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
Ketchikan, AK
Sitka, AK
Juneau, AK
Skagway, AK
Elfin Cove, AK
Yakutat, AK
Cordova, AK
Valdez, AK
Seward, AK
Seldovia, AK
Nikiski, AK
Anchorage, AK
Kodiak Island, AK
Alitak, AK
Sand Point, AK
King Cove, AK
Adak Island, AK
Atka, AK
Unalaska, AK
Surge List
Gulf of Alaska
#Seldovia, AK : 02/18/2026 06:21:00 GMT (units in feet MSL)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
02/16 12Z,  -1.20,   7.25,   5.85,  99.90,  -0.20,  (max)
02/16 13Z,  -1.20,   4.84,   3.62,  99.90,  -0.02,
02/16 14Z,  -1.20,   1.19,   0.14,  99.90,   0.15,
02/16 15Z,  -1.20,  -2.68,  -3.50,  99.90,   0.38,
02/16 16Z,  -1.30,  -5.49,  -6.45,  99.90,   0.34,
02/16 17Z,  -1.50,  -6.24,  -7.54,  99.90,   0.20,  (min)
02/16 18Z,  -1.50,  -4.80,  -6.02,  99.90,   0.28,
02/16 19Z,  -1.40,  -1.71,  -2.84,  99.90,   0.27,
02/16 20Z,  -1.40,   2.25,   1.12,  99.90,   0.27,
02/16 21Z,  -1.30,   6.07,   4.90,  99.90,   0.13,
02/16 22Z,  -1.10,   8.67,   7.68,  99.90,   0.11,
02/16 23Z,  -1.20,   9.34,   8.54,  99.90,   0.40,  (max)
02/17 00Z,  -1.50,   7.84,   7.02,  99.90,   0.68,
02/17 01Z,  -1.50,   4.41,   3.45,  99.90,   0.54,
02/17 02Z,  -1.50,  -0.32,  -1.11,  99.90,   0.71,
02/17 03Z,  -1.40,  -5.38,  -6.11,  99.90,   0.67,
02/17 04Z,  -1.30,  -9.50, -10.37,  99.90,   0.43,
02/17 05Z,  -1.20, -11.47, -12.37,  99.90,   0.30,  (min)
02/17 06Z,  -1.50, -10.82, -11.77,  99.90,   0.55,
02/17 07Z,  -1.50,  -7.91,  -9.12,  99.90,   0.29,
02/17 08Z,  -1.40,  -3.50,  -4.77,  99.90,   0.13,
02/17 09Z,  -1.20,   1.47,   0.24,  99.90,  -0.03,
02/17 10Z,  -1.00,   5.81,   4.75,  99.90,  -0.06,
02/17 11Z,  -0.90,   8.48,   7.50,  99.90,  -0.08,
02/17 12Z,  -1.30,   8.92,   7.97,  99.90,   0.35,  (max)
02/17 13Z,  -1.30,   7.06,   6.33,  99.90,   0.57,
02/17 14Z,  -1.30,   3.39,   2.75,  99.90,   0.66,
02/17 15Z,  -1.20,  -1.15,  -1.84,  99.90,   0.51,
02/17 16Z,  -1.00,  -5.28,  -5.98,  99.90,   0.30,
02/17 17Z,  -0.90,  -7.62,  -8.44,  99.90,   0.08,  (min)
02/17 18Z,  -1.30,  -7.37,  -8.26,  99.90,   0.41,
02/17 19Z,  -1.20,  -4.77,  -5.57,  99.90,   0.40,
02/17 20Z,  -1.10,  -0.68,  -1.43,  99.90,   0.35,
02/17 21Z,  -1.00,   3.91,   3.02,  99.90,   0.11,
02/17 22Z,  -0.80,   7.82,   6.96,  99.90,  -0.06,
02/17 23Z,  -0.70,  10.00,   9.16,  99.90,  -0.14,  (max)
02/18 00Z,  -1.10,   9.82,   8.98,  99.90,   0.26,
02/18 01Z,  -1.10,   7.25,   6.38,  99.90,   0.23,
02/18 02Z,  -1.00,   2.76,   1.92,  99.90,   0.16,
