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 : 04/21/2026 01:21:01 GMT (units in feet MSL)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/19 06Z,   0.50,   5.50,   6.22,  99.90,   0.22,  (max)
04/19 07Z,   0.50,   3.26,   3.92,  99.90,   0.16,
04/19 08Z,   0.50,   0.34,   1.09,  99.90,   0.25,
04/19 09Z,   0.40,  -2.72,  -1.99,  99.90,   0.33,
04/19 10Z,   0.40,  -5.35,  -4.54,  99.90,   0.41,
04/19 11Z,   0.40,  -6.74,  -5.93,  99.90,   0.41,  (min)
04/19 12Z,   0.60,  -6.28,  -5.30,  99.90,   0.38,
04/19 13Z,   0.60,  -4.27,  -3.24,  99.90,   0.43,
04/19 14Z,   0.60,  -1.58,  -0.76,  99.90,   0.22,
04/19 15Z,   0.60,   1.24,   2.03,  99.90,   0.19,
04/19 16Z,   0.60,   3.70,   4.45,  99.90,   0.15,
04/19 17Z,   0.50,   5.11,   5.79,  99.90,   0.18,  (max)
04/19 18Z,   0.70,   5.06,   5.49,  99.90,  -0.27,
04/19 19Z,   0.60,   3.67,   4.00,  99.90,  -0.27,
04/19 20Z,   0.60,   1.38,   1.74,  99.90,  -0.24,
04/19 21Z,   0.60,  -1.25,  -1.17,  99.90,  -0.52,
04/19 22Z,   0.60,  -3.72,  -3.55,  99.90,  -0.43,
04/19 23Z,   0.50,  -5.32,  -5.25,  99.90,  -0.43,  (min)
04/20 00Z,   0.30,  -5.28,  -5.07,  99.90,  -0.09,
04/20 01Z,   0.30,  -3.52,  -3.14,  99.90,   0.08,
04/20 02Z,   0.20,  -0.84,  -0.50,  99.90,   0.14,
04/20 03Z,   0.10,   2.00,   2.26,  99.90,   0.16,
04/20 04Z,   0.10,   4.57,   4.84,  99.90,   0.17,
04/20 05Z,   0.00,   6.24,   6.50,  99.90,   0.26,  (max)
04/20 06Z,   0.00,   6.46,   6.41,  99.90,  -0.05,
04/20 07Z,   0.00,   5.18,   5.14,  99.90,  -0.04,
04/20 08Z,   0.10,   2.80,   2.95,  99.90,   0.05,
04/20 09Z,   0.10,  -0.15,   0.01,  99.90,   0.06,
04/20 10Z,   0.10,  -3.14,  -3.12,  99.90,  -0.08,
04/20 11Z,   0.10,  -5.59,  -5.37,  99.90,   0.12,
04/20 12Z,   0.10,  -6.69,  -6.62,  99.90,  -0.03,  (min)
04/20 13Z,   0.20,  -5.96,  -5.46,  99.90,   0.30,
04/20 14Z,   0.20,  -3.87,  -3.51,  99.90,   0.16,
04/20 15Z,   0.20,  -1.23,  -0.94,  99.90,   0.09,
04/20 16Z,   0.20,   1.46,   1.85,  99.90,   0.19,
04/20 17Z,   0.20,   3.73,   4.16,  99.90,   0.23,
04/20 18Z,   0.20,   4.91,   5.19,  99.90,   0.08,  (max)
04/20 19Z,   0.20,   4.67,   4.80,  99.90,  -0.07,
04/20 20Z,   0.30,   3.19,   3.33,  99.90,  -0.16,
04/20 21Z,   0.30,   0.94,   1.11,  99.90,  -0.13,
04/20 22Z,   0.30,  -1.58,  -1.42,  99.90,  -0.14,
04/20 23Z,   0.40,  -3.85,  -3.68,  99.90,  -0.23,
04/21 00Z,   0.40,  -5.17,  -4.96,  99.90,  -0.19,  (min)
