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
Eastport, ME
Bar Harbor, ME
Portland, ME
Portsmouth, ME
Boston, MA
Buzzards Bay MA
Woods Hole, MA
Nantucket, MA
Providence, RI
Newport, RI
Block Island, RI
Montauk Point NY
New London, CT
Bridgeport, CT
Port Jefferson NY
Kings Pnt, NY
The Battery, NY
Bergen Pnt, NY
Sandy Hook, NJ
Atlantic City, NJ
Cape May, NJ
Philadelphia, PA
Reedy Pnt, DE
Lewes, DE
Surge List
East Coast
#Boston, MA : 04/22/2026 01:22:43 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/20 06Z,   0.00,  -0.89,  -0.94,  99.90,  -0.05,  (max)
04/20 07Z,   0.00,  -2.17,  -2.21,  99.90,  -0.04,
04/20 08Z,   0.10,  -4.55,  -4.40,  99.90,   0.05,
04/20 09Z,   0.10,  -7.50,  -7.34,  99.90,   0.06,
04/20 10Z,   0.10, -10.49, -10.47,  99.90,  -0.08,
04/20 11Z,   0.10, -12.94, -12.72,  99.90,   0.12,
04/20 12Z,   0.10, -14.04, -13.97,  99.90,  -0.03,  (min)
04/20 13Z,   0.20, -13.31, -12.81,  99.90,   0.30,
04/20 14Z,   0.20, -11.22, -10.86,  99.90,   0.16,
04/20 15Z,   0.20,  -8.58,  -8.29,  99.90,   0.09,
04/20 16Z,   0.20,  -5.89,  -5.50,  99.90,   0.19,
04/20 17Z,   0.20,  -3.62,  -3.19,  99.90,   0.23,
04/20 18Z,   0.20,  -2.44,  -2.16,  99.90,   0.08,  (max)
04/20 19Z,   0.20,  -2.68,  -2.55,  99.90,  -0.07,
04/20 20Z,   0.30,  -4.16,  -4.02,  99.90,  -0.16,
04/20 21Z,   0.30,  -6.41,  -6.24,  99.90,  -0.13,
04/20 22Z,   0.30,  -8.93,  -8.77,  99.90,  -0.14,
04/20 23Z,   0.40, -11.20, -11.03,  99.90,  -0.23,
04/21 00Z,   0.40, -12.52, -12.31,  99.90,  -0.19,  (min)
04/21 01Z,   0.40, -12.19, -11.72,  99.90,   0.07,
04/21 02Z,   0.40, -10.30,  -9.68,  99.90,   0.22,
04/21 03Z,   0.40,  -7.68,  -7.23,  99.90,   0.05,
04/21 04Z,   0.40,  -4.98,  -4.55,  99.90,   0.03,
04/21 05Z,   0.40,  -2.62,  -2.07,  99.90,   0.15,
04/21 06Z,   0.40,  -1.19,  -0.91,  99.90,  -0.12,  (max)
04/21 07Z,   0.40,  -1.19,  -1.10,  99.90,  -0.31,
04/21 08Z,   0.50,  -2.58,  -2.56,  99.90,  -0.48,
04/21 09Z,   0.50,  -4.95,  -4.84,  99.90,  -0.39,
04/21 10Z,   0.50,  -7.79,  -7.60,  99.90,  -0.31,
04/21 11Z,   0.50, -10.62, -10.48,  99.90,  -0.36,
04/21 12Z,   0.40, -12.85, -12.78,  99.90,  -0.33,
04/21 13Z,   0.40, -13.72, -13.52,  99.90,  -0.20,  (min)
04/21 14Z,   0.40, -12.85, -12.41,  99.90,   0.04,
04/21 15Z,   0.40, -10.82, -10.56,  99.90,  -0.14,
04/21 16Z,   0.40,  -8.36,  -8.21,  99.90,  -0.25,
04/21 17Z,   0.40,  -5.85,  -5.53,  99.90,  -0.08,
04/21 18Z,   0.30,  -3.77,  -3.45,  99.90,   0.02,
04/21 19Z,   0.30,  -2.78,  -2.58,  99.90,  -0.10,  (max)
