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 : 05/10/2026 20:21:53 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/09 00Z,   0.50,   5.25,   5.89,  99.90,   0.14,
05/09 01Z,   0.40,   3.81,   4.27,  99.90,   0.06,
05/09 02Z,   0.40,   2.64,   3.02,  99.90,  -0.02,
05/09 03Z,   0.40,   2.18,   2.64,  99.90,   0.06,  (min)
05/09 04Z,   0.40,   2.83,   3.28,  99.90,   0.05,
05/09 05Z,   0.30,   4.23,   4.52,  99.90,  -0.01,
05/09 06Z,   0.30,   5.77,   6.04,  99.90,  -0.03,
05/09 07Z,   0.30,   7.25,   7.55,  99.90,  -0.00,
05/09 08Z,   0.20,   8.53,   8.82,  99.90,   0.09,
05/09 09Z,   0.30,   9.12,   9.38,  99.90,  -0.04,  (max)
05/09 10Z,   0.30,   8.74,   8.99,  99.90,  -0.05,
05/09 11Z,   0.30,   7.53,   7.90,  99.90,   0.07,
05/09 12Z,   0.30,   5.87,   6.38,  99.90,   0.21,
05/09 13Z,   0.20,   4.13,   4.50,  99.90,   0.17,
05/09 14Z,   0.20,   2.55,   2.92,  99.90,   0.17,
05/09 15Z,   0.20,   1.49,   1.84,  99.90,   0.15,  (min)
05/09 16Z,   0.20,   1.45,   1.93,  99.90,   0.28,
05/09 17Z,   0.30,   2.44,   2.95,  99.90,   0.21,
05/09 18Z,   0.30,   3.86,   4.13,  99.90,  -0.03,
05/09 19Z,   0.30,   5.37,   5.83,  99.90,   0.16,
05/09 20Z,   0.30,   6.89,   7.44,  99.90,   0.25,
05/09 21Z,   0.30,   8.06,   8.41,  99.90,   0.05,
05/09 22Z,   0.30,   8.39,   8.81,  99.90,   0.12,  (max)
05/09 23Z,   0.30,   7.80,   8.27,  99.90,   0.17,
05/10 00Z,   0.30,   6.57,   7.05,  99.90,   0.18,
05/10 01Z,   0.30,   5.09,   5.66,  99.90,   0.27,
05/10 02Z,   0.20,   3.64,   4.15,  99.90,   0.31,
05/10 03Z,   0.20,   2.48,   2.92,  99.90,   0.24,
05/10 04Z,   0.20,   2.12,   2.84,  99.90,   0.52,  (min)
05/10 05Z,   0.30,   2.86,   3.78,  99.90,   0.62,
05/10 06Z,   0.40,   4.28,   4.73,  99.90,   0.05,
05/10 07Z,   0.40,   5.80,   6.35,  99.90,   0.15,
05/10 08Z,   0.40,   7.30,   7.90,  99.90,   0.20,
05/10 09Z,   0.40,   8.56,   9.01,  99.90,   0.05,
05/10 10Z,   0.40,   9.08,   9.51,  99.90,   0.03,  (max)
05/10 11Z,   0.50,   8.60,   8.99,  99.90,  -0.11,
05/10 12Z,   0.40,   7.32,   7.79,  99.90,   0.07,
05/10 13Z,   0.40,   5.64,   6.16,  99.90,   0.12,
05/10 14Z,   0.40,   3.91,   4.32,  99.90,   0.01,
05/10 15Z,   0.40,   2.35,   2.67,  99.90,  -0.08,
05/10 16Z,   0.50,   1.38,   1.78,  99.90,  -0.10,  (min)
05/10 17Z,   0.50,   1.50,   1.96,  99.90,  -0.04,
05/10 18Z,   0.50,   2.62,   2.82,  99.90,  -0.30,
