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

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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
#Nantucket Island, MA : 01/23/2026 05:22:30 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
01/21 12Z,  -0.10,   0.35,   0.29,  99.90,   0.04,  (min)
01/21 13Z,  -0.10,   0.53,   0.56,  99.90,   0.13,
01/21 14Z,  -0.10,   1.08,   1.03,  99.90,   0.05,
01/21 15Z,  -0.10,   1.75,   1.62,  99.90,  -0.03,
01/21 16Z,  -0.10,   2.38,   2.13,  99.90,  -0.15,
01/21 17Z,  -0.10,   2.91,   2.59,  99.90,  -0.22,
01/21 18Z,  -0.10,   3.30,   2.95,  99.90,  -0.25,
01/21 19Z,  -0.10,   3.40,   3.00,  99.90,  -0.30,  (max)
01/21 20Z,  -0.10,   3.09,   2.63,  99.90,  -0.36,
01/21 21Z,  -0.10,   2.43,   2.00,  99.90,  -0.33,
01/21 22Z,  -0.10,   1.59,   1.17,  99.90,  -0.32,
01/21 23Z,   0.00,   0.76,   0.36,  99.90,  -0.40,
01/22 00Z,  -0.20,   0.16,  -0.14,  99.90,  -0.10,
01/22 01Z,  -0.20,   0.00,  -0.19,  99.90,   0.01,  (min)
01/22 02Z,  -0.20,   0.32,   0.11,  99.90,  -0.01,
01/22 03Z,  -0.20,   0.89,   0.58,  99.90,  -0.11,
01/22 04Z,  -0.20,   1.50,   1.13,  99.90,  -0.17,
01/22 05Z,  -0.30,   2.06,   1.66,  99.90,  -0.10,
01/22 06Z,  -0.30,   2.55,   2.13,  99.90,  -0.12,
01/22 07Z,  -0.30,   2.84,   2.44,  99.90,  -0.10,
01/22 08Z,  -0.30,   2.79,   2.51,  99.90,   0.02,  (max)
01/22 09Z,  -0.30,   2.37,   2.14,  99.90,   0.07,
01/22 10Z,  -0.20,   1.71,   1.55,  99.90,   0.04,
01/22 11Z,  -0.20,   1.01,   0.85,  99.90,   0.04,
01/22 12Z,  -0.20,   0.45,   0.26,  99.90,   0.01,  (min)
01/22 13Z,  -0.10,   0.26,   0.34,  99.90,   0.18,
01/22 14Z,  -0.10,   0.55,   0.75,  99.90,   0.30,
01/22 15Z,  -0.10,   1.16,   1.34,  99.90,   0.28,
01/22 16Z,  -0.20,   1.84,   1.87,  99.90,   0.23,
01/22 17Z,  -0.30,   2.44,   2.44,  99.90,   0.30,
01/22 18Z,   0.00,   2.93,   3.04,  99.90,   0.11,
01/22 19Z,   0.00,   3.26,   3.47,  99.90,   0.21,
01/22 20Z,   0.00,   3.26,   3.53,  99.90,   0.27,  (max)
01/22 21Z,   0.00,   2.84,   3.06,  99.90,   0.22,
01/22 22Z,   0.00,   2.12,   2.37,  99.90,   0.25,
01/22 23Z,   0.00,   1.28,   1.54,  99.90,   0.26,
01/23 00Z,   0.00,   0.51,   0.64,  99.90,   0.13,
01/23 01Z,   0.00,   0.05,   0.17,  99.90,   0.12,  (min)
01/23 02Z,   0.00,   0.07,   0.30,  99.90,   0.23,
01/23 03Z,   0.00,   0.53,   0.82,  99.90,   0.29,
01/23 04Z,   0.00,   1.19,   1.45,  99.90,   0.26,
