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 : 04/15/2026 13:20:21 GMT (units in feet MSL)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/13 18Z,   0.40,   2.66,   2.56,  99.90,  -0.50,
04/13 19Z,   0.40,   2.68,   2.60,  99.90,  -0.48,  (max)
04/13 20Z,   0.40,   1.95,   1.86,  99.90,  -0.49,
04/13 21Z,   0.40,   0.59,   0.52,  99.90,  -0.47,
04/13 22Z,   0.30,  -1.10,  -1.14,  99.90,  -0.34,
04/13 23Z,   0.30,  -2.73,  -2.75,  99.90,  -0.32,
04/14 00Z,   0.40,  -3.91,  -3.91,  99.90,  -0.40,
04/14 01Z,   0.40,  -4.33,  -4.36,  99.90,  -0.43,  (min)
04/14 02Z,   0.30,  -3.87,  -3.91,  99.90,  -0.34,
04/14 03Z,   0.30,  -2.63,  -2.69,  99.90,  -0.36,
04/14 04Z,   0.30,  -0.89,  -0.95,  99.90,  -0.36,
04/14 05Z,   0.20,   0.96,   0.94,  99.90,  -0.22,
04/14 06Z,   0.30,   2.47,   2.53,  99.90,  -0.24,
04/14 07Z,   0.30,   3.29,   3.35,  99.90,  -0.24,  (max)
04/14 08Z,   0.20,   3.23,   3.31,  99.90,  -0.12,
04/14 09Z,   0.20,   2.32,   2.50,  99.90,  -0.02,
04/14 10Z,   0.20,   0.82,   1.05,  99.90,   0.03,
04/14 11Z,   0.10,  -0.88,  -0.64,  99.90,   0.14,
04/14 12Z,   0.20,  -2.33,  -2.11,  99.90,   0.02,
04/14 13Z,   0.20,  -3.17,  -2.99,  99.90,  -0.02,
04/14 14Z,   0.20,  -3.15,  -3.06,  99.90,  -0.11,  (min)
04/14 15Z,   0.10,  -2.29,  -2.28,  99.90,  -0.09,
04/14 16Z,   0.10,  -0.81,  -0.80,  99.90,  -0.09,
04/14 17Z,   0.00,   0.90,   0.84,  99.90,  -0.06,
04/14 18Z,   0.10,   2.37,   2.28,  99.90,  -0.19,
04/14 19Z,   0.10,   3.21,   3.11,  99.90,  -0.20,  (max)
04/14 20Z,   0.10,   3.15,   3.07,  99.90,  -0.18,
04/14 21Z,   0.10,   2.18,   2.07,  99.90,  -0.21,
04/14 22Z,   0.00,   0.51,   0.46,  99.90,  -0.05,
04/14 23Z,   0.00,  -1.44,  -1.53,  99.90,  -0.09,
04/15 00Z,   0.10,  -3.20,  -3.31,  99.90,  -0.21,
04/15 01Z,   0.00,  -4.29,  -4.50,  99.90,  -0.21,
04/15 02Z,   0.00,  -4.43,  -4.68,  99.90,  -0.25,  (min)
04/15 03Z,   0.00,  -3.55,  -3.85,  99.90,  -0.30,
04/15 04Z,   0.00,  -1.84,  -2.16,  99.90,  -0.32,
04/15 05Z,   0.00,   0.30,  -0.13,  99.90,  -0.43,
04/15 06Z,   0.00,   2.33,   1.96,  99.90,  -0.37,
04/15 07Z,   0.00,   3.76,   3.40,  99.90,  -0.36,
04/15 08Z,   0.00,   4.23,   3.93,  99.90,  -0.30,  (max)
04/15 09Z,   0.00,   3.61,   3.31,  99.90,  -0.30,
04/15 10Z,   0.00,   2.05,   1.85,  99.90,  -0.20,
04/15 11Z,   0.00,  -0.06,  -0.28,  99.90,  -0.22,
04/15 12Z,  -0.10,  -2.21,  -2.44,  99.90,  -0.13,
