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
#Boston, MA : 11/17/2025 15:20:57 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
11/16 00Z,   0.50,   8.72,   9.30,  99.90,   0.08,
11/16 01Z,   0.50,   9.13,   9.91,  99.90,   0.28,  (max)
11/16 02Z,   0.50,   8.64,   9.17,  99.90,   0.03,
11/16 03Z,   0.40,   7.40,   7.97,  99.90,   0.17,
11/16 04Z,   0.40,   5.53,   6.16,  99.90,   0.23,
11/16 05Z,   0.40,   3.36,   4.50,  99.90,   0.74,
11/16 06Z,   0.70,   1.67,   2.73,  99.90,   0.36,
11/16 07Z,   0.70,   1.08,   2.05,  99.90,   0.27,  (min)
11/16 08Z,   0.80,   1.52,   2.86,  99.90,   0.54,
11/16 09Z,   0.80,   2.74,   4.09,  99.90,   0.55,
11/16 10Z,   0.90,   4.68,   6.14,  99.90,   0.56,
11/16 11Z,   0.90,   6.92,   8.20,  99.90,   0.38,
11/16 12Z,   0.90,   8.69,   9.99,  99.90,   0.40,
11/16 13Z,   0.90,   9.53,  10.78,  99.90,   0.35,  (max)
11/16 14Z,   0.90,   9.39,  10.77,  99.90,   0.48,
11/16 15Z,   0.90,   8.38,   9.64,  99.90,   0.36,
11/16 16Z,   0.90,   6.65,   7.65,  99.90,   0.10,
11/16 17Z,   0.70,   4.39,   5.52,  99.90,   0.43,
11/16 18Z,   0.90,   2.24,   3.21,  99.90,   0.07,
11/16 19Z,   0.80,   1.01,   2.00,  99.90,   0.19,
11/16 20Z,   0.80,   0.94,   1.77,  99.90,   0.03,  (min)
11/16 21Z,   0.80,   1.75,   2.70,  99.90,   0.15,
11/16 22Z,   0.80,   3.34,   4.38,  99.90,   0.24,
11/16 23Z,   0.80,   5.49,   6.31,  99.90,   0.02,
11/17 00Z,   0.70,   7.53,   8.19,  99.90,  -0.04,
11/17 01Z,   0.60,   8.78,   9.71,  99.90,   0.33,
11/17 02Z,   0.50,   9.06,  10.12,  99.90,   0.56,  (max)
11/17 03Z,   0.50,   8.44,   9.23,  99.90,   0.29,
11/17 04Z,   0.40,   7.08,   7.74,  99.90,   0.26,
11/17 05Z,   0.30,   5.13,   6.00,  99.90,   0.57,
11/17 06Z,   0.30,   3.00,   3.84,  99.90,   0.54,
11/17 07Z,   0.30,   1.50,   2.15,  99.90,   0.35,
11/17 08Z,   0.20,   1.18,   1.48,  99.90,   0.10,  (min)
11/17 09Z,   0.10,   1.86,   2.45,  99.90,   0.49,
11/17 10Z,   0.00,   3.31,   3.70,  99.90,   0.39,
11/17 11Z,   0.00,   5.40,   5.50,  99.90,   0.10,
11/17 12Z,   0.00,   7.62,   7.55,  99.90,  -0.07,
11/17 13Z,   0.00,   9.21,   9.13,  99.90,  -0.08,
11/17 14Z,  -0.10,   9.78,  10.01,  99.90,   0.33,  (max)
11/17 15Z,  -0.20,   9.34,   9.18,  99.90,   0.04,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
11/17 16Z,  -0.30,   8.07,  99.90,   7.81,   0.04,
11/17 17Z,  -0.40,   6.11,  99.90,   5.76,   0.05,
