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
#Philadelphia, PA : 10/09/2026 08:21:08 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/07 12Z,   0.20,   2.49,   3.00,  99.90,   0.31,
10/07 13Z,   0.20,   3.83,   4.47,  99.90,   0.44,
10/07 14Z,   0.20,   5.20,   5.70,  99.90,   0.30,
10/07 15Z,   0.20,   6.26,   6.50,  99.90,   0.04,
10/07 16Z,   0.20,   6.40,   6.75,  99.90,   0.15,  (max)
10/07 17Z,   0.20,   5.82,   5.99,  99.90,  -0.03,
10/07 18Z,   0.40,   4.97,   4.82,  99.90,  -0.55,
10/07 19Z,   0.40,   3.99,   3.73,  99.90,  -0.66,
10/07 20Z,   0.40,   2.87,   2.71,  99.90,  -0.56,
10/07 21Z,   0.40,   1.62,   1.70,  99.90,  -0.32,
10/07 22Z,   0.40,   0.72,   0.85,  99.90,  -0.27,  (min)
10/07 23Z,   0.40,   1.02,   1.03,  99.90,  -0.39,
10/08 00Z,   0.50,   2.36,   3.23,  99.90,   0.37,
10/08 01Z,   0.50,   3.84,   4.81,  99.90,   0.47,
10/08 02Z,   0.50,   5.22,   6.10,  99.90,   0.38,
10/08 03Z,   0.50,   6.47,   7.04,  99.90,   0.07,
10/08 04Z,   0.50,   6.98,   7.66,  99.90,   0.18,  (max)
10/08 05Z,   0.50,   6.64,   7.33,  99.90,   0.19,
10/08 06Z,   0.60,   5.91,   6.17,  99.90,  -0.34,
10/08 07Z,   0.60,   5.01,   4.97,  99.90,  -0.64,
10/08 08Z,   0.60,   3.91,   3.90,  99.90,  -0.61,
10/08 09Z,   0.60,   2.52,   2.79,  99.90,  -0.33,
10/08 10Z,   0.60,   1.06,   1.77,  99.90,   0.11,
10/08 11Z,   0.60,   0.47,   0.95,  99.90,  -0.12,  (min)
10/08 12Z,   0.60,   1.23,   1.36,  99.90,  -0.47,
10/08 13Z,   0.60,   2.64,   3.46,  99.90,   0.22,
10/08 14Z,   0.60,   4.11,   4.94,  99.90,   0.23,
10/08 15Z,   0.60,   5.61,   6.03,  99.90,  -0.18,
10/08 16Z,   0.60,   6.63,   6.72,  99.90,  -0.51,
10/08 17Z,   0.50,   6.66,   6.83,  99.90,  -0.33,  (max)
10/08 18Z,   0.60,   6.00,   5.93,  99.90,  -0.67,
10/08 19Z,   0.50,   5.10,   4.75,  99.90,  -0.85,
10/08 20Z,   0.50,   4.05,   3.62,  99.90,  -0.93,
10/08 21Z,   0.50,   2.83,   2.55,  99.90,  -0.78,
10/08 22Z,   0.50,   1.45,   1.47,  99.90,  -0.48,
10/08 23Z,   0.40,   0.57,   0.52,  99.90,  -0.45,
10/09 00Z,   0.40,   0.99,   0.28,  99.90,  -1.11,  (min)
10/09 01Z,   0.40,   2.39,   2.65,  99.90,  -0.14,
10/09 02Z,   0.40,   3.90,   4.34,  99.90,   0.04,
10/09 03Z,   0.40,   5.37,   5.72,  99.90,  -0.05,
10/09 04Z,   0.40,   6.61,   6.68,  99.90,  -0.33,
10/09 05Z,   0.40,   6.99,   7.25,  99.90,  -0.14,  (max)
10/09 06Z,   0.40,   6.52,   6.66,  99.90,  -0.26,