04/15 13Z,  -0.10,  -3.85,  -4.13,  99.90,  -0.18,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/15 14Z,  -0.10,  -4.57,  99.90,  -4.86,  -0.19,  (min)
04/15 15Z,  -0.10,  -4.21,  99.90,  -4.49,  -0.19,
04/15 16Z,  -0.10,  -2.85,  99.90,  -3.14,  -0.19,
04/15 17Z,  -0.10,  -0.85,  99.90,  -1.14,  -0.19,
04/15 18Z,   0.00,   1.26,  99.90,   1.07,  -0.19,
04/15 19Z,   0.00,   2.95,  99.90,   2.75,  -0.20,
04/15 20Z,  -0.10,   3.76,  99.90,   3.47,  -0.20,  (max)
04/15 21Z,  -0.10,   3.50,  99.90,   3.20,  -0.20,
04/15 22Z,  -0.10,   2.21,  99.90,   1.91,  -0.20,
04/15 23Z,  -0.10,   0.24,  99.90,  -0.06,  -0.20,
04/16 00Z,  -0.20,  -1.89,  99.90,  -2.29,  -0.20,
04/16 01Z,  -0.20,  -3.61,  99.90,  -4.02,  -0.21,
04/16 02Z,  -0.20,  -4.46,  99.90,  -4.86,  -0.21,  (min)
04/16 03Z,  -0.20,  -4.16,  99.90,  -4.57,  -0.21,
04/16 04Z,  -0.20,  -2.78,  99.90,  -3.18,  -0.21,
04/16 05Z,  -0.30,  -0.62,  99.90,  -1.12,  -0.21,
04/16 06Z,  -0.30,   1.78,  99.90,   1.28,  -0.21,
04/16 07Z,  -0.30,   3.81,  99.90,   3.31,  -0.21,
04/16 08Z,  -0.30,   4.95,  99.90,   4.44,  -0.21,
04/16 09Z,  -0.20,   4.88,  99.90,   4.47,  -0.21,  (max)
04/16 10Z,  -0.20,   3.58,  99.90,   3.17,  -0.21,
04/16 11Z,  -0.20,   1.34,  99.90,   0.93,  -0.21,
04/16 12Z,  -0.10,  -1.31,  99.90,  -1.61,  -0.21,
04/16 13Z,  -0.20,  -3.73,  99.90,  -4.14,  -0.21,
04/16 14Z,  -0.20,  -5.36,  99.90,  -5.76,  -0.21,
04/16 15Z,  -0.30,  -5.79,  99.90,  -6.30,  -0.21,  (min)
04/16 16Z,  -0.30,  -4.95,  99.90,  -5.46,  -0.21,
04/16 17Z,  -0.30,  -3.06,  99.90,  -3.56,  -0.21,
04/16 18Z,  -0.30,  -0.61,  99.90,  -1.11,  -0.21,
04/16 19Z,  -0.30,   1.79,  99.90,   1.28,  -0.21,
04/16 20Z,  -0.20,   3.52,  99.90,   3.12,  -0.21,
04/16 21Z,  -0.20,   4.18,  99.90,   3.77,  -0.21,  (max)
04/16 22Z,  -0.20,   3.62,  99.90,   3.21,  -0.21,
04/16 23Z,  -0.10,   2.02,  99.90,   1.72,  -0.21,
04/17 00Z,  -0.20,  -0.16,  99.90,  -0.56,  -0.21,
04/17 01Z,  -0.20,  -2.31,  99.90,  -2.72,  -0.21,
04/17 02Z,  -0.20,  -3.83,  99.90,  -4.24,  -0.21,
04/17 03Z,  -0.20,  -4.28,  99.90,  -4.69,  -0.21,  (min)
04/17 04Z,  -0.20,  -3.49,  99.90,  -3.90,  -0.21,
04/17 05Z,  -0.30,  -1.63,  99.90,  -2.13,  -0.21,
04/17 06Z,  -0.30,   0.85,  99.90,   0.35,  -0.21,
04/17 07Z,  -0.30,   3.33,  99.90,   2.82,  -0.21,
04/17 08Z,  -0.30,   5.14,  99.90,   4.64,  -0.21,
