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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Gulf
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 : 04/30/2025 08:21:19 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/28 12Z,   0.30,   1.06,   1.44,  99.90,   0.08,
04/28 13Z,   0.30,   3.93,   4.04,  99.90,  -0.19,
04/28 14Z,   0.30,   6.98,   6.98,  99.90,  -0.30,
04/28 15Z,   0.30,   9.55,   9.61,  99.90,  -0.24,
04/28 16Z,   0.40,  10.86,  10.73,  99.90,  -0.53,  (max)
04/28 17Z,   0.40,  10.62,  10.34,  99.90,  -0.68,
04/28 18Z,   0.40,   9.02,   8.72,  99.90,  -0.70,
04/28 19Z,   0.40,   6.53,   6.30,  99.90,  -0.63,
04/28 20Z,   0.40,   3.66,   3.61,  99.90,  -0.45,
04/28 21Z,   0.50,   0.99,   1.06,  99.90,  -0.43,
04/28 22Z,   0.50,  -0.59,  -0.46,  99.90,  -0.37,  (min)
04/28 23Z,   0.50,  -0.34,   0.06,  99.90,  -0.10,
04/29 00Z,   0.30,   1.61,   2.16,  99.90,   0.25,
04/29 01Z,   0.30,   4.44,   4.73,  99.90,  -0.01,
04/29 02Z,   0.30,   7.52,   7.79,  99.90,  -0.03,
04/29 03Z,   0.20,  10.29,  10.55,  99.90,   0.06,
04/29 04Z,   0.20,  11.97,  12.06,  99.90,  -0.11,  (max)
04/29 05Z,   0.10,  12.06,  11.93,  99.90,  -0.23,
04/29 06Z,   0.10,  10.60,  10.47,  99.90,  -0.23,
04/29 07Z,   0.10,   8.02,   7.92,  99.90,  -0.20,
04/29 08Z,   0.10,   4.83,   4.87,  99.90,  -0.06,
04/29 09Z,   0.10,   1.59,   1.82,  99.90,   0.13,
04/29 10Z,   0.10,  -0.98,  -0.76,  99.90,   0.12,
04/29 11Z,   0.20,  -1.94,  -1.64,  99.90,   0.10,  (min)
04/29 12Z,   0.20,  -0.96,  -0.33,  99.90,   0.43,
04/29 13Z,   0.20,   1.32,   1.80,  99.90,   0.28,
04/29 14Z,   0.20,   4.21,   4.48,  99.90,   0.07,
04/29 15Z,   0.20,   7.22,   7.61,  99.90,   0.19,
04/29 16Z,   0.20,   9.63,  10.02,  99.90,   0.19,
04/29 17Z,   0.20,  10.73,  10.90,  99.90,  -0.03,  (max)
04/29 18Z,   0.30,  10.30,  10.48,  99.90,  -0.12,
04/29 19Z,   0.30,   8.61,   8.63,  99.90,  -0.28,
04/29 20Z,   0.30,   6.11,   6.23,  99.90,  -0.18,
04/29 21Z,   0.20,   3.31,   3.51,  99.90,   0.00,
04/29 22Z,   0.20,   0.82,   0.91,  99.90,  -0.11,
04/29 23Z,   0.10,  -0.47,  -0.32,  99.90,   0.05,  (min)
04/30 00Z,   0.10,   0.10,   0.50,  99.90,   0.30,
04/30 01Z,   0.00,   2.20,   2.67,  99.90,   0.47,
04/30 02Z,   0.00,   5.02,   5.20,  99.90,   0.18,
04/30 03Z,   0.00,   8.00,   8.25,  99.90,   0.25,
04/30 04Z,   0.00,  10.58,  10.82,  99.90,   0.24,
04/30 05Z,   0.00,  11.99,  11.99,  99.90,   0.00,  (max)
