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
#Elfin Cove, AK : 05/18/2026 11:22:04 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/16 12Z,  -0.60,   4.62,   3.22,  99.90,  -0.80,
05/16 13Z,  -0.60,   1.29,  -0.10,  99.90,  -0.79,
05/16 14Z,  -0.60,  -1.18,  -2.56,  99.90,  -0.78,
05/16 15Z,  -0.60,  -2.33,  -3.75,  99.90,  -0.82,  (min)
05/16 16Z,  -0.60,  -1.93,  -3.39,  99.90,  -0.86,
05/16 17Z,  -0.50,  -0.14,  -1.58,  99.90,  -0.94,
05/16 18Z,  -0.50,   2.58,   1.05,  99.90,  -1.03,
05/16 19Z,  -0.50,   5.58,   4.02,  99.90,  -1.06,
05/16 20Z,  -0.60,   8.18,   6.45,  99.90,  -1.13,
05/16 21Z,  -0.60,   9.81,   8.06,  99.90,  -1.15,
05/16 22Z,  -0.60,  10.10,   8.34,  99.90,  -1.16,  (max)
05/16 23Z,  -0.60,   9.07,   7.26,  99.90,  -1.21,
05/17 00Z,  -0.70,   7.19,   5.33,  99.90,  -1.16,
05/17 01Z,  -0.70,   5.13,   3.33,  99.90,  -1.10,
05/17 02Z,  -0.70,   3.51,   1.65,  99.90,  -1.16,
05/17 03Z,  -0.70,   2.81,   1.00,  99.90,  -1.11,  (min)
05/17 04Z,  -0.60,   3.31,   1.49,  99.90,  -1.22,
05/17 05Z,  -0.70,   4.94,   3.26,  99.90,  -0.98,
05/17 06Z,  -0.70,   7.37,   5.75,  99.90,  -0.92,
05/17 07Z,  -0.70,   9.98,   8.45,  99.90,  -0.83,
05/17 08Z,  -0.70,  12.12,  10.55,  99.90,  -0.87,
05/17 09Z,  -0.70,  13.15,  11.63,  99.90,  -0.82,  (max)
05/17 10Z,  -0.60,  12.67,  11.04,  99.90,  -1.03,
05/17 11Z,  -0.50,  10.58,   8.91,  99.90,  -1.17,
05/17 12Z,  -0.60,   7.32,   5.54,  99.90,  -1.18,
05/17 13Z,  -0.70,   3.63,   1.94,  99.90,  -0.99,
05/17 14Z,  -0.80,   0.29,  -1.33,  99.90,  -0.82,
05/17 15Z,  -0.70,  -2.03,  -3.65,  99.90,  -0.92,
05/17 16Z,  -0.50,  -2.89,  -4.44,  99.90,  -1.05,  (min)
05/17 17Z,  -0.40,  -2.16,  -3.71,  99.90,  -1.15,
05/17 18Z,  -0.60,  -0.07,  -1.53,  99.90,  -0.86,
05/17 19Z,  -0.60,   2.87,   1.42,  99.90,  -0.85,
05/17 20Z,  -0.60,   5.97,   4.48,  99.90,  -0.89,
05/17 21Z,  -0.50,   8.53,   6.94,  99.90,  -1.09,
05/17 22Z,  -0.40,  10.00,   8.38,  99.90,  -1.22,
05/17 23Z,  -0.40,  10.06,   8.43,  99.90,  -1.23,  (max)
05/18 00Z,  -0.60,   8.86,   7.25,  99.90,  -1.01,
05/18 01Z,  -0.60,   6.94,   5.30,  99.90,  -1.04,
05/18 02Z,  -0.60,   4.96,   3.40,  99.90,  -0.96,
05/18 03Z,  -0.60,   3.51,   1.96,  99.90,  -0.95,
05/18 04Z,  -0.50,   3.05,   1.57,  99.90,  -0.98,  (min)
05/18 05Z,  -0.40,   3.78,   2.46,  99.90,  -0.92,
05/18 06Z,  -0.40,   5.58,   4.36,  99.90,  -0.82,
