EXTRA-TROPICAL  STORM  SURGE
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Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
Mid-Atlantic
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Northwest
Alaska
Gulf of Alaska
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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
#Boston, MA : 12/11/2025 04:22:25 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/09 12Z,   0.30,  -8.98,  -8.42,  99.90,   0.26,
12/09 13Z,   0.30,  -9.94,  -9.60,  99.90,   0.04,  (min)
12/09 14Z,   0.30,  -9.35,  -9.05,  99.90,   0.00,
12/09 15Z,   0.30,  -7.64,  -7.27,  99.90,   0.07,
12/09 16Z,   0.30,  -5.38,  -5.17,  99.90,  -0.09,
12/09 17Z,   0.30,  -2.91,  -2.73,  99.90,  -0.12,
12/09 18Z,   0.40,  -0.76,  -0.57,  99.90,  -0.21,
12/09 19Z,   0.40,   0.39,   0.58,  99.90,  -0.21,  (max)
12/09 20Z,   0.30,   0.23,   0.20,  99.90,  -0.33,
12/09 21Z,   0.30,  -1.09,  -1.17,  99.90,  -0.38,
12/09 22Z,   0.30,  -3.22,  -3.16,  99.90,  -0.24,
12/09 23Z,   0.30,  -5.81,  -5.59,  99.90,  -0.08,
12/10 00Z,   0.20,  -8.43,  -8.03,  99.90,   0.20,
12/10 01Z,   0.10, -10.34, -10.32,  99.90,  -0.08,
12/10 02Z,   0.00, -10.80, -10.76,  99.90,   0.04,  (min)
12/10 03Z,   0.00,  -9.88,  -9.63,  99.90,   0.25,
12/10 04Z,   0.00,  -8.13,  -7.90,  99.90,   0.23,
12/10 05Z,   0.00,  -5.88,  -5.75,  99.90,   0.13,
12/10 06Z,  -0.10,  -3.48,  -3.40,  99.90,   0.18,
12/10 07Z,  -0.20,  -1.63,  -1.50,  99.90,   0.33,
12/10 08Z,  -0.20,  -0.87,  -0.47,  99.90,   0.60,  (max)
12/10 09Z,  -0.20,  -1.28,  -1.10,  99.90,   0.38,
12/10 10Z,  -0.30,  -2.62,  -2.20,  99.90,   0.72,
12/10 11Z,  -0.30,  -4.57,  -4.01,  99.90,   0.86,
12/10 12Z,   0.00,  -6.79,  -6.31,  99.90,   0.48,
12/10 13Z,   0.00,  -8.73,  -8.24,  99.90,   0.49,
12/10 14Z,   0.00,  -9.56,  -9.21,  99.90,   0.35,  (min)
12/10 15Z,   0.00,  -8.98,  -8.56,  99.90,   0.42,
12/10 16Z,   0.00,  -7.47,  -6.92,  99.90,   0.55,
12/10 17Z,   0.00,  -5.46,  -5.01,  99.90,   0.45,
12/10 18Z,   0.30,  -3.20,  -2.88,  99.90,   0.02,
12/10 19Z,   0.40,  -1.24,  -0.74,  99.90,   0.10,
12/10 20Z,   0.50,  -0.24,   0.43,  99.90,   0.17,  (max)
12/10 21Z,   0.60,  -0.42,   0.13,  99.90,  -0.05,
12/10 22Z,   0.50,  -1.63,  -0.97,  99.90,   0.16,
12/10 23Z,   0.50,  -3.56,  -2.76,  99.90,   0.30,
12/11 00Z,   0.40,  -5.91,  -5.01,  99.90,   0.50,
12/11 01Z,   0.50,  -8.27,  -7.14,  99.90,   0.63,
12/11 02Z,   0.40,  -9.91,  -8.81,  99.90,   0.70,
