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
#Portsmouth (Fort Point), NH : 07/20/2025 07:21:37 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/18 12Z,   0.30,  -5.78,  99.90,  -5.48,   0.00,
07/18 13Z,   0.30,  -8.04,  99.90,  -7.74,   0.00,
07/18 14Z,   0.30, -10.02,  99.90,  -9.72,   0.00,
07/18 15Z,   0.30, -11.12,  99.90, -10.82,   0.00,  (min)
07/18 16Z,   0.30, -11.10,  99.90, -10.80,   0.00,
07/18 17Z,   0.30, -10.00,  99.90,  -9.70,   0.00,
07/18 18Z,   0.30,  -8.09,  99.90,  -7.79,   0.00,
07/18 19Z,   0.40,  -5.80,  99.90,  -5.40,   0.00,
07/18 20Z,   0.40,  -3.68,  99.90,  -3.28,   0.00,
07/18 21Z,   0.40,  -2.24,  99.90,  -1.84,   0.00,
07/18 22Z,   0.40,  -1.83,  99.90,  -1.43,   0.00,  (max)
07/18 23Z,   0.40,  -2.47,  99.90,  -2.07,   0.00,
07/19 00Z,   0.30,  -4.06,  99.90,  -3.76,   0.00,
07/19 01Z,   0.30,  -6.32,  99.90,  -6.02,   0.00,
07/19 02Z,   0.30,  -8.68,  99.90,  -8.38,   0.00,
07/19 03Z,   0.30, -10.48,  99.90, -10.18,   0.00,
07/19 04Z,   0.30, -11.28,  99.90, -10.98,   0.00,  (min)
07/19 05Z,   0.30, -11.00,  99.90, -10.70,   0.00,
07/19 06Z,   0.20,  -9.74,  99.90,  -9.54,   0.00,
07/19 07Z,   0.20,  -7.83,  99.90,  -7.63,   0.00,
07/19 08Z,   0.20,  -5.75,  99.90,  -5.55,   0.00,
07/19 09Z,   0.30,  -4.01,  99.90,  -3.71,   0.00,
07/19 10Z,   0.30,  -3.07,  99.90,  -2.77,   0.00,  (max)
07/19 11Z,   0.30,  -3.10,  99.90,  -2.80,   0.00,
07/19 12Z,   0.40,  -4.08,  99.90,  -3.68,   0.00,
07/19 13Z,   0.40,  -5.85,  99.90,  -5.45,   0.00,
07/19 14Z,   0.40,  -8.00,  99.90,  -7.60,   0.00,
07/19 15Z,   0.40,  -9.88,  99.90,  -9.48,   0.00,
07/19 16Z,   0.40, -10.90,  99.90, -10.50,   0.00,  (min)
07/19 17Z,   0.40, -10.85,  99.90, -10.45,   0.00,
07/19 18Z,   0.40,  -9.75,  99.90,  -9.35,   0.00,
07/19 19Z,   0.40,  -7.84,  99.90,  -7.44,   0.00,
07/19 20Z,   0.40,  -5.57,  99.90,  -5.17,   0.00,
07/19 21Z,   0.40,  -3.48,  99.90,  -3.08,   0.00,
07/19 22Z,   0.40,  -2.09,  99.90,  -1.69,   0.00,
07/19 23Z,   0.40,  -1.70,  99.90,  -1.30,   0.00,  (max)
07/20 00Z,   0.30,  -2.36,  99.90,  -2.06,   0.00,
07/20 01Z,   0.30,  -3.97,  99.90,  -3.67,   0.00,
07/20 02Z,   0.30,  -6.26,  99.90,  -5.96,   0.00,
07/20 03Z,   0.30,  -8.66,  99.90,  -8.36,   0.00,
07/20 04Z,   0.30, -10.51,  99.90, -10.21,   0.00,
07/20 05Z,   0.20, -11.41,  99.90, -11.21,   0.00,  (min)
