EXTRA-TROPICAL  STORM  SURGE
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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 : 08/11/2026 09:23:45 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/09 18Z,   0.50,  -9.27,  -8.78,  99.90,  -0.01,
08/09 19Z,   0.50,  -9.31,  -8.69,  99.90,   0.12,  (min)
08/09 20Z,   0.50,  -8.00,  -7.26,  99.90,   0.24,
08/09 21Z,   0.50,  -5.95,  -5.37,  99.90,   0.08,
08/09 22Z,   0.50,  -3.65,  -3.13,  99.90,   0.02,
08/09 23Z,   0.50,  -1.40,  -0.94,  99.90,  -0.04,
08/10 00Z,   0.60,   0.18,   0.64,  99.90,  -0.14,
08/10 01Z,   0.60,   0.58,   1.10,  99.90,  -0.08,  (max)
08/10 02Z,   0.50,  -0.26,   0.13,  99.90,  -0.11,
08/10 03Z,   0.50,  -2.01,  -1.58,  99.90,  -0.07,
08/10 04Z,   0.50,  -4.32,  -3.80,  99.90,   0.02,
08/10 05Z,   0.50,  -6.86,  -6.32,  99.90,   0.04,
08/10 06Z,   0.50,  -9.19,  -8.64,  99.90,   0.05,
08/10 07Z,   0.50, -10.51,  -9.99,  99.90,   0.02,  (min)
08/10 08Z,   0.50, -10.34,  -9.77,  99.90,   0.07,
08/10 09Z,   0.60,  -9.01,  -8.37,  99.90,   0.04,
08/10 10Z,   0.60,  -7.05,  -6.52,  99.90,  -0.07,
08/10 11Z,   0.60,  -4.76,  -4.32,  99.90,  -0.16,
08/10 12Z,   0.50,  -2.62,  -2.07,  99.90,   0.05,
08/10 13Z,   0.50,  -1.33,  -0.75,  99.90,   0.08,
08/10 14Z,   0.50,  -1.22,  -0.66,  99.90,   0.06,  (max)
08/10 15Z,   0.50,  -2.16,  -1.62,  99.90,   0.04,
08/10 16Z,   0.50,  -3.84,  -3.25,  99.90,   0.09,
08/10 17Z,   0.60,  -5.92,  -5.36,  99.90,  -0.04,
08/10 18Z,   0.60,  -8.06,  -7.39,  99.90,   0.07,
08/10 19Z,   0.60,  -9.55,  -8.96,  99.90,  -0.01,
08/10 20Z,   0.60,  -9.63,  -9.05,  99.90,  -0.02,  (min)
08/10 21Z,   0.60,  -8.31,  -7.45,  99.90,   0.26,
08/10 22Z,   0.60,  -6.20,  -5.48,  99.90,   0.12,
08/10 23Z,   0.60,  -3.73,  -3.10,  99.90,   0.03,
08/11 00Z,   0.60,  -1.29,  -0.66,  99.90,   0.03,
08/11 01Z,   0.60,   0.42,   1.10,  99.90,   0.08,
08/11 02Z,   0.60,   0.87,   1.65,  99.90,   0.18,  (max)
08/11 03Z,   0.60,   0.04,   0.74,  99.90,   0.10,
08/11 04Z,   0.60,  -1.77,  -1.12,  99.90,   0.05,
08/11 05Z,   0.50,  -4.22,  -3.55,  99.90,   0.17,
08/11 06Z,   0.50,  -6.99,  -6.22,  99.90,   0.27,
08/11 07Z,   0.60,  -9.50,  -8.79,  99.90,   0.11,
08/11 08Z,   0.50, -10.88, -10.26,  99.90,   0.12,  (min)
08/11 09Z,   0.60, -10.66, -10.11,  99.90,  -0.05,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/11 10Z,   0.60,  -9.24,  99.90,  -8.68,  -0.04,