12/11 03Z,   0.30, -10.21,  -9.59,  99.90,   0.32,  (min)
12/11 04Z,   0.30,  -9.31,  -8.45,  99.90,   0.56,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/11 05Z,   0.30,  -7.71,  99.90,  -6.89,   0.53,
12/11 06Z,   0.40,  -5.61,  99.90,  -4.73,   0.49,
12/11 07Z,   0.50,  -3.38,  99.90,  -2.43,   0.45,
12/11 08Z,   0.50,  -1.70,  99.90,  -0.79,   0.41,
12/11 09Z,   0.40,  -1.05,  99.90,  -0.28,   0.37,  (max)
12/11 10Z,   0.40,  -1.48,  99.90,  -0.75,   0.33,
12/11 11Z,   0.40,  -2.74,  99.90,  -2.05,   0.29,
12/11 12Z,   0.30,  -4.56,  99.90,  -4.01,   0.25,
12/11 13Z,   0.30,  -6.66,  99.90,  -6.15,   0.21,
12/11 14Z,   0.30,  -8.47,  99.90,  -8.00,   0.17,
12/11 15Z,   0.30,  -9.22,  99.90,  -8.79,   0.13,  (min)
12/11 16Z,   0.20,  -8.73,  99.90,  -8.43,   0.10,
12/11 17Z,   0.20,  -7.43,  99.90,  -7.13,   0.10,
12/11 18Z,   0.00,  -5.64,  99.90,  -5.55,   0.10,
12/11 19Z,   0.00,  -3.56,  99.90,  -3.47,   0.10,
12/11 20Z,  -0.10,  -1.76,  99.90,  -1.76,   0.10,
12/11 21Z,  -0.10,  -0.85,  99.90,  -0.86,   0.10,  (max)
12/11 22Z,  -0.20,  -1.02,  99.90,  -1.13,   0.10,
12/11 23Z,  -0.30,  -2.10,  99.90,  -2.30,   0.10,
12/12 00Z,  -0.40,  -3.82,  99.90,  -4.12,   0.10,
12/12 01Z,  -0.40,  -5.94,  99.90,  -6.24,   0.10,
12/12 02Z,  -0.50,  -8.07,  99.90,  -8.48,   0.10,
12/12 03Z,  -0.70,  -9.49,  99.90, -10.10,   0.10,
12/12 04Z,  -0.80,  -9.67,  99.90, -10.37,   0.10,  (min)
12/12 05Z,  -0.90,  -8.82,  99.90,  -9.62,   0.10,
12/12 06Z,  -0.90,  -7.34,  99.90,  -8.14,   0.10,
12/12 07Z,  -1.00,  -5.35,  99.90,  -6.25,   0.10,
12/12 08Z,  -1.20,  -3.24,  99.90,  -4.34,   0.10,
12/12 09Z,  -1.20,  -1.70,  99.90,  -2.81,   0.10,
12/12 10Z,  -1.20,  -1.16,  99.90,  -2.26,   0.10,  (max)
12/12 11Z,  -1.30,  -1.60,  99.90,  -2.80,   0.10,
12/12 12Z,  -1.20,  -2.79,  99.90,  -3.90,   0.10,
12/12 13Z,  -1.20,  -4.53,  99.90,  -5.64,   0.10,
12/12 14Z,  -1.10,  -6.56,  99.90,  -7.57,   0.10,
12/12 15Z,  -1.10,  -8.30,  99.90,  -9.30,   0.10,
12/12 16Z,  -1.10,  -9.01,  99.90, -10.02,   0.10,  (min)
12/12 17Z,  -1.10,  -8.62,  99.90,  -9.62,   0.10,
12/12 18Z,  -1.10,  -7.51,  99.90,  -8.52,   0.10,
12/12 19Z,  -1.10,  -5.88,  99.90,  -6.89,   0.10,
12/12 20Z,  -1.10,  -3.91,  99.90,  -4.92,   0.10,
12/12 21Z,  -1.10,  -2.22,  99.90,  -3.22,   0.10,
12/12 22Z,  -1.10,  -1.37,  99.90,  -2.37,   0.10,  (max)
12/12 23Z,  -1.10,  -1.51,  99.90,  -2.51,   0.10,
12/13 00Z,  -1.10,  -2.46,  99.90,  -3.46,   0.10,
