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 : 12/15/2025 14:20:55 GMT (units in feet MSL)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/13 18Z,   0.30,   3.53,   3.55,  99.90,  -0.28,  (max)
12/13 19Z,   0.40,   2.39,   2.49,  99.90,  -0.30,
12/13 20Z,   0.50,   0.89,   0.98,  99.90,  -0.41,
12/13 21Z,   0.50,  -0.65,  -0.45,  99.90,  -0.30,
12/13 22Z,   0.60,  -1.88,  -1.60,  99.90,  -0.32,
12/13 23Z,   0.60,  -2.57,  -2.42,  99.90,  -0.45,
12/14 00Z,   0.60,  -2.61,  -2.50,  99.90,  -0.49,  (min)
12/14 01Z,   0.60,  -2.04,  -1.91,  99.90,  -0.47,
12/14 02Z,   0.60,  -1.05,  -0.99,  99.90,  -0.54,
12/14 03Z,   0.60,   0.07,   0.10,  99.90,  -0.57,
12/14 04Z,   0.50,   1.02,   1.14,  99.90,  -0.38,
12/14 05Z,   0.30,   1.56,   1.68,  99.90,  -0.18,
12/14 06Z,   0.40,   1.56,   1.78,  99.90,  -0.18,  (max)
12/14 07Z,   0.40,   1.04,   1.28,  99.90,  -0.16,
12/14 08Z,   0.40,   0.17,   0.52,  99.90,  -0.05,
12/14 09Z,   0.40,  -0.78,  -0.38,  99.90,   0.00,
12/14 10Z,   0.30,  -1.52,  -1.00,  99.90,   0.22,
12/14 11Z,   0.30,  -1.79,  -1.25,  99.90,   0.24,  (min)
12/14 12Z,   0.60,  -1.46,  -0.91,  99.90,  -0.05,
12/14 13Z,   0.70,  -0.55,   0.01,  99.90,  -0.14,
12/14 14Z,   0.70,   0.78,   1.32,  99.90,  -0.16,
12/14 15Z,   0.90,   2.23,   2.75,  99.90,  -0.38,
12/14 16Z,   1.00,   3.46,   4.00,  99.90,  -0.46,
12/14 17Z,   1.00,   4.19,   4.67,  99.90,  -0.52,
12/14 18Z,   1.00,   4.20,   4.70,  99.90,  -0.50,  (max)
12/14 19Z,   1.10,   3.47,   3.99,  99.90,  -0.58,
12/14 20Z,   1.20,   2.12,   2.57,  99.90,  -0.75,
12/14 21Z,   1.20,   0.42,   1.02,  99.90,  -0.60,
12/14 22Z,   1.20,  -1.28,  -0.70,  99.90,  -0.62,
12/14 23Z,   1.30,  -2.62,  -1.87,  99.90,  -0.55,
12/15 00Z,   1.30,  -3.35,  -2.74,  99.90,  -0.69,  (min)
12/15 01Z,   1.40,  -3.36,  -2.58,  99.90,  -0.62,
12/15 02Z,   1.50,  -2.68,  -1.80,  99.90,  -0.62,
12/15 03Z,   1.60,  -1.54,  -0.76,  99.90,  -0.82,
12/15 04Z,   1.60,  -0.22,   0.68,  99.90,  -0.70,
12/15 05Z,   1.60,   0.92,   1.95,  99.90,  -0.57,
12/15 06Z,   1.60,   1.64,   2.70,  99.90,  -0.54,
12/15 07Z,   1.70,   1.79,   2.80,  99.90,  -0.69,  (max)
12/15 08Z,   1.80,   1.39,   2.45,  99.90,  -0.74,
12/15 09Z,   1.90,   0.60,   1.56,  99.90,  -0.94,
12/15 10Z,   1.90,  -0.28,   0.70,  99.90,  -0.92,
12/15 11Z,   1.90,  -0.96,  -0.00,  99.90,  -0.94,
12/15 12Z,   1.80,  -1.18,  -0.30,  99.90,  -0.92,  (min)
