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
#Charleston, SC : 01/19/2026 12:21:48 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
01/17 12Z,  -0.10,   5.48,   5.17,  99.90,  -0.21,  (max)
01/17 13Z,  -0.10,   5.16,   4.81,  99.90,  -0.25,
01/17 14Z,  -0.10,   4.29,   3.73,  99.90,  -0.46,
01/17 15Z,  -0.20,   3.04,   2.52,  99.90,  -0.32,
01/17 16Z,  -0.20,   1.73,   1.14,  99.90,  -0.39,
01/17 17Z,  -0.20,   0.69,   0.38,  99.90,  -0.11,
01/17 18Z,  -0.20,   0.21,  -0.11,  99.90,  -0.12,  (min)
01/17 19Z,  -0.20,   0.46,  -0.03,  99.90,  -0.29,
01/17 20Z,  -0.20,   1.34,   0.82,  99.90,  -0.32,
01/17 21Z,  -0.20,   2.51,   1.93,  99.90,  -0.38,
01/17 22Z,  -0.20,   3.56,   3.19,  99.90,  -0.17,
01/17 23Z,  -0.10,   4.25,   3.90,  99.90,  -0.25,
01/18 00Z,  -0.20,   4.49,   4.22,  99.90,  -0.07,  (max)
01/18 01Z,  -0.20,   4.20,   3.90,  99.90,  -0.10,
01/18 02Z,  -0.10,   3.41,   3.04,  99.90,  -0.27,
01/18 03Z,  -0.10,   2.29,   1.76,  99.90,  -0.43,
01/18 04Z,  -0.10,   1.14,   0.70,  99.90,  -0.34,
01/18 05Z,  -0.10,   0.25,  -0.10,  99.90,  -0.25,
01/18 06Z,  -0.20,  -0.10,  -0.23,  99.90,   0.07,  (min)
01/18 07Z,  -0.20,   0.23,   0.40,  99.90,   0.37,
01/18 08Z,  -0.20,   1.21,   1.58,  99.90,   0.57,
01/18 09Z,  -0.20,   2.55,   2.77,  99.90,   0.42,
01/18 10Z,  -0.20,   3.86,   3.90,  99.90,   0.24,
01/18 11Z,  -0.30,   4.88,   4.73,  99.90,   0.15,
01/18 12Z,  -0.10,   5.46,   5.24,  99.90,  -0.12,
01/18 13Z,  -0.10,   5.53,   5.50,  99.90,   0.07,  (max)
01/18 14Z,  -0.10,   5.00,   5.21,  99.90,   0.31,
01/18 15Z,  -0.10,   3.94,   4.34,  99.90,   0.50,
01/18 16Z,   0.00,   2.56,   2.89,  99.90,   0.33,
01/18 17Z,  -0.10,   1.24,   1.32,  99.90,   0.18,
01/18 18Z,   0.00,   0.32,   0.17,  99.90,  -0.15,
01/18 19Z,   0.00,   0.07,  -0.22,  99.90,  -0.29,  (min)
01/18 20Z,   0.00,   0.60,   0.49,  99.90,  -0.11,
01/18 21Z,   0.10,   1.68,   1.62,  99.90,  -0.16,
01/18 22Z,   0.20,   2.92,   2.99,  99.90,  -0.13,
01/18 23Z,   0.20,   3.92,   3.92,  99.90,  -0.20,
01/19 00Z,   0.10,   4.48,   4.17,  99.90,  -0.41,
01/19 01Z,   0.10,   4.55,   4.19,  99.90,  -0.46,  (max)
01/19 02Z,   0.00,   4.09,   3.61,  99.90,  -0.48,
01/19 03Z,   0.00,   3.14,   2.70,  99.90,  -0.44,
01/19 04Z,   0.00,   1.92,   1.35,  99.90,  -0.57,
01/19 05Z,   0.00,   0.76,   0.23,  99.90,  -0.53,
01/19 06Z,   0.10,  -0.02,  -0.53,  99.90,  -0.61,  (min)
