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
Port Heiden, AK
Egegik, AK
Naknek, AK
Clark's Pt, AK
Goodnews Bay
Quinhagak, AK
Kuskokwak, AK
Eek, Apokak, AK
Popokamute, AK
Scammon Bay AK
St. Lawrence, AK
Kwikluak, AK
Kawanak, AK
Apoon, Yukon, AK
St. Michaels, AK
Golovin, AK
Nome, AK
Port Clarence, AK
Kotzebue, AK
Pt. Barrow, AK
Prudhoe Bay, AK
St. Paul Island AK
Surge List
Norton Sound
Arctic Alaska
#Seward, AK : 07/19/2025 11:22:34 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/17 12Z,   0.60,  -7.97,  -8.67,  99.90,  -1.30,
07/17 13Z,   0.60,  -6.55,  -7.29,  99.90,  -1.34,
07/17 14Z,   0.60,  -5.78,  -6.52,  99.90,  -1.34,  (max)
07/17 15Z,   0.50,  -5.87,  -6.58,  99.90,  -1.21,
07/17 16Z,   0.50,  -6.79,  -7.54,  99.90,  -1.25,
07/17 17Z,   0.50,  -8.30,  -8.99,  99.90,  -1.19,
07/17 18Z,   0.50, -10.05, -10.69,  99.90,  -1.14,
07/17 19Z,   0.50, -11.61, -12.32,  99.90,  -1.21,
07/17 20Z,   0.50, -12.54, -13.24,  99.90,  -1.20,  (min)
07/17 21Z,   0.50, -12.48, -13.03,  99.90,  -1.05,
07/17 22Z,   0.60, -11.42, -11.91,  99.90,  -1.09,
07/17 23Z,   0.60,  -9.63, -10.19,  99.90,  -1.16,
07/18 00Z,   0.60,  -7.52,  -8.15,  99.90,  -1.23,
07/18 01Z,   0.60,  -5.53,  -5.99,  99.90,  -1.06,
07/18 02Z,   0.60,  -4.09,  -4.67,  99.90,  -1.18,
07/18 03Z,   0.60,  -3.54,  -4.32,  99.90,  -1.38,  (max)
07/18 04Z,   0.60,  -3.99,  -4.69,  99.90,  -1.30,
07/18 05Z,   0.60,  -5.32,  -5.91,  99.90,  -1.19,
07/18 06Z,   0.60,  -7.22,  -7.75,  99.90,  -1.13,
07/18 07Z,   0.60,  -9.33,  -9.90,  99.90,  -1.17,
07/18 08Z,   0.60, -11.15, -11.81,  99.90,  -1.26,
07/18 09Z,   0.70, -12.24, -12.67,  99.90,  -1.13,
07/18 10Z,   0.60, -12.38, -12.96,  99.90,  -1.18,  (min)
07/18 11Z,   0.60, -11.67, -12.21,  99.90,  -1.14,
07/18 12Z,   0.60, -10.39, -11.01,  99.90,  -1.22,
07/18 13Z,   0.60,  -8.90,  -9.52,  99.90,  -1.22,
07/18 14Z,   0.60,  -7.57,  -8.18,  99.90,  -1.21,
07/18 15Z,   0.60,  -6.76,  -7.37,  99.90,  -1.21,
07/18 16Z,   0.60,  -6.66,  -7.25,  99.90,  -1.19,  (max)
07/18 17Z,   0.60,  -7.26,  -7.88,  99.90,  -1.22,
07/18 18Z,   0.60,  -8.36,  -8.88,  99.90,  -1.12,
07/18 19Z,   0.60,  -9.67, -10.22,  99.90,  -1.15,
07/18 20Z,   0.70, -10.84, -11.61,  99.90,  -1.47,
07/18 21Z,   0.70, -11.47, -12.04,  99.90,  -1.27,  (min)
07/18 22Z,   0.60, -11.26, -11.65,  99.90,  -0.99,
07/18 23Z,   0.60, -10.23, -10.77,  99.90,  -1.14,
07/19 00Z,   0.70,  -8.61,  -9.18,  99.90,  -1.27,
07/19 01Z,   0.70,  -6.73,  -7.41,  99.90,  -1.38,