10/09 07Z,   0.40,   5.71,   5.45,  99.90,  -0.66,
10/09 08Z,   0.40,   4.74,   4.30,  99.90,  -0.84,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/09 09Z,   0.40,   3.57,  99.90,   3.18,  -0.79,
10/09 10Z,   0.40,   2.13,  99.90,   1.78,  -0.75,
10/09 11Z,   0.40,   0.77,  99.90,   0.46,  -0.71,
10/09 12Z,   0.40,   0.45,  99.90,   0.18,  -0.66,  (min)
10/09 13Z,   0.40,   1.47,  99.90,   1.25,  -0.62,
10/09 14Z,   0.40,   3.01,  99.90,   2.84,  -0.57,
10/09 15Z,   0.40,   4.57,  99.90,   4.44,  -0.53,
10/09 16Z,   0.40,   6.09,  99.90,   6.00,  -0.49,
10/09 17Z,   0.40,   6.95,  99.90,   6.91,  -0.44,  (max)
10/09 18Z,   0.40,   6.79,  99.90,   6.79,  -0.40,
10/09 19Z,   0.50,   6.03,  99.90,   6.17,  -0.36,
10/09 20Z,   0.40,   5.06,  99.90,   5.15,  -0.31,
10/09 21Z,   0.40,   3.95,  99.90,   4.04,  -0.31,
10/09 22Z,   0.40,   2.66,  99.90,   2.74,  -0.31,
10/09 23Z,   0.40,   1.25,  99.90,   1.33,  -0.31,
10/10 00Z,   0.40,   0.48,  99.90,   0.57,  -0.31,  (min)
10/10 01Z,   0.50,   1.10,  99.90,   1.29,  -0.31,
10/10 02Z,   0.50,   2.57,  99.90,   2.76,  -0.31,
10/10 03Z,   0.50,   4.10,  99.90,   4.29,  -0.31,
10/10 04Z,   0.50,   5.58,  99.90,   5.77,  -0.31,
10/10 05Z,   0.40,   6.71,  99.90,   6.79,  -0.31,
10/10 06Z,   0.40,   6.88,  99.90,   6.97,  -0.31,  (max)
10/10 07Z,   0.40,   6.25,  99.90,   6.34,  -0.31,
10/10 08Z,   0.40,   5.35,  99.90,   5.44,  -0.31,
10/10 09Z,   0.40,   4.32,  99.90,   4.41,  -0.31,
10/10 10Z,   0.40,   3.13,  99.90,   3.22,  -0.31,
10/10 11Z,   0.40,   1.73,  99.90,   1.82,  -0.31,
10/10 12Z,   0.40,   0.58,  99.90,   0.66,  -0.31,  (min)
10/10 13Z,   0.40,   0.63,  99.90,   0.72,  -0.31,
10/10 14Z,   0.40,   1.93,  99.90,   2.01,  -0.31,
10/10 15Z,   0.30,   3.56,  99.90,   3.54,  -0.31,
10/10 16Z,   0.30,   5.13,  99.90,   5.12,  -0.31,
10/10 17Z,   0.30,   6.53,  99.90,   6.52,  -0.31,
10/10 18Z,   0.30,   7.14,  99.90,   7.13,  -0.31,  (max)
10/10 19Z,   0.30,   6.75,  99.90,   6.74,  -0.31,
10/10 20Z,   0.30,   5.87,  99.90,   5.86,  -0.31,
10/10 21Z,   0.30,   4.85,  99.90,   4.84,  -0.31,
10/10 22Z,   0.30,   3.71,  99.90,   3.70,  -0.31,
10/10 23Z,   0.30,   2.39,  99.90,   2.38,  -0.31,
10/11 00Z,   0.40,   1.04,  99.90,   1.13,  -0.31,
10/11 01Z,   0.40,   0.51,  99.90,   0.60,  -0.31,  (min)
10/11 02Z,   0.40,   1.36,  99.90,   1.45,  -0.31,
