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
#Boston, MA : 04/20/2025 12:21:00 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/18 12Z,   0.20,   2.38,   2.48,  99.90,  -0.10,
04/18 13Z,   0.20,   1.16,   1.26,  99.90,  -0.10,
04/18 14Z,   0.20,   0.97,   1.18,  99.90,   0.01,  (min)
04/18 15Z,   0.20,   1.97,   2.17,  99.90,   0.00,
04/18 16Z,   0.20,   3.56,   3.54,  99.90,  -0.22,
04/18 17Z,   0.20,   5.19,   5.14,  99.90,  -0.25,
04/18 18Z,   0.10,   6.74,   6.86,  99.90,   0.02,
04/18 19Z,   0.20,   7.94,   8.10,  99.90,  -0.04,
04/18 20Z,   0.20,   8.32,   8.32,  99.90,  -0.20,  (max)
04/18 21Z,   0.10,   7.74,   7.71,  99.90,  -0.13,
04/18 22Z,   0.20,   6.47,   6.59,  99.90,  -0.08,
04/18 23Z,   0.20,   4.91,   4.99,  99.90,  -0.12,
04/19 00Z,   0.10,   3.44,   3.47,  99.90,  -0.07,
04/19 01Z,   0.10,   2.32,   2.33,  99.90,  -0.09,
04/19 02Z,   0.10,   1.99,   2.12,  99.90,   0.03,  (min)
04/19 03Z,   0.10,   2.82,   3.15,  99.90,   0.23,
04/19 04Z,   0.00,   4.46,   4.45,  99.90,  -0.01,
04/19 05Z,   0.00,   6.20,   6.39,  99.90,   0.19,
04/19 06Z,   0.00,   7.73,   7.96,  99.90,   0.23,
04/19 07Z,   0.00,   8.92,   9.12,  99.90,   0.20,
04/19 08Z,   0.00,   9.39,   9.61,  99.90,   0.22,  (max)
04/19 09Z,   0.00,   8.83,   8.98,  99.90,   0.15,
04/19 10Z,   0.00,   7.44,   7.67,  99.90,   0.23,
04/19 11Z,   0.10,   5.62,   5.90,  99.90,   0.18,
04/19 12Z,   0.10,   3.78,   4.03,  99.90,   0.15,
04/19 13Z,   0.10,   2.21,   2.27,  99.90,  -0.04,
04/19 14Z,   0.10,   1.22,   1.31,  99.90,  -0.01,  (min)
04/19 15Z,   0.10,   1.28,   1.67,  99.90,   0.29,
04/19 16Z,   0.00,   2.40,   2.39,  99.90,  -0.01,
04/19 17Z,   0.00,   3.95,   3.81,  99.90,  -0.14,
04/19 18Z,   0.00,   5.47,   5.67,  99.90,   0.20,
04/19 19Z,   0.00,   6.89,   7.05,  99.90,   0.16,
04/19 20Z,   0.00,   7.92,   8.08,  99.90,   0.16,
04/19 21Z,   0.00,   8.12,   8.11,  99.90,  -0.01,  (max)
04/19 22Z,   0.00,   7.42,   7.55,  99.90,   0.13,
04/19 23Z,   0.00,   6.13,   6.29,  99.90,   0.16,
04/20 00Z,   0.00,   4.65,   4.70,  99.90,   0.05,
04/20 01Z,  -0.10,   3.30,   3.45,  99.90,   0.25,
04/20 02Z,  -0.20,   2.33,   2.43,  99.90,   0.30,
04/20 03Z,  -0.30,   2.18,   2.42,  99.90,   0.54,  (min)
04/20 04Z,  -0.10,   3.15,   3.26,  99.90,   0.21,
04/20 05Z,  -0.20,   4.78,   4.81,  99.90,   0.23,
04/20 06Z,  -0.30,   6.42,   6.17,  99.90,   0.05,
