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
Status
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
#Ketchikan, AK : 04/11/2026 11:22:56 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/09 12Z,  -0.60,  -8.03,  -8.67,  99.90,  -0.04,
04/09 13Z,  -0.60,  -7.30,  -7.92,  99.90,  -0.02,
04/09 14Z,  -0.60,  -7.37,  -7.92,  99.90,   0.05,  (max)
04/09 15Z,  -0.60,  -8.30,  -8.73,  99.90,   0.17,
04/09 16Z,  -0.60,  -9.94, -10.33,  99.90,   0.21,
04/09 17Z,  -0.50, -11.97, -12.33,  99.90,   0.14,
04/09 18Z,  -0.50, -13.96, -14.33,  99.90,   0.13,
04/09 19Z,  -0.50, -15.53, -16.00,  99.90,   0.03,
04/09 20Z,  -0.50, -16.39, -16.94,  99.90,  -0.05,
04/09 21Z,  -0.50, -16.45, -17.02,  99.90,  -0.07,  (min)
04/09 22Z,  -0.50, -15.76, -16.28,  99.90,  -0.02,
04/09 23Z,  -0.50, -14.52, -15.00,  99.90,   0.02,
04/10 00Z,  -0.50, -13.02, -13.37,  99.90,   0.15,
04/10 01Z,  -0.50, -11.56, -11.82,  99.90,   0.24,
04/10 02Z,  -0.50, -10.45, -10.67,  99.90,   0.28,
04/10 03Z,  -0.50,  -9.87, -10.13,  99.90,   0.24,  (max)
04/10 04Z,  -0.50,  -9.91, -10.17,  99.90,   0.24,
04/10 05Z,  -0.50, -10.46, -10.69,  99.90,   0.27,
04/10 06Z,  -0.50, -11.29, -11.53,  99.90,   0.26,
04/10 07Z,  -0.50, -12.10, -12.26,  99.90,   0.34,
04/10 08Z,  -0.50, -12.60, -12.76,  99.90,   0.34,
04/10 09Z,  -0.50, -12.62, -12.79,  99.90,   0.33,  (min)
04/10 10Z,  -0.50, -12.09, -12.32,  99.90,   0.27,
04/10 11Z,  -0.40, -11.14, -11.43,  99.90,   0.11,
04/10 12Z,  -0.40,  -9.97, -10.29,  99.90,   0.08,
04/10 13Z,  -0.40,  -8.89,  -9.16,  99.90,   0.13,
04/10 14Z,  -0.40,  -8.19,  -8.42,  99.90,   0.17,
04/10 15Z,  -0.40,  -8.09,  -8.29,  99.90,   0.20,  (max)
04/10 16Z,  -0.40,  -8.71,  -8.88,  99.90,   0.23,
04/10 17Z,  -0.40,  -9.96, -10.13,  99.90,   0.23,
04/10 18Z,  -0.40, -11.64, -11.85,  99.90,   0.19,
04/10 19Z,  -0.40, -13.42, -13.64,  99.90,   0.18,
04/10 20Z,  -0.40, -14.96, -15.18,  99.90,   0.18,
04/10 21Z,  -0.40, -15.98, -16.17,  99.90,   0.21,
04/10 22Z,  -0.40, -16.32, -16.50,  99.90,   0.22,  (min)
04/10 23Z,  -0.40, -15.94, -16.06,  99.90,   0.28,
04/11 00Z,  -0.30, -14.94, -15.04,  99.90,   0.20,
04/11 01Z,  -0.30, -13.54, -13.59,  99.90,   0.25,
04/11 02Z,  -0.30, -12.01, -12.03,  99.90,   0.28,
04/11 03Z,  -0.30, -10.68, -10.66,  99.90,   0.32,
04/11 04Z,  -0.30,  -9.79,  -9.75,  99.90,   0.34,
04/11 05Z,  -0.30,  -9.51,  -9.48,  99.90,   0.33,  (max)