04/21 01Z,   0.40,  -4.84,  -4.37,  99.90,   0.07,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/21 02Z,   0.40,  -2.95,  99.90,  -2.48,   0.06,
04/21 03Z,   0.50,  -0.33,  99.90,   0.23,   0.06,
04/21 04Z,   0.50,   2.37,  99.90,   2.92,   0.05,
04/21 05Z,   0.40,   4.73,  99.90,   5.18,   0.04,
04/21 06Z,   0.40,   6.16,  99.90,   6.60,   0.04,  (max)
04/21 07Z,   0.40,   6.16,  99.90,   6.59,   0.03,
04/21 08Z,   0.40,   4.77,  99.90,   5.20,   0.03,
04/21 09Z,   0.40,   2.40,  99.90,   2.82,   0.02,
04/21 10Z,   0.40,  -0.44,  99.90,  -0.03,   0.01,
04/21 11Z,   0.50,  -3.27,  99.90,  -2.76,   0.01,
04/21 12Z,   0.50,  -5.50,  99.90,  -5.00,   0.00,
04/21 13Z,   0.50,  -6.37,  99.90,  -5.87,  -0.01,  (min)
04/21 14Z,   0.50,  -5.50,  99.90,  -5.01,  -0.01,
04/21 15Z,   0.60,  -3.47,  99.90,  -2.88,  -0.01,
04/21 16Z,   0.50,  -1.01,  99.90,  -0.52,  -0.01,
04/21 17Z,   0.50,   1.50,  99.90,   2.00,  -0.01,
04/21 18Z,   0.50,   3.58,  99.90,   4.07,  -0.01,
04/21 19Z,   0.50,   4.57,  99.90,   5.06,  -0.01,  (max)
04/21 20Z,   0.50,   4.23,  99.90,   4.73,  -0.01,
04/21 21Z,   0.50,   2.79,  99.90,   3.28,  -0.01,
04/21 22Z,   0.50,   0.67,  99.90,   1.16,  -0.01,
04/21 23Z,   0.50,  -1.66,  99.90,  -1.17,  -0.01,
04/22 00Z,   0.50,  -3.74,  99.90,  -3.24,  -0.01,
04/22 01Z,   0.50,  -4.84,  99.90,  -4.35,  -0.01,  (min)
04/22 02Z,   0.40,  -4.36,  99.90,  -3.96,  -0.01,
04/22 03Z,   0.40,  -2.50,  99.90,  -2.11,  -0.01,
04/22 04Z,   0.30,  -0.08,  99.90,   0.21,  -0.01,
04/22 05Z,   0.30,   2.40,  99.90,   2.70,  -0.01,
04/22 06Z,   0.30,   4.58,  99.90,   4.87,  -0.01,
04/22 07Z,   0.30,   5.82,  99.90,   6.12,  -0.01,  (max)
04/22 08Z,   0.30,   5.73,  99.90,   6.02,  -0.01,
04/22 09Z,   0.30,   4.37,  99.90,   4.66,  -0.01,
04/22 10Z,   0.40,   2.14,  99.90,   2.53,  -0.01,
04/22 11Z,   0.40,  -0.50,  99.90,  -0.10,  -0.01,
04/22 12Z,   0.40,  -3.12,  99.90,  -2.73,  -0.01,
04/22 13Z,   0.50,  -5.17,  99.90,  -4.67,  -0.01,
04/22 14Z,   0.50,  -5.88,  99.90,  -5.39,  -0.01,  (min)
04/22 15Z,   0.50,  -5.02,  99.90,  -4.53,  -0.01,
04/22 16Z,   0.50,  -3.18,  99.90,  -2.69,  -0.01,
04/22 17Z,   0.50,  -0.95,  99.90,  -0.46,  -0.01,
04/22 18Z,   0.50,   1.38,  99.90,   1.87,  -0.01,
04/22 19Z,   0.50,   3.30,  99.90,   3.79,  -0.01,
04/22 20Z,   0.50,   4.19,  99.90,   4.69,  -0.01,  (max)