05/10 19Z,   0.40,   4.13,   4.27,  99.90,  -0.26,
05/10 20Z,   0.40,   5.73,   6.00,  99.90,  -0.13,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/10 21Z,   0.40,   7.31,  99.90,   7.61,  -0.11,
05/10 22Z,   0.50,   8.44,  99.90,   8.85,  -0.09,
05/10 23Z,   0.50,   8.63,  99.90,   9.07,  -0.06,  (max)
05/11 00Z,   0.50,   7.90,  99.90,   8.36,  -0.04,
05/11 01Z,   0.50,   6.55,  99.90,   7.03,  -0.02,
05/11 02Z,   0.40,   4.96,  99.90,   5.36,  -0.00,
05/11 03Z,   0.40,   3.40,  99.90,   3.82,   0.02,
05/11 04Z,   0.40,   2.18,  99.90,   2.63,   0.04,
05/11 05Z,   0.30,   1.87,  99.90,   2.23,   0.06,  (min)
05/11 06Z,   0.30,   2.69,  99.90,   3.07,   0.08,
05/11 07Z,   0.30,   4.16,  99.90,   4.56,   0.11,
05/11 08Z,   0.30,   5.76,  99.90,   6.19,   0.13,
05/11 09Z,   0.30,   7.37,  99.90,   7.80,   0.13,
05/11 10Z,   0.30,   8.67,  99.90,   9.10,   0.13,
05/11 11Z,   0.30,   9.14,  99.90,   9.56,   0.13,  (max)
05/11 12Z,   0.30,   8.57,  99.90,   9.00,   0.13,
05/11 13Z,   0.30,   7.22,  99.90,   7.65,   0.13,
05/11 14Z,   0.30,   5.47,  99.90,   5.90,   0.13,
05/11 15Z,   0.30,   3.67,  99.90,   4.10,   0.13,
05/11 16Z,   0.30,   2.08,  99.90,   2.50,   0.13,
05/11 17Z,   0.20,   1.18,  99.90,   1.51,   0.13,  (min)
05/11 18Z,   0.30,   1.47,  99.90,   1.90,   0.13,
05/11 19Z,   0.30,   2.76,  99.90,   3.19,   0.13,
05/11 20Z,   0.30,   4.42,  99.90,   4.85,   0.13,
05/11 21Z,   0.30,   6.20,  99.90,   6.63,   0.13,
05/11 22Z,   0.30,   7.89,  99.90,   8.32,   0.13,
05/11 23Z,   0.30,   8.97,  99.90,   9.40,   0.13,
05/12 00Z,   0.40,   9.02,  99.90,   9.55,   0.13,  (max)
05/12 01Z,   0.40,   8.09,  99.90,   8.62,   0.13,
05/12 02Z,   0.40,   6.55,  99.90,   7.07,   0.13,
05/12 03Z,   0.40,   4.76,  99.90,   5.28,   0.13,
05/12 04Z,   0.40,   3.01,  99.90,   3.53,   0.13,
05/12 05Z,   0.40,   1.69,  99.90,   2.22,   0.13,
05/12 06Z,   0.40,   1.42,  99.90,   1.95,   0.13,  (min)
05/12 07Z,   0.50,   2.36,  99.90,   2.99,   0.13,
05/12 08Z,   0.50,   3.95,  99.90,   4.58,   0.13,
05/12 09Z,   0.50,   5.72,  99.90,   6.35,   0.13,
05/12 10Z,   0.50,   7.51,  99.90,   8.14,   0.13,
05/12 11Z,   0.50,   8.88,  99.90,   9.51,   0.13,
05/12 12Z,   0.50,   9.30,  99.90,   9.93,   0.13,  (max)
05/12 13Z,   0.60,   8.64,  99.90,   9.36,   0.13,
05/12 14Z,   0.60,   7.16,  99.90,   7.89,   0.13,
