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

  • This website is considered EXPERIMENTAL, is supported on an 8x5 basis, and has no guarantee of availability.
  • The data located HERE are considered OPERATIONAL and are supported on a 24x7 basis.
About
Manual
Disclaimer
Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
Mid-Atlantic
Southeast
Gulf
Northwest
Alaska
Gulf of Alaska
Status
Stations
Surge List
#Sitka, AK : 04/23/2026 02:22:03 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/21 06Z,  -0.10,  -9.58,  -9.87,  99.90,  -0.19,  (min)
04/21 07Z,  -0.10,  -8.66,  -9.01,  99.90,  -0.25,
04/21 08Z,  -0.20,  -6.95,  -7.28,  99.90,  -0.13,
04/21 09Z,  -0.10,  -4.88,  -5.29,  99.90,  -0.31,
04/21 10Z,  -0.10,  -2.98,  -3.41,  99.90,  -0.33,
04/21 11Z,  -0.10,  -1.78,  -2.21,  99.90,  -0.33,
04/21 12Z,  -0.10,  -1.66,  -2.11,  99.90,  -0.35,  (max)
04/21 13Z,  -0.10,  -2.73,  -3.17,  99.90,  -0.34,
04/21 14Z,  -0.20,  -4.85,  -5.19,  99.90,  -0.14,
04/21 15Z,  -0.20,  -7.60,  -8.00,  99.90,  -0.20,
04/21 16Z,  -0.20, -10.43, -10.78,  99.90,  -0.15,
04/21 17Z,  -0.20, -12.75, -13.15,  99.90,  -0.20,
04/21 18Z,  -0.10, -14.11, -14.57,  99.90,  -0.36,
04/21 19Z,  -0.10, -14.27, -14.71,  99.90,  -0.34,  (min)
04/21 20Z,  -0.20, -13.26, -13.70,  99.90,  -0.24,
04/21 21Z,  -0.20, -11.37, -11.84,  99.90,  -0.27,
04/21 22Z,  -0.20,  -9.06,  -9.65,  99.90,  -0.39,
04/21 23Z,  -0.20,  -6.89,  -7.52,  99.90,  -0.43,
04/22 00Z,  -0.10,  -5.31,  -5.93,  99.90,  -0.52,
04/22 01Z,  -0.20,  -4.60,  -5.25,  99.90,  -0.45,  (max)
04/22 02Z,  -0.20,  -4.82,  -5.40,  99.90,  -0.38,
04/22 03Z,  -0.20,  -5.77,  -6.28,  99.90,  -0.31,
04/22 04Z,  -0.30,  -7.07,  -7.57,  99.90,  -0.20,
04/22 05Z,  -0.30,  -8.28,  -8.76,  99.90,  -0.18,
04/22 06Z,  -0.20,  -8.99,  -9.52,  99.90,  -0.33,  (min)
04/22 07Z,  -0.20,  -8.93,  -9.42,  99.90,  -0.29,
04/22 08Z,  -0.30,  -8.06,  -8.63,  99.90,  -0.27,
04/22 09Z,  -0.30,  -6.58,  -7.18,  99.90,  -0.30,
04/22 10Z,  -0.40,  -4.86,  -5.57,  99.90,  -0.31,
04/22 11Z,  -0.40,  -3.34,  -4.05,  99.90,  -0.31,
04/22 12Z,  -0.30,  -2.45,  -3.22,  99.90,  -0.47,  (max)
04/22 13Z,  -0.30,  -2.50,  -3.30,  99.90,  -0.50,
04/22 14Z,  -0.40,  -3.55,  -4.32,  99.90,  -0.37,
04/22 15Z,  -0.40,  -5.45,  -6.24,  99.90,  -0.39,
04/22 16Z,  -0.50,  -7.86,  -8.63,  99.90,  -0.27,
04/22 17Z,  -0.50, -10.30, -11.14,  99.90,  -0.34,
04/22 18Z,  -0.40, -12.28, -13.05,  99.90,  -0.37,
04/22 19Z,  -0.40, -13.42, -14.30,  99.90,  -0.48,