05/18 07Z,  -0.30,   8.07,   6.99,  99.90,  -0.78,
05/18 08Z,  -0.30,  10.62,   9.53,  99.90,  -0.79,
05/18 09Z,  -0.30,  12.54,  11.48,  99.90,  -0.76,
05/18 10Z,  -0.40,  13.26,  12.13,  99.90,  -0.73,  (max)
05/18 11Z,  -0.40,  12.38,  11.13,  99.90,  -0.85,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/18 12Z,  -0.50,   9.97,  99.90,   8.60,  -0.87,
05/18 13Z,  -0.50,   6.54,  99.90,   5.15,  -0.89,
05/18 14Z,  -0.60,   2.86,  99.90,   1.35,  -0.91,
05/18 15Z,  -0.50,  -0.33,  99.90,  -1.75,  -0.93,
05/18 16Z,  -0.50,  -2.39,  99.90,  -3.84,  -0.95,
05/18 17Z,  -0.40,  -2.96,  99.90,  -4.33,  -0.96,  (min)
05/18 18Z,  -0.40,  -1.98,  99.90,  -3.36,  -0.98,
05/18 19Z,  -0.30,   0.29,  99.90,  -1.01,  -1.00,
05/18 20Z,  -0.40,   3.30,  99.90,   1.88,  -1.02,
05/18 21Z,  -0.30,   6.35,  99.90,   5.01,  -1.04,
05/18 22Z,  -0.30,   8.75,  99.90,   7.39,  -1.06,
05/18 23Z,  -0.20,   9.99,  99.90,   8.71,  -1.08,  (max)
05/19 00Z,  -0.20,   9.85,  99.90,   8.58,  -1.08,
05/19 01Z,  -0.20,   8.57,  99.90,   7.29,  -1.08,
05/19 02Z,  -0.30,   6.70,  99.90,   5.32,  -1.08,
05/19 03Z,  -0.30,   4.86,  99.90,   3.49,  -1.08,
05/19 04Z,  -0.40,   3.61,  99.90,   2.14,  -1.08,
05/19 05Z,  -0.40,   3.34,  99.90,   1.87,  -1.08,  (min)
05/19 06Z,  -0.40,   4.20,  99.90,   2.73,  -1.08,
05/19 07Z,  -0.40,   6.05,  99.90,   4.58,  -1.08,
05/19 08Z,  -0.30,   8.48,  99.90,   7.11,  -1.08,
05/19 09Z,  -0.40,  10.86,  99.90,   9.39,  -1.08,
05/19 10Z,  -0.30,  12.53,  99.90,  11.15,  -1.08,
05/19 11Z,  -0.30,  12.93,  99.90,  11.56,  -1.08,  (max)
05/19 12Z,  -0.40,  11.80,  99.90,  10.33,  -1.08,
05/19 13Z,  -0.40,   9.27,  99.90,   7.80,  -1.08,
05/19 14Z,  -0.50,   5.89,  99.90,   4.31,  -1.08,
05/19 15Z,  -0.50,   2.39,  99.90,   0.82,  -1.08,
05/19 16Z,  -0.50,  -0.52,  99.90,  -2.09,  -1.08,
05/19 17Z,  -0.50,  -2.29,  99.90,  -3.86,  -1.08,
05/19 18Z,  -0.60,  -2.61,  99.90,  -4.28,  -1.08,  (min)
05/19 19Z,  -0.60,  -1.46,  99.90,  -3.14,  -1.08,
05/19 20Z,  -0.60,   0.86,  99.90,  -0.81,  -1.08,
05/19 21Z,  -0.60,   3.80,  99.90,   2.12,  -1.08,
05/19 22Z,  -0.60,   6.66,  99.90,   4.99,  -1.08,
05/19 23Z,  -0.60,   8.82,  99.90,   7.15,  -1.08,
05/20 00Z,  -0.50,   9.84,  99.90,   8.26,  -1.08,  (max)
05/20 01Z,  -0.50,   9.58,  99.90,   8.00,  -1.08,
05/20 02Z,  -0.60,   8.30,  99.90,   6.63,  -1.08,
