EXTRA-TROPICAL  STORM  SURGE
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Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
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Gulf of Alaska
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Eastport, ME
Bar Harbor, ME
Portland, ME
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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
#Portland, ME : 10/17/2026 11:23:01 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/15 12Z,   0.00,   1.74,   1.43,  99.90,  -0.31,
10/15 13Z,   0.00,   1.66,   1.47,  99.90,  -0.19,  (min)
10/15 14Z,   0.00,   2.48,   2.23,  99.90,  -0.25,
10/15 15Z,   0.00,   4.06,   3.72,  99.90,  -0.34,
10/15 16Z,   0.00,   6.05,   6.03,  99.90,  -0.02,
10/15 17Z,   0.10,   7.87,   7.87,  99.90,  -0.10,
10/15 18Z,   0.20,   9.02,   9.08,  99.90,  -0.14,
10/15 19Z,   0.40,   9.25,   9.65,  99.90,  -0.00,  (max)
10/15 20Z,   0.50,   8.60,   9.16,  99.90,   0.06,
10/15 21Z,   0.60,   7.13,   7.79,  99.90,   0.06,
10/15 22Z,   0.60,   5.10,   5.79,  99.90,   0.09,
10/15 23Z,   0.70,   3.03,   3.84,  99.90,   0.11,
10/16 00Z,   0.80,   1.50,   2.36,  99.90,   0.06,
10/16 01Z,   0.80,   0.82,   1.58,  99.90,  -0.04,  (min)
10/16 02Z,   0.80,   1.05,   1.67,  99.90,  -0.18,
10/16 03Z,   0.80,   2.11,   2.67,  99.90,  -0.24,
10/16 04Z,   0.80,   3.80,   4.32,  99.90,  -0.28,
10/16 05Z,   0.80,   5.68,   6.15,  99.90,  -0.33,
10/16 06Z,   0.80,   7.20,   7.56,  99.90,  -0.44,
10/16 07Z,   0.90,   8.00,   8.36,  99.90,  -0.54,
10/16 08Z,   0.90,   8.00,   8.58,  99.90,  -0.32,  (max)
10/16 09Z,   1.00,   7.22,   7.85,  99.90,  -0.37,
10/16 10Z,   1.10,   5.79,   6.50,  99.90,  -0.39,
10/16 11Z,   1.10,   4.08,   4.83,  99.90,  -0.35,
10/16 12Z,   1.00,   2.67,   3.54,  99.90,  -0.13,
10/16 13Z,   1.00,   1.97,   3.01,  99.90,   0.04,  (min)
10/16 14Z,   1.00,   2.12,   3.04,  99.90,  -0.08,
10/16 15Z,   1.00,   3.04,   4.01,  99.90,  -0.03,
10/16 16Z,   1.00,   4.58,   5.46,  99.90,  -0.12,
10/16 17Z,   0.90,   6.40,   7.37,  99.90,   0.07,
10/16 18Z,   0.80,   7.96,   8.91,  99.90,   0.15,
10/16 19Z,   0.80,   8.82,   9.40,  99.90,  -0.22,
10/16 20Z,   0.80,   8.84,   9.77,  99.90,   0.13,  (max)
10/16 21Z,   0.80,   8.07,   9.24,  99.90,   0.37,
10/16 22Z,   0.70,   6.59,   7.46,  99.90,   0.17,
10/16 23Z,   0.70,   4.69,   5.68,  99.90,   0.29,
10/17 00Z,   0.60,   2.86,   3.92,  99.90,   0.46,
10/17 01Z,   0.50,   1.61,   2.68,  99.90,   0.57,
