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 : 06/23/2025 13:21:51 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
06/21 18Z,   0.20,   0.40,   0.64,  99.90,   0.04,  (min)
06/21 19Z,   0.20,   1.18,   1.69,  99.90,   0.31,
06/21 20Z,   0.30,   3.10,   3.45,  99.90,   0.05,
06/21 21Z,   0.30,   5.46,   5.64,  99.90,  -0.12,
06/21 22Z,   0.30,   7.90,   8.07,  99.90,  -0.13,
06/21 23Z,   0.30,   9.96,   9.96,  99.90,  -0.30,
06/22 00Z,   0.30,  10.97,  10.96,  99.90,  -0.31,  (max)
06/22 01Z,   0.40,  10.63,  10.57,  99.90,  -0.46,
06/22 02Z,   0.40,   9.14,   9.10,  99.90,  -0.44,
06/22 03Z,   0.40,   6.91,   7.19,  99.90,  -0.12,
06/22 04Z,   0.30,   4.37,   4.69,  99.90,   0.02,
06/22 05Z,   0.40,   1.89,   2.35,  99.90,   0.06,
06/22 06Z,   0.30,   0.10,   0.53,  99.90,   0.13,
06/22 07Z,   0.30,  -0.27,   0.33,  99.90,   0.30,  (min)
06/22 08Z,   0.30,   0.83,   1.61,  99.90,   0.48,
06/22 09Z,   0.30,   2.76,   3.30,  99.90,   0.24,
06/22 10Z,   0.30,   5.06,   5.42,  99.90,   0.06,
06/22 11Z,   0.30,   7.38,   7.65,  99.90,  -0.03,
06/22 12Z,   0.30,   9.07,   9.52,  99.90,   0.15,
06/22 13Z,   0.30,   9.58,   9.79,  99.90,  -0.09,  (max)
06/22 14Z,   0.30,   8.86,   9.13,  99.90,  -0.03,
06/22 15Z,   0.20,   7.24,   7.50,  99.90,   0.06,
06/22 16Z,   0.30,   5.13,   5.56,  99.90,   0.13,
06/22 17Z,   0.30,   2.90,   3.33,  99.90,   0.13,
06/22 18Z,   0.40,   1.06,   1.30,  99.90,  -0.16,
06/22 19Z,   0.40,   0.37,   0.90,  99.90,   0.13,  (min)
06/22 20Z,   0.40,   1.25,   2.01,  99.90,   0.36,
06/22 21Z,   0.40,   3.25,   3.84,  99.90,   0.19,
06/22 22Z,   0.40,   5.72,   6.12,  99.90,   0.00,
06/22 23Z,   0.40,   8.28,   8.48,  99.90,  -0.20,
06/23 00Z,   0.40,  10.37,  10.51,  99.90,  -0.26,
06/23 01Z,   0.40,  11.33,  11.42,  99.90,  -0.31,  (max)
06/23 02Z,   0.30,  10.89,  10.97,  99.90,  -0.22,
06/23 03Z,   0.30,   9.29,   9.34,  99.90,  -0.25,
06/23 04Z,   0.30,   6.94,   7.22,  99.90,  -0.02,
06/23 05Z,   0.30,   4.23,   4.58,  99.90,   0.05,
06/23 06Z,   0.30,   1.57,   2.01,  99.90,   0.14,
06/23 07Z,   0.30,  -0.30,   0.30,  99.90,   0.30,
06/23 08Z,   0.30,  -0.64,  -0.17,  99.90,   0.17,  (min)
06/23 09Z,   0.40,   0.50,   1.21,  99.90,   0.31,
06/23 10Z,   0.40,   2.50,   3.10,  99.90,   0.20,
06/23 11Z,   0.40,   4.94,   5.44,  99.90,   0.10,
06/23 12Z,   0.40,   7.39,   7.98,  99.90,   0.19,