04/20 07Z,  -0.30,   7.86,   8.09,  99.90,   0.53,
04/20 08Z,  -0.30,   8.95,   8.93,  99.90,   0.28,
04/20 09Z,  -0.30,   9.26,   9.15,  99.90,   0.19,  (max)
04/20 10Z,  -0.20,   8.59,   8.43,  99.90,   0.04,
04/20 11Z,  -0.30,   7.15,   6.95,  99.90,   0.10,
04/20 12Z,  -0.20,   5.37,   5.22,  99.90,   0.05,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/20 13Z,  -0.20,   3.62,  99.90,   3.47,   0.05,
04/20 14Z,  -0.30,   2.13,  99.90,   1.89,   0.06,
04/20 15Z,  -0.30,   1.26,  99.90,   1.02,   0.06,  (min)
04/20 16Z,  -0.40,   1.45,  99.90,   1.11,   0.06,
04/20 17Z,  -0.40,   2.62,  99.90,   2.29,   0.07,
04/20 18Z,  -0.50,   4.13,  99.90,   3.70,   0.07,
04/20 19Z,  -0.40,   5.62,  99.90,   5.30,   0.07,
04/20 20Z,  -0.30,   7.02,  99.90,   6.80,   0.08,
04/20 21Z,  -0.20,   7.98,  99.90,   7.86,   0.08,
04/20 22Z,  -0.20,   8.08,  99.90,   7.97,   0.08,  (max)
04/20 23Z,   0.00,   7.32,  99.90,   7.41,   0.09,
04/21 00Z,   0.00,   6.01,  99.90,   6.10,   0.09,
04/21 01Z,   0.00,   4.55,  99.90,   4.64,   0.09,
04/21 02Z,   0.00,   3.22,  99.90,   3.31,   0.09,
04/21 03Z,   0.00,   2.28,  99.90,   2.37,   0.09,
04/21 04Z,   0.00,   2.21,  99.90,   2.30,   0.09,  (min)
04/21 05Z,   0.00,   3.23,  99.90,   3.32,   0.09,
04/21 06Z,   0.00,   4.84,  99.90,   4.93,   0.09,
04/21 07Z,   0.00,   6.44,  99.90,   6.53,   0.09,
04/21 08Z,   0.00,   7.90,  99.90,   7.99,   0.09,
04/21 09Z,   0.00,   8.99,  99.90,   9.08,   0.09,
04/21 10Z,   0.00,   9.25,  99.90,   9.34,   0.09,  (max)
04/21 11Z,   0.20,   8.53,  99.90,   8.82,   0.09,
04/21 12Z,   0.30,   7.07,  99.90,   7.46,   0.09,
04/21 13Z,   0.40,   5.29,  99.90,   5.78,   0.09,
04/21 14Z,   0.40,   3.53,  99.90,   4.02,   0.09,
04/21 15Z,   0.40,   2.02,  99.90,   2.51,   0.09,
04/21 16Z,   0.40,   1.17,  99.90,   1.66,   0.09,  (min)
04/21 17Z,   0.40,   1.44,  99.90,   1.93,   0.09,
04/21 18Z,   0.40,   2.66,  99.90,   3.15,   0.09,
04/21 19Z,   0.50,   4.20,  99.90,   4.79,   0.09,
04/21 20Z,   0.50,   5.77,  99.90,   6.36,   0.09,
04/21 21Z,   0.60,   7.25,  99.90,   7.94,   0.09,
04/21 22Z,   0.70,   8.22,  99.90,   9.01,   0.09,
04/21 23Z,   0.80,   8.27,  99.90,   9.16,   0.09,  (max)
04/22 00Z,   0.80,   7.44,  99.90,   8.33,   0.09,
04/22 01Z,   0.80,   6.07,  99.90,   6.96,   0.09,
04/22 02Z,   0.90,   4.53,  99.90,   5.52,   0.09,
