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
#Ketchikan, AK : 04/15/2026 09:20:18 GMT (units in feet MSL)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/13 18Z,   0.30,   4.74,   4.85,  99.90,  -0.19,
04/13 19Z,   0.20,   4.77,   4.93,  99.90,  -0.04,  (max)
04/13 20Z,   0.20,   3.52,   3.74,  99.90,   0.02,
04/13 21Z,   0.10,   1.21,   1.45,  99.90,   0.14,
04/13 22Z,   0.10,  -1.61,  -1.38,  99.90,   0.13,
04/13 23Z,   0.10,  -4.29,  -4.08,  99.90,   0.11,
04/14 00Z,   0.30,  -6.15,  -6.08,  99.90,  -0.23,
04/14 01Z,   0.30,  -6.73,  -6.61,  99.90,  -0.18,  (min)
04/14 02Z,   0.30,  -5.86,  -5.64,  99.90,  -0.08,
04/14 03Z,   0.20,  -3.75,  -3.46,  99.90,   0.09,
04/14 04Z,   0.20,  -0.87,  -0.51,  99.90,   0.16,
04/14 05Z,   0.10,   2.09,   2.47,  99.90,   0.28,
04/14 06Z,   0.20,   4.45,   4.77,  99.90,   0.12,
04/14 07Z,   0.20,   5.63,   5.99,  99.90,   0.16,  (max)
04/14 08Z,   0.10,   5.34,   5.78,  99.90,   0.34,
04/14 09Z,   0.10,   3.64,   4.12,  99.90,   0.38,
04/14 10Z,   0.10,   0.95,   1.54,  99.90,   0.49,
04/14 11Z,   0.00,  -2.03,  -1.44,  99.90,   0.59,
04/14 12Z,   0.20,  -4.49,  -3.94,  99.90,   0.35,
04/14 13Z,   0.10,  -5.77,  -5.29,  99.90,   0.38,  (min)
04/14 14Z,   0.10,  -5.50,  -5.13,  99.90,   0.27,
04/14 15Z,   0.00,  -3.77,  -3.45,  99.90,   0.32,
04/14 16Z,   0.00,  -1.03,  -0.75,  99.90,   0.28,
04/14 17Z,   0.00,   1.99,   2.30,  99.90,   0.31,
04/14 18Z,   0.10,   4.50,   4.80,  99.90,   0.20,
04/14 19Z,   0.00,   5.84,   6.14,  99.90,   0.30,  (max)
04/14 20Z,   0.00,   5.63,   5.94,  99.90,   0.31,
04/14 21Z,   0.00,   3.86,   4.21,  99.90,   0.35,
04/14 22Z,   0.00,   0.93,   1.27,  99.90,   0.34,
04/14 23Z,   0.00,  -2.44,  -2.12,  99.90,   0.32,
04/15 00Z,   0.00,  -5.39,  -5.14,  99.90,   0.25,
04/15 01Z,   0.00,  -7.13,  -6.94,  99.90,   0.19,
04/15 02Z,   0.00,  -7.21,  -7.09,  99.90,   0.12,  (min)
04/15 03Z,   0.00,  -5.58,  -5.47,  99.90,   0.11,
04/15 04Z,   0.00,  -2.65,  -2.55,  99.90,   0.10,
04/15 05Z,   0.00,   0.88,   1.00,  99.90,   0.12,
04/15 06Z,   0.00,   4.16,   4.24,  99.90,   0.08,
04/15 07Z,  -0.10,   6.42,   6.50,  99.90,   0.18,
04/15 08Z,  -0.10,   7.07,   7.22,  99.90,   0.25,  (max)
04/15 09Z,  -0.10,   5.93,   6.10,  99.90,   0.27,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/15 10Z,   0.00,   3.21,  99.90,   3.48,   0.27,
04/15 11Z,   0.00,  -0.43,  99.90,  -0.16,   0.27,