10/11 03Z,   0.40,   2.89,  99.90,   2.98,  -0.31,
10/11 04Z,   0.40,   4.39,  99.90,   4.48,  -0.31,
10/11 05Z,   0.50,   5.80,  99.90,   5.99,  -0.31,
10/11 06Z,   0.50,   6.71,  99.90,   6.90,  -0.31,  (max)
10/11 07Z,   0.50,   6.63,  99.90,   6.82,  -0.31,
10/11 08Z,   0.50,   5.85,  99.90,   6.04,  -0.31,
10/11 09Z,   0.50,   4.87,  99.90,   5.06,  -0.31,
10/11 10Z,   0.50,   3.82,  99.90,   4.01,  -0.31,
10/11 11Z,   0.50,   2.65,  99.90,   2.84,  -0.31,
10/11 12Z,   0.50,   1.37,  99.90,   1.56,  -0.31,
10/11 13Z,   0.50,   0.54,  99.90,   0.73,  -0.31,  (min)
10/11 14Z,   0.60,   1.02,  99.90,   1.30,  -0.31,
10/11 15Z,   0.60,   2.56,  99.90,   2.84,  -0.31,
10/11 16Z,   0.60,   4.20,  99.90,   4.49,  -0.31,
10/11 17Z,   0.60,   5.68,  99.90,   5.97,  -0.31,
10/11 18Z,   0.70,   6.86,  99.90,   7.25,  -0.31,
10/11 19Z,   0.70,   7.16,  99.90,   7.55,  -0.31,  (max)
10/11 20Z,   0.80,   6.54,  99.90,   7.03,  -0.31,
10/11 21Z,   0.80,   5.56,  99.90,   6.05,  -0.31,
10/11 22Z,   0.90,   4.51,  99.90,   5.10,  -0.31,
10/11 23Z,   1.00,   3.37,  99.90,   4.06,  -0.31,
10/12 00Z,   1.10,   2.07,  99.90,   2.86,  -0.31,
10/12 01Z,   1.10,   0.88,  99.90,   1.67,  -0.31,
10/12 02Z,   1.20,   0.66,  99.90,   1.55,  -0.31,  (min)
10/12 03Z,   1.20,   1.75,  99.90,   2.64,  -0.31,
10/12 04Z,   1.30,   3.30,  99.90,   4.29,  -0.31,
10/12 05Z,   1.20,   4.70,  99.90,   5.59,  -0.31,
10/12 06Z,   1.20,   5.96,  99.90,   6.85,  -0.31,
10/12 07Z,   1.10,   6.61,  99.90,   7.40,  -0.31,  (max)
10/12 08Z,   1.00,   6.27,  99.90,   6.96,  -0.31,
10/12 09Z,   0.90,   5.36,  99.90,   5.94,  -0.31,
10/12 10Z,   0.90,   4.32,  99.90,   4.91,  -0.31,
10/12 11Z,   0.90,   3.28,  99.90,   3.86,  -0.31,
10/12 12Z,   0.80,   2.19,  99.90,   2.68,  -0.31,
10/12 13Z,   0.80,   1.11,  99.90,   1.60,  -0.31,
10/12 14Z,   0.80,   0.68,  99.90,   1.17,  -0.31,  (min)
10/12 15Z,   0.80,   1.57,  99.90,   2.06,  -0.31,
10/12 16Z,   0.80,   3.27,  99.90,   3.76,  -0.31,
10/12 17Z,   0.80,   4.84,  99.90,   5.33,  -0.31,
10/12 18Z,   0.80,   6.14,  99.90,   6.63,  -0.31,
10/12 19Z,   0.80,   7.04,  99.90,   7.52,  -0.31,  (max)
10/12 20Z,   0.80,   7.00,  99.90,   7.49,  -0.31,
10/12 21Z,   0.80,   6.19,  99.90,   6.68,  -0.31,
10/12 22Z,   0.80,   5.14,  99.90,   5.63,  -0.31,
10/12 23Z,   0.80,   4.08,  99.90,   4.56,  -0.31,
10/13 00Z,   0.80,   2.97,  99.90,   3.46,  -0.31,