01/23 05Z,   0.00,   1.83,   2.05,  99.90,   0.22,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
01/23 06Z,   0.00,   2.39,  99.90,   2.59,   0.21,
01/23 07Z,   0.00,   2.84,  99.90,   3.03,   0.19,
01/23 08Z,   0.00,   3.04,  99.90,   3.22,   0.18,  (max)
01/23 09Z,   0.00,   2.86,  99.90,   3.03,   0.17,
01/23 10Z,   0.00,   2.32,  99.90,   2.48,   0.16,
01/23 11Z,   0.00,   1.58,  99.90,   1.73,   0.14,
01/23 12Z,   0.00,   0.85,  99.90,   0.98,   0.13,
01/23 13Z,   0.00,   0.32,  99.90,   0.43,   0.12,
01/23 14Z,   0.00,   0.20,  99.90,   0.30,   0.11,  (min)
01/23 15Z,   0.00,   0.55,  99.90,   0.64,   0.09,
01/23 16Z,   0.00,   1.20,  99.90,   1.27,   0.08,
01/23 17Z,   0.10,   1.86,  99.90,   2.03,   0.07,
01/23 18Z,   0.10,   2.42,  99.90,   2.59,   0.07,
01/23 19Z,   0.10,   2.88,  99.90,   3.05,   0.07,
01/23 20Z,   0.00,   3.15,  99.90,   3.21,   0.07,  (max)
01/23 21Z,   0.00,   3.06,  99.90,   3.13,   0.07,
01/23 22Z,   0.00,   2.58,  99.90,   2.65,   0.07,
01/23 23Z,   0.00,   1.84,  99.90,   1.91,   0.07,
01/24 00Z,   0.00,   1.03,  99.90,   1.10,   0.07,
01/24 01Z,  -0.20,   0.36,  99.90,   0.22,   0.07,
01/24 02Z,  -0.20,   0.03,  99.90,  -0.10,   0.07,  (min)
01/24 03Z,  -0.30,   0.21,  99.90,  -0.03,   0.07,
01/24 04Z,  -0.30,   0.78,  99.90,   0.55,   0.07,
01/24 05Z,  -0.30,   1.50,  99.90,   1.26,   0.07,
01/24 06Z,  -0.30,   2.15,  99.90,   1.91,   0.07,
01/24 07Z,  -0.40,   2.69,  99.90,   2.36,   0.07,
01/24 08Z,  -0.50,   3.10,  99.90,   2.66,   0.07,
01/24 09Z,  -0.60,   3.21,  99.90,   2.68,   0.07,  (max)
01/24 10Z,  -0.50,   2.92,  99.90,   2.49,   0.07,
01/24 11Z,  -0.40,   2.28,  99.90,   1.95,   0.07,
01/24 12Z,  -0.20,   1.49,  99.90,   1.36,   0.07,
01/24 13Z,  -0.10,   0.73,  99.90,   0.70,   0.07,
01/24 14Z,  -0.10,   0.22,  99.90,   0.18,   0.07,  (min)
01/24 15Z,   0.00,   0.14,  99.90,   0.21,   0.07,
01/24 16Z,   0.00,   0.53,  99.90,   0.60,   0.07,
01/24 17Z,   0.00,   1.17,  99.90,   1.24,   0.07,
01/24 18Z,   0.00,   1.80,  99.90,   1.87,   0.07,
01/24 19Z,   0.10,   2.34,  99.90,   2.50,   0.07,
01/24 20Z,   0.10,   2.76,  99.90,   2.93,   0.07,
01/24 21Z,   0.10,   2.98,  99.90,   3.15,   0.07,  (max)
01/24 22Z,   0.10,   2.85,  99.90,   3.01,   0.07,
01/24 23Z,   0.10,   2.34,  99.90,   2.51,   0.07,
01/25 00Z,   0.10,   1.62,  99.90,   1.78,   0.07,
01/25 01Z,   0.10,   0.87,  99.90,   1.03,   0.07,
01/25 02Z,   0.10,   0.28,  99.90,   0.45,   0.07,
01/25 03Z,   0.00,   0.08,  99.90,   0.15,   0.07,  (min)