05/12 15Z,   0.60,   5.30,  99.90,   6.02,   0.13,
05/12 16Z,   0.50,   3.37,  99.90,   4.00,   0.13,
05/12 17Z,   0.50,   1.71,  99.90,   2.34,   0.13,
05/12 18Z,   0.50,   0.90,  99.90,   1.53,   0.13,  (min)
05/12 19Z,   0.50,   1.41,  99.90,   2.04,   0.13,
05/12 20Z,   0.60,   2.92,  99.90,   3.65,   0.13,
05/12 21Z,   0.60,   4.82,  99.90,   5.55,   0.13,
05/12 22Z,   0.60,   6.83,  99.90,   7.55,   0.13,
05/12 23Z,   0.70,   8.63,  99.90,   9.45,   0.13,
05/13 00Z,   0.70,   9.63,  99.90,  10.46,   0.13,  (max)
05/13 01Z,   0.70,   9.48,  99.90,  10.30,   0.13,
05/13 02Z,   0.70,   8.30,  99.90,   9.13,   0.13,
05/13 03Z,   0.70,   6.48,  99.90,   7.31,   0.13,
05/13 04Z,   0.60,   4.42,  99.90,   5.15,   0.13,
05/13 05Z,   0.60,   2.43,  99.90,   3.16,   0.13,
05/13 06Z,   0.50,   1.02,  99.90,   1.65,   0.13,
05/13 07Z,   0.50,   0.84,  99.90,   1.47,   0.13,  (min)
05/13 08Z,   0.50,   1.95,  99.90,   2.58,   0.13,
05/13 09Z,   0.50,   3.75,  99.90,   4.37,   0.13,
05/13 10Z,   0.50,   5.76,  99.90,   6.39,   0.13,
05/13 11Z,   0.50,   7.75,  99.90,   8.38,   0.13,
05/13 12Z,   0.50,   9.19,  99.90,   9.82,   0.13,
05/13 13Z,   0.60,   9.54,  99.90,  10.27,   0.13,  (max)
05/13 14Z,   0.50,   8.74,  99.90,   9.36,   0.13,
05/13 15Z,   0.50,   7.10,  99.90,   7.73,   0.13,
05/13 16Z,   0.50,   5.07,  99.90,   5.70,   0.13,
05/13 17Z,   0.50,   2.99,  99.90,   3.61,   0.13,
05/13 18Z,   0.40,   1.27,  99.90,   1.80,   0.13,
05/13 19Z,   0.30,   0.60,  99.90,   1.02,   0.13,  (min)
05/13 20Z,   0.30,   1.38,  99.90,   1.80,   0.13,
05/13 21Z,   0.30,   3.18,  99.90,   3.61,   0.13,
05/13 22Z,   0.30,   5.36,  99.90,   5.78,   0.13,
05/13 23Z,   0.40,   7.59,  99.90,   8.12,   0.13,
05/14 00Z,   0.40,   9.46,  99.90,   9.99,   0.13,
05/14 01Z,   0.40,  10.33,  99.90,  10.86,   0.13,  (max)
05/14 02Z,   0.40,   9.92,  99.90,  10.45,   0.13,
05/14 03Z,   0.40,   8.44,  99.90,   8.97,   0.13,
05/14 04Z,   0.40,   6.30,  99.90,   6.83,   0.13,
05/14 05Z,   0.30,   3.93,  99.90,   4.36,   0.13,
05/14 06Z,   0.30,   1.71,  99.90,   2.13,   0.13,
05/14 07Z,   0.30,   0.25,  99.90,   0.67,   0.13,
05/14 08Z,   0.30,   0.22,  99.90,   0.65,   0.13,  (min)
05/14 09Z,   0.40,   1.57,  99.90,   2.10,   0.13,
05/14 10Z,   0.40,   3.62,  99.90,   4.15,   0.13,
05/14 11Z,   0.50,   5.90,  99.90,   6.53,   0.13,
05/14 12Z,   0.50,   8.09,  99.90,   8.72,   0.13,