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
#Alitak, AK : 05/10/2026 17:22:44 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/09 00Z,  -0.40, -11.67, -11.45,  99.90,   0.62,
05/09 01Z,  -0.40, -10.13,  -9.81,  99.90,   0.72,
05/09 02Z,  -0.30,  -8.59,  -8.30,  99.90,   0.59,
05/09 03Z,  -0.20,  -7.50,  -7.22,  99.90,   0.48,
05/09 04Z,  -0.20,  -7.11,  -6.78,  99.90,   0.53,  (max)
05/09 05Z,  -0.20,  -7.27,  -6.91,  99.90,   0.56,
05/09 06Z,  -0.10,  -7.79,  -7.50,  99.90,   0.39,
05/09 07Z,  -0.10,  -8.50,  -8.14,  99.90,   0.46,
05/09 08Z,   0.00,  -9.18,  -8.80,  99.90,   0.38,
05/09 09Z,   0.00,  -9.58,  -9.20,  99.90,   0.38,
05/09 10Z,   0.00,  -9.54,  -9.26,  99.90,   0.28,  (min)
05/09 11Z,   0.00,  -9.04,  -8.84,  99.90,   0.20,
05/09 12Z,   0.10,  -8.28,  -8.04,  99.90,   0.14,
05/09 13Z,   0.10,  -7.43,  -7.37,  99.90,  -0.04,
05/09 14Z,   0.10,  -6.65,  -6.57,  99.90,  -0.02,
05/09 15Z,   0.10,  -6.24,  -6.06,  99.90,   0.08,  (max)
05/09 16Z,   0.10,  -6.47,  -6.23,  99.90,   0.14,
05/09 17Z,   0.10,  -7.27,  -6.87,  99.90,   0.30,
05/09 18Z,   0.20,  -8.45,  -8.05,  99.90,   0.20,
05/09 19Z,   0.20,  -9.84,  -9.63,  99.90,   0.01,
05/09 20Z,   0.20, -11.28, -11.12,  99.90,  -0.04,
05/09 21Z,   0.20, -12.50, -12.21,  99.90,   0.09,
05/09 22Z,   0.20, -13.23, -12.81,  99.90,   0.22,  (min)
05/09 23Z,   0.20, -13.25, -12.72,  99.90,   0.33,
05/10 00Z,   0.30, -12.60, -12.19,  99.90,   0.11,
05/10 01Z,   0.40, -11.45, -10.95,  99.90,   0.10,
05/10 02Z,   0.30,  -9.95,  -9.51,  99.90,   0.14,
05/10 03Z,   0.30,  -8.42,  -8.03,  99.90,   0.09,
05/10 04Z,   0.30,  -7.32,  -6.96,  99.90,   0.06,
05/10 05Z,   0.30,  -6.87,  -6.42,  99.90,   0.15,  (max)
05/10 06Z,   0.40,  -6.96,  -6.62,  99.90,  -0.06,
05/10 07Z,   0.40,  -7.47,  -7.20,  99.90,  -0.13,
05/10 08Z,   0.40,  -8.25,  -8.00,  99.90,  -0.15,
05/10 09Z,   0.40,  -9.09,  -8.70,  99.90,  -0.01,
05/10 10Z,   0.30,  -9.73,  -9.40,  99.90,   0.03,
05/10 11Z,   0.20,  -9.93,  -9.69,  99.90,   0.04,  (min)
05/10 12Z,   0.30,  -9.67,  -9.52,  99.90,  -0.15,
05/10 13Z,   0.30,  -9.07,  -8.93,  99.90,  -0.16,
05/10 14Z,   0.20,  -8.27,  -8.21,  99.90,  -0.14,
05/10 15Z,   0.10,  -7.40,  -7.45,  99.90,  -0.15,
05/10 16Z,   0.00,  -6.80,  -6.85,  99.90,  -0.05,
05/10 17Z,   0.00,  -6.78,  -6.81,  99.90,  -0.03,  (max)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/10 18Z,   0.00,  -7.33,  99.90,  -7.34,  -0.01,