01/19 07Z,   0.20,  -0.17,  -0.45,  99.90,  -0.48,
01/19 08Z,   0.30,   0.42,   0.14,  99.90,  -0.58,
01/19 09Z,   0.30,   1.61,   1.46,  99.90,  -0.45,
01/19 10Z,   0.30,   3.04,   3.06,  99.90,  -0.28,
01/19 11Z,   0.20,   4.31,   4.04,  99.90,  -0.47,
01/19 12Z,   0.10,   5.19,   4.93,  99.90,  -0.36,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
01/19 13Z,   0.20,   5.59,  99.90,   5.45,  -0.34,  (max)
01/19 14Z,   0.10,   5.44,  99.90,   5.21,  -0.32,
01/19 15Z,   0.10,   4.69,  99.90,   4.49,  -0.31,
01/19 16Z,   0.10,   3.45,  99.90,   3.26,  -0.29,
01/19 17Z,   0.30,   2.01,  99.90,   2.03,  -0.27,
01/19 18Z,   0.20,   0.75,  99.90,   0.69,  -0.25,
01/19 19Z,   0.10,   0.03,  99.90,  -0.11,  -0.24,
01/19 20Z,   0.00,   0.07,  99.90,  -0.15,  -0.22,  (min)
01/19 21Z,   0.10,   0.87,  99.90,   0.77,  -0.20,
01/19 22Z,   0.10,   2.13,  99.90,   2.04,  -0.19,
01/19 23Z,   0.10,   3.38,  99.90,   3.31,  -0.17,
01/20 00Z,   0.00,   4.27,  99.90,   4.12,  -0.15,
01/20 01Z,   0.00,   4.67,  99.90,   4.51,  -0.15,  (max)
01/20 02Z,   0.00,   4.54,  99.90,   4.39,  -0.15,
01/20 03Z,   0.00,   3.89,  99.90,   3.74,  -0.15,
01/20 04Z,   0.00,   2.80,  99.90,   2.65,  -0.15,
01/20 05Z,   0.00,   1.53,  99.90,   1.38,  -0.15,
01/20 06Z,   0.10,   0.42,  99.90,   0.37,  -0.15,
01/20 07Z,   0.10,  -0.19,  99.90,  -0.24,  -0.15,  (min)
01/20 08Z,   0.10,  -0.10,  99.90,  -0.15,  -0.15,
01/20 09Z,   0.00,   0.74,  99.90,   0.59,  -0.15,
01/20 10Z,   0.00,   2.09,  99.90,   1.94,  -0.15,
01/20 11Z,   0.00,   3.54,  99.90,   3.39,  -0.15,
01/20 12Z,   0.00,   4.70,  99.90,   4.55,  -0.15,
01/20 13Z,   0.00,   5.39,  99.90,   5.24,  -0.15,
01/20 14Z,   0.00,   5.57,  99.90,   5.42,  -0.15,  (max)
01/20 15Z,   0.00,   5.19,  99.90,   5.04,  -0.15,
01/20 16Z,   0.00,   4.24,  99.90,   4.08,  -0.15,
01/20 17Z,   0.00,   2.87,  99.90,   2.71,  -0.15,
01/20 18Z,   0.00,   1.42,  99.90,   1.27,  -0.15,
01/20 19Z,   0.10,   0.31,  99.90,   0.26,  -0.15,
01/20 20Z,   0.10,  -0.15,  99.90,  -0.20,  -0.15,  (min)
01/20 21Z,   0.20,   0.21,  99.90,   0.26,  -0.15,
01/20 22Z,   0.30,   1.26,  99.90,   1.41,  -0.15,
01/20 23Z,   0.30,   2.63,  99.90,   2.78,  -0.15,
01/21 00Z,   0.20,   3.83,  99.90,   3.88,  -0.15,
01/21 01Z,   0.10,   4.58,  99.90,   4.53,  -0.15,
01/21 02Z,   0.10,   4.79,  99.90,   4.74,  -0.15,  (max)