04/15 12Z,   0.00,  -4.07,  99.90,  -3.79,   0.27,
04/15 13Z,   0.00,  -6.74,  99.90,  -6.46,   0.27,
04/15 14Z,   0.00,  -7.72,  99.90,  -7.45,   0.27,  (min)
04/15 15Z,  -0.10,  -6.78,  99.90,  -6.61,   0.27,
04/15 16Z,  -0.20,  -4.18,  99.90,  -4.11,   0.28,
04/15 17Z,  -0.20,  -0.63,  99.90,  -0.55,   0.28,
04/15 18Z,  -0.30,   2.97,  99.90,   2.94,   0.28,
04/15 19Z,  -0.30,   5.69,  99.90,   5.67,   0.28,
04/15 20Z,  -0.40,   6.87,  99.90,   6.75,   0.28,  (max)
04/15 21Z,  -0.40,   6.18,  99.90,   6.05,   0.28,
04/15 22Z,  -0.40,   3.76,  99.90,   3.64,   0.28,
04/15 23Z,  -0.30,   0.21,  99.90,   0.19,   0.28,
04/16 00Z,  -0.30,  -3.53,  99.90,  -3.56,   0.28,
04/16 01Z,  -0.30,  -6.46,  99.90,  -6.49,   0.28,
04/16 02Z,  -0.20,  -7.77,  99.90,  -7.69,   0.28,  (min)
04/16 03Z,  -0.20,  -7.08,  99.90,  -7.00,   0.28,
04/16 04Z,  -0.20,  -4.57,  99.90,  -4.49,   0.28,
04/16 05Z,  -0.30,  -0.88,  99.90,  -0.90,   0.28,
04/16 06Z,  -0.30,   3.09,  99.90,   3.07,   0.28,
04/16 07Z,  -0.40,   6.37,  99.90,   6.25,   0.28,
04/16 08Z,  -0.40,   8.18,  99.90,   8.06,   0.28,  (max)
04/16 09Z,  -0.40,   8.02,  99.90,   7.90,   0.28,
04/16 10Z,  -0.50,   5.84,  99.90,   5.62,   0.28,
04/16 11Z,  -0.40,   2.08,  99.90,   1.96,   0.28,
04/16 12Z,  -0.40,  -2.36,  99.90,  -2.48,   0.28,
04/16 13Z,  -0.40,  -6.37,  99.90,  -6.49,   0.28,
04/16 14Z,  -0.40,  -8.89,  99.90,  -9.01,   0.28,
04/16 15Z,  -0.40,  -9.28,  99.90,  -9.40,   0.28,  (min)
04/16 16Z,  -0.40,  -7.48,  99.90,  -7.60,   0.28,
04/16 17Z,  -0.40,  -4.01,  99.90,  -4.13,   0.28,
04/16 18Z,  -0.40,   0.20,  99.90,   0.08,   0.28,
04/16 19Z,  -0.40,   4.12,  99.90,   3.99,   0.28,
04/16 20Z,  -0.40,   6.78,  99.90,   6.66,   0.28,
04/16 21Z,  -0.40,   7.56,  99.90,   7.44,   0.28,  (max)
04/16 22Z,  -0.40,   6.26,  99.90,   6.14,   0.28,
04/16 23Z,  -0.30,   3.21,  99.90,   3.18,   0.28,
04/17 00Z,  -0.30,  -0.80,  99.90,  -0.82,   0.28,
04/17 01Z,  -0.30,  -4.64,  99.90,  -4.66,   0.28,
04/17 02Z,  -0.30,  -7.23,  99.90,  -7.25,   0.28,
04/17 03Z,  -0.30,  -7.83,  99.90,  -7.85,   0.28,  (min)
04/17 04Z,  -0.30,  -6.25,  99.90,  -6.27,   0.28,
04/17 05Z,  -0.40,  -2.93,  99.90,  -3.05,   0.28,
04/17 06Z,  -0.40,   1.29,  99.90,   1.17,   0.28,
04/17 07Z,  -0.50,   5.37,  99.90,   5.14,   0.28,
04/17 08Z,  -0.50,   8.32,  99.90,   8.10,   0.28,
