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 : 04/12/2026 03:21:10 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/10 12Z,  -0.60,   7.07,   5.89,  99.90,  -0.58,
04/10 13Z,  -0.60,   7.87,   6.59,  99.90,  -0.68,
04/10 14Z,  -0.60,   8.44,   7.04,  99.90,  -0.80,
04/10 15Z,  -0.60,   8.62,   7.11,  99.90,  -0.91,  (max)
04/10 16Z,  -0.60,   8.29,   6.64,  99.90,  -1.05,
04/10 17Z,  -0.60,   7.44,   5.70,  99.90,  -1.14,
04/10 18Z,  -0.50,   6.20,   4.50,  99.90,  -1.20,
04/10 19Z,  -0.50,   4.82,   3.20,  99.90,  -1.12,
04/10 20Z,  -0.60,   3.56,   2.00,  99.90,  -0.96,
04/10 21Z,  -0.60,   2.62,   1.14,  99.90,  -0.88,
04/10 22Z,  -0.60,   2.16,   0.79,  99.90,  -0.77,  (min)
04/10 23Z,  -0.50,   2.26,   0.93,  99.90,  -0.83,
04/11 00Z,  -0.50,   2.88,   1.56,  99.90,  -0.82,
04/11 01Z,  -0.50,   3.89,   2.55,  99.90,  -0.84,
04/11 02Z,  -0.50,   5.03,   3.65,  99.90,  -0.88,
04/11 03Z,  -0.50,   6.11,   4.70,  99.90,  -0.91,
04/11 04Z,  -0.50,   6.92,   5.44,  99.90,  -0.98,
04/11 05Z,  -0.50,   7.33,   5.87,  99.90,  -0.96,
04/11 06Z,  -0.40,   7.28,   5.89,  99.90,  -0.99,  (max)
04/11 07Z,  -0.50,   6.88,   5.56,  99.90,  -0.82,
04/11 08Z,  -0.50,   6.30,   5.07,  99.90,  -0.73,
04/11 09Z,  -0.50,   5.74,   4.53,  99.90,  -0.71,
04/11 10Z,  -0.50,   5.37,   4.30,  99.90,  -0.57,
04/11 11Z,  -0.50,   5.34,   4.29,  99.90,  -0.55,  (min)
04/11 12Z,  -0.40,   5.74,   4.61,  99.90,  -0.73,
04/11 13Z,  -0.40,   6.48,   5.24,  99.90,  -0.84,
04/11 14Z,  -0.50,   7.35,   6.01,  99.90,  -0.84,
04/11 15Z,  -0.50,   8.09,   6.63,  99.90,  -0.96,
04/11 16Z,  -0.40,   8.50,   6.93,  99.90,  -1.17,  (max)
04/11 17Z,  -0.40,   8.40,   6.74,  99.90,  -1.26,
04/11 18Z,  -0.40,   7.70,   6.00,  99.90,  -1.30,
04/11 19Z,  -0.40,   6.52,   4.91,  99.90,  -1.21,
04/11 20Z,  -0.40,   5.10,   3.59,  99.90,  -1.11,
04/11 21Z,  -0.40,   3.71,   2.26,  99.90,  -1.05,
04/11 22Z,  -0.40,   2.59,   1.25,  99.90,  -0.94,
04/11 23Z,  -0.40,   1.97,   0.66,  99.90,  -0.91,  (min)
04/12 00Z,  -0.40,   1.99,   0.72,  99.90,  -0.87,
04/12 01Z,  -0.40,   2.67,   1.39,  99.90,  -0.88,
04/12 02Z,  -0.30,   3.83,   2.55,  99.90,  -0.98,
04/12 03Z,  -0.30,   5.21,   3.92,  99.90,  -0.99,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/12 04Z,  -0.30,   6.54,  99.90,   5.25,  -0.99,
04/12 05Z,  -0.30,   7.55,  99.90,   6.27,  -0.99,
