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 : 07/11/2026 22:22:46 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/10 06Z,   0.50, -12.22, -11.25,  99.90,   0.47,  (min)
07/10 07Z,   0.50, -11.07, -10.03,  99.90,   0.54,
07/10 08Z,   0.50,  -9.21,  -8.37,  99.90,   0.34,
07/10 09Z,   0.50,  -7.19,  -6.36,  99.90,   0.33,
07/10 10Z,   0.50,  -5.25,  -4.33,  99.90,   0.42,
07/10 11Z,   0.50,  -3.86,  -3.08,  99.90,   0.28,
07/10 12Z,   0.60,  -3.54,  -2.81,  99.90,   0.13,  (max)
07/10 13Z,   0.60,  -4.35,  -3.76,  99.90,  -0.01,
07/10 14Z,   0.60,  -5.96,  -5.22,  99.90,   0.14,
07/10 15Z,   0.60,  -7.89,  -7.21,  99.90,   0.08,
07/10 16Z,   0.60,  -9.79,  -9.16,  99.90,   0.03,
07/10 17Z,   0.60, -11.28, -10.62,  99.90,   0.06,
07/10 18Z,   0.70, -11.76, -10.95,  99.90,   0.11,  (min)
07/10 19Z,   0.70, -10.79,  -9.58,  99.90,   0.51,
07/10 20Z,   0.70,  -8.80,  -7.86,  99.90,   0.24,
07/10 21Z,   0.80,  -6.50,  -5.72,  99.90,  -0.02,
07/10 22Z,   0.70,  -4.27,  -3.60,  99.90,  -0.03,
07/10 23Z,   0.80,  -2.49,  -1.86,  99.90,  -0.17,
07/11 00Z,   0.80,  -1.73,  -1.13,  99.90,  -0.20,  (max)
07/11 01Z,   0.80,  -2.28,  -1.74,  99.90,  -0.26,
07/11 02Z,   0.70,  -3.89,  -3.40,  99.90,  -0.21,
07/11 03Z,   0.70,  -6.12,  -5.43,  99.90,  -0.01,
07/11 04Z,   0.70,  -8.54,  -7.86,  99.90,  -0.02,
07/11 05Z,   0.70, -10.81, -10.15,  99.90,  -0.04,
07/11 06Z,   0.70, -12.39, -11.63,  99.90,   0.06,
07/11 07Z,   0.70, -12.61, -11.68,  99.90,   0.23,  (min)
07/11 08Z,   0.70, -11.44, -10.52,  99.90,   0.22,
07/11 09Z,   0.70,  -9.54,  -8.77,  99.90,   0.07,
07/11 10Z,   0.70,  -7.40,  -6.64,  99.90,   0.06,
07/11 11Z,   0.70,  -5.29,  -4.44,  99.90,   0.15,
07/11 12Z,   0.70,  -3.80,  -3.00,  99.90,   0.10,
07/11 13Z,   0.70,  -3.44,  -2.72,  99.90,   0.02,  (max)
07/11 14Z,   0.70,  -4.23,  -3.54,  99.90,  -0.01,
07/11 15Z,   0.70,  -5.83,  -5.17,  99.90,  -0.04,
07/11 16Z,   0.70,  -7.81,  -7.23,  99.90,  -0.12,
07/11 17Z,   0.70,  -9.82,  -9.25,  99.90,  -0.13,
07/11 18Z,   0.70, -11.41, -10.88,  99.90,  -0.17,
07/11 19Z,   0.70, -11.89, -11.09,  99.90,   0.10,  (min)
07/11 20Z,   0.70, -10.85,  -9.84,  99.90,   0.31,
07/11 21Z,   0.70,  -8.79,  -7.87,  99.90,   0.22,
07/11 22Z,   0.70,  -6.39,  -5.62,  99.90,   0.07,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/11 23Z,   0.70,  -4.01,  99.90,  -3.24,   0.07,