04/17 09Z,  -0.20,   5.80,  99.90,   5.39,  -0.21,  (max)
04/17 10Z,  -0.20,   5.08,  99.90,   4.68,  -0.21,
04/17 11Z,  -0.20,   3.10,  99.90,   2.70,  -0.21,
04/17 12Z,  -0.20,   0.29,  99.90,  -0.11,  -0.21,
04/17 13Z,  -0.20,  -2.70,  99.90,  -3.11,  -0.21,
04/17 14Z,  -0.30,  -5.19,  99.90,  -5.70,  -0.21,
04/17 15Z,  -0.30,  -6.60,  99.90,  -7.11,  -0.21,
04/17 16Z,  -0.40,  -6.62,  99.90,  -7.23,  -0.21,  (min)
04/17 17Z,  -0.40,  -5.28,  99.90,  -5.89,  -0.21,
04/17 18Z,  -0.40,  -2.93,  99.90,  -3.54,  -0.21,
04/17 19Z,  -0.40,  -0.17,  99.90,  -0.78,  -0.21,
04/17 20Z,  -0.40,   2.32,  99.90,   1.71,  -0.21,
04/17 21Z,  -0.30,   3.94,  99.90,   3.43,  -0.21,
04/17 22Z,  -0.20,   4.34,  99.90,   3.93,  -0.21,  (max)
04/17 23Z,  -0.20,   3.48,  99.90,   3.07,  -0.21,
04/18 00Z,  -0.10,   1.65,  99.90,   1.35,  -0.21,
04/18 01Z,  -0.10,  -0.59,  99.90,  -0.89,  -0.21,
04/18 02Z,  -0.10,  -2.59,  99.90,  -2.90,  -0.21,
04/18 03Z,  -0.10,  -3.77,  99.90,  -4.07,  -0.21,
04/18 04Z,  -0.20,  -3.75,  99.90,  -4.16,  -0.21,  (min)
04/18 05Z,  -0.20,  -2.49,  99.90,  -2.90,  -0.21,
04/18 06Z,  -0.20,  -0.28,  99.90,  -0.69,  -0.21,
04/18 07Z,  -0.20,   2.33,  99.90,   1.92,  -0.21,
04/18 08Z,  -0.20,   4.66,  99.90,   4.26,  -0.21,
04/18 09Z,  -0.20,   6.09,  99.90,   5.68,  -0.21,
04/18 10Z,  -0.20,   6.18,  99.90,   5.77,  -0.21,  (max)
04/18 11Z,  -0.10,   4.83,  99.90,   4.52,  -0.21,
04/18 12Z,  -0.10,   2.30,  99.90,   1.99,  -0.21,
04/18 13Z,   0.00,  -0.88,  99.90,  -1.08,  -0.21,
04/18 14Z,  -0.10,  -3.98,  99.90,  -4.29,  -0.21,
04/18 15Z,  -0.10,  -6.33,  99.90,  -6.63,  -0.21,
04/18 16Z,  -0.10,  -7.39,  99.90,  -7.70,  -0.21,  (min)
04/18 17Z,  -0.10,  -6.97,  99.90,  -7.28,  -0.21,
04/18 18Z,  -0.10,  -5.21,  99.90,  -5.51,  -0.21,
04/18 19Z,  -0.10,  -2.57,  99.90,  -2.87,  -0.21,
04/18 20Z,  -0.10,   0.29,  99.90,  -0.01,  -0.21,
04/18 21Z,   0.00,   2.69,  99.90,   2.48,  -0.21,
04/18 22Z,   0.00,   4.08,  99.90,   3.87,  -0.21,
04/18 23Z,   0.00,   4.19,  99.90,   3.99,  -0.21,  (max)
04/19 00Z,   0.00,   3.10,  99.90,   2.89,  -0.21,
04/19 01Z,   0.00,   1.19,  99.90,   0.99,  -0.21,
04/19 02Z,   0.00,  -0.94,  99.90,  -1.14,  -0.21,
04/19 03Z,   0.00,  -2.64,  99.90,  -2.85,  -0.21,
04/19 04Z,   0.00,  -3.40,  99.90,  -3.61,  -0.21,  (min)
04/19 05Z,  -0.10,  -2.95,  99.90,  -3.25,  -0.21,
04/19 06Z,  -0.10,  -1.35,  99.90,  -1.65,  -0.21,