04/22 03Z,   0.80,   3.09,  99.90,   3.98,   0.09,
04/22 04Z,   0.80,   2.06,  99.90,   2.95,   0.09,
04/22 05Z,   0.70,   1.99,  99.90,   2.78,   0.09,  (min)
04/22 06Z,   0.70,   3.04,  99.90,   3.83,   0.09,
04/22 07Z,   0.70,   4.67,  99.90,   5.46,   0.09,
04/22 08Z,   0.70,   6.35,  99.90,   7.14,   0.09,
04/22 09Z,   0.70,   7.94,  99.90,   8.73,   0.09,
04/22 10Z,   0.60,   9.12,  99.90,   9.81,   0.09,
04/22 11Z,   0.70,   9.40,  99.90,  10.19,   0.09,  (max)
04/22 12Z,   0.60,   8.65,  99.90,   9.34,   0.09,
04/22 13Z,   0.60,   7.14,  99.90,   7.83,   0.09,
04/22 14Z,   0.60,   5.29,  99.90,   5.99,   0.09,
04/22 15Z,   0.60,   3.42,  99.90,   4.11,   0.09,
04/22 16Z,   0.60,   1.80,  99.90,   2.49,   0.09,
04/22 17Z,   0.60,   0.93,  99.90,   1.62,   0.09,  (min)
04/22 18Z,   0.60,   1.27,  99.90,   1.96,   0.09,
04/22 19Z,   0.60,   2.59,  99.90,   3.28,   0.09,
04/22 20Z,   0.70,   4.26,  99.90,   5.05,   0.09,
04/22 21Z,   0.70,   6.02,  99.90,   6.81,   0.09,
04/22 22Z,   0.70,   7.68,  99.90,   8.47,   0.09,
04/22 23Z,   0.60,   8.69,  99.90,   9.38,   0.09,  (max)
04/23 00Z,   0.60,   8.68,  99.90,   9.37,   0.09,
04/23 01Z,   0.60,   7.74,  99.90,   8.43,   0.09,
04/23 02Z,   0.50,   6.22,  99.90,   6.81,   0.09,
04/23 03Z,   0.40,   4.48,  99.90,   4.97,   0.09,
04/23 04Z,   0.30,   2.80,  99.90,   3.19,   0.09,
04/23 05Z,   0.20,   1.61,  99.90,   1.90,   0.09,
04/23 06Z,   0.20,   1.52,  99.90,   1.81,   0.09,  (min)
04/23 07Z,   0.20,   2.64,  99.90,   2.93,   0.09,
04/23 08Z,   0.30,   4.37,  99.90,   4.76,   0.09,
04/23 09Z,   0.30,   6.24,  99.90,   6.63,   0.09,
04/23 10Z,   0.40,   8.06,  99.90,   8.55,   0.09,
04/23 11Z,   0.50,   9.38,  99.90,   9.97,   0.09,
04/23 12Z,   0.50,   9.68,  99.90,  10.27,   0.09,  (max)
04/23 13Z,   0.50,   8.88,  99.90,   9.47,   0.09,
04/23 14Z,   0.40,   7.28,  99.90,   7.77,   0.09,
04/23 15Z,   0.50,   5.28,  99.90,   5.87,   0.09,
04/23 16Z,   0.40,   3.21,  99.90,   3.70,   0.09,
04/23 17Z,   0.40,   1.42,  99.90,   1.91,   0.09,
04/23 18Z,   0.40,   0.54,  99.90,   1.03,   0.09,  (min)
04/23 19Z,   0.40,   1.01,  99.90,   1.50,   0.09,
04/23 20Z,   0.40,   2.51,  99.90,   3.00,   0.09,
04/23 21Z,   0.40,   4.42,  99.90,   4.92,   0.09,
04/23 22Z,   0.40,   6.48,  99.90,   6.97,   0.09,
04/23 23Z,   0.40,   8.33,  99.90,   8.82,   0.09,
04/24 00Z,   0.40,   9.37,  99.90,   9.86,   0.09,