11/17 18Z,  -0.30,   3.74,  99.90,   3.50,   0.06,
11/17 19Z,  -0.30,   1.66,  99.90,   1.42,   0.06,
11/17 20Z,  -0.30,   0.65,  99.90,   0.42,   0.07,  (min)
11/17 21Z,  -0.30,   0.82,  99.90,   0.60,   0.08,
11/17 22Z,  -0.30,   1.85,  99.90,   1.64,   0.09,
11/17 23Z,  -0.30,   3.65,  99.90,   3.44,   0.09,
11/18 00Z,  -0.30,   5.89,  99.90,   5.69,   0.10,
11/18 01Z,  -0.40,   7.84,  99.90,   7.54,   0.11,
11/18 02Z,  -0.40,   8.90,  99.90,   8.61,   0.11,
11/18 03Z,  -0.40,   8.95,  99.90,   8.67,   0.12,  (max)
11/18 04Z,  -0.40,   8.13,  99.90,   7.85,   0.12,
11/18 05Z,  -0.40,   6.60,  99.90,   6.32,   0.12,
11/18 06Z,  -0.40,   4.57,  99.90,   4.29,   0.12,
11/18 07Z,  -0.30,   2.54,  99.90,   2.36,   0.12,
11/18 08Z,  -0.30,   1.35,  99.90,   1.17,   0.12,  (min)
11/18 09Z,  -0.30,   1.39,  99.90,   1.21,   0.12,
11/18 10Z,  -0.20,   2.37,  99.90,   2.29,   0.12,
11/18 11Z,  -0.20,   4.06,  99.90,   3.98,   0.12,
11/18 12Z,  -0.20,   6.25,  99.90,   6.17,   0.12,
11/18 13Z,  -0.20,   8.36,  99.90,   8.28,   0.12,
11/18 14Z,  -0.20,   9.66,  99.90,   9.58,   0.12,
11/18 15Z,  -0.30,   9.87,  99.90,   9.69,   0.12,  (max)
11/18 16Z,  -0.30,   9.09,  99.90,   8.91,   0.12,
11/18 17Z,  -0.30,   7.52,  99.90,   7.34,   0.12,
11/18 18Z,  -0.20,   5.36,  99.90,   5.28,   0.12,
11/18 19Z,  -0.20,   2.95,  99.90,   2.87,   0.12,
11/18 20Z,  -0.10,   1.07,  99.90,   1.09,   0.12,
11/18 21Z,   0.00,   0.40,  99.90,   0.52,   0.12,  (min)
11/18 22Z,   0.00,   0.89,  99.90,   1.01,   0.12,
11/18 23Z,   0.00,   2.20,  99.90,   2.32,   0.12,
11/19 00Z,   0.00,   4.18,  99.90,   4.30,   0.12,
11/19 01Z,   0.00,   6.43,  99.90,   6.55,   0.12,
11/19 02Z,   0.00,   8.19,  99.90,   8.32,   0.12,
11/19 03Z,   0.00,   8.97,  99.90,   9.09,   0.12,  (max)
11/19 04Z,   0.00,   8.73,  99.90,   8.86,   0.12,
11/19 05Z,   0.00,   7.66,  99.90,   7.79,   0.12,
11/19 06Z,   0.00,   5.97,  99.90,   6.09,   0.12,
11/19 07Z,   0.00,   3.91,  99.90,   4.03,   0.12,
11/19 08Z,   0.00,   2.08,  99.90,   2.20,   0.12,
11/19 09Z,   0.10,   1.29,  99.90,   1.51,   0.12,  (min)
11/19 10Z,   0.10,   1.74,  99.90,   1.97,   0.12,
11/19 11Z,   0.20,   3.05,  99.90,   3.37,   0.12,
11/19 12Z,   0.10,   4.93,  99.90,   5.15,   0.12,
11/19 13Z,   0.20,   7.14,  99.90,   7.46,   0.12,
11/19 14Z,   0.20,   9.03,  99.90,   9.35,   0.12,