04/22 20Z,  -0.40, -13.55, -14.34,  99.90,  -0.39,  (min)
04/22 21Z,  -0.50, -12.67, -13.57,  99.90,  -0.40,
04/22 22Z,  -0.50, -11.06, -11.91,  99.90,  -0.35,
04/22 23Z,  -0.50,  -9.08, -10.14,  99.90,  -0.56,
04/23 00Z,  -0.60,  -7.20,  -8.26,  99.90,  -0.46,
04/23 01Z,  -0.60,  -5.79,  -7.02,  99.90,  -0.63,
04/23 02Z,  -0.60,  -5.09,  -6.27,  99.90,  -0.58,  (max)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/23 03Z,  -0.60,  -5.17,  99.90,  -6.32,  -0.55,
04/23 04Z,  -0.50,  -5.86,  99.90,  -6.90,  -0.53,
04/23 05Z,  -0.50,  -6.88,  99.90,  -7.89,  -0.51,
04/23 06Z,  -0.50,  -7.87,  99.90,  -8.85,  -0.48,
04/23 07Z,  -0.50,  -8.47,  99.90,  -9.43,  -0.46,  (min)
04/23 08Z,  -0.50,  -8.48,  99.90,  -9.42,  -0.44,
04/23 09Z,  -0.50,  -7.85,  99.90,  -8.77,  -0.42,
04/23 10Z,  -0.50,  -6.72,  99.90,  -7.61,  -0.39,
04/23 11Z,  -0.60,  -5.36,  99.90,  -6.33,  -0.37,
04/23 12Z,  -0.60,  -4.14,  99.90,  -5.08,  -0.35,
04/23 13Z,  -0.60,  -3.41,  99.90,  -4.33,  -0.32,  (max)
04/23 14Z,  -0.70,  -3.42,  99.90,  -4.42,  -0.30,
04/23 15Z,  -0.70,  -4.25,  99.90,  -5.25,  -0.30,
04/23 16Z,  -0.70,  -5.80,  99.90,  -6.80,  -0.30,
04/23 17Z,  -0.70,  -7.79,  99.90,  -8.79,  -0.30,
04/23 18Z,  -0.70,  -9.86,  99.90, -10.86,  -0.30,
04/23 19Z,  -0.70, -11.59,  99.90, -12.59,  -0.30,
04/23 20Z,  -0.60, -12.66,  99.90, -13.56,  -0.30,
04/23 21Z,  -0.60, -12.88,  99.90, -13.78,  -0.30,  (min)
04/23 22Z,  -0.60, -12.24,  99.90, -13.14,  -0.30,
04/23 23Z,  -0.60, -10.92,  99.90, -11.82,  -0.30,
04/24 00Z,  -0.50,  -9.22,  99.90, -10.02,  -0.30,
04/24 01Z,  -0.60,  -7.51,  99.90,  -8.41,  -0.30,
04/24 02Z,  -0.60,  -6.13,  99.90,  -7.03,  -0.30,
04/24 03Z,  -0.70,  -5.34,  99.90,  -6.34,  -0.30,
04/24 04Z,  -0.70,  -5.21,  99.90,  -6.22,  -0.30,  (max)
04/24 05Z,  -0.80,  -5.68,  99.90,  -6.78,  -0.30,
04/24 06Z,  -0.80,  -6.52,  99.90,  -7.62,  -0.30,
04/24 07Z,  -0.80,  -7.44,  99.90,  -8.54,  -0.30,
04/24 08Z,  -0.70,  -8.14,  99.90,  -9.14,  -0.30,
04/24 09Z,  -0.70,  -8.39,  99.90,  -9.39,  -0.30,  (min)
04/24 10Z,  -0.70,  -8.10,  99.90,  -9.10,  -0.30,
04/24 11Z,  -0.70,  -7.32,  99.90,  -8.32,  -0.30,
04/24 12Z,  -0.70,  -6.25,  99.90,  -7.25,  -0.30,
04/24 13Z,  -0.70,  -5.19,  99.90,  -6.19,  -0.30,
04/24 14Z,  -0.70,  -4.43,  99.90,  -5.43,  -0.30,
04/24 15Z,  -0.80,  -4.23,  99.90,  -5.33,  -0.30,  (max)
04/24 16Z,  -0.80,  -4.73,  99.90,  -5.83,  -0.30,
04/24 17Z,  -0.80,  -5.87,  99.90,  -6.98,  -0.30,
04/24 18Z,  -0.80,  -7.50,  99.90,  -8.60,  -0.30,