08/11 11Z,   0.60,  -7.11,  99.90,  -6.54,  -0.03,
08/11 12Z,   0.60,  -4.59,  99.90,  -4.01,  -0.02,
08/11 13Z,   0.60,  -2.29,  99.90,  -1.70,  -0.01,
08/11 14Z,   0.60,  -0.93,  99.90,  -0.34,  -0.00,
08/11 15Z,   0.60,  -0.83,  99.90,  -0.22,   0.01,  (max)
08/11 16Z,   0.60,  -1.84,  99.90,  -1.22,   0.01,
08/11 17Z,   0.60,  -3.66,  99.90,  -3.04,   0.02,
08/11 18Z,   0.60,  -5.97,  99.90,  -5.34,   0.03,
08/11 19Z,   0.60,  -8.34,  99.90,  -7.70,   0.04,
08/11 20Z,   0.60,  -9.93,  99.90,  -9.28,   0.05,
08/11 21Z,   0.60,  -9.99,  99.90,  -9.33,   0.06,  (min)
08/11 22Z,   0.60,  -8.60,  99.90,  -7.94,   0.06,
08/11 23Z,   0.60,  -6.38,  99.90,  -5.72,   0.06,
08/12 00Z,   0.70,  -3.72,  99.90,  -2.96,   0.06,
08/12 01Z,   0.70,  -1.12,  99.90,  -0.36,   0.06,
08/12 02Z,   0.70,   0.65,  99.90,   1.41,   0.06,
08/12 03Z,   0.70,   1.10,  99.90,   1.86,   0.06,  (max)
08/12 04Z,   0.70,   0.22,  99.90,   0.98,   0.06,
08/12 05Z,   0.60,  -1.71,  99.90,  -1.05,   0.06,
08/12 06Z,   0.60,  -4.34,  99.90,  -3.67,   0.06,
08/12 07Z,   0.60,  -7.30,  99.90,  -6.64,   0.06,
08/12 08Z,   0.60,  -9.90,  99.90,  -9.24,   0.06,
08/12 09Z,   0.60, -11.21,  99.90, -10.54,   0.06,  (min)
08/12 10Z,   0.60, -10.84,  99.90, -10.18,   0.06,
08/12 11Z,   0.70,  -9.25,  99.90,  -8.49,   0.06,
08/12 12Z,   0.70,  -6.91,  99.90,  -6.15,   0.06,
08/12 13Z,   0.70,  -4.19,  99.90,  -3.43,   0.06,
08/12 14Z,   0.70,  -1.80,  99.90,  -1.04,   0.06,
08/12 15Z,   0.70,  -0.47,  99.90,   0.29,   0.06,
08/12 16Z,   0.70,  -0.46,  99.90,   0.30,   0.06,  (max)
08/12 17Z,   0.70,  -1.62,  99.90,  -0.86,   0.06,
08/12 18Z,   0.70,  -3.65,  99.90,  -2.89,   0.06,
08/12 19Z,   0.70,  -6.20,  99.90,  -5.44,   0.06,
08/12 20Z,   0.70,  -8.73,  99.90,  -7.97,   0.06,
08/12 21Z,   0.70, -10.33,  99.90,  -9.56,   0.06,  (min)
08/12 22Z,   0.70, -10.27,  99.90,  -9.51,   0.06,
08/12 23Z,   0.70,  -8.76,  99.90,  -8.00,   0.06,
08/13 00Z,   0.80,  -6.40,  99.90,  -5.54,   0.06,
08/13 01Z,   0.70,  -3.60,  99.90,  -2.83,   0.06,
08/13 02Z,   0.80,  -0.92,  99.90,  -0.06,   0.06,
08/13 03Z,   0.70,   0.83,  99.90,   1.59,   0.06,
08/13 04Z,   0.70,   1.18,  99.90,   1.94,   0.06,  (max)
08/13 05Z,   0.60,   0.17,  99.90,   0.83,   0.06,
08/13 06Z,   0.60,  -1.89,  99.90,  -1.23,   0.06,
08/13 07Z,   0.70,  -4.68,  99.90,  -3.92,   0.06,
08/13 08Z,   0.70,  -7.75,  99.90,  -6.99,   0.06,