06/23 13Z,   0.50,   9.14,   9.50,  99.90,  -0.14,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
06/23 14Z,   0.40,   9.65,  99.90,   9.93,  -0.12,  (max)
06/23 15Z,   0.40,   8.93,  99.90,   9.23,  -0.10,
06/23 16Z,   0.40,   7.30,  99.90,   7.62,  -0.08,
06/23 17Z,   0.40,   5.14,  99.90,   5.47,  -0.06,
06/23 18Z,   0.40,   2.82,  99.90,   3.17,  -0.05,
06/23 19Z,   0.40,   0.93,  99.90,   1.30,  -0.03,
06/23 20Z,   0.40,   0.31,  99.90,   0.70,  -0.01,  (min)
06/23 21Z,   0.40,   1.30,  99.90,   1.71,   0.01,
06/23 22Z,   0.40,   3.38,  99.90,   3.81,   0.03,
06/23 23Z,   0.40,   5.95,  99.90,   6.39,   0.05,
06/24 00Z,   0.40,   8.60,  99.90,   9.07,   0.06,
06/24 01Z,   0.40,  10.71,  99.90,  11.19,   0.08,
06/24 02Z,   0.40,  11.59,  99.90,  12.07,   0.08,  (max)
06/24 03Z,   0.40,  11.06,  99.90,  11.54,   0.08,
06/24 04Z,   0.30,   9.36,  99.90,   9.75,   0.08,
06/24 05Z,   0.30,   6.89,  99.90,   7.28,   0.08,
06/24 06Z,   0.30,   4.03,  99.90,   4.41,   0.08,
06/24 07Z,   0.30,   1.24,  99.90,   1.62,   0.08,
06/24 08Z,   0.30,  -0.64,  99.90,  -0.26,   0.08,
06/24 09Z,   0.30,  -0.91,  99.90,  -0.52,   0.08,  (min)
06/24 10Z,   0.30,   0.31,  99.90,   0.69,   0.08,
06/24 11Z,   0.30,   2.40,  99.90,   2.79,   0.08,
06/24 12Z,   0.40,   4.97,  99.90,   5.45,   0.08,
06/24 13Z,   0.40,   7.51,  99.90,   7.99,   0.08,
06/24 14Z,   0.40,   9.26,  99.90,   9.74,   0.08,
06/24 15Z,   0.40,   9.74,  99.90,  10.22,   0.08,  (max)
06/24 16Z,   0.40,   8.99,  99.90,   9.47,   0.08,
06/24 17Z,   0.40,   7.31,  99.90,   7.79,   0.08,
06/24 18Z,   0.40,   5.07,  99.90,   5.55,   0.08,
06/24 19Z,   0.30,   2.66,  99.90,   3.04,   0.08,
06/24 20Z,   0.30,   0.77,  99.90,   1.15,   0.08,
06/24 21Z,   0.30,   0.26,  99.90,   0.64,   0.08,  (min)
06/24 22Z,   0.30,   1.37,  99.90,   1.75,   0.08,
06/24 23Z,   0.30,   3.53,  99.90,   3.91,   0.08,
06/25 00Z,   0.30,   6.17,  99.90,   6.55,   0.08,
06/25 01Z,   0.30,   8.88,  99.90,   9.26,   0.08,
06/25 02Z,   0.30,  10.95,  99.90,  11.33,   0.08,
06/25 03Z,   0.30,  11.73,  99.90,  12.11,   0.08,  (max)
06/25 04Z,   0.30,  11.10,  99.90,  11.48,   0.08,
06/25 05Z,   0.20,   9.31,  99.90,   9.59,   0.08,
06/25 06Z,   0.20,   6.74,  99.90,   7.02,   0.08,
06/25 07Z,   0.20,   3.76,  99.90,   4.05,   0.08,
06/25 08Z,   0.20,   0.92,  99.90,   1.20,   0.08,
06/25 09Z,   0.20,  -0.89,  99.90,  -0.60,   0.08,