07/19 02Z,   0.70,  -4.98,  -5.61,  99.90,  -1.33,
07/19 03Z,   0.70,  -3.75,  -4.33,  99.90,  -1.28,
07/19 04Z,   0.60,  -3.35,  -4.08,  99.90,  -1.33,  (max)
07/19 05Z,   0.60,  -3.89,  -4.68,  99.90,  -1.39,
07/19 06Z,   0.60,  -5.25,  -5.93,  99.90,  -1.28,
07/19 07Z,   0.60,  -7.18,  -7.81,  99.90,  -1.23,
07/19 08Z,   0.70,  -9.33, -10.00,  99.90,  -1.37,
07/19 09Z,   0.70, -11.25, -11.85,  99.90,  -1.30,
07/19 10Z,   0.70, -12.50, -13.01,  99.90,  -1.21,
07/19 11Z,   0.70, -12.87, -13.46,  99.90,  -1.29,  (min)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/19 12Z,   0.70, -12.41,  99.90, -12.98,  -1.27,
07/19 13Z,   0.70, -11.33,  99.90, -11.88,  -1.25,
07/19 14Z,   0.70,  -9.93,  99.90, -10.45,  -1.22,
07/19 15Z,   0.70,  -8.54,  99.90,  -9.04,  -1.20,
07/19 16Z,   0.70,  -7.53,  99.90,  -8.01,  -1.17,
07/19 17Z,   0.70,  -7.12,  99.90,  -7.57,  -1.15,  (max)
07/19 18Z,   0.70,  -7.33,  99.90,  -7.76,  -1.13,
07/19 19Z,   0.70,  -8.02,  99.90,  -8.43,  -1.10,
07/19 20Z,   0.70,  -9.00,  99.90,  -9.38,  -1.08,
07/19 21Z,   0.70,  -9.94,  99.90, -10.30,  -1.06,
07/19 22Z,   0.70, -10.46,  99.90, -10.80,  -1.03,  (min)
07/19 23Z,   0.70, -10.30,  99.90, -10.61,  -1.01,
07/20 00Z,   0.70,  -9.43,  99.90,  -9.74,  -1.01,
07/20 01Z,   0.70,  -8.02,  99.90,  -8.33,  -1.01,
07/20 02Z,   0.70,  -6.34,  99.90,  -6.65,  -1.01,
07/20 03Z,   0.60,  -4.71,  99.90,  -5.12,  -1.01,
07/20 04Z,   0.60,  -3.54,  99.90,  -3.95,  -1.01,
07/20 05Z,   0.60,  -3.15,  99.90,  -3.56,  -1.01,  (max)
07/20 06Z,   0.60,  -3.67,  99.90,  -4.08,  -1.01,
07/20 07Z,   0.60,  -5.02,  99.90,  -5.42,  -1.01,
07/20 08Z,   0.60,  -6.98,  99.90,  -7.39,  -1.01,
07/20 09Z,   0.70,  -9.25,  99.90,  -9.56,  -1.01,
07/20 10Z,   0.60, -11.36,  99.90, -11.77,  -1.01,
07/20 11Z,   0.60, -12.86,  99.90, -13.27,  -1.01,
07/20 12Z,   0.60, -13.51,  99.90, -13.92,  -1.01,  (min)
07/20 13Z,   0.60, -13.28,  99.90, -13.69,  -1.01,
07/20 14Z,   0.50, -12.31,  99.90, -12.82,  -1.01,
07/20 15Z,   0.60, -10.86,  99.90, -11.27,  -1.01,
07/20 16Z,   0.60,  -9.27,  99.90,  -9.68,  -1.01,
07/20 17Z,   0.60,  -7.96,  99.90,  -8.37,  -1.01,
07/20 18Z,   0.60,  -7.18,  99.90,  -7.59,  -1.01,
07/20 19Z,   0.60,  -7.02,  99.90,  -7.43,  -1.01,  (max)
07/20 20Z,   0.60,  -7.43,  99.90,  -7.84,  -1.01,
07/20 21Z,   0.60,  -8.23,  99.90,  -8.64,  -1.01,
07/20 22Z,   0.60,  -9.14,  99.90,  -9.55,  -1.01,
07/20 23Z,   0.60,  -9.75,  99.90, -10.16,  -1.01,
07/21 00Z,   0.60,  -9.77,  99.90, -10.18,  -1.01,  (min)