12/15 13Z,   1.90,  -0.81,   0.04,  99.90,  -1.05,
12/15 14Z,   1.90,   0.14,   0.91,  99.90,  -1.13,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/15 15Z,   2.00,   1.46,  99.90,   2.39,  -1.07,
12/15 16Z,   2.00,   2.86,  99.90,   3.84,  -1.02,
12/15 17Z,   2.00,   3.98,  99.90,   5.01,  -0.97,
12/15 18Z,   1.90,   4.51,  99.90,   5.50,  -0.91,  (max)
12/15 19Z,   1.80,   4.27,  99.90,   5.22,  -0.86,
12/15 20Z,   1.80,   3.26,  99.90,   4.26,  -0.80,
12/15 21Z,   1.80,   1.64,  99.90,   2.69,  -0.75,
12/15 22Z,   1.70,  -0.28,  99.90,   0.72,  -0.70,
12/15 23Z,   1.70,  -2.11,  99.90,  -1.05,  -0.64,
12/16 00Z,   1.70,  -3.48,  99.90,  -2.37,  -0.59,
12/16 01Z,   1.60,  -4.12,  99.90,  -3.06,  -0.53,  (min)
12/16 02Z,   1.60,  -3.94,  99.90,  -2.82,  -0.48,
12/16 03Z,   1.40,  -3.03,  99.90,  -2.11,  -0.48,
12/16 04Z,   1.30,  -1.63,  99.90,  -0.81,  -0.48,
12/16 05Z,   1.30,  -0.10,  99.90,   0.73,  -0.48,
12/16 06Z,   1.30,   1.21,  99.90,   2.03,  -0.48,
12/16 07Z,   1.20,   2.01,  99.90,   2.73,  -0.48,
12/16 08Z,   1.20,   2.18,  99.90,   2.90,  -0.48,  (max)
12/16 09Z,   1.20,   1.75,  99.90,   2.47,  -0.48,
12/16 10Z,   1.20,   0.93,  99.90,   1.65,  -0.48,
12/16 11Z,   1.10,   0.03,  99.90,   0.65,  -0.48,
12/16 12Z,   1.00,  -0.62,  99.90,  -0.10,  -0.48,
12/16 13Z,   1.00,  -0.76,  99.90,  -0.24,  -0.48,  (min)
12/16 14Z,   1.00,  -0.28,  99.90,   0.24,  -0.48,
12/16 15Z,   0.90,   0.77,  99.90,   1.19,  -0.48,
12/16 16Z,   0.90,   2.14,  99.90,   2.56,  -0.48,
12/16 17Z,   0.80,   3.50,  99.90,   3.82,  -0.48,
12/16 18Z,   0.70,   4.48,  99.90,   4.70,  -0.48,
12/16 19Z,   0.60,   4.76,  99.90,   4.89,  -0.48,  (max)
12/16 20Z,   0.60,   4.21,  99.90,   4.33,  -0.48,
12/16 21Z,   0.50,   2.86,  99.90,   2.88,  -0.48,
12/16 22Z,   0.50,   0.94,  99.90,   0.96,  -0.48,
12/16 23Z,   0.50,  -1.17,  99.90,  -1.15,  -0.48,
12/17 00Z,   0.40,  -3.05,  99.90,  -3.13,  -0.48,
12/17 01Z,   0.40,  -4.33,  99.90,  -4.41,  -0.48,
12/17 02Z,   0.50,  -4.74,  99.90,  -4.72,  -0.48,  (min)
12/17 03Z,   0.40,  -4.25,  99.90,  -4.33,  -0.48,
12/17 04Z,   0.40,  -3.01,  99.90,  -3.09,  -0.48,
12/17 05Z,   0.30,  -1.33,  99.90,  -1.51,  -0.48,
12/17 06Z,   0.30,   0.39,  99.90,   0.21,  -0.48,
12/17 07Z,   0.40,   1.76,  99.90,   1.68,  -0.48,
12/17 08Z,   0.40,   2.52,  99.90,   2.44,  -0.48,