04/12 06Z,  -0.20,   8.03,  99.90,   6.84,  -0.99,  (max)
04/12 07Z,  -0.20,   7.88,  99.90,   6.69,  -0.99,
04/12 08Z,  -0.20,   7.24,  99.90,   6.06,  -0.99,
04/12 09Z,  -0.20,   6.34,  99.90,   5.16,  -0.99,
04/12 10Z,  -0.20,   5.41,  99.90,   4.23,  -0.99,
04/12 11Z,  -0.20,   4.73,  99.90,   3.54,  -0.99,
04/12 12Z,  -0.20,   4.53,  99.90,   3.34,  -0.98,  (min)
04/12 13Z,  -0.20,   4.93,  99.90,   3.74,  -0.98,
04/12 14Z,  -0.20,   5.82,  99.90,   4.64,  -0.98,
04/12 15Z,  -0.30,   6.96,  99.90,   5.68,  -0.98,
04/12 16Z,  -0.30,   8.03,  99.90,   6.74,  -0.98,
04/12 17Z,  -0.40,   8.73,  99.90,   7.34,  -0.98,
04/12 18Z,  -0.30,   8.80,  99.90,   7.52,  -0.98,  (max)
04/12 19Z,  -0.30,   8.12,  99.90,   6.84,  -0.98,
04/12 20Z,  -0.20,   6.83,  99.90,   5.65,  -0.98,
04/12 21Z,  -0.10,   5.21,  99.90,   4.13,  -0.98,
04/12 22Z,   0.00,   3.58,  99.90,   2.59,  -0.98,
04/12 23Z,   0.00,   2.26,  99.90,   1.28,  -0.98,
04/13 00Z,   0.00,   1.58,  99.90,   0.59,  -0.98,  (min)
04/13 01Z,   0.00,   1.71,  99.90,   0.73,  -0.98,
04/13 02Z,   0.00,   2.64,  99.90,   1.66,  -0.98,
04/13 03Z,   0.00,   4.14,  99.90,   3.16,  -0.98,
04/13 04Z,   0.00,   5.86,  99.90,   4.88,  -0.98,
04/13 05Z,   0.00,   7.45,  99.90,   6.47,  -0.98,
04/13 06Z,   0.00,   8.55,  99.90,   7.57,  -0.98,
04/13 07Z,  -0.10,   8.88,  99.90,   7.79,  -0.98,  (max)
04/13 08Z,   0.00,   8.39,  99.90,   7.41,  -0.98,
04/13 09Z,   0.00,   7.30,  99.90,   6.32,  -0.98,
04/13 10Z,   0.00,   5.90,  99.90,   4.92,  -0.98,
04/13 11Z,   0.10,   4.54,  99.90,   3.66,  -0.98,
04/13 12Z,   0.10,   3.62,  99.90,   2.73,  -0.98,
04/13 13Z,   0.10,   3.42,  99.90,   2.54,  -0.98,  (min)
04/13 14Z,   0.10,   4.03,  99.90,   3.15,  -0.98,
04/13 15Z,   0.10,   5.28,  99.90,   4.40,  -0.98,
04/13 16Z,   0.10,   6.84,  99.90,   5.95,  -0.98,
04/13 17Z,   0.10,   8.28,  99.90,   7.40,  -0.98,
04/13 18Z,   0.10,   9.23,  99.90,   8.34,  -0.98,
04/13 19Z,   0.10,   9.34,  99.90,   8.46,  -0.98,  (max)
04/13 20Z,   0.10,   8.53,  99.90,   7.64,  -0.98,
04/13 21Z,   0.10,   6.98,  99.90,   6.09,  -0.98,
04/13 22Z,   0.10,   5.05,  99.90,   4.17,  -0.98,
04/13 23Z,   0.10,   3.16,  99.90,   2.28,  -0.98,
04/14 00Z,   0.10,   1.76,  99.90,   0.88,  -0.98,
04/14 01Z,   0.10,   1.20,  99.90,   0.32,  -0.98,  (min)
04/14 02Z,   0.10,   1.65,  99.90,   0.77,  -0.98,