07/21 01Z,   0.60,  -9.12,  99.90,  -9.53,  -1.01,
07/21 02Z,   0.60,  -7.87,  99.90,  -8.28,  -1.01,
07/21 03Z,   0.50,  -6.26,  99.90,  -6.77,  -1.01,
07/21 04Z,   0.50,  -4.62,  99.90,  -5.13,  -1.01,
07/21 05Z,   0.50,  -3.37,  99.90,  -3.88,  -1.01,
07/21 06Z,   0.50,  -2.88,  99.90,  -3.39,  -1.01,  (max)
07/21 07Z,   0.50,  -3.33,  99.90,  -3.84,  -1.01,
07/21 08Z,   0.60,  -4.67,  99.90,  -5.08,  -1.01,
07/21 09Z,   0.60,  -6.73,  99.90,  -7.14,  -1.01,
07/21 10Z,   0.60,  -9.20,  99.90,  -9.61,  -1.01,
07/21 11Z,   0.60, -11.58,  99.90, -11.99,  -1.01,
07/21 12Z,   0.60, -13.37,  99.90, -13.78,  -1.01,
07/21 13Z,   0.60, -14.26,  99.90, -14.67,  -1.01,  (min)
07/21 14Z,   0.60, -14.16,  99.90, -14.57,  -1.01,
07/21 15Z,   0.60, -13.16,  99.90, -13.57,  -1.01,
07/21 16Z,   0.60, -11.51,  99.90, -11.92,  -1.01,
07/21 17Z,   0.60,  -9.62,  99.90, -10.03,  -1.01,
07/21 18Z,   0.60,  -7.97,  99.90,  -8.38,  -1.01,
07/21 19Z,   0.60,  -6.86,  99.90,  -7.27,  -1.01,
07/21 20Z,   0.60,  -6.46,  99.90,  -6.87,  -1.01,  (max)
07/21 21Z,   0.60,  -6.74,  99.90,  -7.15,  -1.01,
07/21 22Z,   0.60,  -7.58,  99.90,  -7.99,  -1.01,
07/21 23Z,   0.60,  -8.63,  99.90,  -9.04,  -1.01,
07/22 00Z,   0.60,  -9.47,  99.90,  -9.88,  -1.01,
07/22 01Z,   0.60,  -9.72,  99.90, -10.13,  -1.01,  (min)
07/22 02Z,   0.60,  -9.22,  99.90,  -9.63,  -1.01,
07/22 03Z,   0.60,  -8.03,  99.90,  -8.44,  -1.01,
07/22 04Z,   0.70,  -6.35,  99.90,  -6.66,  -1.01,
07/22 05Z,   0.70,  -4.55,  99.90,  -4.86,  -1.01,
07/22 06Z,   0.70,  -3.14,  99.90,  -3.45,  -1.01,
07/22 07Z,   0.80,  -2.53,  99.90,  -2.74,  -1.01,  (max)
07/22 08Z,   0.90,  -2.92,  99.90,  -3.03,  -1.01,
07/22 09Z,   0.80,  -4.33,  99.90,  -4.54,  -1.01,
07/22 10Z,   0.70,  -6.58,  99.90,  -6.89,  -1.01,
07/22 11Z,   0.70,  -9.32,  99.90,  -9.63,  -1.01,
07/22 12Z,   0.70, -11.99,  99.90, -12.30,  -1.01,
07/22 13Z,   0.70, -14.03,  99.90, -14.34,  -1.01,
07/22 14Z,   0.70, -15.04,  99.90, -15.35,  -1.01,  (min)
07/22 15Z,   0.70, -14.91,  99.90, -15.22,  -1.01,
07/22 16Z,   0.70, -13.71,  99.90, -14.02,  -1.01,
07/22 17Z,   0.70, -11.75,  99.90, -12.06,  -1.01,
07/22 18Z,   0.80,  -9.52,  99.90,  -9.73,  -1.01,
07/22 19Z,   0.90,  -7.57,  99.90,  -7.68,  -1.01,
07/22 20Z,   0.80,  -6.27,  99.90,  -6.48,  -1.01,
07/22 21Z,   0.80,  -5.79,  99.90,  -6.00,  -1.01,  (max)
07/22 22Z,   0.90,  -6.16,  99.90,  -6.27,  -1.01,
07/22 23Z,   0.90,  -7.21,  99.90,  -7.31,  -1.01,
07/23 00Z,   0.90,  -8.54,  99.90,  -8.65,  -1.01,