12/17 09Z,   0.50,   2.55,  99.90,   2.58,  -0.48,  (max)
12/17 10Z,   0.50,   1.98,  99.90,   2.00,  -0.48,
12/17 11Z,   0.60,   1.04,  99.90,   1.16,  -0.48,
12/17 12Z,   0.60,   0.11,  99.90,   0.23,  -0.48,
12/17 13Z,   0.70,  -0.48,  99.90,  -0.26,  -0.48,
12/17 14Z,   0.70,  -0.48,  99.90,  -0.26,  -0.48,  (min)
12/17 15Z,   0.60,   0.18,  99.90,   0.30,  -0.48,
12/17 16Z,   0.60,   1.38,  99.90,   1.50,  -0.48,
12/17 17Z,   0.40,   2.83,  99.90,   2.75,  -0.48,
12/17 18Z,   0.40,   4.13,  99.90,   4.05,  -0.48,
12/17 19Z,   0.40,   4.91,  99.90,   4.83,  -0.48,  (max)
12/17 20Z,   0.40,   4.89,  99.90,   4.81,  -0.48,
12/17 21Z,   0.40,   3.96,  99.90,   3.89,  -0.48,
12/17 22Z,   0.50,   2.25,  99.90,   2.27,  -0.48,
12/17 23Z,   0.40,   0.06,  99.90,  -0.02,  -0.48,
12/18 00Z,   0.40,  -2.18,  99.90,  -2.26,  -0.48,
12/18 01Z,   0.40,  -4.00,  99.90,  -4.08,  -0.48,
12/18 02Z,   0.40,  -5.05,  99.90,  -5.13,  -0.48,  (min)
12/18 03Z,   0.50,  -5.11,  99.90,  -5.09,  -0.48,
12/18 04Z,   0.40,  -4.23,  99.90,  -4.31,  -0.48,
12/18 05Z,   0.30,  -2.63,  99.90,  -2.81,  -0.48,
12/18 06Z,   0.30,  -0.71,  99.90,  -0.89,  -0.48,
12/18 07Z,   0.30,   1.10,  99.90,   0.92,  -0.48,
12/18 08Z,   0.30,   2.41,  99.90,   2.23,  -0.48,
12/18 09Z,   0.20,   2.98,  99.90,   2.70,  -0.48,  (max)
12/18 10Z,   0.20,   2.78,  99.90,   2.50,  -0.48,
12/18 11Z,   0.30,   1.99,  99.90,   1.81,  -0.48,
12/18 12Z,   0.40,   0.92,  99.90,   0.85,  -0.48,
12/18 13Z,   0.50,  -0.01,  99.90,   0.01,  -0.48,
12/18 14Z,   0.40,  -0.48,  99.90,  -0.55,  -0.48,  (min)
12/18 15Z,   0.40,  -0.26,  99.90,  -0.34,  -0.48,
12/18 16Z,   0.40,   0.63,  99.90,   0.55,  -0.48,
12/18 17Z,   0.40,   2.01,  99.90,   1.93,  -0.48,
12/18 18Z,   0.40,   3.51,  99.90,   3.43,  -0.48,
12/18 19Z,   0.30,   4.71,  99.90,   4.53,  -0.48,
12/18 20Z,   0.40,   5.22,  99.90,   5.14,  -0.48,  (max)
12/18 21Z,   0.40,   4.83,  99.90,   4.75,  -0.48,
12/18 22Z,   0.50,   3.49,  99.90,   3.52,  -0.48,
12/18 23Z,   0.60,   1.43,  99.90,   1.56,  -0.48,
12/19 00Z,   0.60,  -0.96,  99.90,  -0.84,  -0.48,
12/19 01Z,   0.60,  -3.21,  99.90,  -3.09,  -0.48,
12/19 02Z,   0.60,  -4.85,  99.90,  -4.73,  -0.48,
12/19 03Z,   0.60,  -5.54,  99.90,  -5.42,  -0.48,  (min)
12/19 04Z,   0.50,  -5.18,  99.90,  -5.16,  -0.48,
12/19 05Z,   0.40,  -3.88,  99.90,  -3.96,  -0.48,
12/19 06Z,   0.40,  -1.97,  99.90,  -2.05,  -0.48,