08/13 09Z,   0.70, -10.31,  99.90,  -9.55,   0.06,
08/13 10Z,   0.70, -11.39,  99.90, -10.63,   0.06,  (min)
08/13 11Z,   0.70, -10.78,  99.90, -10.02,   0.06,
08/13 12Z,   0.70,  -8.98,  99.90,  -8.22,   0.06,
08/13 13Z,   0.70,  -6.44,  99.90,  -5.68,   0.06,
08/13 14Z,   0.70,  -3.60,  99.90,  -2.84,   0.06,
08/13 15Z,   0.70,  -1.24,  99.90,  -0.48,   0.06,
08/13 16Z,   0.60,  -0.05,  99.90,   0.61,   0.06,  (max)
08/13 17Z,   0.60,  -0.23,  99.90,   0.43,   0.06,
08/13 18Z,   0.60,  -1.60,  99.90,  -0.94,   0.06,
08/13 19Z,   0.60,  -3.84,  99.90,  -3.18,   0.06,
08/13 20Z,   0.60,  -6.57,  99.90,  -5.90,   0.06,
08/13 21Z,   0.60,  -9.16,  99.90,  -8.50,   0.06,
08/13 22Z,   0.60, -10.63,  99.90,  -9.97,   0.06,  (min)
08/13 23Z,   0.50, -10.38,  99.90,  -9.82,   0.06,
08/14 00Z,   0.60,  -8.73,  99.90,  -8.07,   0.06,
08/14 01Z,   0.50,  -6.26,  99.90,  -5.70,   0.06,
08/14 02Z,   0.50,  -3.38,  99.90,  -2.82,   0.06,
08/14 03Z,   0.40,  -0.74,  99.90,  -0.28,   0.06,
08/14 04Z,   0.30,   0.86,  99.90,   1.22,   0.06,
08/14 05Z,   0.30,   1.04,  99.90,   1.40,   0.06,  (max)
08/14 06Z,   0.30,  -0.13,  99.90,   0.23,   0.06,
08/14 07Z,   0.30,  -2.34,  99.90,  -1.98,   0.06,
08/14 08Z,   0.40,  -5.21,  99.90,  -4.75,   0.06,
08/14 09Z,   0.30,  -8.25,  99.90,  -7.89,   0.06,
08/14 10Z,   0.40, -10.60,  99.90, -10.14,   0.06,
08/14 11Z,   0.40, -11.35,  99.90, -10.89,   0.06,  (min)
08/14 12Z,   0.40, -10.44,  99.90,  -9.98,   0.06,
08/14 13Z,   0.40,  -8.43,  99.90,  -7.97,   0.06,
08/14 14Z,   0.30,  -5.77,  99.90,  -5.41,   0.06,
08/14 15Z,   0.30,  -2.92,  99.90,  -2.56,   0.06,
08/14 16Z,   0.30,  -0.71,  99.90,  -0.35,   0.06,
08/14 17Z,   0.30,   0.23,  99.90,   0.59,   0.06,  (max)
08/14 18Z,   0.30,  -0.20,  99.90,   0.16,   0.06,
08/14 19Z,   0.30,  -1.80,  99.90,  -1.44,   0.06,
08/14 20Z,   0.30,  -4.21,  99.90,  -3.84,   0.06,
08/14 21Z,   0.30,  -7.02,  99.90,  -6.65,   0.06,
08/14 22Z,   0.30,  -9.53,  99.90,  -9.17,   0.06,
08/14 23Z,   0.40, -10.76,  99.90, -10.30,   0.06,  (min)
08/15 00Z,   0.30, -10.27,  99.90,  -9.91,   0.06,
08/15 01Z,  99.90,  -8.50,  99.90,  99.90,   0.06,
08/15 02Z,  99.90,  -5.99,  99.90,  99.90,   0.06,
08/15 03Z,  99.90,  -3.15,  99.90,  99.90,   0.06,
08/15 04Z,  99.90,  -0.66,  99.90,  99.90,   0.06,
08/15 05Z,  99.90,   0.71,  99.90,  99.90,   0.06,
08/15 06Z,  99.90,   0.65,  99.90,  99.90,   0.06,