05/10 19Z,   0.00,  -8.30,  99.90,  -8.29,   0.01,
05/10 20Z,  -0.10,  -9.59,  99.90,  -9.66,   0.03,
05/10 21Z,  -0.10, -11.01,  99.90, -11.07,   0.05,
05/10 22Z,  -0.10, -12.28,  99.90, -12.32,   0.06,
05/10 23Z,  -0.10, -13.05,  99.90, -13.07,   0.08,
05/11 00Z,  -0.10, -13.10,  99.90, -13.10,   0.10,  (min)
05/11 01Z,  -0.10, -12.45,  99.90, -12.43,   0.12,
05/11 02Z,  -0.10, -11.23,  99.90, -11.19,   0.14,
05/11 03Z,  -0.10,  -9.59,  99.90,  -9.54,   0.15,
05/11 04Z,  -0.20,  -7.91,  99.90,  -7.94,   0.17,
05/11 05Z,  -0.20,  -6.70,  99.90,  -6.71,   0.19,
05/11 06Z,  -0.20,  -6.20,  99.90,  -6.21,   0.19,  (max)
05/11 07Z,  -0.20,  -6.33,  99.90,  -6.34,   0.19,
05/11 08Z,  -0.30,  -7.02,  99.90,  -7.13,   0.19,
05/11 09Z,  -0.20,  -8.11,  99.90,  -8.12,   0.19,
05/11 10Z,  -0.20,  -9.34,  99.90,  -9.35,   0.19,
05/11 11Z,  -0.30, -10.35,  99.90, -10.46,   0.19,
05/11 12Z,  -0.30, -10.85,  99.90, -10.96,   0.19,  (min)
05/11 13Z,  -0.30, -10.78,  99.90, -10.89,   0.19,
05/11 14Z,  -0.40, -10.21,  99.90, -10.42,   0.19,
05/11 15Z,  -0.40,  -9.22,  99.90,  -9.43,   0.19,
05/11 16Z,  -0.40,  -8.01,  99.90,  -8.22,   0.19,
05/11 17Z,  -0.40,  -7.05,  99.90,  -7.26,   0.19,
05/11 18Z,  -0.40,  -6.71,  99.90,  -6.92,   0.19,  (max)
05/11 19Z,  -0.50,  -7.01,  99.90,  -7.32,   0.19,
05/11 20Z,  -0.50,  -7.88,  99.90,  -8.19,   0.19,
05/11 21Z,  -0.50,  -9.22,  99.90,  -9.53,   0.19,
05/11 22Z,  -0.50, -10.78,  99.90, -11.09,   0.19,
05/11 23Z,  -0.60, -12.17,  99.90, -12.58,   0.19,
05/12 00Z,  -0.60, -13.00,  99.90, -13.41,   0.19,
05/12 01Z,  -0.70, -13.02,  99.90, -13.53,   0.19,  (min)
05/12 02Z,  -0.70, -12.26,  99.90, -12.77,   0.19,
05/12 03Z,  -0.80, -10.82,  99.90, -11.43,   0.19,
05/12 04Z,  -0.80,  -8.90,  99.90,  -9.51,   0.19,
05/12 05Z,  -0.80,  -7.00,  99.90,  -7.61,   0.19,
05/12 06Z,  -0.80,  -5.69,  99.90,  -6.30,   0.19,
05/12 07Z,  -0.70,  -5.22,  99.90,  -5.73,   0.19,  (max)
05/12 08Z,  -0.60,  -5.57,  99.90,  -5.98,   0.19,
05/12 09Z,  -0.60,  -6.66,  99.90,  -7.07,   0.19,
05/12 10Z,  -0.50,  -8.28,  99.90,  -8.59,   0.19,
05/12 11Z,  -0.50, -10.04,  99.90, -10.35,   0.19,
05/12 12Z,  -0.50, -11.47,  99.90, -11.78,   0.19,
05/12 13Z,  -0.50, -12.24,  99.90, -12.55,   0.19,  (min)
05/12 14Z,  -0.50, -12.21,  99.90, -12.52,   0.19,
