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 : 04/22/2026 05:22:50 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/20 12Z,   0.10,  -1.46,  -1.39,  99.90,  -0.03,
04/20 13Z,   0.20,  -0.73,  -0.23,  99.90,   0.30,  (min)
04/20 14Z,   0.20,   1.36,   1.72,  99.90,   0.16,
04/20 15Z,   0.20,   4.00,   4.29,  99.90,   0.09,
04/20 16Z,   0.20,   6.69,   7.08,  99.90,   0.19,
04/20 17Z,   0.20,   8.96,   9.39,  99.90,   0.23,
04/20 18Z,   0.20,  10.14,  10.42,  99.90,   0.08,  (max)
04/20 19Z,   0.20,   9.90,  10.03,  99.90,  -0.07,
04/20 20Z,   0.30,   8.42,   8.56,  99.90,  -0.16,
04/20 21Z,   0.30,   6.17,   6.34,  99.90,  -0.13,
04/20 22Z,   0.30,   3.65,   3.81,  99.90,  -0.14,
04/20 23Z,   0.40,   1.38,   1.55,  99.90,  -0.23,
04/21 00Z,   0.40,   0.06,   0.27,  99.90,  -0.19,  (min)
04/21 01Z,   0.40,   0.39,   0.86,  99.90,   0.07,
04/21 02Z,   0.40,   2.28,   2.90,  99.90,   0.22,
04/21 03Z,   0.40,   4.90,   5.35,  99.90,   0.05,
04/21 04Z,   0.40,   7.60,   8.03,  99.90,   0.03,
04/21 05Z,   0.40,   9.96,  10.51,  99.90,   0.15,
04/21 06Z,   0.40,  11.39,  11.67,  99.90,  -0.12,  (max)
04/21 07Z,   0.40,  11.39,  11.48,  99.90,  -0.31,
04/21 08Z,   0.50,  10.00,  10.02,  99.90,  -0.48,
04/21 09Z,   0.50,   7.63,   7.74,  99.90,  -0.39,
04/21 10Z,   0.50,   4.79,   4.98,  99.90,  -0.31,
04/21 11Z,   0.50,   1.96,   2.10,  99.90,  -0.36,
04/21 12Z,   0.40,  -0.27,  -0.20,  99.90,  -0.33,
04/21 13Z,   0.40,  -1.14,  -0.94,  99.90,  -0.20,  (min)
04/21 14Z,   0.40,  -0.27,   0.17,  99.90,   0.04,
04/21 15Z,   0.40,   1.76,   2.02,  99.90,  -0.14,
04/21 16Z,   0.40,   4.22,   4.37,  99.90,  -0.25,
04/21 17Z,   0.40,   6.73,   7.05,  99.90,  -0.08,
04/21 18Z,   0.30,   8.81,   9.13,  99.90,   0.02,
04/21 19Z,   0.30,   9.80,  10.00,  99.90,  -0.10,  (max)
04/21 20Z,   0.30,   9.46,   9.56,  99.90,  -0.20,
04/21 21Z,   0.40,   8.02,   8.10,  99.90,  -0.32,
04/21 22Z,   0.30,   5.90,   6.07,  99.90,  -0.13,
04/21 23Z,   0.30,   3.57,   3.61,  99.90,  -0.26,
04/22 00Z,   0.10,   1.49,   1.46,  99.90,  -0.13,
04/22 01Z,   0.10,   0.39,   0.33,  99.90,  -0.16,  (min)
04/22 02Z,   0.00,   0.87,   1.15,  99.90,   0.28,
04/22 03Z,   0.00,   2.73,   2.96,  99.90,   0.23,
04/22 04Z,   0.00,   5.15,   5.34,  99.90,   0.19,
04/22 05Z,   0.00,   7.63,   7.86,  99.90,   0.23,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/22 06Z,   0.00,   9.81,  99.90,  10.01,   0.21,