04/11 06Z,  -0.40,  -9.83,  -9.71,  99.90,   0.52,
04/11 07Z,  -0.40, -10.61, -10.48,  99.90,   0.53,
04/11 08Z,  -0.30, -11.58, -11.36,  99.90,   0.52,
04/11 09Z,  -0.30, -12.41, -12.25,  99.90,   0.46,
04/11 10Z,  -0.20, -12.83, -12.71,  99.90,   0.32,  (min)
04/11 11Z,  -0.20, -12.70, -12.67,  99.90,   0.23,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/11 12Z,  -0.20, -12.02,  99.90, -11.99,   0.23,
04/11 13Z,  -0.20, -10.93,  99.90, -10.92,   0.22,
04/11 14Z,  -0.20,  -9.72,  99.90,  -9.72,   0.21,
04/11 15Z,  -0.20,  -8.73,  99.90,  -8.73,   0.20,
04/11 16Z,  -0.20,  -8.25,  99.90,  -8.26,   0.19,  (max)
04/11 17Z,  -0.30,  -8.49,  99.90,  -8.61,   0.18,
04/11 18Z,  -0.30,  -9.48,  99.90,  -9.61,   0.17,
04/11 19Z,  -0.40, -11.08,  99.90, -11.31,   0.16,
04/11 20Z,  -0.40, -12.97,  99.90, -13.21,   0.16,
04/11 21Z,  -0.40, -14.78,  99.90, -15.03,   0.15,
04/11 22Z,  -0.30, -16.13,  99.90, -16.29,   0.14,
04/11 23Z,  -0.30, -16.76,  99.90, -16.93,   0.13,  (min)
04/12 00Z,  -0.20, -16.52,  99.90, -16.60,   0.13,
04/12 01Z,  -0.10, -15.48,  99.90, -15.45,   0.13,
04/12 02Z,  -0.10, -13.84,  99.90, -13.81,   0.13,
04/12 03Z,  -0.10, -11.94,  99.90, -11.91,   0.13,
04/12 04Z,  -0.10, -10.19,  99.90, -10.17,   0.13,
04/12 05Z,  -0.20,  -8.98,  99.90,  -9.05,   0.13,
04/12 06Z,  -0.20,  -8.55,  99.90,  -8.63,   0.13,  (max)
04/12 07Z,  -0.20,  -8.98,  99.90,  -9.05,   0.13,
04/12 08Z,  -0.30, -10.09,  99.90, -10.26,   0.13,
04/12 09Z,  -0.20, -11.55,  99.90, -11.62,   0.13,
04/12 10Z,  -0.20, -12.93,  99.90, -13.00,   0.13,
04/12 11Z,  -0.20, -13.82,  99.90, -13.89,   0.13,
04/12 12Z,  -0.20, -13.94,  99.90, -14.02,   0.13,  (min)
04/12 13Z,  -0.20, -13.25,  99.90, -13.32,   0.13,
04/12 14Z,  -0.20, -11.89,  99.90, -11.96,   0.13,
04/12 15Z,  -0.20, -10.23,  99.90, -10.30,   0.13,
04/12 16Z,  -0.30,  -8.72,  99.90,  -8.89,   0.13,
04/12 17Z,  -0.40,  -7.81,  99.90,  -8.08,   0.13,
04/12 18Z,  -0.40,  -7.79,  99.90,  -8.07,   0.13,  (max)
04/12 19Z,  -0.40,  -8.78,  99.90,  -9.05,   0.13,
04/12 20Z,  -0.40, -10.59,  99.90, -10.87,   0.13,
04/12 21Z,  -0.30, -12.88,  99.90, -13.05,   0.13,
04/12 22Z,  -0.10, -15.12,  99.90, -15.09,   0.13,
04/12 23Z,   0.00, -16.81,  99.90, -16.68,   0.13,
04/13 00Z,   0.00, -17.56,  99.90, -17.43,   0.13,  (min)
04/13 01Z,   0.00, -17.18,  99.90, -17.05,   0.13,
04/13 02Z,   0.00, -15.74,  99.90, -15.61,   0.13,