04/21 20Z,   0.30,  -3.12,  -3.02,  99.90,  -0.20,
04/21 21Z,   0.40,  -4.56,  -4.48,  99.90,  -0.32,
04/21 22Z,   0.30,  -6.68,  -6.51,  99.90,  -0.13,
04/21 23Z,   0.30,  -9.01,  -8.97,  99.90,  -0.26,
04/22 00Z,   0.30, -11.09, -11.12,  99.90,  -0.33,
04/22 01Z,   0.20, -12.19, -12.25,  99.90,  -0.26,  (min)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/22 02Z,   0.20, -11.71,  99.90, -11.75,  -0.24,
04/22 03Z,   0.10,  -9.85,  99.90,  -9.97,  -0.22,
04/22 04Z,   0.10,  -7.43,  99.90,  -7.53,  -0.20,
04/22 05Z,   0.00,  -4.95,  99.90,  -5.13,  -0.18,
04/22 06Z,   0.00,  -2.77,  99.90,  -2.93,  -0.16,
04/22 07Z,   0.10,  -1.53,  99.90,  -1.57,  -0.14,  (max)
04/22 08Z,   0.10,  -1.62,  99.90,  -1.64,  -0.12,
04/22 09Z,   0.20,  -2.98,  99.90,  -2.88,  -0.10,
04/22 10Z,   0.20,  -5.21,  99.90,  -5.09,  -0.08,
04/22 11Z,   0.30,  -7.85,  99.90,  -7.61,  -0.06,
04/22 12Z,   0.30, -10.47,  99.90, -10.21,  -0.04,
04/22 13Z,   0.30, -12.52,  99.90, -12.24,  -0.02,
04/22 14Z,   0.30, -13.23,  99.90, -12.95,  -0.02,  (min)
04/22 15Z,   0.30, -12.37,  99.90, -12.10,  -0.02,
04/22 16Z,   0.30, -10.53,  99.90, -10.26,  -0.02,
04/22 17Z,   0.30,  -8.30,  99.90,  -8.03,  -0.02,
04/22 18Z,   0.30,  -5.97,  99.90,  -5.70,  -0.02,
04/22 19Z,   0.30,  -4.05,  99.90,  -3.78,  -0.02,
04/22 20Z,   0.30,  -3.16,  99.90,  -2.88,  -0.02,  (max)
04/22 21Z,   0.40,  -3.48,  99.90,  -3.10,  -0.02,
04/22 22Z,   0.40,  -4.80,  99.90,  -4.43,  -0.02,
04/22 23Z,   0.40,  -6.73,  99.90,  -6.35,  -0.02,
04/23 00Z,   0.40,  -8.88,  99.90,  -8.50,  -0.02,
04/23 01Z,   0.40, -10.80,  99.90, -10.42,  -0.02,
04/23 02Z,   0.40, -11.79,  99.90, -11.42,  -0.02,  (min)
04/23 03Z,   0.40, -11.30,  99.90, -10.93,  -0.02,
04/23 04Z,   0.40,  -9.63,  99.90,  -9.25,  -0.02,
04/23 05Z,   0.30,  -7.47,  99.90,  -7.20,  -0.02,
04/23 06Z,   0.30,  -5.20,  99.90,  -4.92,  -0.02,
04/23 07Z,   0.40,  -3.17,  99.90,  -2.80,  -0.02,
04/23 08Z,   0.40,  -2.01,  99.90,  -1.63,  -0.02,  (max)
04/23 09Z,   0.40,  -2.08,  99.90,  -1.70,  -0.02,
04/23 10Z,   0.40,  -3.29,  99.90,  -2.92,  -0.02,
04/23 11Z,   0.50,  -5.29,  99.90,  -4.82,  -0.02,
04/23 12Z,   0.50,  -7.69,  99.90,  -7.21,  -0.02,
04/23 13Z,   0.50, -10.13,  99.90,  -9.66,  -0.02,
04/23 14Z,   0.50, -12.06,  99.90, -11.58,  -0.02,
04/23 15Z,   0.50, -12.73,  99.90, -12.25,  -0.02,  (min)
04/23 16Z,   0.40, -11.98,  99.90, -11.61,  -0.02,
04/23 17Z,   0.40, -10.39,  99.90, -10.01,  -0.02,
04/23 18Z,   0.40,  -8.38,  99.90,  -8.00,  -0.02,