04/30 06Z,   0.00,  11.82,  11.63,  99.90,  -0.19,
04/30 07Z,   0.00,  10.21,   9.99,  99.90,  -0.22,
04/30 08Z,  -0.20,   7.58,   7.56,  99.90,   0.18,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/30 09Z,  -0.20,   4.44,  99.90,   4.41,   0.17,
04/30 10Z,  -0.20,   1.32,  99.90,   1.27,   0.15,
04/30 11Z,  -0.20,  -1.01,  99.90,  -1.08,   0.14,
04/30 12Z,  -0.20,  -1.69,  99.90,  -1.77,   0.12,  (min)
04/30 13Z,  -0.30,  -0.56,  99.90,  -0.75,   0.10,
04/30 14Z,  -0.20,   1.71,  99.90,   1.60,   0.09,
04/30 15Z,  -0.20,   4.49,  99.90,   4.36,   0.07,
04/30 16Z,  -0.20,   7.33,  99.90,   7.18,   0.06,
04/30 17Z,  -0.20,   9.52,  99.90,   9.35,   0.04,
04/30 18Z,  -0.10,  10.40,  99.90,  10.33,   0.02,  (max)
04/30 19Z,  -0.10,   9.85,  99.90,   9.76,   0.01,
04/30 20Z,  -0.10,   8.15,  99.90,   8.04,  -0.01,
04/30 21Z,   0.00,   5.75,  99.90,   5.74,  -0.01,
04/30 22Z,   0.00,   3.12,  99.90,   3.11,  -0.01,
04/30 23Z,   0.00,   0.87,  99.90,   0.86,  -0.01,
05/01 00Z,   0.00,  -0.12,  99.90,  -0.13,  -0.01,  (min)
05/01 01Z,   0.10,   0.66,  99.90,   0.75,  -0.01,
05/01 02Z,   0.10,   2.76,  99.90,   2.85,  -0.01,
05/01 03Z,   0.20,   5.44,  99.90,   5.63,  -0.01,
05/01 04Z,   0.10,   8.21,  99.90,   8.31,  -0.01,
05/01 05Z,   0.10,  10.54,  99.90,  10.63,  -0.01,
05/01 06Z,   0.00,  11.69,  99.90,  11.68,  -0.01,  (max)
05/01 07Z,   0.00,  11.35,  99.90,  11.34,  -0.01,
05/01 08Z,   0.00,   9.71,  99.90,   9.70,  -0.01,
05/01 09Z,   0.10,   7.17,  99.90,   7.26,  -0.01,
05/01 10Z,   0.20,   4.21,  99.90,   4.40,  -0.01,
05/01 11Z,   0.30,   1.31,  99.90,   1.61,  -0.01,
05/01 12Z,   0.40,  -0.74,  99.90,  -0.35,  -0.01,
05/01 13Z,   0.50,  -1.18,  99.90,  -0.69,  -0.01,  (min)
05/01 14Z,   0.50,  -0.00,  99.90,   0.49,  -0.01,
05/01 15Z,   0.50,   2.12,  99.90,   2.61,  -0.01,
05/01 16Z,   0.50,   4.69,  99.90,   5.18,  -0.01,
05/01 17Z,   0.50,   7.30,  99.90,   7.79,  -0.01,
05/01 18Z,   0.50,   9.25,  99.90,   9.74,  -0.01,
05/01 19Z,   0.40,   9.96,  99.90,  10.35,  -0.01,  (max)
05/01 20Z,   0.40,   9.36,  99.90,   9.76,  -0.01,
05/01 21Z,   0.40,   7.75,  99.90,   8.14,  -0.01,
05/01 22Z,   0.40,   5.53,  99.90,   5.92,  -0.01,
05/01 23Z,   0.40,   3.12,  99.90,   3.51,  -0.01,
05/02 00Z,   0.40,   1.12,  99.90,   1.51,  -0.01,
05/02 01Z,   0.40,   0.37,  99.90,   0.76,  -0.01,  (min)
05/02 02Z,   0.40,   1.23,  99.90,   1.62,  -0.01,