07/12 00Z,   0.70,  -2.13,  99.90,  -1.36,   0.07,
07/12 01Z,   0.70,  -1.38,  99.90,  -0.61,   0.07,  (max)
07/12 02Z,   0.70,  -1.97,  99.90,  -1.20,   0.07,
07/12 03Z,   0.60,  -3.66,  99.90,  -2.98,   0.07,
07/12 04Z,   0.50,  -6.00,  99.90,  -5.43,   0.07,
07/12 05Z,   0.50,  -8.61,  99.90,  -8.04,   0.07,
07/12 06Z,   0.40, -11.09,  99.90, -10.62,   0.07,
07/12 07Z,   0.40, -12.80,  99.90, -12.32,   0.07,
07/12 08Z,   0.50, -13.02,  99.90, -12.44,   0.08,  (min)
07/12 09Z,   0.50, -11.81,  99.90, -11.24,   0.08,
07/12 10Z,   0.50,  -9.83,  99.90,  -9.25,   0.08,
07/12 11Z,   0.50,  -7.51,  99.90,  -6.93,   0.08,
07/12 12Z,   0.60,  -5.22,  99.90,  -4.55,   0.08,
07/12 13Z,   0.60,  -3.63,  99.90,  -2.96,   0.08,
07/12 14Z,   0.60,  -3.24,  99.90,  -2.56,   0.08,  (max)
07/12 15Z,   0.60,  -4.02,  99.90,  -3.35,   0.08,
07/12 16Z,   0.50,  -5.66,  99.90,  -5.08,   0.08,
07/12 17Z,   0.50,  -7.74,  99.90,  -7.17,   0.08,
07/12 18Z,   0.50,  -9.92,  99.90,  -9.34,   0.08,
07/12 19Z,   0.50, -11.64,  99.90, -11.06,   0.08,
07/12 20Z,   0.50, -12.11,  99.90, -11.53,   0.08,  (min)
07/12 21Z,   0.50, -11.00,  99.90, -10.43,   0.08,
07/12 22Z,   0.50,  -8.86,  99.90,  -8.28,   0.08,
07/12 23Z,   0.50,  -6.32,  99.90,  -5.75,   0.08,
07/13 00Z,   0.50,  -3.78,  99.90,  -3.21,   0.08,
07/13 01Z,   0.50,  -1.81,  99.90,  -1.23,   0.08,
07/13 02Z,   0.50,  -1.05,  99.90,  -0.47,   0.08,  (max)
07/13 03Z,   0.40,  -1.68,  99.90,  -1.21,   0.08,
07/13 04Z,   0.40,  -3.45,  99.90,  -2.97,   0.08,
07/13 05Z,   0.30,  -5.93,  99.90,  -5.56,   0.08,
07/13 06Z,   0.30,  -8.74,  99.90,  -8.36,   0.08,
07/13 07Z,   0.30, -11.42,  99.90, -11.05,   0.08,
07/13 08Z,   0.30, -13.20,  99.90, -12.83,   0.08,
07/13 09Z,   0.30, -13.38,  99.90, -13.00,   0.08,  (min)
07/13 10Z,   0.30, -12.09,  99.90, -11.71,   0.08,
07/13 11Z,   0.30,  -9.98,  99.90,  -9.60,   0.08,
07/13 12Z,   0.30,  -7.48,  99.90,  -7.10,   0.08,
07/13 13Z,   0.30,  -5.03,  99.90,  -4.65,   0.08,
07/13 14Z,   0.30,  -3.36,  99.90,  -2.99,   0.08,
07/13 15Z,   0.30,  -2.96,  99.90,  -2.59,   0.08,  (max)
07/13 16Z,   0.30,  -3.79,  99.90,  -3.41,   0.08,
07/13 17Z,   0.30,  -5.51,  99.90,  -5.13,   0.08,
07/13 18Z,   0.30,  -7.75,  99.90,  -7.37,   0.08,
07/13 19Z,   0.20, -10.11,  99.90,  -9.83,   0.08,
07/13 20Z,   0.20, -11.93,  99.90, -11.66,   0.08,
