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
#Sitka, AK : 06/17/2026 10:22:05 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
06/15 18Z,   0.20,  -0.01,   0.26,  99.90,   0.07,
06/15 19Z,   0.20,   2.77,   2.92,  99.90,  -0.05,
06/15 20Z,   0.20,   5.53,   5.66,  99.90,  -0.07,
06/15 21Z,   0.20,   7.66,   7.71,  99.90,  -0.15,
06/15 22Z,   0.20,   8.74,   8.81,  99.90,  -0.13,  (max)
06/15 23Z,   0.20,   8.64,   8.77,  99.90,  -0.07,
06/16 00Z,   0.30,   7.55,   7.74,  99.90,  -0.11,
06/16 01Z,   0.30,   5.91,   6.21,  99.90,   0.00,
06/16 02Z,   0.30,   4.27,   4.63,  99.90,   0.06,
06/16 03Z,   0.30,   3.20,   3.59,  99.90,   0.09,
06/16 04Z,   0.40,   3.09,   3.49,  99.90,   0.00,  (min)
06/16 05Z,   0.40,   4.04,   4.39,  99.90,  -0.05,
06/16 06Z,   0.20,   5.88,   6.16,  99.90,   0.08,
06/16 07Z,   0.20,   8.15,   8.36,  99.90,   0.01,
06/16 08Z,   0.20,  10.24,  10.40,  99.90,  -0.04,
06/16 09Z,   0.20,  11.56,  11.61,  99.90,  -0.15,
06/16 10Z,   0.10,  11.66,  11.73,  99.90,  -0.03,  (max)
06/16 11Z,   0.10,  10.40,  10.40,  99.90,  -0.10,
06/16 12Z,   0.00,   7.92,   7.97,  99.90,   0.05,
06/16 13Z,   0.00,   4.68,   4.69,  99.90,   0.01,
06/16 14Z,   0.00,   1.35,   1.41,  99.90,   0.06,
06/16 15Z,   0.00,  -1.41,  -1.38,  99.90,   0.03,
06/16 16Z,   0.00,  -3.01,  -3.01,  99.90,   0.00,
06/16 17Z,   0.00,  -3.16,  -3.21,  99.90,  -0.05,  (min)
06/16 18Z,  -0.10,  -1.88,  -1.99,  99.90,  -0.01,
06/16 19Z,  -0.10,   0.49,   0.24,  99.90,  -0.15,
06/16 20Z,  -0.10,   3.37,   3.08,  99.90,  -0.19,
06/16 21Z,  -0.10,   6.10,   5.71,  99.90,  -0.29,
06/16 22Z,  -0.10,   8.09,   7.65,  99.90,  -0.34,
06/16 23Z,  -0.10,   8.97,   8.54,  99.90,  -0.33,  (max)
06/17 00Z,  -0.20,   8.66,   8.24,  99.90,  -0.22,
06/17 01Z,  -0.20,   7.38,   7.04,  99.90,  -0.14,
06/17 02Z,  -0.30,   5.63,   5.36,  99.90,   0.03,
06/17 03Z,  -0.30,   3.98,   3.84,  99.90,   0.16,
06/17 04Z,  -0.30,   2.98,   2.79,  99.90,   0.11,
06/17 05Z,  -0.40,   2.99,   2.78,  99.90,   0.19,  (min)
06/17 06Z,  -0.40,   4.06,   3.80,  99.90,   0.14,
06/17 07Z,  -0.40,   5.96,   5.65,  99.90,   0.09,
06/17 08Z,  -0.40,   8.20,   7.84,  99.90,   0.04,
06/17 09Z,  -0.40,  10.19,   9.75,  99.90,  -0.04,
06/17 10Z,  -0.50,  11.34,  10.91,  99.90,   0.07,  (max)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
06/17 11Z,  -0.50,  11.25,  99.90,  10.81,   0.06,