05/20 03Z,  -0.60,   6.55,  99.90,   4.87,  -1.08,
05/20 04Z,  -0.60,   4.88,  99.90,   3.21,  -1.08,
05/20 05Z,  -0.60,   3.79,  99.90,   2.12,  -1.08,
05/20 06Z,  -0.60,   3.63,  99.90,   1.96,  -1.08,  (min)
05/20 07Z,  -0.60,   4.51,  99.90,   2.84,  -1.08,
05/20 08Z,  -0.50,   6.29,  99.90,   4.72,  -1.08,
05/20 09Z,  -0.50,   8.56,  99.90,   6.98,  -1.08,
05/20 10Z,  -0.60,  10.68,  99.90,   9.01,  -1.08,
05/20 11Z,  -0.60,  12.07,  99.90,  10.39,  -1.08,
05/20 12Z,  -0.60,  12.25,  99.90,  10.58,  -1.08,  (max)
05/20 13Z,  -0.60,  11.03,  99.90,   9.36,  -1.08,
05/20 14Z,  -0.50,   8.58,  99.90,   7.00,  -1.08,
05/20 15Z,  -0.50,   5.43,  99.90,   3.85,  -1.08,
05/20 16Z,  -0.60,   2.25,  99.90,   0.58,  -1.08,
05/20 17Z,  -0.40,  -0.32,  99.90,  -1.79,  -1.08,
05/20 18Z,  -0.30,  -1.81,  99.90,  -3.18,  -1.08,
05/20 19Z,  -0.30,  -1.94,  99.90,  -3.32,  -1.08,  (min)
05/20 20Z,  -0.20,  -0.72,  99.90,  -2.00,  -1.08,
05/20 21Z,  -0.20,   1.54,  99.90,   0.27,  -1.08,
05/20 22Z,  -0.20,   4.29,  99.90,   3.02,  -1.08,
05/20 23Z,  -0.10,   6.90,  99.90,   5.72,  -1.08,
05/21 00Z,   0.00,   8.81,  99.90,   7.74,  -1.08,
05/21 01Z,   0.00,   9.67,  99.90,   8.59,  -1.08,  (max)
05/21 02Z,   0.00,   9.36,  99.90,   8.28,  -1.08,
05/21 03Z,   0.00,   8.15,  99.90,   7.08,  -1.08,
05/21 04Z,  -0.10,   6.54,  99.90,   5.36,  -1.08,
05/21 05Z,  -0.20,   5.01,  99.90,   3.74,  -1.08,
05/21 06Z,  -0.20,   4.01,  99.90,   2.73,  -1.08,
05/21 07Z,  -0.30,   3.85,  99.90,   2.47,  -1.08,  (min)
05/21 08Z,  -0.30,   4.64,  99.90,   3.26,  -1.08,
05/21 09Z,  -0.40,   6.24,  99.90,   4.77,  -1.08,
05/21 10Z,  -0.30,   8.25,  99.90,   6.87,  -1.08,
05/21 11Z,  -0.40,  10.09,  99.90,   8.62,  -1.08,
05/21 12Z,  -0.40,  11.26,  99.90,   9.78,  -1.08,
05/21 13Z,  -0.40,  11.35,  99.90,   9.87,  -1.08,  (max)
05/21 14Z,  -0.50,  10.20,  99.90,   8.62,  -1.08,
05/21 15Z,  -0.50,   7.98,  99.90,   6.40,  -1.08,
05/21 16Z,  -0.60,   5.18,  99.90,   3.50,  -1.08,
05/21 17Z,  -0.60,   2.40,  99.90,   0.72,  -1.08,
05/21 18Z,  -0.60,   0.17,  99.90,  -1.51,  -1.08,
05/21 19Z,  -0.60,  -1.07,  99.90,  -2.75,  -1.08,
05/21 20Z,  -0.60,  -1.08,  99.90,  -2.75,  -1.08,  (min)
05/21 21Z,  -0.60,   0.13,  99.90,  -1.54,  -1.08,
05/21 22Z,  -0.60,   2.25,  99.90,   0.58,  -1.08,
05/21 23Z,  -0.50,   4.76,  99.90,   3.18,  -1.08,
05/22 00Z,  -0.60,   7.10,  99.90,   5.43,  -1.08,