02/18 03Z,  -0.90,  -2.69,  -3.36,  99.90,   0.23,
02/18 04Z,  -0.80,  -7.85,  -8.56,  99.90,   0.09,
02/18 05Z,  -0.70, -11.33, -12.21,  99.90,  -0.18,
02/18 06Z,  -0.70, -12.07, -13.09,  99.90,  -0.32,  (min)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
02/18 07Z,  -0.70,  -9.99,  99.90, -11.00,  -0.32,
02/18 08Z,  -0.80,  -5.85,  99.90,  -6.96,  -0.31,
02/18 09Z,  -0.90,  -0.65,  99.90,  -1.85,  -0.30,
02/18 10Z,  -1.00,   4.48,  99.90,   3.18,  -0.30,
02/18 11Z,  -1.10,   8.32,  99.90,   6.93,  -0.29,
02/18 12Z,  -1.20,   9.97,  99.90,   8.49,  -0.28,  (max)
02/18 13Z,  -1.30,   9.07,  99.90,   7.49,  -0.28,
02/18 14Z,  -1.30,   5.85,  99.90,   4.28,  -0.27,
02/18 15Z,  -1.10,   1.13,  99.90,  -0.23,  -0.26,
02/18 16Z,  -0.90,  -3.87,  99.90,  -5.03,  -0.26,
02/18 17Z,  -0.80,  -7.72,  99.90,  -8.77,  -0.25,
02/18 18Z,  -0.80,  -9.13,  99.90, -10.17,  -0.25,  (min)
02/18 19Z,  -0.70,  -7.68,  99.90,  -8.63,  -0.25,
02/18 20Z,  -0.60,  -4.01,  99.90,  -4.85,  -0.25,
02/18 21Z,  -0.60,   0.80,  99.90,  -0.05,  -0.25,
02/18 22Z,  -0.60,   5.59,  99.90,   4.75,  -0.25,
02/18 23Z,  -0.60,   9.18,  99.90,   8.33,  -0.25,
02/19 00Z,  -0.70,  10.59,  99.90,   9.64,  -0.25,  (max)
02/19 01Z,  -0.80,   9.40,  99.90,   8.35,  -0.25,
02/19 02Z,  -0.90,   5.80,  99.90,   4.65,  -0.25,
02/19 03Z,  -1.00,   0.57,  99.90,  -0.68,  -0.25,
02/19 04Z,  -1.00,  -5.08,  99.90,  -6.33,  -0.25,
02/19 05Z,  -0.90,  -9.74,  99.90, -10.89,  -0.25,
02/19 06Z,  -0.80, -12.08,  99.90, -13.12,  -0.25,  (min)
02/19 07Z,  -0.70, -11.36,  99.90, -12.30,  -0.25,
02/19 08Z,  -0.60,  -7.95,  99.90,  -8.80,  -0.25,
02/19 09Z,  -0.50,  -2.93,  99.90,  -3.68,  -0.25,
02/19 10Z,  -0.50,   2.54,  99.90,   1.79,  -0.25,
02/19 11Z,  -0.60,   7.26,  99.90,   6.42,  -0.25,
02/19 12Z,  -0.80,  10.13,  99.90,   9.09,  -0.25,
02/19 13Z,  -0.90,  10.46,  99.90,   9.31,  -0.25,  (max)
02/19 14Z,  -1.10,   8.16,  99.90,   6.82,  -0.25,
02/19 15Z,  -1.30,   3.80,  99.90,   2.25,  -0.25,
02/19 16Z,  -1.30,  -1.53,  99.90,  -3.07,  -0.25,
02/19 17Z,  -1.40,  -6.44,  99.90,  -8.08,  -0.25,
02/19 18Z,  -1.40,  -9.52,  99.90, -11.16,  -0.25,
02/19 19Z,  -1.20,  -9.77,  99.90, -11.22,  -0.25,  (min)
02/19 20Z,  -0.90,  -7.19,  99.90,  -8.34,  -0.25,
02/19 21Z,  -0.70,  -2.76,  99.90,  -3.70,  -0.25,
02/19 22Z,  -0.60,   2.32,  99.90,   1.48,  -0.25,
02/19 23Z,  -0.60,   6.88,  99.90,   6.03,  -0.25,
02/20 00Z,  -0.70,   9.79,  99.90,   8.84,  -0.25,