01/25 04Z,   0.00,   0.37,  99.90,   0.44,   0.07,
01/25 05Z,   0.10,   1.03,  99.90,   1.20,   0.07,
01/25 06Z,   0.10,   1.77,  99.90,   1.94,   0.07,
01/25 07Z,   0.00,   2.42,  99.90,   2.49,   0.07,
01/25 08Z,   0.10,   2.96,  99.90,   3.13,   0.07,
01/25 09Z,   0.00,   3.32,  99.90,   3.39,   0.07,
01/25 10Z,   0.00,   3.36,  99.90,   3.42,   0.07,  (max)
01/25 11Z,   0.10,   2.98,  99.90,   3.14,   0.07,
01/25 12Z,   0.10,   2.28,  99.90,   2.44,   0.07,
01/25 13Z,   0.10,   1.44,  99.90,   1.61,   0.07,
01/25 14Z,   0.10,   0.66,  99.90,   0.83,   0.07,
01/25 15Z,   0.10,   0.15,  99.90,   0.31,   0.07,
01/25 16Z,   0.10,   0.09,  99.90,   0.26,   0.07,  (min)
01/25 17Z,   0.10,   0.48,  99.90,   0.65,   0.07,
01/25 18Z,   0.20,   1.09,  99.90,   1.35,   0.07,
01/25 19Z,   0.20,   1.68,  99.90,   1.95,   0.07,
01/25 20Z,   0.30,   2.20,  99.90,   2.56,   0.07,
01/25 21Z,   0.30,   2.61,  99.90,   2.98,   0.07,
01/25 22Z,   0.20,   2.80,  99.90,   3.07,   0.07,  (max)
01/25 23Z,   0.30,   2.64,  99.90,   3.01,   0.07,
01/26 00Z,   0.40,   2.15,  99.90,   2.61,   0.07,
01/26 01Z,   0.60,   1.47,  99.90,   2.13,   0.07,
01/26 02Z,   0.70,   0.78,  99.90,   1.55,   0.07,
01/26 03Z,   0.70,   0.28,  99.90,   1.04,   0.07,  (min)
01/26 04Z,   0.90,   0.16,  99.90,   1.13,   0.07,
01/26 05Z,   1.00,   0.53,  99.90,   1.60,   0.07,
01/26 06Z,   1.30,   1.23,  99.90,   2.60,   0.07,
01/26 07Z,   1.60,   1.98,  99.90,   3.65,   0.07,
01/26 08Z,   1.60,   2.64,  99.90,   4.31,   0.07,
01/26 09Z,   1.60,   3.17,  99.90,   4.84,   0.07,  0.19 ft above HAT
01/26 10Z,   1.60,   3.50,  99.90,   5.17,   0.07,  0.52 ft above HAT
01/26 11Z,   1.90,   3.48,  99.90,   5.45,   0.07,  0.80 ft above HAT  (max)
01/26 12Z,   2.10,   3.05,  99.90,   5.22,   0.07,  0.57 ft above HAT
01/26 13Z,   2.10,   2.31,  99.90,   4.48,   0.07,
01/26 14Z,   2.00,   1.45,  99.90,   3.51,   0.07,
01/26 15Z,   2.10,   0.63,  99.90,   2.80,   0.07,
01/26 16Z,   2.20,   0.10,  99.90,   2.37,   0.07,
01/26 17Z,   2.10,   0.03,  99.90,   2.19,   0.07,  (min)
01/26 18Z,   2.00,   0.39,  99.90,   2.46,   0.07,
01/26 19Z,   2.00,   0.97,  99.90,   3.03,   0.07,
01/26 20Z,   2.00,   1.53,  99.90,   3.60,   0.07,
01/26 21Z,   2.00,   2.04,  99.90,   4.10,   0.07,
01/26 22Z,   2.00,   2.45,  99.90,   4.52,   0.07,
01/26 23Z,   1.90,   2.64,  99.90,   4.61,   0.07,  (max)
01/27 00Z,   1.90,   2.49,  99.90,   4.46,   0.07,