04/13 03Z,   0.00, -13.56,  99.90, -13.43,   0.13,
04/13 04Z,   0.00, -11.12,  99.90, -10.99,   0.13,
04/13 05Z,  -0.10,  -8.97,  99.90,  -8.94,   0.13,
04/13 06Z,  -0.20,  -7.61,  99.90,  -7.69,   0.13,
04/13 07Z,  -0.20,  -7.36,  99.90,  -7.43,   0.13,  (max)
04/13 08Z,  -0.10,  -8.26,  99.90,  -8.23,   0.13,
04/13 09Z,  -0.10, -10.05,  99.90, -10.02,   0.13,
04/13 10Z,   0.00, -12.24,  99.90, -12.11,   0.13,
04/13 11Z,   0.00, -14.22,  99.90, -14.09,   0.13,
04/13 12Z,   0.10, -15.44,  99.90, -15.21,   0.13,  (min)
04/13 13Z,   0.30, -15.54,  99.90, -15.12,   0.13,
04/13 14Z,   0.30, -14.48,  99.90, -14.05,   0.13,
04/13 15Z,   0.30, -12.54,  99.90, -12.11,   0.13,
04/13 16Z,   0.30, -10.22,  99.90,  -9.79,   0.13,
04/13 17Z,   0.20,  -8.15,  99.90,  -7.82,   0.13,
04/13 18Z,   0.10,  -6.91,  99.90,  -6.68,   0.13,  (max)
04/13 19Z,   0.00,  -6.88,  99.90,  -6.75,   0.13,
04/13 20Z,   0.00,  -8.13,  99.90,  -8.00,   0.13,
04/13 21Z,   0.00, -10.44,  99.90, -10.31,   0.13,
04/13 22Z,   0.10, -13.26,  99.90, -13.04,   0.13,
04/13 23Z,   0.20, -15.94,  99.90, -15.61,   0.13,
04/14 00Z,   0.30, -17.80,  99.90, -17.37,   0.13,
04/14 01Z,   0.30, -18.38,  99.90, -17.95,   0.13,  (min)
04/14 02Z,   0.40, -17.51,  99.90, -16.98,   0.13,
04/14 03Z,   0.30, -15.40,  99.90, -14.97,   0.13,
04/14 04Z,   0.30, -12.52,  99.90, -12.09,   0.13,
04/14 05Z,   0.20,  -9.56,  99.90,  -9.23,   0.13,
04/14 06Z,   0.10,  -7.20,  99.90,  -6.97,   0.13,
04/14 07Z,   0.00,  -6.02,  99.90,  -5.89,   0.13,  (max)
04/14 08Z,   0.00,  -6.31,  99.90,  -6.18,   0.13,
04/14 09Z,   0.00,  -8.01,  99.90,  -7.88,   0.13,
04/14 10Z,   0.00, -10.70,  99.90, -10.57,   0.13,
04/14 11Z,   0.00, -13.68,  99.90, -13.55,   0.13,
04/14 12Z,   0.10, -16.14,  99.90, -15.92,   0.13,
04/14 13Z,   0.10, -17.42,  99.90, -17.19,   0.13,  (min)
04/14 14Z,   0.10, -17.15,  99.90, -16.92,   0.13,
04/14 15Z,   0.10, -15.42,  99.90, -15.19,   0.13,
04/14 16Z,   0.00, -12.68,  99.90, -12.55,   0.13,
04/14 17Z,   0.00,  -9.66,  99.90,  -9.53,   0.13,
04/14 18Z,  -0.20,  -7.15,  99.90,  -7.22,   0.13,
04/14 19Z,  -0.30,  -5.81,  99.90,  -5.98,   0.13,  (max)
04/14 20Z,  -0.30,  -6.02,  99.90,  -6.19,   0.13,
04/14 21Z,  -0.30,  -7.79,  99.90,  -7.96,   0.13,
04/14 22Z,  -0.20, -10.72,  99.90, -10.79,   0.13,
04/14 23Z,  -0.20, -14.09,  99.90, -14.16,   0.13,
04/15 00Z,  -0.10, -17.04,  99.90, -17.01,   0.13,