10/17 02Z,   0.40,   1.17,   2.16,  99.90,   0.59,  (min)
10/17 03Z,   0.30,   1.52,   2.39,  99.90,   0.57,
10/17 04Z,   0.30,   2.60,   3.38,  99.90,   0.48,
10/17 05Z,   0.20,   4.20,   5.03,  99.90,   0.63,
10/17 06Z,   0.10,   5.88,   6.62,  99.90,   0.64,
10/17 07Z,   0.00,   7.16,   7.67,  99.90,   0.51,
10/17 08Z,   0.00,   7.75,   8.45,  99.90,   0.70,  (max)
10/17 09Z,   0.00,   7.63,   8.30,  99.90,   0.67,
10/17 10Z,   0.00,   6.81,   7.31,  99.90,   0.50,
10/17 11Z,  -0.10,   5.44,   5.76,  99.90,   0.42,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/17 12Z,  -0.20,   3.89,  99.90,   4.08,   0.38,
10/17 13Z,  -0.20,   2.70,  99.90,   2.85,   0.35,
10/17 14Z,  -0.40,   2.21,  99.90,   2.12,   0.31,  (min)
10/17 15Z,  -0.30,   2.47,  99.90,   2.44,   0.27,
10/17 16Z,  -0.20,   3.42,  99.90,   3.45,   0.24,
10/17 17Z,  -0.20,   4.89,  99.90,   4.89,   0.20,
10/17 18Z,  -0.10,   6.56,  99.90,   6.62,   0.16,
10/17 19Z,   0.00,   7.92,  99.90,   8.04,   0.12,
10/17 20Z,   0.00,   8.59,  99.90,   8.68,   0.09,  (max)
10/17 21Z,   0.00,   8.50,  99.90,   8.55,   0.05,
10/17 22Z,   0.00,   7.68,  99.90,   7.69,   0.01,
10/17 23Z,   0.00,   6.24,  99.90,   6.22,  -0.02,
10/18 00Z,   0.10,   4.46,  99.90,   4.53,  -0.02,
10/18 01Z,   0.10,   2.82,  99.90,   2.90,  -0.02,
10/18 02Z,   0.10,   1.77,  99.90,   1.84,  -0.02,
10/18 03Z,   0.10,   1.46,  99.90,   1.53,  -0.02,  (min)
10/18 04Z,   0.10,   1.87,  99.90,   1.94,  -0.02,
10/18 05Z,   0.30,   2.93,  99.90,   3.21,  -0.02,
10/18 06Z,   0.40,   4.45,  99.90,   4.82,  -0.02,
10/18 07Z,   0.40,   5.99,  99.90,   6.37,  -0.02,
10/18 08Z,   0.50,   7.11,  99.90,   7.59,  -0.02,
10/18 09Z,   0.70,   7.60,  99.90,   8.27,  -0.02,  (max)
10/18 10Z,   0.70,   7.41,  99.90,   8.09,  -0.02,
10/18 11Z,   0.70,   6.58,  99.90,   7.26,  -0.02,
10/18 12Z,   0.70,   5.25,  99.90,   5.92,  -0.02,
10/18 13Z,   0.60,   3.80,  99.90,   4.38,  -0.02,
10/18 14Z,   0.60,   2.75,  99.90,   3.32,  -0.02,
10/18 15Z,   0.40,   2.36,  99.90,   2.73,  -0.02,  (min)
10/18 16Z,   0.20,   2.66,  99.90,   2.84,  -0.02,
10/18 17Z,   0.20,   3.60,  99.90,   3.77,  -0.02,
10/18 18Z,   0.20,   5.03,  99.90,   5.20,  -0.02,
10/18 19Z,   0.20,   6.60,  99.90,   6.78,  -0.02,
10/18 20Z,   0.20,   7.84,  99.90,   8.02,  -0.02,
10/18 21Z,   0.30,   8.42,  99.90,   8.70,  -0.02,  (max)
10/18 22Z,   0.30,   8.28,  99.90,   8.56,  -0.02,
10/18 23Z,   0.30,   7.46,  99.90,   7.74,  -0.02,
10/19 00Z,   0.30,   6.05,  99.90,   6.32,  -0.02,