07/20 06Z,   0.20, -11.22,  99.90, -11.02,   0.00,
07/20 07Z,   0.30, -10.03,  99.90,  -9.73,   0.00,
07/20 08Z,   0.30,  -8.16,  99.90,  -7.86,   0.00,
07/20 09Z,   0.30,  -6.08,  99.90,  -5.78,   0.00,
07/20 10Z,   0.30,  -4.32,  99.90,  -4.02,   0.00,
07/20 11Z,   0.30,  -3.30,  99.90,  -3.00,   0.00,
07/20 12Z,   0.30,  -3.22,  99.90,  -2.92,   0.00,  (max)
07/20 13Z,   0.30,  -4.07,  99.90,  -3.77,   0.00,
07/20 14Z,   0.30,  -5.76,  99.90,  -5.46,   0.00,
07/20 15Z,   0.30,  -7.85,  99.90,  -7.55,   0.00,
07/20 16Z,   0.30,  -9.69,  99.90,  -9.39,   0.00,
07/20 17Z,   0.30, -10.72,  99.90, -10.42,   0.00,  (min)
07/20 18Z,   0.40, -10.70,  99.90, -10.30,   0.00,
07/20 19Z,   0.40,  -9.63,  99.90,  -9.23,   0.00,
07/20 20Z,   0.40,  -7.74,  99.90,  -7.34,   0.00,
07/20 21Z,   0.50,  -5.48,  99.90,  -4.98,   0.00,
07/20 22Z,   0.50,  -3.39,  99.90,  -2.89,   0.00,
07/20 23Z,   0.50,  -1.99,  99.90,  -1.49,   0.00,
07/21 00Z,   0.50,  -1.57,  99.90,  -1.07,   0.00,  (max)
07/21 01Z,   0.50,  -2.19,  99.90,  -1.69,   0.00,
07/21 02Z,   0.50,  -3.81,  99.90,  -3.31,   0.00,
07/21 03Z,   0.50,  -6.15,  99.90,  -5.65,   0.00,
07/21 04Z,   0.50,  -8.62,  99.90,  -8.12,   0.00,
07/21 05Z,   0.50, -10.57,  99.90, -10.07,   0.00,
07/21 06Z,   0.50, -11.58,  99.90, -11.08,   0.00,  (min)
07/21 07Z,   0.50, -11.49,  99.90, -10.99,   0.00,
07/21 08Z,   0.50, -10.36,  99.90,  -9.86,   0.00,
07/21 09Z,   0.50,  -8.49,  99.90,  -7.99,   0.00,
07/21 10Z,   0.50,  -6.37,  99.90,  -5.87,   0.00,
07/21 11Z,   0.50,  -4.53,  99.90,  -4.03,   0.00,
07/21 12Z,   0.60,  -3.40,  99.90,  -2.80,   0.00,
07/21 13Z,   0.60,  -3.18,  99.90,  -2.58,   0.00,  (max)
07/21 14Z,   0.50,  -3.94,  99.90,  -3.44,   0.00,
07/21 15Z,   0.50,  -5.59,  99.90,  -5.09,   0.00,
07/21 16Z,   0.50,  -7.68,  99.90,  -7.18,   0.00,
07/21 17Z,   0.50,  -9.55,  99.90,  -9.05,   0.00,
07/21 18Z,   0.60, -10.63,  99.90, -10.03,   0.00,
07/21 19Z,   0.60, -10.68,  99.90, -10.08,   0.00,  (min)
07/21 20Z,   0.60,  -9.64,  99.90,  -9.04,   0.00,
07/21 21Z,   0.60,  -7.75,  99.90,  -7.15,   0.00,
07/21 22Z,   0.50,  -5.46,  99.90,  -4.96,   0.00,
07/21 23Z,   0.40,  -3.33,  99.90,  -2.93,   0.00,
07/22 00Z,   0.40,  -1.87,  99.90,  -1.47,   0.00,
07/22 01Z,   0.40,  -1.39,  99.90,  -0.99,   0.00,  (max)
07/22 02Z,   0.40,  -1.98,  99.90,  -1.58,   0.00,
07/22 03Z,   0.50,  -3.63,  99.90,  -3.13,   0.00,