06/25 10Z,   0.20,  -1.01,  99.90,  -0.73,   0.08,  (min)
06/25 11Z,   0.30,   0.32,  99.90,   0.70,   0.08,
06/25 12Z,   0.30,   2.49,  99.90,   2.87,   0.08,
06/25 13Z,   0.30,   5.15,  99.90,   5.53,   0.08,
06/25 14Z,   0.40,   7.71,  99.90,   8.19,   0.08,
06/25 15Z,   0.40,   9.40,  99.90,   9.88,   0.08,
06/25 16Z,   0.40,   9.80,  99.90,  10.28,   0.08,  (max)
06/25 17Z,   0.50,   8.98,  99.90,   9.56,   0.08,
06/25 18Z,   0.60,   7.23,  99.90,   7.92,   0.08,
06/25 19Z,   0.50,   4.92,  99.90,   5.50,   0.08,
06/25 20Z,   0.50,   2.45,  99.90,   3.04,   0.08,
06/25 21Z,   0.50,   0.62,  99.90,   1.20,   0.08,
06/25 22Z,   0.50,   0.27,  99.90,   0.85,   0.08,  (min)
06/25 23Z,   0.50,   1.50,  99.90,   2.09,   0.08,
06/26 00Z,   0.60,   3.72,  99.90,   4.40,   0.08,
06/26 01Z,   0.60,   6.40,  99.90,   7.08,   0.08,
06/26 02Z,   0.70,   9.10,  99.90,   9.88,   0.08,
06/26 03Z,   0.60,  11.07,  99.90,  11.75,   0.08,
06/26 04Z,   0.60,  11.72,  99.90,  12.40,   0.08,  (max)
06/26 05Z,   0.70,  10.98,  99.90,  11.76,   0.08,
06/26 06Z,   0.70,   9.11,  99.90,   9.89,   0.08,
06/26 07Z,   0.70,   6.47,  99.90,   7.25,   0.08,
06/26 08Z,   0.70,   3.44,  99.90,   4.23,   0.08,
06/26 09Z,   0.80,   0.64,  99.90,   1.52,   0.08,
06/26 10Z,   0.80,  -0.99,  99.90,  -0.11,   0.08,  (min)
06/26 11Z,   0.80,  -0.92,  99.90,  -0.04,   0.08,
06/26 12Z,   0.70,   0.52,  99.90,   1.30,   0.08,
06/26 13Z,   0.80,   2.76,  99.90,   3.64,   0.08,
06/26 14Z,   0.70,   5.45,  99.90,   6.23,   0.08,
06/26 15Z,   0.70,   7.96,  99.90,   8.74,   0.08,
06/26 16Z,   0.70,   9.53,  99.90,  10.31,   0.08,
06/26 17Z,   0.60,   9.81,  99.90,  10.49,   0.08,  (max)
06/26 18Z,   0.60,   8.88,  99.90,   9.57,   0.08,
06/26 19Z,   0.50,   7.06,  99.90,   7.64,   0.08,
06/26 20Z,   0.50,   4.69,  99.90,   5.27,   0.08,
06/26 21Z,   0.50,   2.23,  99.90,   2.81,   0.08,
06/26 22Z,   0.50,   0.53,  99.90,   1.11,   0.08,
06/26 23Z,   0.50,   0.37,  99.90,   0.95,   0.08,  (min)
06/27 00Z,   0.40,   1.72,  99.90,   2.21,   0.08,
06/27 01Z,   0.40,   3.96,  99.90,   4.44,   0.08,
06/27 02Z,   0.40,   6.62,  99.90,   7.10,   0.08,
06/27 03Z,   0.30,   9.24,  99.90,   9.62,   0.08,
06/27 04Z,   0.30,  11.06,  99.90,  11.44,   0.08,
06/27 05Z,   0.30,  11.55,  99.90,  11.93,   0.08,  (max)
06/27 06Z,   0.30,  10.68,  99.90,  11.06,   0.08,