04/22 21Z,   0.50,   3.87,  99.90,   4.36,  -0.01,
04/22 22Z,   0.50,   2.55,  99.90,   3.04,  -0.01,
04/22 23Z,   0.60,   0.62,  99.90,   1.21,  -0.01,
04/23 00Z,   0.60,  -1.53,  99.90,  -0.93,  -0.01,
04/23 01Z,   0.60,  -3.45,  99.90,  -2.86,  -0.01,
04/23 02Z,   0.60,  -4.44,  99.90,  -3.85,  -0.01,  (min)
04/23 03Z,   0.50,  -3.95,  99.90,  -3.46,  -0.01,
04/23 04Z,   0.50,  -2.28,  99.90,  -1.79,  -0.01,
04/23 05Z,   0.50,  -0.12,  99.90,   0.37,  -0.01,
04/23 06Z,   0.40,   2.15,  99.90,   2.54,  -0.01,
04/23 07Z,   0.50,   4.18,  99.90,   4.67,  -0.01,
04/23 08Z,   0.50,   5.34,  99.90,   5.84,  -0.01,  (max)
04/23 09Z,   0.50,   5.27,  99.90,   5.76,  -0.01,
04/23 10Z,   0.60,   4.06,  99.90,   4.65,  -0.01,
04/23 11Z,   0.60,   2.06,  99.90,   2.65,  -0.01,
04/23 12Z,   0.60,  -0.34,  99.90,   0.25,  -0.01,
04/23 13Z,   0.60,  -2.78,  99.90,  -2.19,  -0.01,
04/23 14Z,   0.70,  -4.71,  99.90,  -4.02,  -0.01,
04/23 15Z,   0.70,  -5.38,  99.90,  -4.68,  -0.01,  (min)
04/23 16Z,   0.70,  -4.63,  99.90,  -3.94,  -0.01,
04/23 17Z,   0.70,  -3.04,  99.90,  -2.34,  -0.01,
04/23 18Z,   0.70,  -1.03,  99.90,  -0.33,  -0.01,
04/23 19Z,   0.70,   1.17,  99.90,   1.86,  -0.01,
04/23 20Z,   0.70,   3.01,  99.90,   3.70,  -0.01,
04/23 21Z,   0.70,   3.89,  99.90,   4.59,  -0.01,  (max)
04/23 22Z,   0.80,   3.66,  99.90,   4.45,  -0.01,
04/23 23Z,   0.80,   2.51,  99.90,   3.30,  -0.01,
04/24 00Z,   0.80,   0.77,  99.90,   1.57,  -0.01,
04/24 01Z,   0.70,  -1.23,  99.90,  -0.54,  -0.01,
04/24 02Z,   0.70,  -3.10,  99.90,  -2.41,  -0.01,
04/24 03Z,   0.70,  -4.09,  99.90,  -3.40,  -0.01,  (min)
04/24 04Z,   0.70,  -3.72,  99.90,  -3.02,  -0.01,
04/24 05Z,   0.70,  -2.30,  99.90,  -1.61,  -0.01,
04/24 06Z,   0.70,  -0.41,  99.90,   0.28,  -0.01,
04/24 07Z,   0.80,   1.70,  99.90,   2.50,  -0.01,
04/24 08Z,   0.80,   3.67,  99.90,   4.46,  -0.01,
04/24 09Z,   0.80,   4.84,  99.90,   5.64,  -0.01,
04/24 10Z,   0.90,   4.88,  99.90,   5.77,  -0.01,  (max)
04/24 11Z,   1.00,   3.87,  99.90,   4.87,  -0.01,
04/24 12Z,   1.00,   2.13,  99.90,   3.12,  -0.01,
04/24 13Z,   1.00,  -0.06,  99.90,   0.93,  -0.01,
04/24 14Z,   1.00,  -2.39,  99.90,  -1.40,  -0.01,
04/24 15Z,   1.00,  -4.27,  99.90,  -3.28,  -0.01,
04/24 16Z,   1.00,  -4.97,  99.90,  -3.97,  -0.01,  (min)
04/24 17Z,   1.00,  -4.38,  99.90,  -3.39,  -0.01,
04/24 18Z,   1.00,  -3.02,  99.90,  -2.02,  -0.01,