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 : 05/15/2026 19:21:10 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/14 00Z,   0.00,   9.46,   9.21,  99.90,  -0.25,
05/14 01Z,   0.00,  10.33,  10.12,  99.90,  -0.21,  (max)
05/14 02Z,   0.00,   9.92,   9.67,  99.90,  -0.25,
05/14 03Z,   0.00,   8.44,   8.32,  99.90,  -0.12,
05/14 04Z,   0.00,   6.30,   6.49,  99.90,   0.19,
05/14 05Z,   0.00,   3.93,   4.15,  99.90,   0.22,
05/14 06Z,   0.00,   1.71,   2.08,  99.90,   0.37,
05/14 07Z,   0.00,   0.25,   0.57,  99.90,   0.32,  (min)
05/14 08Z,   0.00,   0.22,   0.71,  99.90,   0.49,
05/14 09Z,   0.00,   1.57,   2.27,  99.90,   0.70,
05/14 10Z,   0.10,   3.62,   4.07,  99.90,   0.35,
05/14 11Z,   0.10,   5.90,   6.34,  99.90,   0.34,
05/14 12Z,   0.30,   8.09,   8.49,  99.90,   0.10,
05/14 13Z,   0.30,   9.55,   9.94,  99.90,   0.09,
05/14 14Z,   0.30,   9.79,  10.01,  99.90,  -0.08,  (max)
05/14 15Z,   0.40,   8.81,   9.04,  99.90,  -0.17,
05/14 16Z,   0.40,   6.99,   7.40,  99.90,   0.01,
05/14 17Z,   0.50,   4.76,   5.26,  99.90,  -0.00,
05/14 18Z,   0.60,   2.53,   3.18,  99.90,   0.05,
05/14 19Z,   0.70,   0.80,   1.54,  99.90,   0.04,
05/14 20Z,   0.70,   0.33,   1.19,  99.90,   0.16,  (min)
05/14 21Z,   0.80,   1.43,   2.49,  99.90,   0.26,
05/14 22Z,   0.80,   3.55,   4.47,  99.90,   0.12,
05/14 23Z,   0.90,   6.00,   6.85,  99.90,  -0.05,
05/15 00Z,   0.80,   8.43,   9.33,  99.90,   0.10,
05/15 01Z,   0.90,  10.31,  11.03,  99.90,  -0.18,
05/15 02Z,   0.90,  10.99,  11.69,  99.90,  -0.20,  (max)
05/15 03Z,   1.00,  10.28,  10.84,  99.90,  -0.44,
05/15 04Z,   1.00,   8.46,   9.11,  99.90,  -0.35,
05/15 05Z,   1.10,   5.99,   6.74,  99.90,  -0.35,
05/15 06Z,   1.00,   3.32,   4.12,  99.90,  -0.20,
05/15 07Z,   1.00,   0.91,   1.65,  99.90,  -0.26,
05/15 08Z,   1.00,  -0.52,   0.32,  99.90,  -0.16,  (min)
05/15 09Z,   1.00,  -0.32,   0.67,  99.90,  -0.01,
05/15 10Z,   1.00,   1.30,   2.35,  99.90,   0.05,
05/15 11Z,   1.10,   3.62,   4.54,  99.90,  -0.18,
05/15 12Z,   0.90,   6.15,   7.03,  99.90,  -0.02,
05/15 13Z,   0.90,   8.47,   9.37,  99.90,  -0.00,
05/15 14Z,   0.90,   9.90,  10.59,  99.90,  -0.21,  (max)
05/15 15Z,   0.90,   9.99,  10.51,  99.90,  -0.38,
05/15 16Z,   0.90,   8.82,   9.34,  99.90,  -0.38,
05/15 17Z,   0.80,   6.80,   7.13,  99.90,  -0.47,
05/15 18Z,   0.80,   4.39,   4.71,  99.90,  -0.48,
