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 : 05/23/2025 21:22:31 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/22 06Z,   0.60, -11.09, -10.01,  99.90,   0.48,  (min)
05/22 07Z,   0.60,  -9.50,  -8.65,  99.90,   0.25,
05/22 08Z,   0.60,  -7.53,  -6.93,  99.90,  -0.00,
05/22 09Z,   0.60,  -5.52,  -4.79,  99.90,   0.13,
05/22 10Z,   0.70,  -3.77,  -2.99,  99.90,   0.08,
05/22 11Z,   0.70,  -2.85,  -2.14,  99.90,   0.01,  (max)
05/22 12Z,   0.80,  -3.13,  -2.41,  99.90,  -0.08,
05/22 13Z,   0.90,  -4.45,  -3.61,  99.90,  -0.06,
05/22 14Z,   0.90,  -6.40,  -5.28,  99.90,   0.22,
05/22 15Z,   0.90,  -8.56,  -7.33,  99.90,   0.33,
05/22 16Z,   1.00, -10.57,  -9.35,  99.90,   0.22,
05/22 17Z,   1.10, -11.96, -10.76,  99.90,   0.10,  (min)
05/22 18Z,   1.30, -12.06, -10.52,  99.90,   0.24,
05/22 19Z,   1.40, -10.79,  -9.39,  99.90,  -0.00,
05/22 20Z,   1.50,  -8.78,  -7.57,  99.90,  -0.29,
05/22 21Z,   1.60,  -6.56,  -5.30,  99.90,  -0.34,
05/22 22Z,   1.70,  -4.41,  -2.97,  99.90,  -0.26,
05/22 23Z,   2.00,  -2.85,  -1.40,  99.90,  -0.55,
05/23 00Z,   2.00,  -2.43,  -0.90,  99.90,  -0.47,  (max)
05/23 01Z,   2.20,  -3.24,  -1.46,  99.90,  -0.42,
05/23 02Z,   2.30,  -4.96,  -2.79,  99.90,  -0.13,
05/23 03Z,   2.30,  -7.13,  -4.96,  99.90,  -0.13,
05/23 04Z,   2.40,  -9.39,  -6.98,  99.90,   0.01,
05/23 05Z,   2.20, -11.31,  -9.00,  99.90,   0.11,
05/23 06Z,   1.90, -12.22,  -9.96,  99.90,   0.36,  (min)
05/23 07Z,   1.90, -11.65,  -9.39,  99.90,   0.36,
05/23 08Z,   1.90,  -9.96,  -7.99,  99.90,   0.07,
05/23 09Z,   1.80,  -7.83,  -6.29,  99.90,  -0.26,
05/23 10Z,   1.60,  -5.60,  -4.15,  99.90,  -0.15,
05/23 11Z,   1.50,  -3.67,  -2.51,  99.90,  -0.34,
05/23 12Z,   1.10,  -2.70,  -1.71,  99.90,  -0.11,  (max)
05/23 13Z,   0.90,  -2.99,  -1.94,  99.90,   0.15,
05/23 14Z,   0.70,  -4.37,  -3.59,  99.90,   0.08,
05/23 15Z,   0.60,  -6.41,  -5.18,  99.90,   0.63,
05/23 16Z,   0.50,  -8.69,  -7.63,  99.90,   0.56,
05/23 17Z,   0.60, -10.82,  -9.85,  99.90,   0.37,
05/23 18Z,   0.60, -12.22, -11.08,  99.90,   0.54,  (min)
05/23 19Z,   0.50, -12.18, -10.98,  99.90,   0.70,
05/23 20Z,   0.50, -10.72,  -9.56,  99.90,   0.66,
05/23 21Z,   0.50,  -8.50,  -7.58,  99.90,   0.42,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/23 22Z,   0.50,  -6.05,  99.90,  -5.17,   0.38,
05/23 23Z,   0.50,  -3.72,  99.90,  -2.87,   0.34,