10/19 01Z,   0.30,   4.33,  99.90,   4.61,  -0.02,
10/19 02Z,   0.30,   2.80,  99.90,   3.08,  -0.02,
10/19 03Z,   0.30,   1.86,  99.90,   2.13,  -0.02,
10/19 04Z,   0.30,   1.61,  99.90,   1.89,  -0.02,  (min)
10/19 05Z,   0.20,   2.05,  99.90,   2.23,  -0.02,
10/19 06Z,   0.20,   3.13,  99.90,   3.30,  -0.02,
10/19 07Z,   0.20,   4.62,  99.90,   4.80,  -0.02,
10/19 08Z,   0.20,   6.11,  99.90,   6.29,  -0.02,
10/19 09Z,   0.20,   7.16,  99.90,   7.34,  -0.02,
10/19 10Z,   0.20,   7.59,  99.90,   7.77,  -0.02,  (max)
10/19 11Z,   0.20,   7.37,  99.90,   7.55,  -0.02,
10/19 12Z,   0.20,   6.50,  99.90,   6.68,  -0.02,
10/19 13Z,   0.30,   5.15,  99.90,   5.43,  -0.02,
10/19 14Z,   0.20,   3.73,  99.90,   3.90,  -0.02,
10/19 15Z,   0.20,   2.71,  99.90,   2.89,  -0.02,
10/19 16Z,   0.30,   2.35,  99.90,   2.63,  -0.02,  (min)
10/19 17Z,   0.20,   2.66,  99.90,   2.84,  -0.02,
10/19 18Z,   0.30,   3.61,  99.90,   3.89,  -0.02,
10/19 19Z,   0.30,   5.05,  99.90,   5.33,  -0.02,
10/19 20Z,   0.30,   6.61,  99.90,   6.89,  -0.02,
10/19 21Z,   0.40,   7.82,  99.90,   8.19,  -0.02,
10/19 22Z,   0.40,   8.37,  99.90,   8.75,  -0.02,  (max)
10/19 23Z,   0.50,   8.22,  99.90,   8.70,  -0.02,
10/20 00Z,   0.50,   7.38,  99.90,   7.85,  -0.02,
10/20 01Z,   0.50,   5.93,  99.90,   6.41,  -0.02,
10/20 02Z,   0.60,   4.21,  99.90,   4.79,  -0.02,
10/20 03Z,   0.60,   2.71,  99.90,   3.29,  -0.02,
10/20 04Z,   0.60,   1.81,  99.90,   2.38,  -0.02,
10/20 05Z,   0.60,   1.60,  99.90,   2.18,  -0.02,  (min)
10/20 06Z,   0.60,   2.11,  99.90,   2.68,  -0.02,
10/20 07Z,   0.60,   3.27,  99.90,   3.84,  -0.02,
10/20 08Z,   0.60,   4.83,  99.90,   5.41,  -0.02,
10/20 09Z,   0.60,   6.34,  99.90,   6.92,  -0.02,
10/20 10Z,   0.60,   7.38,  99.90,   7.96,  -0.02,
10/20 11Z,   0.70,   7.78,  99.90,   8.46,  -0.02,  (max)
10/20 12Z,   0.80,   7.49,  99.90,   8.26,  -0.02,
10/20 13Z,   0.90,   6.52,  99.90,   7.39,  -0.02,
10/20 14Z,   1.00,   5.06,  99.90,   6.03,  -0.02,
10/20 15Z,   1.10,   3.57,  99.90,   4.64,  -0.02,
10/20 16Z,   1.20,   2.52,  99.90,   3.70,  -0.02,
10/20 17Z,   1.30,   2.16,  99.90,   3.43,  -0.02,  (min)
10/20 18Z,   1.20,   2.50,  99.90,   3.67,  -0.02,
10/20 19Z,   1.10,   3.52,  99.90,   4.60,  -0.02,
10/20 20Z,   1.10,   5.06,  99.90,   6.14,  -0.02,
10/20 21Z,   1.00,   6.69,  99.90,   7.67,  -0.02,
10/20 22Z,   1.00,   7.92,  99.90,   8.90,  -0.02,
10/20 23Z,   1.00,   8.48,  99.90,   9.45,  -0.02,  (max)
10/21 00Z,   1.10,   8.29,  99.90,   9.36,  -0.02,