04/22 07Z,   0.00,  11.05,  99.90,  11.24,   0.19,  (max)
04/22 08Z,   0.00,  10.96,  99.90,  11.13,   0.17,
04/22 09Z,   0.00,   9.60,  99.90,   9.75,   0.15,
04/22 10Z,   0.00,   7.37,  99.90,   7.50,   0.13,
04/22 11Z,   0.10,   4.73,  99.90,   4.94,   0.11,
04/22 12Z,   0.10,   2.11,  99.90,   2.30,   0.09,
04/22 13Z,   0.10,   0.06,  99.90,   0.23,   0.07,
04/22 14Z,   0.10,  -0.65,  99.90,  -0.50,   0.05,  (min)
04/22 15Z,   0.10,   0.21,  99.90,   0.34,   0.03,
04/22 16Z,   0.20,   2.05,  99.90,   2.26,   0.01,
04/22 17Z,   0.10,   4.28,  99.90,   4.37,  -0.01,
04/22 18Z,   0.20,   6.61,  99.90,   6.80,  -0.01,
04/22 19Z,   0.10,   8.53,  99.90,   8.62,  -0.01,
04/22 20Z,   0.20,   9.42,  99.90,   9.61,  -0.01,  (max)
04/22 21Z,   0.20,   9.10,  99.90,   9.29,  -0.01,
04/22 22Z,   0.20,   7.78,  99.90,   7.97,  -0.01,
04/22 23Z,   0.20,   5.85,  99.90,   6.04,  -0.01,
04/23 00Z,   0.20,   3.70,  99.90,   3.90,  -0.01,
04/23 01Z,   0.30,   1.78,  99.90,   2.07,  -0.01,
04/23 02Z,   0.20,   0.79,  99.90,   0.98,  -0.01,  (min)
04/23 03Z,   0.20,   1.28,  99.90,   1.47,  -0.01,
04/23 04Z,   0.20,   2.95,  99.90,   3.14,  -0.01,
04/23 05Z,   0.20,   5.11,  99.90,   5.30,  -0.01,
04/23 06Z,   0.20,   7.38,  99.90,   7.57,  -0.01,
04/23 07Z,   0.20,   9.41,  99.90,   9.60,  -0.01,
04/23 08Z,   0.20,  10.57,  99.90,  10.77,  -0.01,  (max)
04/23 09Z,   0.20,  10.50,  99.90,  10.69,  -0.01,
04/23 10Z,   0.30,   9.29,  99.90,   9.58,  -0.01,
04/23 11Z,   0.30,   7.29,  99.90,   7.58,  -0.01,
04/23 12Z,   0.30,   4.89,  99.90,   5.18,  -0.01,
04/23 13Z,   0.30,   2.45,  99.90,   2.74,  -0.01,
04/23 14Z,   0.30,   0.52,  99.90,   0.81,  -0.01,
04/23 15Z,   0.30,  -0.15,  99.90,   0.15,  -0.01,  (min)
04/23 16Z,   0.30,   0.60,  99.90,   0.89,  -0.01,
04/23 17Z,   0.30,   2.19,  99.90,   2.49,  -0.01,
04/23 18Z,   0.30,   4.20,  99.90,   4.50,  -0.01,
04/23 19Z,   0.40,   6.40,  99.90,   6.79,  -0.01,
04/23 20Z,   0.40,   8.24,  99.90,   8.63,  -0.01,
04/23 21Z,   0.40,   9.12,  99.90,   9.52,  -0.01,  (max)
04/23 22Z,   0.50,   8.89,  99.90,   9.38,  -0.01,
04/23 23Z,   0.50,   7.74,  99.90,   8.23,  -0.01,
04/24 00Z,   0.50,   6.00,  99.90,   6.50,  -0.01,
04/24 01Z,   0.50,   4.00,  99.90,   4.49,  -0.01,
04/24 02Z,   0.50,   2.13,  99.90,   2.62,  -0.01,
04/24 03Z,   0.50,   1.14,  99.90,   1.63,  -0.01,  (min)