05/02 03Z,   0.30,   3.20,  99.90,   3.49,  -0.01,
05/02 04Z,   0.30,   5.63,  99.90,   5.92,  -0.01,
05/02 05Z,   0.30,   8.15,  99.90,   8.44,  -0.01,
05/02 06Z,   0.30,  10.22,  99.90,  10.51,  -0.01,
05/02 07Z,   0.30,  11.17,  99.90,  11.46,  -0.01,  (max)
05/02 08Z,   0.30,  10.77,  99.90,  11.06,  -0.01,
05/02 09Z,   0.40,   9.20,  99.90,   9.59,  -0.01,
05/02 10Z,   0.40,   6.87,  99.90,   7.26,  -0.01,
05/02 11Z,   0.50,   4.17,  99.90,   4.66,  -0.01,
05/02 12Z,   0.50,   1.54,  99.90,   2.03,  -0.01,
05/02 13Z,   0.50,  -0.26,  99.90,   0.23,  -0.01,
05/02 14Z,   0.50,  -0.54,  99.90,  -0.05,  -0.01,  (min)
05/02 15Z,   0.50,   0.57,  99.90,   1.06,  -0.01,
05/02 16Z,   0.50,   2.47,  99.90,   2.96,  -0.01,
05/02 17Z,   0.50,   4.78,  99.90,   5.28,  -0.01,
05/02 18Z,   0.50,   7.16,  99.90,   7.65,  -0.01,
05/02 19Z,   0.50,   8.90,  99.90,   9.39,  -0.01,
05/02 20Z,   0.50,   9.50,  99.90,   9.99,  -0.01,  (max)
05/02 21Z,   0.40,   8.93,  99.90,   9.32,  -0.01,
05/02 22Z,   0.40,   7.47,  99.90,   7.86,  -0.01,
05/02 23Z,   0.30,   5.47,  99.90,   5.76,  -0.01,
05/03 00Z,   0.30,   3.29,  99.90,   3.58,  -0.01,
05/03 01Z,   0.20,   1.50,  99.90,   1.69,  -0.01,
05/03 02Z,   0.30,   0.89,  99.90,   1.19,  -0.01,  (min)
05/03 03Z,   0.20,   1.72,  99.90,   1.91,  -0.01,
05/03 04Z,   0.10,   3.45,  99.90,   3.54,  -0.01,
05/03 05Z,   0.10,   5.59,  99.90,   5.68,  -0.01,
05/03 06Z,   0.10,   7.86,  99.90,   7.95,  -0.01,
05/03 07Z,   0.10,   9.72,  99.90,   9.81,  -0.01,
05/03 08Z,   0.10,  10.56,  99.90,  10.65,  -0.01,  (max)
05/03 09Z,   0.10,  10.17,  99.90,  10.27,  -0.01,
05/03 10Z,   0.10,   8.78,  99.90,   8.87,  -0.01,
05/03 11Z,   0.20,   6.71,  99.90,   6.91,  -0.01,
05/03 12Z,   0.20,   4.29,  99.90,   4.48,  -0.01,
05/03 13Z,   0.20,   1.91,  99.90,   2.10,  -0.01,
05/03 14Z,   0.20,   0.31,  99.90,   0.50,  -0.01,
05/03 15Z,   0.10,   0.10,  99.90,   0.19,  -0.01,  (min)
05/03 16Z,   0.10,   1.06,  99.90,   1.15,  -0.01,
05/03 17Z,   0.10,   2.70,  99.90,   2.79,  -0.01,
05/03 18Z,   0.10,   4.79,  99.90,   4.88,  -0.01,
05/03 19Z,   0.10,   6.97,  99.90,   7.06,  -0.01,
05/03 20Z,   0.10,   8.56,  99.90,   8.65,  -0.01,
05/03 21Z,   0.10,   9.12,  99.90,   9.21,  -0.01,  (max)
05/03 22Z,   0.10,   8.63,  99.90,   8.72,  -0.01,
05/03 23Z,   0.20,   7.35,  99.90,   7.55,  -0.01,
05/04 00Z,   0.20,   5.56,  99.90,   5.75,  -0.01,