01/21 03Z,   0.10,   4.47,  99.90,   4.42,  -0.15,
01/21 04Z,   0.20,   3.65,  99.90,   3.70,  -0.15,
01/21 05Z,   0.20,   2.45,  99.90,   2.50,  -0.15,
01/21 06Z,   0.30,   1.17,  99.90,   1.32,  -0.15,
01/21 07Z,   0.30,   0.17,  99.90,   0.32,  -0.15,
01/21 08Z,   0.40,  -0.23,  99.90,   0.01,  -0.15,  (min)
01/21 09Z,   0.30,   0.11,  99.90,   0.25,  -0.15,
01/21 10Z,   0.30,   1.14,  99.90,   1.29,  -0.15,
01/21 11Z,   0.30,   2.58,  99.90,   2.73,  -0.15,
01/21 12Z,   0.40,   3.97,  99.90,   4.22,  -0.15,
01/21 13Z,   0.40,   4.97,  99.90,   5.22,  -0.15,
01/21 14Z,   0.40,   5.45,  99.90,   5.70,  -0.15,  (max)
01/21 15Z,   0.40,   5.40,  99.90,   5.65,  -0.15,
01/21 16Z,   0.30,   4.80,  99.90,   4.95,  -0.15,
01/21 17Z,   0.30,   3.68,  99.90,   3.83,  -0.15,
01/21 18Z,   0.30,   2.24,  99.90,   2.39,  -0.15,
01/21 19Z,   0.20,   0.88,  99.90,   0.93,  -0.15,
01/21 20Z,   0.30,  -0.02,  99.90,   0.13,  -0.15,
01/21 21Z,   0.30,  -0.18,  99.90,  -0.04,  -0.15,  (min)
01/21 22Z,   0.40,   0.47,  99.90,   0.72,  -0.15,
01/21 23Z,   0.30,   1.73,  99.90,   1.87,  -0.15,
01/22 00Z,   0.30,   3.14,  99.90,   3.29,  -0.15,
01/22 01Z,   0.20,   4.25,  99.90,   4.30,  -0.15,
01/22 02Z,   0.20,   4.83,  99.90,   4.88,  -0.15,  (max)
01/22 03Z,   0.10,   4.85,  99.90,   4.80,  -0.15,
01/22 04Z,   0.10,   4.36,  99.90,   4.31,  -0.15,
01/22 05Z,   0.20,   3.40,  99.90,   3.45,  -0.15,
01/22 06Z,   0.30,   2.15,  99.90,   2.30,  -0.15,
01/22 07Z,   0.30,   0.91,  99.90,   1.06,  -0.15,
01/22 08Z,   0.20,   0.06,  99.90,   0.11,  -0.15,
01/22 09Z,   0.10,  -0.15,  99.90,  -0.20,  -0.15,  (min)
01/22 10Z,   0.00,   0.39,  99.90,   0.24,  -0.15,
01/22 11Z,   0.00,   1.56,  99.90,   1.41,  -0.15,
01/22 12Z,   0.10,   3.01,  99.90,   2.96,  -0.15,
01/22 13Z,   0.10,   4.28,  99.90,   4.23,  -0.15,
01/22 14Z,   0.10,   5.09,  99.90,   5.04,  -0.15,
01/22 15Z,   0.10,   5.35,  99.90,   5.30,  -0.15,  (max)
01/22 16Z,   0.10,   5.10,  99.90,   5.05,  -0.15,
01/22 17Z,   0.00,   4.32,  99.90,   4.17,  -0.15,
01/22 18Z,   0.00,   3.09,  99.90,   2.94,  -0.15,
01/22 19Z,   0.10,   1.66,  99.90,   1.61,  -0.15,
01/22 20Z,   0.20,   0.44,  99.90,   0.49,  -0.15,
01/22 21Z,   0.20,  -0.22,  99.90,  -0.17,  -0.15,  (min)
01/22 22Z,   0.40,  -0.10,  99.90,   0.15,  -0.15,
01/22 23Z,   0.40,   0.80,  99.90,   1.05,  -0.15,
01/23 00Z,   0.30,   2.19,  99.90,   2.34,  -0.15,