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 : 05/13/2026 06:22:42 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/11 12Z,  -0.30,  -9.03,  -9.44,  99.90,  -0.11,  (min)
05/11 13Z,  -0.30,  -8.36,  -8.84,  99.90,  -0.18,
05/11 14Z,  -0.30,  -7.44,  -8.00,  99.90,  -0.26,
05/11 15Z,  -0.30,  -6.55,  -7.16,  99.90,  -0.31,
05/11 16Z,  -0.30,  -5.96,  -6.61,  99.90,  -0.35,
05/11 17Z,  -0.30,  -5.86,  -6.54,  99.90,  -0.38,  (max)
05/11 18Z,  -0.50,  -6.34,  -7.00,  99.90,  -0.16,
05/11 19Z,  -0.50,  -7.33,  -7.95,  99.90,  -0.12,
05/11 20Z,  -0.40,  -8.61,  -9.15,  99.90,  -0.14,
05/11 21Z,  -0.40,  -9.89, -10.47,  99.90,  -0.18,
05/11 22Z,  -0.30, -10.86, -11.38,  99.90,  -0.22,
05/11 23Z,  -0.30, -11.26, -11.85,  99.90,  -0.29,  (min)
05/12 00Z,  -0.50, -10.97, -11.63,  99.90,  -0.16,
05/12 01Z,  -0.50, -10.01, -10.67,  99.90,  -0.16,
05/12 02Z,  -0.50,  -8.58,  -9.32,  99.90,  -0.24,
05/12 03Z,  -0.40,  -6.99,  -7.73,  99.90,  -0.34,
05/12 04Z,  -0.40,  -5.59,  -6.31,  99.90,  -0.32,
05/12 05Z,  -0.40,  -4.70,  -5.39,  99.90,  -0.29,
05/12 06Z,  -0.50,  -4.50,  -5.11,  99.90,  -0.11,  (max)
05/12 07Z,  -0.40,  -5.05,  -5.58,  99.90,  -0.13,
05/12 08Z,  -0.30,  -6.18,  -6.56,  99.90,  -0.08,
05/12 09Z,  -0.30,  -7.62,  -8.00,  99.90,  -0.08,
05/12 10Z,  -0.30,  -9.03,  -9.35,  99.90,  -0.02,
05/12 11Z,  -0.30, -10.05, -10.42,  99.90,  -0.07,
05/12 12Z,  -0.40, -10.46, -10.78,  99.90,   0.08,  (min)
05/12 13Z,  -0.30, -10.16, -10.57,  99.90,  -0.11,
05/12 14Z,  -0.30,  -9.27,  -9.70,  99.90,  -0.13,
05/12 15Z,  -0.20,  -8.03,  -8.50,  99.90,  -0.27,
05/12 16Z,  -0.20,  -6.79,  -7.27,  99.90,  -0.28,
05/12 17Z,  -0.20,  -5.88,  -6.39,  99.90,  -0.31,
05/12 18Z,  -0.10,  -5.58,  -6.07,  99.90,  -0.39,  (max)
05/12 19Z,   0.00,  -5.98,  -6.39,  99.90,  -0.41,
05/12 20Z,   0.00,  -6.99,  -7.30,  99.90,  -0.31,
05/12 21Z,   0.00,  -8.37,  -8.67,  99.90,  -0.30,
05/12 22Z,   0.00,  -9.76, -10.01,  99.90,  -0.25,
05/12 23Z,   0.10, -10.77, -11.01,  99.90,  -0.34,
05/13 00Z,   0.10, -11.12, -11.44,  99.90,  -0.42,  (min)
05/13 01Z,   0.10, -10.67, -10.93,  99.90,  -0.36,
05/13 02Z,   0.10,  -9.48,  -9.87,  99.90,  -0.49,
05/13 03Z,   0.20,  -7.79,  -8.17,  99.90,  -0.58,
05/13 04Z,   0.30,  -6.00,  -6.38,  99.90,  -0.68,
05/13 05Z,   0.30,  -4.53,  -4.85,  99.90,  -0.62,