04/17 09Z,  -0.50,   9.41,  99.90,   9.19,   0.28,  (max)
04/17 10Z,  -0.50,   8.28,  99.90,   8.05,   0.28,
04/17 11Z,  -0.40,   5.06,  99.90,   4.94,   0.28,
04/17 12Z,  -0.40,   0.43,  99.90,   0.31,   0.28,
04/17 13Z,  -0.30,  -4.51,  99.90,  -4.53,   0.28,
04/17 14Z,  -0.30,  -8.52,  99.90,  -8.54,   0.28,
04/17 15Z,  -0.40, -10.56,  99.90, -10.69,   0.28,  (min)
04/17 16Z,  -0.40, -10.17,  99.90, -10.29,   0.28,
04/17 17Z,  -0.50,  -7.52,  99.90,  -7.74,   0.28,
04/17 18Z,  -0.50,  -3.36,  99.90,  -3.58,   0.28,
04/17 19Z,  -0.60,   1.23,  99.90,   0.91,   0.28,
04/17 20Z,  -0.50,   5.16,  99.90,   4.94,   0.28,
04/17 21Z,  -0.50,   7.51,  99.90,   7.29,   0.28,
04/17 22Z,  -0.40,   7.75,  99.90,   7.63,   0.28,  (max)
04/17 23Z,  -0.30,   5.84,  99.90,   5.82,   0.28,
04/18 00Z,  -0.20,   2.30,  99.90,   2.38,   0.28,
04/18 01Z,  -0.10,  -1.88,  99.90,  -1.71,   0.28,
04/18 02Z,  -0.10,  -5.50,  99.90,  -5.32,   0.28,
04/18 03Z,  -0.10,  -7.47,  99.90,  -7.29,   0.28,  (min)
04/18 04Z,  -0.10,  -7.23,  99.90,  -7.05,   0.28,
04/18 05Z,  -0.20,  -4.84,  99.90,  -4.76,   0.28,
04/18 06Z,  -0.30,  -0.94,  99.90,  -0.96,   0.28,
04/18 07Z,  -0.30,   3.46,  99.90,   3.44,   0.28,
04/18 08Z,  -0.40,   7.31,  99.90,   7.19,   0.28,
04/18 09Z,  -0.30,   9.67,  99.90,   9.65,   0.28,
04/18 10Z,  -0.30,   9.90,  99.90,   9.88,   0.28,  (max)
04/18 11Z,  -0.20,   7.81,  99.90,   7.89,   0.28,
04/18 12Z,  -0.10,   3.75,  99.90,   3.92,   0.28,
04/18 13Z,   0.00,  -1.43,  99.90,  -1.15,   0.28,
04/18 14Z,   0.00,  -6.46,  99.90,  -6.19,   0.28,
04/18 15Z,   0.00, -10.11,  99.90,  -9.83,   0.28,
04/18 16Z,   0.00, -11.47,  99.90, -11.19,   0.28,  (min)
04/18 17Z,  -0.10, -10.29,  99.90, -10.11,   0.28,
04/18 18Z,  -0.20,  -6.98,  99.90,  -6.90,   0.28,
04/18 19Z,  -0.30,  -2.44,  99.90,  -2.47,   0.28,
04/18 20Z,  -0.30,   2.19,  99.90,   2.17,   0.28,
04/18 21Z,  -0.30,   5.85,  99.90,   5.83,   0.28,
04/18 22Z,  -0.20,   7.71,  99.90,   7.79,   0.28,  (max)
04/18 23Z,  -0.10,   7.39,  99.90,   7.57,   0.28,
04/19 00Z,   0.00,   5.00,  99.90,   5.28,   0.28,
04/19 01Z,  99.90,   1.23,  99.90,  99.90,   0.28,
04/19 02Z,  99.90,  -2.80,  99.90,  99.90,   0.28,
04/19 03Z,  99.90,  -5.90,  99.90,  99.90,   0.28,
04/19 04Z,  99.90,  -7.11,  99.90,  99.90,   0.28,
04/19 05Z,  99.90,  -6.09,  99.90,  99.90,   0.28,
04/19 06Z,  99.90,  -3.12,  99.90,  99.90,   0.28,