11/19 15Z,   0.20,   9.95,  99.90,  10.27,   0.12,  (max)
11/19 16Z,   0.20,   9.76,  99.90,  10.08,   0.12,
11/19 17Z,   0.20,   8.61,  99.90,   8.93,   0.12,
11/19 18Z,   0.20,   6.77,  99.90,   7.09,   0.12,
11/19 19Z,   0.20,   4.47,  99.90,   4.79,   0.12,
11/19 20Z,   0.30,   2.14,  99.90,   2.56,   0.12,
11/19 21Z,   0.30,   0.59,  99.90,   1.01,   0.12,
11/19 22Z,   0.30,   0.35,  99.90,   0.77,   0.12,  (min)
11/19 23Z,   0.40,   1.20,  99.90,   1.72,   0.12,
11/20 00Z,   0.30,   2.76,  99.90,   3.18,   0.12,
11/20 01Z,   0.30,   4.86,  99.90,   5.29,   0.12,
11/20 02Z,   0.30,   7.02,  99.90,   7.44,   0.12,
11/20 03Z,   0.30,   8.51,  99.90,   8.93,   0.12,
11/20 04Z,   0.20,   8.94,  99.90,   9.26,   0.12,  (max)
11/20 05Z,   0.20,   8.38,  99.90,   8.70,   0.12,
11/20 06Z,   0.20,   7.06,  99.90,   7.38,   0.12,
11/20 07Z,   0.20,   5.25,  99.90,   5.57,   0.12,
11/20 08Z,   0.30,   3.24,  99.90,   3.66,   0.12,
11/20 09Z,   0.30,   1.72,  99.90,   2.14,   0.12,
11/20 10Z,   0.30,   1.40,  99.90,   1.82,   0.12,  (min)
11/20 11Z,   0.30,   2.27,  99.90,   2.69,   0.12,
11/20 12Z,   0.40,   3.85,  99.90,   4.37,   0.12,
11/20 13Z,   0.40,   5.85,  99.90,   6.37,   0.12,
11/20 14Z,   0.40,   7.97,  99.90,   8.49,   0.12,
11/20 15Z,   0.40,   9.54,  99.90,  10.06,   0.12,
11/20 16Z,   0.30,  10.04,  99.90,  10.46,   0.12,  (max)
11/20 17Z,   0.30,   9.42,  99.90,   9.84,   0.12,
11/20 18Z,   0.30,   7.94,  99.90,   8.36,   0.12,
11/20 19Z,   0.30,   5.89,  99.90,   6.31,   0.12,
11/20 20Z,   0.40,   3.56,  99.90,   4.08,   0.12,
11/20 21Z,   0.40,   1.44,  99.90,   1.96,   0.12,
11/20 22Z,   0.50,   0.32,  99.90,   0.94,   0.12,  (min)
11/20 23Z,   0.50,   0.55,  99.90,   1.17,   0.12,
11/21 00Z,   0.50,   1.73,  99.90,   2.35,   0.12,
11/21 01Z,   0.50,   3.48,  99.90,   4.10,   0.12,
11/21 02Z,   0.40,   5.60,  99.90,   6.12,   0.12,
11/21 03Z,   0.40,   7.56,  99.90,   8.08,   0.12,
11/21 04Z,   0.50,   8.69,  99.90,   9.32,   0.12,  (max)
11/21 05Z,   0.40,   8.75,  99.90,   9.27,   0.12,
11/21 06Z,   0.50,   7.87,  99.90,   8.49,   0.12,
11/21 07Z,  99.90,   6.36,  99.90,  99.90,   0.12,
11/21 08Z,  99.90,   4.49,  99.90,  99.90,   0.12,
11/21 09Z,  99.90,   2.65,  99.90,  99.90,   0.12,
11/21 10Z,  99.90,   1.52,  99.90,  99.90,   0.12,
11/21 11Z,  99.90,   1.69,  99.90,  99.90,   0.12,
11/21 12Z,  99.90,   2.94,  99.90,  99.90,   0.12,