05/13 06Z,   0.40,  -3.74,  -4.03,  99.90,  -0.69,  (max)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/13 07Z,   0.40,  -3.83,  99.90,  -4.10,  -0.66,
05/13 08Z,   0.40,  -4.81,  99.90,  -5.05,  -0.63,
05/13 09Z,   0.30,  -6.46,  99.90,  -6.77,  -0.61,
05/13 10Z,   0.30,  -8.41,  99.90,  -8.69,  -0.58,
05/13 11Z,   0.30, -10.20,  99.90, -10.45,  -0.55,
05/13 12Z,   0.30, -11.43,  99.90, -11.65,  -0.52,
05/13 13Z,   0.30, -11.82,  99.90, -12.01,  -0.49,  (min)
05/13 14Z,   0.30, -11.30,  99.90, -11.47,  -0.46,
05/13 15Z,   0.30, -10.04,  99.90, -10.18,  -0.44,
05/13 16Z,   0.30,  -8.37,  99.90,  -8.48,  -0.41,
05/13 17Z,   0.40,  -6.73,  99.90,  -6.71,  -0.38,
05/13 18Z,   0.40,  -5.54,  99.90,  -5.50,  -0.35,
05/13 19Z,   0.40,  -5.10,  99.90,  -5.06,  -0.35,  (max)
05/13 20Z,   0.40,  -5.52,  99.90,  -5.47,  -0.35,
05/13 21Z,   0.40,  -6.65,  99.90,  -6.60,  -0.35,
05/13 22Z,   0.40,  -8.18,  99.90,  -8.13,  -0.35,
05/13 23Z,   0.50,  -9.68,  99.90,  -9.53,  -0.35,
05/14 00Z,   0.50, -10.70,  99.90, -10.55,  -0.35,
05/14 01Z,   0.50, -10.93,  99.90, -10.78,  -0.35,  (min)
05/14 02Z,   0.40, -10.23,  99.90, -10.18,  -0.35,
05/14 03Z,   0.40,  -8.73,  99.90,  -8.69,  -0.35,
05/14 04Z,   0.30,  -6.77,  99.90,  -6.82,  -0.35,
05/14 05Z,   0.20,  -4.82,  99.90,  -4.97,  -0.35,
05/14 06Z,   0.20,  -3.37,  99.90,  -3.52,  -0.35,
05/14 07Z,   0.20,  -2.81,  99.90,  -2.96,  -0.35,  (max)
05/14 08Z,   0.20,  -3.32,  99.90,  -3.48,  -0.35,
05/14 09Z,   0.20,  -4.85,  99.90,  -5.00,  -0.35,
05/14 10Z,   0.30,  -7.07,  99.90,  -7.12,  -0.35,
05/14 11Z,   0.30,  -9.50,  99.90,  -9.55,  -0.35,
05/14 12Z,   0.30, -11.60,  99.90, -11.65,  -0.35,
05/14 13Z,   0.20, -12.90,  99.90, -13.05,  -0.35,
05/14 14Z,   0.20, -13.12,  99.90, -13.27,  -0.35,  (min)
05/14 15Z,   0.20, -12.25,  99.90, -12.40,  -0.35,
05/14 16Z,   0.10, -10.54,  99.90, -10.79,  -0.35,
05/14 17Z,   0.10,  -8.42,  99.90,  -8.67,  -0.35,
05/14 18Z,   0.10,  -6.42,  99.90,  -6.67,  -0.35,
05/14 19Z,   0.10,  -5.03,  99.90,  -5.28,  -0.35,
05/14 20Z,   0.10,  -4.57,  99.90,  -4.82,  -0.35,  (max)
05/14 21Z,   0.10,  -5.09,  99.90,  -5.34,  -0.35,
05/14 22Z,   0.10,  -6.40,  99.90,  -6.65,  -0.35,
05/14 23Z,   0.10,  -8.10,  99.90,  -8.35,  -0.35,
05/15 00Z,   0.10,  -9.67,  99.90,  -9.92,  -0.35,
05/15 01Z,   0.20, -10.62,  99.90, -10.77,  -0.35,
05/15 02Z,   0.20, -10.63,  99.90, -10.78,  -0.35,  (min)