05/24 00Z,   0.40,  -2.14,  99.90,  -1.43,   0.31,
05/24 01Z,   0.40,  -1.84,  99.90,  -1.18,   0.27,  (max)
05/24 02Z,   0.40,  -2.85,  99.90,  -2.22,   0.23,
05/24 03Z,   0.40,  -4.81,  99.90,  -4.22,   0.19,
05/24 04Z,   0.30,  -7.26,  99.90,  -6.81,   0.15,
05/24 05Z,   0.20,  -9.81,  99.90,  -9.50,   0.11,
05/24 06Z,   0.20, -11.94,  99.90, -11.67,   0.07,
05/24 07Z,   0.20, -12.89,  99.90, -12.65,   0.03,  (min)
05/24 08Z,   0.20, -12.22,  99.90, -12.03,  -0.01,
05/24 09Z,   0.20, -10.40,  99.90, -10.25,  -0.04,
05/24 10Z,   0.30,  -8.07,  99.90,  -7.82,  -0.04,
05/24 11Z,   0.30,  -5.60,  99.90,  -5.34,  -0.04,
05/24 12Z,   0.30,  -3.52,  99.90,  -3.26,  -0.04,
05/24 13Z,   0.30,  -2.51,  99.90,  -2.25,  -0.04,  (max)
05/24 14Z,   0.30,  -2.84,  99.90,  -2.59,  -0.04,
05/24 15Z,   0.30,  -4.30,  99.90,  -4.04,  -0.04,
05/24 16Z,   0.30,  -6.45,  99.90,  -6.20,  -0.04,
05/24 17Z,   0.40,  -8.87,  99.90,  -8.51,  -0.04,
05/24 18Z,   0.40, -11.12,  99.90, -10.76,  -0.04,
05/24 19Z,   0.40, -12.48,  99.90, -12.12,  -0.04,  (min)
05/24 20Z,   0.50, -12.27,  99.90, -11.81,  -0.04,
05/24 21Z,   0.50, -10.58,  99.90, -10.13,  -0.04,
05/24 22Z,   0.50,  -8.15,  99.90,  -7.70,  -0.04,
05/24 23Z,   0.60,  -5.48,  99.90,  -4.92,  -0.04,
05/25 00Z,   0.60,  -3.01,  99.90,  -2.46,  -0.04,
05/25 01Z,   0.60,  -1.46,  99.90,  -0.91,  -0.04,
05/25 02Z,   0.50,  -1.33,  99.90,  -0.88,  -0.04,  (max)
05/25 03Z,   0.50,  -2.56,  99.90,  -2.11,  -0.04,
05/25 04Z,   0.40,  -4.77,  99.90,  -4.41,  -0.04,
05/25 05Z,   0.40,  -7.49,  99.90,  -7.14,  -0.04,
05/25 06Z,   0.40, -10.31,  99.90,  -9.95,  -0.04,
05/25 07Z,   0.30, -12.59,  99.90, -12.34,  -0.04,
05/25 08Z,   0.40, -13.50,  99.90, -13.15,  -0.04,  (min)
05/25 09Z,   0.40, -12.70,  99.90, -12.35,  -0.04,
05/25 10Z,   0.40, -10.72,  99.90, -10.36,  -0.04,
05/25 11Z,   0.40,  -8.18,  99.90,  -7.83,  -0.04,
05/25 12Z,   0.40,  -5.50,  99.90,  -5.15,  -0.04,
05/25 13Z,   0.40,  -3.32,  99.90,  -2.97,  -0.04,
05/25 14Z,   0.40,  -2.33,  99.90,  -1.97,  -0.04,  (max)
05/25 15Z,   0.30,  -2.74,  99.90,  -2.48,  -0.04,
05/25 16Z,   0.30,  -4.29,  99.90,  -4.03,  -0.04,
05/25 17Z,   0.40,  -6.56,  99.90,  -6.20,  -0.04,
05/25 18Z,   0.30,  -9.10,  99.90,  -8.85,  -0.04,
05/25 19Z,   0.30, -11.42,  99.90, -11.16,  -0.04,
05/25 20Z,   0.30, -12.69,  99.90, -12.44,  -0.04,  (min)