04/23 19Z,   0.50,  -6.18,  99.90,  -5.70,  -0.02,
04/23 20Z,   0.60,  -4.34,  99.90,  -3.76,  -0.02,
04/23 21Z,   0.60,  -3.46,  99.90,  -2.88,  -0.02,  (max)
04/23 22Z,   0.60,  -3.69,  99.90,  -3.11,  -0.02,
04/23 23Z,   0.60,  -4.84,  99.90,  -4.26,  -0.02,
04/24 00Z,   0.60,  -6.58,  99.90,  -6.00,  -0.02,
04/24 01Z,   0.60,  -8.58,  99.90,  -8.01,  -0.02,
04/24 02Z,   0.60, -10.45,  99.90,  -9.87,  -0.02,
04/24 03Z,   0.60, -11.44,  99.90, -10.87,  -0.02,  (min)
04/24 04Z,   0.50, -11.07,  99.90, -10.59,  -0.02,
04/24 05Z,   0.50,  -9.65,  99.90,  -9.17,  -0.02,
04/24 06Z,   0.50,  -7.76,  99.90,  -7.29,  -0.02,
04/24 07Z,   0.60,  -5.65,  99.90,  -5.07,  -0.02,
04/24 08Z,   0.60,  -3.68,  99.90,  -3.11,  -0.02,
04/24 09Z,   0.70,  -2.51,  99.90,  -1.83,  -0.02,
04/24 10Z,   0.70,  -2.47,  99.90,  -1.79,  -0.02,  (max)
04/24 11Z,   0.70,  -3.48,  99.90,  -2.80,  -0.02,
04/24 12Z,   0.70,  -5.22,  99.90,  -4.55,  -0.02,
04/24 13Z,   0.70,  -7.41,  99.90,  -6.73,  -0.02,
04/24 14Z,   0.70,  -9.74,  99.90,  -9.06,  -0.02,
04/24 15Z,   0.70, -11.62,  99.90, -10.94,  -0.02,
04/24 16Z,   0.70, -12.32,  99.90, -11.64,  -0.02,  (min)
04/24 17Z,   0.70, -11.73,  99.90, -11.06,  -0.02,
04/24 18Z,   0.60, -10.37,  99.90,  -9.79,  -0.02,
04/24 19Z,   0.60,  -8.50,  99.90,  -7.92,  -0.02,
04/24 20Z,   0.60,  -6.35,  99.90,  -5.77,  -0.02,
04/24 21Z,   0.60,  -4.52,  99.90,  -3.94,  -0.02,
04/24 22Z,   0.70,  -3.58,  99.90,  -2.91,  -0.02,  (max)
04/24 23Z,   0.70,  -3.70,  99.90,  -3.02,  -0.02,
04/25 00Z,   0.70,  -4.69,  99.90,  -4.01,  -0.02,
04/25 01Z,   0.70,  -6.29,  99.90,  -5.61,  -0.02,
04/25 02Z,   0.70,  -8.25,  99.90,  -7.58,  -0.02,
04/25 03Z,   0.70, -10.16,  99.90,  -9.48,  -0.02,
04/25 04Z,   0.60, -11.24,  99.90, -10.66,  -0.02,  (min)
04/25 05Z,   0.60, -11.04,  99.90, -10.47,  -0.02,
04/25 06Z,   0.50,  -9.89,  99.90,  -9.41,  -0.02,
04/25 07Z,   0.50,  -8.21,  99.90,  -7.73,  -0.02,
04/25 08Z,   0.50,  -6.16,  99.90,  -5.68,  -0.02,
04/25 09Z,   0.60,  -4.17,  99.90,  -3.59,  -0.02,
04/25 10Z,   0.60,  -2.92,  99.90,  -2.35,  -0.02,
04/25 11Z,   0.60,  -2.74,  99.90,  -2.16,  -0.02,  (max)
04/25 12Z,   0.60,  -3.53,  99.90,  -2.96,  -0.02,
04/25 13Z,   0.60,  -5.07,  99.90,  -4.50,  -0.02,
04/25 14Z,   0.70,  -7.13,  99.90,  -6.45,  -0.02,
04/25 15Z,   0.70,  -9.43,  99.90,  -8.75,  -0.02,
04/25 16Z,   0.70, -11.31,  99.90, -10.64,  -0.02,
04/25 17Z,   0.70, -12.06,  99.90, -11.38,  -0.02,  (min)
04/25 18Z,   0.70, -11.62,  99.90, -10.94,  -0.02,