07/13 21Z,   0.20, -12.37,  99.90, -12.09,   0.08,  (min)
07/13 22Z,   0.20, -11.17,  99.90, -10.89,   0.08,
07/13 23Z,   0.20,  -8.93,  99.90,  -8.65,   0.08,
07/14 00Z,   0.20,  -6.25,  99.90,  -5.98,   0.08,
07/14 01Z,   0.20,  -3.57,  99.90,  -3.29,   0.08,
07/14 02Z,   0.10,  -1.53,  99.90,  -1.36,   0.08,
07/14 03Z,   0.10,  -0.79,  99.90,  -0.62,   0.08,  (max)
07/14 04Z,   0.10,  -1.49,  99.90,  -1.31,   0.08,
07/14 05Z,   0.10,  -3.35,  99.90,  -3.17,   0.08,
07/14 06Z,   0.10,  -5.97,  99.90,  -5.79,   0.08,
07/14 07Z,   0.00,  -8.96,  99.90,  -8.89,   0.08,
07/14 08Z,   0.10, -11.79,  99.90, -11.61,   0.08,
07/14 09Z,   0.10, -13.56,  99.90, -13.38,   0.08,
07/14 10Z,   0.10, -13.62,  99.90, -13.44,   0.08,  (min)
07/14 11Z,   0.10, -12.20,  99.90, -12.03,   0.08,
07/14 12Z,   0.10,  -9.95,  99.90,  -9.78,   0.08,
07/14 13Z,   0.10,  -7.27,  99.90,  -7.10,   0.08,
07/14 14Z,   0.10,  -4.71,  99.90,  -4.54,   0.08,
07/14 15Z,   0.10,  -3.04,  99.90,  -2.86,   0.08,
07/14 16Z,   0.10,  -2.68,  99.90,  -2.51,   0.08,  (max)
07/14 17Z,   0.10,  -3.59,  99.90,  -3.42,   0.08,
07/14 18Z,   0.10,  -5.44,  99.90,  -5.27,   0.08,
07/14 19Z,   0.10,  -7.85,  99.90,  -7.67,   0.08,
07/14 20Z,   0.10, -10.37,  99.90, -10.20,   0.08,
07/14 21Z,   0.10, -12.24,  99.90, -12.07,   0.08,
07/14 22Z,   0.00, -12.58,  99.90, -12.51,   0.08,  (min)
07/14 23Z,   0.00, -11.27,  99.90, -11.19,   0.08,
07/15 00Z,   0.00,  -8.94,  99.90,  -8.86,   0.08,
07/15 01Z,   0.00,  -6.16,  99.90,  -6.08,   0.08,
07/15 02Z,   0.00,  -3.38,  99.90,  -3.31,   0.08,
07/15 03Z,   0.00,  -1.35,  99.90,  -1.27,   0.08,
07/15 04Z,   0.00,  -0.68,  99.90,  -0.60,   0.08,  (max)
07/15 05Z,  -0.10,  -1.46,  99.90,  -1.48,   0.08,
07/15 06Z,  -0.10,  -3.42,  99.90,  -3.44,   0.08,
07/15 07Z,  -0.20,  -6.16,  99.90,  -6.29,   0.08,
07/15 08Z,  -0.10,  -9.28,  99.90,  -9.30,   0.08,
07/15 09Z,  -0.20, -12.14,  99.90, -12.27,   0.08,
07/15 10Z,  -0.20, -13.80,  99.90, -13.92,   0.08,  (min)
07/15 11Z,  -0.20, -13.67,  99.90, -13.79,   0.08,
07/15 12Z,  -0.10, -12.10,  99.90, -12.13,   0.08,
07/15 13Z,  99.90,  -9.72,  99.90,  99.90,   0.08,
07/15 14Z,  99.90,  -6.92,  99.90,  99.90,   0.08,
07/15 15Z,  99.90,  -4.32,  99.90,  99.90,   0.08,
07/15 16Z,  99.90,  -2.71,  99.90,  99.90,   0.08,
07/15 17Z,  99.90,  -2.46,  99.90,  99.90,   0.08,
07/15 18Z,  99.90,  -3.50,  99.90,  99.90,   0.08,