05/12 15Z,  -0.50, -11.46,  99.90, -11.77,   0.19,
05/12 16Z,  -0.50, -10.06,  99.90, -10.37,   0.19,
05/12 17Z,  -0.50,  -8.36,  99.90,  -8.67,   0.19,
05/12 18Z,  -0.50,  -6.95,  99.90,  -7.26,   0.19,
05/12 19Z,  -0.50,  -6.28,  99.90,  -6.59,   0.19,  (max)
05/12 20Z,  -0.40,  -6.41,  99.90,  -6.62,   0.19,
05/12 21Z,  -0.40,  -7.32,  99.90,  -7.53,   0.19,
05/12 22Z,  -0.40,  -8.85,  99.90,  -9.06,   0.19,
05/12 23Z,  -0.40, -10.63,  99.90, -10.84,   0.19,
05/13 00Z,  -0.50, -12.17,  99.90, -12.48,   0.19,
05/13 01Z,  -0.50, -13.01,  99.90, -13.32,   0.19,
05/13 02Z,  -0.60, -12.91,  99.90, -13.32,   0.19,  (min)
05/13 03Z,  -0.60, -11.90,  99.90, -12.31,   0.19,
05/13 04Z,  -0.60, -10.12,  99.90, -10.53,   0.19,
05/13 05Z,  -0.60,  -7.86,  99.90,  -8.27,   0.19,
05/13 06Z,  -0.50,  -5.75,  99.90,  -6.06,   0.19,
05/13 07Z,  -0.50,  -4.42,  99.90,  -4.73,   0.19,
05/13 08Z,  -0.50,  -4.14,  99.90,  -4.45,   0.19,  (max)
05/13 09Z,  -0.50,  -4.92,  99.90,  -5.23,   0.19,
05/13 10Z,  -0.40,  -6.61,  99.90,  -6.82,   0.19,
05/13 11Z,  -0.40,  -8.88,  99.90,  -9.09,   0.19,
05/13 12Z,  -0.40, -11.19,  99.90, -11.40,   0.19,
05/13 13Z,  -0.50, -12.99,  99.90, -13.30,   0.19,
05/13 14Z,  -0.50, -13.89,  99.90, -14.20,   0.19,  (min)
05/13 15Z,  -0.50, -13.74,  99.90, -14.05,   0.19,
05/13 16Z,  -0.50, -12.60,  99.90, -12.91,   0.19,
05/13 17Z,  -0.50, -10.65,  99.90, -10.96,   0.19,
05/13 18Z,  -0.40,  -8.38,  99.90,  -8.59,   0.19,
05/13 19Z,  -0.40,  -6.52,  99.90,  -6.73,   0.19,
05/13 20Z,  -0.40,  -5.59,  99.90,  -5.80,   0.19,  (max)
05/13 21Z,  -0.40,  -5.70,  99.90,  -5.91,   0.19,
05/13 22Z,  -0.30,  -6.79,  99.90,  -6.90,   0.19,
05/13 23Z,  -0.30,  -8.60,  99.90,  -8.71,   0.19,
05/14 00Z,  -0.30, -10.60,  99.90, -10.71,   0.19,
05/14 01Z,  -0.40, -12.22,  99.90, -12.43,   0.19,
05/14 02Z,  -0.40, -12.98,  99.90, -13.19,   0.19,  (min)
05/14 03Z,  -0.40, -12.66,  99.90, -12.87,   0.19,
05/14 04Z,  -0.50, -11.31,  99.90, -11.62,   0.19,
05/14 05Z,  -0.50,  -9.15,  99.90,  -9.46,   0.19,
05/14 06Z,  -0.50,  -6.56,  99.90,  -6.87,   0.19,
05/14 07Z,  -0.40,  -4.31,  99.90,  -4.52,   0.19,
05/14 08Z,  -0.40,  -3.10,  99.90,  -3.31,   0.19,  (max)
05/14 09Z,  -0.40,  -3.19,  99.90,  -3.40,   0.19,
05/14 10Z,  -0.40,  -4.57,  99.90,  -4.78,   0.19,
05/14 11Z,  -0.40,  -6.97,  99.90,  -7.18,   0.19,
05/14 12Z,  -0.40,  -9.88,  99.90, -10.09,   0.19,