12/13 01Z,  -1.10,  -4.00,  99.90,  -5.01,   0.10,
12/13 02Z,  -1.10,  -5.94,  99.90,  -6.95,   0.10,
12/13 03Z,  -1.10,  -7.90,  99.90,  -8.90,   0.10,
12/13 04Z,  -1.00,  -9.13,  99.90, -10.03,   0.10,  (min)
12/13 05Z,  -0.90,  -9.21,  99.90, -10.01,   0.10,
12/13 06Z,  -0.80,  -8.40,  99.90,  -9.10,   0.10,
12/13 07Z,  -0.80,  -6.98,  99.90,  -7.69,   0.10,
12/13 08Z,  -0.60,  -5.05,  99.90,  -5.55,   0.10,
12/13 09Z,  -0.50,  -3.03,  99.90,  -3.44,   0.10,
12/13 10Z,  -0.30,  -1.63,  99.90,  -1.83,   0.10,
12/13 11Z,  -0.20,  -1.18,  99.90,  -1.29,   0.10,  (max)
12/13 12Z,   0.00,  -1.65,  99.90,  -1.56,   0.10,
12/13 13Z,   0.00,  -2.84,  99.90,  -2.74,   0.10,
12/13 14Z,   0.10,  -4.55,  99.90,  -4.36,   0.10,
12/13 15Z,   0.10,  -6.57,  99.90,  -6.37,   0.10,
12/13 16Z,   0.10,  -8.26,  99.90,  -8.07,   0.10,
12/13 17Z,   0.20,  -8.96,  99.90,  -8.67,   0.10,  (min)
12/13 18Z,   0.10,  -8.65,  99.90,  -8.45,   0.10,
12/13 19Z,   0.10,  -7.66,  99.90,  -7.47,   0.10,
12/13 20Z,   0.20,  -6.10,  99.90,  -5.80,   0.10,
12/13 21Z,   0.20,  -4.17,  99.90,  -3.88,   0.10,
12/13 22Z,   0.20,  -2.54,  99.90,  -2.25,   0.10,
12/13 23Z,   0.20,  -1.74,  99.90,  -1.44,   0.10,  (max)
12/14 00Z,   0.20,  -1.85,  99.90,  -1.55,   0.10,
12/14 01Z,   0.10,  -2.72,  99.90,  -2.52,   0.10,
12/14 02Z,   0.10,  -4.15,  99.90,  -3.95,   0.10,
12/14 03Z,   0.00,  -5.98,  99.90,  -5.89,   0.10,
12/14 04Z,   0.00,  -7.80,  99.90,  -7.71,   0.10,
12/14 05Z,   0.10,  -8.87,  99.90,  -8.68,   0.10,  (min)
12/14 06Z,   0.10,  -8.85,  99.90,  -8.66,   0.10,
12/14 07Z,   0.10,  -8.03,  99.90,  -7.83,   0.10,
12/14 08Z,   0.00,  -6.61,  99.90,  -6.51,   0.10,
12/14 09Z,   0.00,  -4.67,  99.90,  -4.58,   0.10,
12/14 10Z,   0.00,  -2.73,  99.90,  -2.64,   0.10,
12/14 11Z,   0.00,  -1.46,  99.90,  -1.37,   0.10,
12/14 12Z,  -0.10,  -1.14,  99.90,  -1.15,   0.10,  (max)
12/14 13Z,   0.00,  -1.69,  99.90,  -1.59,   0.10,
12/14 14Z,   0.00,  -2.92,  99.90,  -2.82,   0.10,
12/14 15Z,   0.00,  -4.69,  99.90,  -4.59,   0.10,
12/14 16Z,   0.10,  -6.74,  99.90,  -6.54,   0.10,
12/14 17Z,   0.10,  -8.40,  99.90,  -8.21,   0.10,
12/14 18Z,   0.20,  -9.06,  99.90,  -8.77,   0.10,
12/14 19Z,  99.90,  -8.77,  99.90,  99.90,   0.10,
12/14 20Z,  99.90,  -7.80,  99.90,  99.90,   0.10,
12/14 21Z,  99.90,  -6.21,  99.90,  99.90,   0.10,
12/14 22Z,  99.90,  -4.27,  99.90,  99.90,   0.10,
12/14 23Z,  99.90,  -2.69,  99.90,  99.90,   0.10,
12/15 00Z,  99.90,  -1.94,  99.90,  99.90,   0.10,