04/14 03Z,   0.00,   3.00,  99.90,   2.02,  -0.98,
04/14 04Z,   0.00,   4.93,  99.90,   3.95,  -0.98,
04/14 05Z,   0.00,   7.00,  99.90,   6.02,  -0.98,
04/14 06Z,  -0.10,   8.73,  99.90,   7.65,  -0.98,
04/14 07Z,  -0.10,   9.70,  99.90,   8.62,  -0.98,  (max)
04/14 08Z,  -0.10,   9.64,  99.90,   8.56,  -0.98,
04/14 09Z,  -0.10,   8.59,  99.90,   7.51,  -0.98,
04/14 10Z,  -0.10,   6.87,  99.90,   5.79,  -0.98,
04/14 11Z,  -0.10,   4.91,  99.90,   3.83,  -0.98,
04/14 12Z,  -0.10,   3.20,  99.90,   2.12,  -0.98,
04/14 13Z,  -0.10,   2.22,  99.90,   1.13,  -0.98,  (min)
04/14 14Z,  -0.10,   2.23,  99.90,   1.14,  -0.98,
04/14 15Z,  -0.10,   3.24,  99.90,   2.15,  -0.98,
04/14 16Z,  -0.10,   4.98,  99.90,   3.90,  -0.98,
04/14 17Z,  -0.20,   7.01,  99.90,   5.83,  -0.98,
04/14 18Z,  -0.20,   8.79,  99.90,   7.61,  -0.98,
04/14 19Z,  -0.30,   9.85,  99.90,   8.57,  -0.98,
04/14 20Z,  -0.30,   9.86,  99.90,   8.58,  -0.98,  (max)
04/14 21Z,  -0.30,   8.77,  99.90,   7.48,  -0.98,
04/14 22Z,  -0.30,   6.86,  99.90,   5.58,  -0.98,
04/14 23Z,  -0.20,   4.63,  99.90,   3.44,  -0.98,
04/15 00Z,  -0.20,   2.60,  99.90,   1.42,  -0.98,
04/15 01Z,  -0.20,   1.30,  99.90,   0.11,  -0.98,
04/15 02Z,  -0.10,   1.06,  99.90,  -0.02,  -0.98,  (min)
04/15 03Z,  -0.10,   1.97,  99.90,   0.89,  -0.98,
04/15 04Z,  -0.10,   3.83,  99.90,   2.75,  -0.98,
04/15 05Z,  -0.10,   6.19,  99.90,   5.11,  -0.98,
04/15 06Z,  -0.10,   8.48,  99.90,   7.39,  -0.98,
04/15 07Z,  -0.20,  10.15,  99.90,   8.96,  -0.98,
04/15 08Z,  -0.20,  10.75,  99.90,   9.57,  -0.98,  (max)
04/15 09Z,  -0.10,  10.08,  99.90,   9.00,  -0.98,
04/15 10Z,  -0.10,   8.32,  99.90,   7.23,  -0.98,
04/15 11Z,  -0.10,   5.92,  99.90,   4.83,  -0.98,
04/15 12Z,  -0.10,   3.48,  99.90,   2.40,  -0.98,
04/15 13Z,  -0.10,   1.61,  99.90,   0.52,  -0.98,
04/15 14Z,  -0.10,   0.76,  99.90,  -0.32,  -0.98,  (min)
04/15 15Z,  -0.10,   1.16,  99.90,   0.07,  -0.98,
04/15 16Z,  -0.20,   2.69,  99.90,   1.51,  -0.98,
04/15 17Z,  -0.20,   4.98,  99.90,   3.80,  -0.98,
04/15 18Z,  -0.20,   7.42,  99.90,   6.24,  -0.98,
04/15 19Z,  99.90,   9.42,  99.90,  99.90,  -0.98,
04/15 20Z,  99.90,  10.45,  99.90,  99.90,  -0.98,
04/15 21Z,  99.90,  10.20,  99.90,  99.90,  -0.98,
04/15 22Z,  99.90,   8.74,  99.90,  99.90,  -0.98,
04/15 23Z,  99.90,   6.48,  99.90,  99.90,  -0.98,
04/16 00Z,  99.90,   4.06,  99.90,  99.90,  -0.98,