07/22 04Z,   0.60,  -6.06,  99.90,  -5.46,   0.00,
07/22 05Z,   0.60,  -8.63,  99.90,  -8.03,   0.00,
07/22 06Z,   0.60, -10.68,  99.90, -10.08,   0.00,
07/22 07Z,   0.50, -11.80,  99.90, -11.30,   0.00,
07/22 08Z,   0.40, -11.77,  99.90, -11.37,   0.00,  (min)
07/22 09Z,   0.40, -10.65,  99.90, -10.25,   0.00,
07/22 10Z,   0.30,  -8.74,  99.90,  -8.44,   0.00,
07/22 11Z,   0.30,  -6.53,  99.90,  -6.23,   0.00,
07/22 12Z,   0.30,  -4.58,  99.90,  -4.28,   0.00,
07/22 13Z,   0.30,  -3.34,  99.90,  -3.04,   0.00,
07/22 14Z,   0.30,  -3.03,  99.90,  -2.73,   0.00,  (max)
07/22 15Z,   0.40,  -3.76,  99.90,  -3.36,   0.00,
07/22 16Z,   0.40,  -5.44,  99.90,  -5.04,   0.00,
07/22 17Z,   0.40,  -7.60,  99.90,  -7.20,   0.00,
07/22 18Z,   0.40,  -9.53,  99.90,  -9.13,   0.00,
07/22 19Z,   0.40, -10.69,  99.90, -10.29,   0.00,
07/22 20Z,   0.40, -10.77,  99.90, -10.37,   0.00,  (min)
07/22 21Z,   0.40,  -9.73,  99.90,  -9.33,   0.00,
07/22 22Z,   0.40,  -7.79,  99.90,  -7.39,   0.00,
07/22 23Z,   0.40,  -5.43,  99.90,  -5.03,   0.00,
07/23 00Z,   0.40,  -3.23,  99.90,  -2.83,   0.00,
07/23 01Z,   0.40,  -1.71,  99.90,  -1.31,   0.00,
07/23 02Z,   0.40,  -1.19,  99.90,  -0.79,   0.00,  (max)
07/23 03Z,   0.30,  -1.80,  99.90,  -1.50,   0.00,
07/23 04Z,   0.30,  -3.53,  99.90,  -3.23,   0.00,
07/23 05Z,   0.20,  -6.07,  99.90,  -5.87,   0.00,
07/23 06Z,   0.20,  -8.74,  99.90,  -8.54,   0.00,
07/23 07Z,   0.20, -10.88,  99.90, -10.68,   0.00,
07/23 08Z,   0.20, -12.04,  99.90, -11.84,   0.00,  (min)
07/23 09Z,   0.20, -12.00,  99.90, -11.80,   0.00,
07/23 10Z,   0.20, -10.81,  99.90, -10.61,   0.00,
07/23 11Z,   0.20,  -8.80,  99.90,  -8.60,   0.00,
07/23 12Z,   0.20,  -6.48,  99.90,  -6.28,   0.00,
07/23 13Z,   0.20,  -4.44,  99.90,  -4.24,   0.00,
07/23 14Z,   0.20,  -3.14,  99.90,  -2.94,   0.00,
07/23 15Z,   0.10,  -2.82,  99.90,  -2.72,   0.00,  (max)
07/23 16Z,   0.10,  -3.62,  99.90,  -3.52,   0.00,
07/23 17Z,   0.10,  -5.42,  99.90,  -5.32,   0.00,
07/23 18Z,   0.10,  -7.68,  99.90,  -7.58,   0.00,
07/23 19Z,   0.10,  -9.68,  99.90,  -9.58,   0.00,
07/23 20Z,   0.00, -10.87,  99.90, -10.87,   0.00,
07/23 21Z,   0.00, -10.93,  99.90, -10.93,   0.00,  (min)
07/23 22Z,   0.00,  -9.81,  99.90,  -9.81,   0.00,
07/23 23Z,   0.10,  -7.77,  99.90,  -7.67,   0.00,
07/24 00Z,   0.10,  -5.32,  99.90,  -5.22,   0.00,