04/24 19Z,  -0.80,  -9.29,  99.90, -10.39,  -0.30,
04/24 20Z,  -0.80, -10.90,  99.90, -12.00,  -0.30,
04/24 21Z,  -0.70, -12.01,  99.90, -13.01,  -0.30,
04/24 22Z,  -0.70, -12.39,  99.90, -13.39,  -0.30,  (min)
04/24 23Z,  -0.70, -11.97,  99.90, -12.97,  -0.30,
04/25 00Z,  -0.70, -10.87,  99.90, -11.87,  -0.30,
04/25 01Z,  -0.60,  -9.31,  99.90, -10.21,  -0.30,
04/25 02Z,  -0.60,  -7.63,  99.90,  -8.53,  -0.30,
04/25 03Z,  -0.60,  -6.18,  99.90,  -7.08,  -0.30,
04/25 04Z,  -0.70,  -5.23,  99.90,  -6.23,  -0.30,
04/25 05Z,  -0.70,  -4.94,  99.90,  -5.94,  -0.30,  (max)
04/25 06Z,  -0.70,  -5.30,  99.90,  -6.30,  -0.30,
04/25 07Z,  -0.70,  -6.13,  99.90,  -7.13,  -0.30,
04/25 08Z,  -0.70,  -7.18,  99.90,  -8.18,  -0.30,
04/25 09Z,  -0.60,  -8.14,  99.90,  -9.04,  -0.30,
04/25 10Z,  -0.60,  -8.73,  99.90,  -9.63,  -0.30,
04/25 11Z,  -0.60,  -8.78,  99.90,  -9.68,  -0.30,  (min)
04/25 12Z,  -0.60,  -8.27,  99.90,  -9.17,  -0.30,
04/25 13Z,  -0.60,  -7.35,  99.90,  -8.25,  -0.30,
04/25 14Z,  -0.60,  -6.26,  99.90,  -7.16,  -0.30,
04/25 15Z,  -0.70,  -5.32,  99.90,  -6.32,  -0.30,
04/25 16Z,  -0.70,  -4.82,  99.90,  -5.82,  -0.30,  (max)
04/25 17Z,  -0.70,  -4.94,  99.90,  -5.94,  -0.30,
04/25 18Z,  -0.70,  -5.75,  99.90,  -6.75,  -0.30,
04/25 19Z,  -0.70,  -7.11,  99.90,  -8.11,  -0.30,
04/25 20Z,  -0.60,  -8.77,  99.90,  -9.67,  -0.30,
04/25 21Z,  -0.60, -10.37,  99.90, -11.27,  -0.30,
04/25 22Z,  -0.50, -11.57,  99.90, -12.37,  -0.30,
04/25 23Z,  -0.50, -12.09,  99.90, -12.89,  -0.30,  (min)
04/26 00Z,  -0.50, -11.80,  99.90, -12.60,  -0.30,
04/26 01Z,  -0.50, -10.76,  99.90, -11.56,  -0.30,
04/26 02Z,  -0.50,  -9.19,  99.90,  -9.99,  -0.30,
04/26 03Z,  -0.50,  -7.42,  99.90,  -8.22,  -0.30,
04/26 04Z,  -0.60,  -5.84,  99.90,  -6.74,  -0.30,
04/26 05Z,  -0.60,  -4.78,  99.90,  -5.68,  -0.30,
04/26 06Z,  -0.60,  -4.45,  99.90,  -5.35,  -0.30,  (max)
04/26 07Z,  -0.60,  -4.87,  99.90,  -5.77,  -0.30,
04/26 08Z,  -0.50,  -5.90,  99.90,  -6.70,  -0.30,
04/26 09Z,  -0.50,  -7.24,  99.90,  -8.04,  -0.30,
04/26 10Z,  -0.40,  -8.55,  99.90,  -9.25,  -0.30,
04/26 11Z,  -0.40,  -9.47,  99.90, -10.17,  -0.30,
04/26 12Z,  -0.40,  -9.77,  99.90, -10.47,  -0.30,  (min)
04/26 13Z,  -0.40,  -9.38,  99.90, -10.08,  -0.30,
04/26 14Z,  -0.40,  -8.42,  99.90,  -9.12,  -0.30,
04/26 15Z,  -0.40,  -7.15,  99.90,  -7.85,  -0.30,
04/26 16Z,  -0.40,  -5.92,  99.90,  -6.62,  -0.30,
04/26 17Z,  -0.40,  -5.10,  99.90,  -5.80,  -0.30,
04/26 18Z,  -0.30,  -4.93,  99.90,  -5.53,  -0.30,