05/15 19Z,   0.80,   2.04,   2.33,  99.90,  -0.51,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/15 20Z,   0.70,   0.37,  99.90,   0.60,  -0.47,
05/15 21Z,   0.60,   0.17,  99.90,   0.34,  -0.43,  (min)
05/15 22Z,   0.50,   1.61,  99.90,   1.72,  -0.39,
05/15 23Z,   0.40,   4.02,  99.90,   4.06,  -0.35,
05/16 00Z,   0.40,   6.71,  99.90,   6.79,  -0.31,
05/16 01Z,   0.30,   9.26,  99.90,   9.29,  -0.27,
05/16 02Z,   0.30,  11.06,  99.90,  11.12,  -0.23,
05/16 03Z,   0.20,  11.49,  99.90,  11.50,  -0.19,  (max)
05/16 04Z,   0.20,  10.47,  99.90,  10.52,  -0.15,
05/16 05Z,   0.20,   8.34,  99.90,   8.42,  -0.11,
05/16 06Z,   0.10,   5.58,  99.90,   5.61,  -0.08,
05/16 07Z,   0.10,   2.67,  99.90,   2.74,  -0.04,
05/16 08Z,   0.10,   0.16,  99.90,   0.23,  -0.04,
05/16 09Z,   0.20,  -1.15,  99.90,  -0.98,  -0.04,  (min)
05/16 10Z,   0.20,  -0.68,  99.90,  -0.51,  -0.04,
05/16 11Z,   0.20,   1.21,  99.90,   1.37,  -0.04,
05/16 12Z,   0.20,   3.75,  99.90,   3.91,  -0.04,
05/16 13Z,   0.10,   6.46,  99.90,   6.53,  -0.04,
05/16 14Z,   0.10,   8.84,  99.90,   8.91,  -0.04,
05/16 15Z,   0.10,  10.17,  99.90,  10.24,  -0.04,  (max)
05/16 16Z,   0.10,  10.08,  99.90,  10.14,  -0.04,
05/16 17Z,   0.00,   8.72,  99.90,   8.68,  -0.04,
05/16 18Z,   0.00,   6.52,  99.90,   6.49,  -0.04,
05/16 19Z,   0.00,   3.98,  99.90,   3.95,  -0.04,
05/16 20Z,   0.00,   1.58,  99.90,   1.55,  -0.04,
05/16 21Z,   0.00,   0.05,  99.90,   0.01,  -0.04,  (min)
05/16 22Z,   0.00,   0.15,  99.90,   0.11,  -0.04,
05/16 23Z,   0.00,   1.90,  99.90,   1.87,  -0.04,
05/17 00Z,  -0.10,   4.53,  99.90,   4.40,  -0.04,
05/17 01Z,  -0.20,   7.37,  99.90,   7.14,  -0.04,
05/17 02Z,  -0.20,   9.96,  99.90,   9.72,  -0.04,
05/17 03Z,  -0.20,  11.61,  99.90,  11.38,  -0.04,
05/17 04Z,  -0.20,  11.79,  99.90,  11.56,  -0.04,  (max)
05/17 05Z,  -0.30,  10.49,  99.90,  10.16,  -0.04,
05/17 06Z,  -0.30,   8.10,  99.90,   7.76,  -0.04,
05/17 07Z,  -0.30,   5.13,  99.90,   4.79,  -0.04,
05/17 08Z,  -0.20,   2.08,  99.90,   1.84,  -0.04,
05/17 09Z,  -0.20,  -0.43,  99.90,  -0.67,  -0.04,
05/17 10Z,  -0.20,  -1.55,  99.90,  -1.78,  -0.04,  (min)
05/17 11Z,  -0.30,  -0.80,  99.90,  -1.14,  -0.04,
05/17 12Z,  -0.20,   1.29,  99.90,   1.06,  -0.04,
05/17 13Z,  -0.20,   3.98,  99.90,   3.74,  -0.04,
05/17 14Z,  -0.20,   6.78,  99.90,   6.55,  -0.04,