05/25 21Z,   0.30, -12.26,  99.90, -12.01,  -0.04,
05/25 22Z,   0.30, -10.36,  99.90, -10.11,  -0.04,
05/25 23Z,   0.30,  -7.74,  99.90,  -7.48,  -0.04,
05/26 00Z,   0.30,  -4.89,  99.90,  -4.64,  -0.04,
05/26 01Z,   0.30,  -2.37,  99.90,  -2.12,  -0.04,
05/26 02Z,   0.30,  -0.92,  99.90,  -0.67,  -0.04,  (max)
05/26 03Z,   0.30,  -0.98,  99.90,  -0.72,  -0.04,
05/26 04Z,   0.30,  -2.43,  99.90,  -2.17,  -0.04,
05/26 05Z,   0.20,  -4.86,  99.90,  -4.71,  -0.04,
05/26 06Z,   0.20,  -7.82,  99.90,  -7.66,  -0.04,
05/26 07Z,   0.20, -10.82,  99.90, -10.67,  -0.04,
05/26 08Z,   0.20, -13.16,  99.90, -13.01,  -0.04,
05/26 09Z,   0.30, -13.96,  99.90, -13.70,  -0.04,  (min)
05/26 10Z,   0.30, -12.99,  99.90, -12.73,  -0.04,
05/26 11Z,   0.30, -10.84,  99.90, -10.59,  -0.04,
05/26 12Z,   0.30,  -8.14,  99.90,  -7.89,  -0.04,
05/26 13Z,   0.30,  -5.33,  99.90,  -5.08,  -0.04,
05/26 14Z,   0.30,  -3.13,  99.90,  -2.88,  -0.04,
05/26 15Z,   0.30,  -2.21,  99.90,  -1.96,  -0.04,  (max)
05/26 16Z,   0.30,  -2.72,  99.90,  -2.46,  -0.04,
05/26 17Z,   0.30,  -4.37,  99.90,  -4.12,  -0.04,
05/26 18Z,   0.30,  -6.74,  99.90,  -6.48,  -0.04,
05/26 19Z,   0.30,  -9.37,  99.90,  -9.12,  -0.04,
05/26 20Z,   0.30, -11.69,  99.90, -11.44,  -0.04,
05/26 21Z,   0.30, -12.81,  99.90, -12.56,  -0.04,  (min)
05/26 22Z,   0.20, -12.14,  99.90, -11.99,  -0.04,
05/26 23Z,   0.30, -10.06,  99.90,  -9.80,  -0.04,
05/27 00Z,   0.30,  -7.30,  99.90,  -7.04,  -0.04,
05/27 01Z,   0.20,  -4.37,  99.90,  -4.21,  -0.04,
05/27 02Z,   0.20,  -1.88,  99.90,  -1.72,  -0.04,
05/27 03Z,   0.20,  -0.58,  99.90,  -0.43,  -0.04,  (max)
05/27 04Z,   0.20,  -0.84,  99.90,  -0.69,  -0.04,
05/27 05Z,   0.10,  -2.48,  99.90,  -2.43,  -0.04,
05/27 06Z,   0.10,  -5.09,  99.90,  -5.03,  -0.04,
05/27 07Z,   0.10,  -8.19,  99.90,  -8.13,  -0.04,
05/27 08Z,   0.10, -11.28,  99.90, -11.23,  -0.04,
05/27 09Z,   0.10, -13.57,  99.90, -13.51,  -0.04,
05/27 10Z,   0.10, -14.18,  99.90, -14.12,  -0.04,  (min)
05/27 11Z,   0.10, -13.02,  99.90, -12.97,  -0.04,
05/27 12Z,   0.10, -10.77,  99.90, -10.71,  -0.04,
05/27 13Z,  99.90,  -7.97,  99.90,  99.90,  -0.04,
05/27 14Z,  99.90,  -5.13,  99.90,  99.90,  -0.04,
05/27 15Z,  99.90,  -3.00,  99.90,  99.90,  -0.04,
05/27 16Z,  99.90,  -2.20,  99.90,  99.90,  -0.04,
05/27 17Z,  99.90,  -2.82,  99.90,  99.90,  -0.04,
05/27 18Z,  99.90,  -4.56,  99.90,  99.90,  -0.04,