.80,   7.25,  99.90,   6.92,  -1.14,
04/30 15Z,   0.80,   3.72,  99.90,   3.38,  -1.14,
04/30 16Z,   0.90,   0.39,  99.90,   0.15,  -1.14,
04/30 17Z,   1.10,  -1.97,  99.90,  -2.01,  -1.14,
04/30 18Z,   1.00,  -2.82,  99.90,  -2.96,  -1.14,  (min)
04/30 19Z,   1.10,  -2.08,  99.90,  -2.12,  -1.14,
04/30 20Z,   1.20,  -0.04,  99.90,   0.02,  -1.14,
04/30 21Z,   1.40,   2.74,  99.90,   3.00,  -1.14,
04/30 22Z,   1.30,   5.58,  99.90,   5.74,  -1.14,
04/30 23Z,   1.20,   7.83,  99.90,   7.89,  -1.14,
05/01 00Z,   1.20,   9.02,  99.90,   9.08,  -1.14,  (max)
05/01 01Z,   0.90,   9.04,  99.90,   8.80,  -1.14,
05/01 02Z,   0.90,   8.02,  99.90,   7.78,  -1.14,
05/01 03Z,   0.90,   6.32,  99.90,   6.08,  -1.14,
05/01 04Z,   0.80,   4.43,  99.90,   4.09,  -1.14,
05/01 05Z,   0.80,   3.01,  99.90,   2.67,  -1.14,
05/01 06Z,   0.80,   2.60,  99.90,   2.26,  -1.14,  (min)
05/01 07Z,   1.00,   3.38,  99.90,   3.25,  -1.14,
05/01 08Z,   0.80,   5.18,  99.90,   4.84,  -1.14,
05/01 09Z,   0.80,   7.53,  99.90,   7.19,  -1.14,
05/01 10Z,   1.00,   9.84,  99.90,   9.70,  -1.14,
05/01 11Z,   1.10,  11.51,  99.90,  11.47,  -1.14,
05/01 12Z,   1.00,  12.05,  99.90,  11.91,  -1.14,  (max)
05/01 13Z,   1.00,  11.27,  99.90,  11.13,  -1.14,
05/01 14Z,   1.20,   9.29,  99.90,   9.35,  -1.14,
05/01 15Z,   1.30,   6.45,  99.90,   6.62,  -1.14,
05/01 16Z,   1.30,   3.26,  99.90,   3.43,  -1.14,
05/01 17Z,   1.30,   0.38,  99.90,   0.54,  -1.14,
05/01 18Z,   1.30,  -1.53,  99.90,  -1.36,  -1.14,
05/01 19Z,   1.40,  -2.06,  99.90,  -1.79,  -1.14,  (min)
05/01 20Z,   1.30,  -1.21,  99.90,  -1.04,  -1.14,
05/01 21Z,   1.40,   0.70,  99.90,   0.96,  -1.14,
05/01 22Z,   1.40,   3.16,  99.90,   3.43,  -1.14,
05/01 23Z,   1.50,   5.61,  99.90,   5.97,  -1.14,
05/02 00Z,   1.40,   7.47,  99.90,   7.73,  -1.14,
05/02 01Z,   1.40,   8.42,  99.90,   8.68,  -1.14,  (max)
05/02 02Z,   1.40,   8.38,  99.90,   8.64,  -1.14,
05/02 03Z,   1.50,   7.51,  99.90,   7.87,  -1.14,
05/02 04Z,   1.50,   6.08,  99.90,   6.44,  -1.14,
05/02 05Z,   1.50,   4.56,  99.90,   4.92,  -1.14,
05/02 06Z,   1.60,   3.49,  99.90,   3.96,  -1.14,
05/02 07Z,   1.60,   3.31,  99.90,   3.77,  -1.14,  (min)
05/02 08Z,   1.60,   4.12,  99.90,   4.58,  -1.14,
05/02 09Z,   1.50,   5.70,  99.90,   6.06,  -1.14,
05/02 10Z,   1.50,   7.66,  99.90,   8.02,  -1.14,
05/02 11Z,   1.50,   9.51,  99.90,   9.87,  -1.14,
05/02 12Z,   1.40,  10.75,  99.90,  11.01,  -1.14,