05/17 15Z,  -0.30,   9.13,  99.90,   8.80,  -0.04,
05/17 16Z,  -0.30,  10.31,  99.90,   9.98,  -0.04,  (max)
05/17 17Z,  -0.30,  10.04,  99.90,   9.70,  -0.04,
05/17 18Z,  -0.30,   8.52,  99.90,   8.18,  -0.04,
05/17 19Z,  -0.40,   6.20,  99.90,   5.77,  -0.04,
05/17 20Z,  -0.40,   3.60,  99.90,   3.16,  -0.04,
05/17 21Z,  -0.30,   1.22,  99.90,   0.89,  -0.04,
05/17 22Z,  -0.20,  -0.13,  99.90,  -0.36,  -0.04,  (min)
05/17 23Z,  -0.20,   0.27,  99.90,   0.04,  -0.04,
05/18 00Z,  -0.10,   2.27,  99.90,   2.13,  -0.04,
05/18 01Z,  -0.10,   5.03,  99.90,   4.89,  -0.04,
05/18 02Z,  -0.10,   7.91,  99.90,   7.78,  -0.04,
05/18 03Z,   0.00,  10.44,  99.90,  10.41,  -0.04,
05/18 04Z,  -0.10,  11.92,  99.90,  11.78,  -0.04,  (max)
05/18 05Z,  -0.20,  11.86,  99.90,  11.62,  -0.04,
05/18 06Z,  -0.20,  10.34,  99.90,  10.11,  -0.04,
05/18 07Z,  -0.20,   7.79,  99.90,   7.55,  -0.04,
05/18 08Z,  -0.20,   4.71,  99.90,   4.48,  -0.04,
05/18 09Z,  -0.10,   1.63,  99.90,   1.50,  -0.04,
05/18 10Z,   0.00,  -0.79,  99.90,  -0.82,  -0.04,
05/18 11Z,   0.00,  -1.67,  99.90,  -1.70,  -0.04,  (min)
05/18 12Z,   0.00,  -0.69,  99.90,  -0.73,  -0.04,
05/18 13Z,   0.10,   1.52,  99.90,   1.59,  -0.04,
05/18 14Z,   0.10,   4.25,  99.90,   4.32,  -0.04,
05/18 15Z,   0.10,   7.05,  99.90,   7.11,  -0.04,
05/18 16Z,   0.10,   9.29,  99.90,   9.36,  -0.04,
05/18 17Z,   0.10,  10.31,  99.90,  10.37,  -0.04,  (max)
05/18 18Z,   0.10,   9.88,  99.90,   9.94,  -0.04,
05/18 19Z,   0.10,   8.25,  99.90,   8.32,  -0.04,
05/18 20Z,   0.10,   5.90,  99.90,   5.96,  -0.04,
05/18 21Z,   0.10,   3.30,  99.90,   3.36,  -0.04,
05/18 22Z,   0.10,   1.01,  99.90,   1.08,  -0.04,
05/18 23Z,   0.10,  -0.12,  99.90,  -0.06,  -0.04,  (min)
05/19 00Z,   0.00,   0.53,  99.90,   0.49,  -0.04,
05/19 01Z,   0.00,   2.65,  99.90,   2.62,  -0.04,
05/19 02Z,   0.00,   5.41,  99.90,   5.38,  -0.04,
05/19 03Z,   0.00,   8.25,  99.90,   8.21,  -0.04,
05/19 04Z,   0.00,  10.66,  99.90,  10.62,  -0.04,
05/19 05Z,   0.00,  11.94,  99.90,  11.91,  -0.04,  (max)
05/19 06Z,   0.00,  11.70,  99.90,  11.66,  -0.04,
05/19 07Z,   0.00,  10.06,  99.90,  10.02,  -0.04,
05/19 08Z,   0.00,   7.46,  99.90,   7.42,  -0.04,
05/19 09Z,  -0.10,   4.40,  99.90,   4.26,  -0.04,
05/19 10Z,  -0.10,   1.38,  99.90,   1.25,  -0.04,
05/19 11Z,  -0.10,  -0.87,  99.90,  -1.01,  -0.04,
05/19 12Z,   0.00,  -1.52,  99.90,  -1.55,  -0.04,