02/20 01Z,  -0.80,  10.26,  99.90,   9.21,  -0.25,  (max)
02/20 02Z,  -1.10,   8.11,  99.90,   6.76,  -0.25,
02/20 03Z,  -1.50,   3.78,  99.90,   2.04,  -0.25,
02/20 04Z,  -1.70,  -1.68,  99.90,  -3.62,  -0.25,
02/20 05Z,  -1.60,  -6.92,  99.90,  -8.77,  -0.25,
02/20 06Z,  -1.50, -10.57,  99.90, -12.32,  -0.25,
02/20 07Z,  -1.40, -11.51,  99.90, -13.15,  -0.25,  (min)
02/20 08Z,  -1.30,  -9.42,  99.90, -10.96,  -0.25,
02/20 09Z,  -1.30,  -5.06,  99.90,  -6.61,  -0.25,
02/20 10Z,  -1.30,   0.29,  99.90,  -1.25,  -0.25,
02/20 11Z,  -1.30,   5.46,  99.90,   3.91,  -0.25,
02/20 12Z,  -1.40,   9.31,  99.90,   7.67,  -0.25,
02/20 13Z,  -1.40,  10.92,  99.90,   9.27,  -0.25,  (max)
02/20 14Z,  -1.30,   9.87,  99.90,   8.32,  -0.25,
02/20 15Z,  -1.40,   6.39,  99.90,   4.75,  -0.25,
02/20 16Z,  -1.40,   1.34,  99.90,  -0.31,  -0.25,
02/20 17Z,  -1.40,  -4.03,  99.90,  -5.68,  -0.25,
02/20 18Z,  -1.30,  -8.34,  99.90,  -9.89,  -0.25,
02/20 19Z,  -1.10, -10.39,  99.90, -11.74,  -0.25,  (min)
02/20 20Z,  -1.00,  -9.53,  99.90, -10.77,  -0.25,
02/20 21Z,  -0.90,  -6.15,  99.90,  -7.29,  -0.25,
02/20 22Z,  -0.90,  -1.41,  99.90,  -2.55,  -0.25,
02/20 23Z,  -1.00,   3.47,  99.90,   2.23,  -0.25,
02/21 00Z,  -1.00,   7.42,  99.90,   6.18,  -0.25,
02/21 01Z,  -0.90,   9.47,  99.90,   8.33,  -0.25,  (max)
02/21 02Z,  -1.00,   9.06,  99.90,   7.81,  -0.25,
02/21 03Z,  -1.10,   6.23,  99.90,   4.89,  -0.25,
02/21 04Z,  -1.20,   1.69,  99.90,   0.24,  -0.25,
02/21 05Z,  -1.20,  -3.42,  99.90,  -4.87,  -0.25,
02/21 06Z,  -1.10,  -7.76,  99.90,  -9.11,  -0.25,
02/21 07Z,  -1.00, -10.14,  99.90, -11.38,  -0.25,  (min)
02/21 08Z,  -0.90,  -9.74,  99.90, -10.89,  -0.25,
02/21 09Z,  -0.80,  -6.65,  99.90,  -7.70,  -0.25,
02/21 10Z,  -0.80,  -1.91,  99.90,  -2.95,  -0.25,
02/21 11Z,  -0.90,   3.21,  99.90,   2.06,  -0.25,
02/21 12Z,  -1.00,   7.60,  99.90,   6.36,  -0.25,
02/21 13Z,  -1.00,  10.30,  99.90,   9.05,  -0.25,
02/21 14Z,  -1.10,  10.61,  99.90,   9.27,  -0.25,  (max)
02/21 15Z,  -1.20,   8.43,  99.90,   6.98,  -0.25,
02/21 16Z,  -1.30,   4.24,  99.90,   2.69,  -0.25,
02/21 17Z,  -1.30,  -0.95,  99.90,  -2.49,  -0.25,
02/21 18Z,  -1.30,  -5.85,  99.90,  -7.39,  -0.25,
02/21 19Z,  -1.10,  -9.28,  99.90, -10.62,  -0.25,
02/21 20Z,  -0.90, -10.31,  99.90, -11.45,  -0.25,  (min)
02/21 21Z,  -0.80,  -8.64,  99.90,  -9.68,  -0.25,
02/21 22Z,  -0.70,  -4.93,  99.90,  -5.88,  -0.25,
02/21 23Z,  -0.60,  -0.40,  99.90,  -1.24,  -0.25,
02/22 00Z,  -0.50,   3.91,  99.90,   3.16,  -0.25,