04/24 04Z,   0.50,   1.51,  99.90,   2.00,  -0.01,
04/24 05Z,   0.40,   2.93,  99.90,   3.32,  -0.01,
04/24 06Z,   0.40,   4.82,  99.90,   5.21,  -0.01,
04/24 07Z,   0.40,   6.93,  99.90,   7.32,  -0.01,
04/24 08Z,   0.50,   8.90,  99.90,   9.39,  -0.01,
04/24 09Z,   0.50,  10.07,  99.90,  10.56,  -0.01,
04/24 10Z,   0.60,  10.11,  99.90,  10.70,  -0.01,  (max)
04/24 11Z,   0.60,   9.10,  99.90,   9.70,  -0.01,
04/24 12Z,   0.60,   7.36,  99.90,   7.95,  -0.01,
04/24 13Z,   0.60,   5.17,  99.90,   5.76,  -0.01,
04/24 14Z,   0.60,   2.84,  99.90,   3.43,  -0.01,
04/24 15Z,   0.60,   0.96,  99.90,   1.55,  -0.01,
04/24 16Z,   0.60,   0.26,  99.90,   0.86,  -0.01,  (min)
04/24 17Z,   0.60,   0.85,  99.90,   1.44,  -0.01,
04/24 18Z,   0.50,   2.21,  99.90,   2.71,  -0.01,
04/24 19Z,   0.50,   4.08,  99.90,   4.57,  -0.01,
04/24 20Z,   0.50,   6.23,  99.90,   6.72,  -0.01,
04/24 21Z,   0.50,   8.06,  99.90,   8.56,  -0.01,
04/24 22Z,   0.50,   9.00,  99.90,   9.49,  -0.01,  (max)
04/24 23Z,   0.50,   8.88,  99.90,   9.37,  -0.01,
04/25 00Z,   0.50,   7.89,  99.90,   8.39,  -0.01,
04/25 01Z,   0.50,   6.29,  99.90,   6.79,  -0.01,
04/25 02Z,   0.50,   4.33,  99.90,   4.82,  -0.01,
04/25 03Z,   0.50,   2.42,  99.90,   2.91,  -0.01,
04/25 04Z,   0.50,   1.34,  99.90,   1.83,  -0.01,  (min)
04/25 05Z,   0.40,   1.54,  99.90,   1.93,  -0.01,
04/25 06Z,   0.40,   2.69,  99.90,   3.08,  -0.01,
04/25 07Z,   0.40,   4.37,  99.90,   4.77,  -0.01,
04/25 08Z,   0.40,   6.42,  99.90,   6.82,  -0.01,
04/25 09Z,   0.40,   8.41,  99.90,   8.80,  -0.01,
04/25 10Z,   0.40,   9.66,  99.90,  10.05,  -0.01,
04/25 11Z,   0.40,   9.84,  99.90,  10.23,  -0.01,  (max)
04/25 12Z,   0.40,   9.05,  99.90,   9.44,  -0.01,
04/25 13Z,   0.50,   7.51,  99.90,   8.00,  -0.01,
04/25 14Z,   0.40,   5.45,  99.90,   5.84,  -0.01,
04/25 15Z,   0.50,   3.15,  99.90,   3.64,  -0.01,
04/25 16Z,   0.50,   1.27,  99.90,   1.76,  -0.01,
04/25 17Z,   0.50,   0.52,  99.90,   1.01,  -0.01,  (min)
04/25 18Z,   0.60,   0.96,  99.90,   1.55,  -0.01,
04/25 19Z,   0.60,   2.18,  99.90,   2.78,  -0.01,
04/25 20Z,   0.60,   4.01,  99.90,   4.61,  -0.01,
04/25 21Z,   0.60,   6.20,  99.90,   6.79,  -0.01,
04/25 22Z,   0.60,   8.08,  99.90,   8.67,  -0.01,
04/25 23Z,   0.60,   9.07,  99.90,   9.67,  -0.01,  (max)
04/26 00Z,   0.50,   9.05,  99.90,   9.55,  -0.01,