06/17 12Z,  -0.60,   9.82,  99.90,   9.27,   0.05,
06/17 13Z,  -0.60,   7.26,  99.90,   6.70,   0.04,
06/17 14Z,  -0.60,   4.07,  99.90,   3.49,   0.03,
06/17 15Z,  -0.60,   0.89,  99.90,   0.31,   0.01,
06/17 16Z,  -0.60,  -1.60,  99.90,  -2.20,   0.00,
06/17 17Z,  -0.60,  -2.90,  99.90,  -3.51,  -0.01,  (min)
06/17 18Z,  -0.60,  -2.75,  99.90,  -3.38,  -0.02,
06/17 19Z,  -0.70,  -1.25,  99.90,  -1.99,  -0.03,
06/17 20Z,  -0.60,   1.22,  99.90,   0.57,  -0.04,
06/17 21Z,  -0.70,   4.07,  99.90,   3.31,  -0.06,
06/17 22Z,  -0.70,   6.66,  99.90,   5.89,  -0.07,
06/17 23Z,  -0.70,   8.42,  99.90,   7.65,  -0.07,
06/18 00Z,  -0.70,   9.05,  99.90,   8.28,  -0.07,  (max)
06/18 01Z,  -0.70,   8.52,  99.90,   7.76,  -0.07,
06/18 02Z,  -0.70,   7.12,  99.90,   6.35,  -0.07,
06/18 03Z,  -0.70,   5.32,  99.90,   4.56,  -0.07,
06/18 04Z,  -0.80,   3.72,  99.90,   2.85,  -0.07,
06/18 05Z,  -0.80,   2.81,  99.90,   1.94,  -0.07,  (min)
06/18 06Z,  -0.80,   2.90,  99.90,   2.04,  -0.07,
06/18 07Z,  -0.80,   4.01,  99.90,   3.15,  -0.07,
06/18 08Z,  -0.80,   5.88,  99.90,   5.01,  -0.07,
06/18 09Z,  -0.80,   8.00,  99.90,   7.13,  -0.07,
06/18 10Z,  -0.80,   9.80,  99.90,   8.93,  -0.07,
06/18 11Z,  -0.80,  10.75,  99.90,   9.88,  -0.07,  (max)
06/18 12Z,  -0.80,  10.50,  99.90,   9.63,  -0.07,
06/18 13Z,  -0.80,   9.01,  99.90,   8.14,  -0.07,
06/18 14Z,  -0.90,   6.51,  99.90,   5.55,  -0.07,
06/18 15Z,  -0.90,   3.52,  99.90,   2.55,  -0.07,
06/18 16Z,  -0.90,   0.66,  99.90,  -0.31,  -0.07,
06/18 17Z,  -0.90,  -1.47,  99.90,  -2.44,  -0.07,
06/18 18Z,  -0.90,  -2.41,  99.90,  -3.38,  -0.07,  (min)
06/18 19Z,  -0.90,  -2.00,  99.90,  -2.96,  -0.07,
06/18 20Z,  -0.90,  -0.35,  99.90,  -1.32,  -0.07,
06/18 21Z,  -0.80,   2.11,  99.90,   1.24,  -0.07,
06/18 22Z,  -0.80,   4.81,  99.90,   3.95,  -0.07,
06/18 23Z,  -0.80,   7.16,  99.90,   6.29,  -0.07,
06/19 00Z,  -0.70,   8.64,  99.90,   7.88,  -0.07,
06/19 01Z,  -0.70,   9.02,  99.90,   8.25,  -0.07,  (max)
06/19 02Z,  -0.70,   8.32,  99.90,   7.55,  -0.07,
06/19 03Z,  -0.80,   6.84,  99.90,   5.97,  -0.07,
06/19 04Z,  -0.80,   5.06,  99.90,   4.19,  -0.07,
06/19 05Z,  -0.90,   3.53,  99.90,   2.56,  -0.07,
06/19 06Z,  -0.90,   2.70,  99.90,   1.73,  -0.07,  (min)
06/19 07Z,  -0.90,   2.82,  99.90,   1.85,  -0.07,
06/19 08Z,  -0.80,   3.88,  99.90,   3.01,  -0.07,