05/15 03Z,   0.10,  -9.63,  99.90,  -9.88,  -0.35,
05/15 04Z,   0.10,  -7.82,  99.90,  -8.07,  -0.35,
05/15 05Z,   0.10,  -5.62,  99.90,  -5.87,  -0.35,
05/15 06Z,   0.00,  -3.59,  99.90,  -3.94,  -0.35,
05/15 07Z,   0.00,  -2.28,  99.90,  -2.63,  -0.35,
05/15 08Z,   0.00,  -2.07,  99.90,  -2.42,  -0.35,  (max)
05/15 09Z,   0.00,  -3.09,  99.90,  -3.45,  -0.35,
05/15 10Z,   0.00,  -5.20,  99.90,  -5.55,  -0.35,
05/15 11Z,   0.00,  -7.95,  99.90,  -8.30,  -0.35,
05/15 12Z,   0.00, -10.76,  99.90, -11.11,  -0.35,
05/15 13Z,   0.00, -13.01,  99.90, -13.36,  -0.35,
05/15 14Z,   0.00, -14.23,  99.90, -14.58,  -0.35,  (min)
05/15 15Z,   0.00, -14.16,  99.90, -14.51,  -0.35,
05/15 16Z,   0.00, -12.87,  99.90, -13.22,  -0.35,
05/15 17Z,  -0.10, -10.70,  99.90, -11.15,  -0.35,
05/15 18Z,  -0.10,  -8.19,  99.90,  -8.64,  -0.35,
05/15 19Z,  -0.10,  -5.95,  99.90,  -6.40,  -0.35,
05/15 20Z,  -0.10,  -4.49,  99.90,  -4.94,  -0.35,
05/15 21Z,   0.00,  -4.10,  99.90,  -4.46,  -0.35,  (max)
05/15 22Z,   0.00,  -4.81,  99.90,  -5.16,  -0.35,
05/15 23Z,   0.00,  -6.31,  99.90,  -6.66,  -0.35,
05/16 00Z,   0.00,  -8.13,  99.90,  -8.48,  -0.35,
05/16 01Z,   0.00,  -9.69,  99.90, -10.04,  -0.35,
05/16 02Z,   0.00, -10.49,  99.90, -10.84,  -0.35,  (min)
05/16 03Z,   0.00, -10.23,  99.90, -10.58,  -0.35,
05/16 04Z,   0.00,  -8.91,  99.90,  -9.26,  -0.35,
05/16 05Z,  -0.10,  -6.82,  99.90,  -7.27,  -0.35,
05/16 06Z,  -0.10,  -4.48,  99.90,  -4.93,  -0.35,
05/16 07Z,  -0.10,  -2.50,  99.90,  -2.95,  -0.35,
05/16 08Z,  -0.10,  -1.43,  99.90,  -1.88,  -0.35,  (max)
05/16 09Z,  -0.10,  -1.64,  99.90,  -2.10,  -0.35,
05/16 10Z,  -0.10,  -3.19,  99.90,  -3.64,  -0.35,
05/16 11Z,  -0.10,  -5.80,  99.90,  -6.25,  -0.35,
05/16 12Z,  -0.10,  -8.95,  99.90,  -9.40,  -0.35,
05/16 13Z,  -0.10, -11.97,  99.90, -12.42,  -0.35,
05/16 14Z,  -0.10, -14.22,  99.90, -14.67,  -0.35,
05/16 15Z,  -0.10, -15.22,  99.90, -15.67,  -0.35,  (min)
05/16 16Z,  -0.20, -14.79,  99.90, -15.34,  -0.35,
05/16 17Z,  -0.20, -13.09,  99.90, -13.64,  -0.35,
05/16 18Z,  -0.20, -10.54,  99.90, -11.09,  -0.35,
05/16 19Z,  -0.20,  -7.78,  99.90,  -8.33,  -0.35,
05/16 20Z,  -0.20,  -5.45,  99.90,  -6.00,  -0.35,
05/16 21Z,  -0.10,  -4.05,  99.90,  -4.50,  -0.35,
05/16 22Z,  -0.10,  -3.84,  99.90,  -4.29,  -0.35,  (max)
05/16 23Z,  -0.10,  -4.74,  99.90,  -5.19,  -0.35,
05/17 00Z,  -0.10,  -6.40,  99.90,  -6.85,  -0.35,