06/19 09Z,  -0.80,   5.60,  99.90,   4.73,  -0.07,
06/19 10Z,  -0.80,   7.51,  99.90,   6.65,  -0.07,
06/19 11Z,  -0.80,   9.08,  99.90,   8.21,  -0.07,
06/19 12Z,  -0.80,   9.84,  99.90,   8.97,  -0.07,  (max)
06/19 13Z,  -0.80,   9.50,  99.90,   8.63,  -0.07,
06/19 14Z,  -0.80,   8.06,  99.90,   7.19,  -0.07,
06/19 15Z,  -0.80,   5.78,  99.90,   4.91,  -0.07,
06/19 16Z,  -0.80,   3.13,  99.90,   2.27,  -0.07,
06/19 17Z,  -0.80,   0.69,  99.90,  -0.18,  -0.07,
06/19 18Z,  -0.80,  -1.01,  99.90,  -1.88,  -0.07,
06/19 19Z,  -0.80,  -1.60,  99.90,  -2.47,  -0.07,  (min)
06/19 20Z,  -0.80,  -0.97,  99.90,  -1.84,  -0.07,
06/19 21Z,  -0.70,   0.73,  99.90,  -0.04,  -0.07,
06/19 22Z,  -0.70,   3.08,  99.90,   2.31,  -0.07,
06/19 23Z,  -0.60,   5.54,  99.90,   4.88,  -0.07,
06/20 00Z,  -0.60,   7.59,  99.90,   6.92,  -0.07,
06/20 01Z,  -0.60,   8.78,  99.90,   8.12,  -0.07,
06/20 02Z,  -0.60,   8.94,  99.90,   8.27,  -0.07,  (max)
06/20 03Z,  -0.60,   8.11,  99.90,   7.44,  -0.07,
06/20 04Z,  -0.60,   6.60,  99.90,   5.93,  -0.07,
06/20 05Z,  -0.70,   4.86,  99.90,   4.09,  -0.07,
06/20 06Z,  -0.70,   3.40,  99.90,   2.63,  -0.07,
06/20 07Z,  -0.70,   2.60,  99.90,   1.83,  -0.07,  (min)
06/20 08Z,  -0.60,   2.68,  99.90,   2.02,  -0.07,
06/20 09Z,  -0.60,   3.61,  99.90,   2.94,  -0.07,
06/20 10Z,  -0.60,   5.11,  99.90,   4.45,  -0.07,
06/20 11Z,  -0.60,   6.77,  99.90,   6.11,  -0.07,
06/20 12Z,  -0.60,   8.11,  99.90,   7.45,  -0.07,
06/20 13Z,  -0.60,   8.73,  99.90,   8.06,  -0.07,  (max)
06/20 14Z,  -0.60,   8.40,  99.90,   7.74,  -0.07,
06/20 15Z,  -0.60,   7.14,  99.90,   6.47,  -0.07,
06/20 16Z,  -0.60,   5.19,  99.90,   4.52,  -0.07,
06/20 17Z,  -0.60,   2.98,  99.90,   2.31,  -0.07,
06/20 18Z,  -0.60,   1.01,  99.90,   0.34,  -0.07,
06/20 19Z,  -0.60,  -0.26,  99.90,  -0.93,  -0.07,
06/20 20Z,  -0.60,  -0.55,  99.90,  -1.22,  -0.07,  (min)
06/20 21Z,  -0.60,   0.22,  99.90,  -0.45,  -0.07,
06/20 22Z,  -0.50,   1.88,  99.90,   1.31,  -0.07,
06/20 23Z,  -0.50,   4.04,  99.90,   3.47,  -0.07,
06/21 00Z,  -0.50,   6.22,  99.90,   5.65,  -0.07,
06/21 01Z,  99.90,   7.95,  99.90,  99.90,  -0.07,
06/21 02Z,  99.90,   8.87,  99.90,  99.90,  -0.07,
06/21 03Z,  99.90,   8.83,  99.90,  99.90,  -0.07,
06/21 04Z,  99.90,   7.91,  99.90,  99.90,  -0.07,
06/21 05Z,  99.90,   6.40,  99.90,  99.90,  -0.07,
06/21 06Z,  99.90,   4.71,  99.90,  99.90,  -0.07,