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 : 08/15/2026 03:21:55 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/13 12Z,   0.80,   1.64,   2.21,  99.90,  -0.23,
08/13 13Z,   0.80,   0.45,   1.21,  99.90,  -0.04,
08/13 14Z,   0.80,   0.59,   0.61,  99.90,  -0.78,  (min)
08/13 15Z,   0.80,   1.93,   2.53,  99.90,  -0.20,
08/13 16Z,   0.70,   3.48,   4.36,  99.90,   0.18,
08/13 17Z,   0.70,   4.91,   5.64,  99.90,   0.03,
08/13 18Z,   0.70,   6.06,   6.50,  99.90,  -0.26,
08/13 19Z,   0.70,   6.39,   6.94,  99.90,  -0.15,  (max)
08/13 20Z,   0.70,   5.85,   6.23,  99.90,  -0.32,
08/13 21Z,   0.70,   4.97,   4.97,  99.90,  -0.70,
08/13 22Z,   0.70,   4.01,   3.82,  99.90,  -0.89,
08/13 23Z,   0.70,   2.95,   2.72,  99.90,  -0.93,
08/14 00Z,   0.70,   1.74,   1.61,  99.90,  -0.83,
08/14 01Z,   0.70,   0.67,   0.59,  99.90,  -0.78,
08/14 02Z,   0.70,   0.63,   0.13,  99.90,  -1.20,  (min)
08/14 03Z,   0.70,   1.96,   2.68,  99.90,   0.02,
08/14 04Z,   0.70,   3.77,   4.60,  99.90,   0.13,
08/14 05Z,   0.70,   5.30,   6.05,  99.90,   0.05,
08/14 06Z,   0.60,   6.56,   7.11,  99.90,  -0.05,
08/14 07Z,   0.60,   7.18,   7.90,  99.90,   0.12,  (max)
08/14 08Z,   0.60,   6.88,   7.63,  99.90,   0.15,
08/14 09Z,   0.60,   6.07,   6.43,  99.90,  -0.24,
08/14 10Z,   0.60,   5.13,   5.14,  99.90,  -0.59,
08/14 11Z,   0.60,   4.06,   3.99,  99.90,  -0.67,
08/14 12Z,   0.60,   2.74,   2.83,  99.90,  -0.51,
08/14 13Z,   0.60,   1.24,   1.71,  99.90,  -0.13,
08/14 14Z,   0.60,   0.30,   0.73,  99.90,  -0.17,
08/14 15Z,   0.60,   0.77,   0.51,  99.90,  -0.86,  (min)
08/14 16Z,   0.60,   2.29,   3.06,  99.90,   0.17,
08/14 17Z,   0.60,   3.87,   4.73,  99.90,   0.26,
08/14 18Z,   0.60,   5.28,   5.96,  99.90,   0.08,
08/14 19Z,   0.60,   6.33,   6.75,  99.90,  -0.18,
08/14 20Z,   0.60,   6.49,   7.16,  99.90,   0.07,  (max)
08/14 21Z,   0.60,   5.84,   6.41,  99.90,  -0.03,
08/14 22Z,   0.60,   4.93,   5.13,  99.90,  -0.40,
08/14 23Z,   0.60,   3.93,   3.96,  99.90,  -0.57,
08/15 00Z,   0.60,   2.83,   2.85,  99.90,  -0.58,
08/15 01Z,   0.70,   1.59,   1.72,  99.90,  -0.57,
08/15 02Z,   0.70,   0.60,   0.75,  99.90,  -0.55,
08/15 03Z,   0.70,   0.78,   0.64,  99.90,  -0.84,  (min)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/15 04Z,   0.70,   2.25,  99.90,   2.16,  -0.79,
08/15 05Z,   0.70,   3.99,  99.90,   3.94,  -0.74,
08/15 06Z,   0.70,   5.42,  99.90,   5.43,  -0.69,
08/15 07Z,   0.70,   6.57,  99.90,   6.62,  -0.64,
08/15 08Z,   0.70,   7.02,  99.90,   7.12,  -0.59,  (max)
08/15 09Z,   0.70,   6.56,  99.90,   6.72,  -0.54,
08/15 10Z,   0.70,   5.68,  99.90,   5.88,  -0.49,
08/15 11Z,   0.70,   4.68,  99.90,   4.94,  -0.44,
08/15 12Z,   0.70,   3.57,  99.90,   3.87,  -0.39,
08/15 13Z,   0.70,   2.25,  99.90,   2.61,  -0.34,
08/15 14Z,   0.60,   0.89,  99.90,   1.19,  -0.29,
08/15 15Z,   0.60,   0.28,  99.90,   0.63,  -0.25,  (min)
08/15 16Z,   0.60,   1.11,  99.90,   1.47,  -0.25,
08/15 17Z,   0.60,   2.76,  99.90,   3.11,  -0.25,
08/15 18Z,   0.60,   4.30,  99.90,   4.65,  -0.25,
08/15 19Z,   0.60,   5.64,  99.90,   5.99,  -0.25,
08/15 20Z,   0.60,   6.53,  99.90,   6.89,  -0.25,  (max)
08/15 21Z,   0.60,   6.51,  99.90,   6.86,  -0.25,
08/15 22Z,   0.60,   5.77,  99.90,   6.12,  -0.25,
08/15 23Z,   0.60,   4.81,  99.90,   5.17,  -0.25,
08/16 00Z,   0.60,   3.78,  99.90,   4.13,  -0.25,
08/16 01Z,   0.70,   2.64,  99.90,   3.10,  -0.25,
08/16 02Z,   0.70,   1.42,  99.90,   1.88,  -0.25,
08/16 03Z,   0.70,   0.59,  99.90,   1.05,  -0.25,  (min)
08/16 04Z,   0.70,   1.02,  99.90,   1.47,  -0.25,
08/16 05Z,   0.70,   2.57,  99.90,   3.02,  -0.25,
08/16 06Z,   0.70,   4.19,  99.90,   4.64,  -0.25,
08/16 07Z,   0.80,   5.49,  99.90,   6.05,  -0.25,
08/16 08Z,   0.80,   6.50,  99.90,   7.06,  -0.25,
08/16 09Z,   0.80,   6.76,  99.90,   7.32,  -0.25,  (max)
08/16 10Z,   0.80,   6.17,  99.90,   6.72,  -0.25,
08/16 11Z,   0.80,   5.21,  99.90,   5.76,  -0.25,
08/16 12Z,   0.80,   4.16,  99.90,   4.72,  -0.25,
08/16 13Z,   0.80,   3.03,  99.90,   3.58,  -0.25,
08/16 14Z,   0.70,   1.78,  99.90,   2.23,  -0.25,
08/16 15Z,   0.70,   0.63,  99.90,   1.08,  -0.25,
08/16 16Z,   0.70,   0.41,  99.90,   0.87,  -0.25,  (min)
08/16 17Z,   0.70,   1.57,  99.90,   2.03,  -0.25,
08/16 18Z,   0.70,   3.26,  99.90,   3.72,  -0.25,
08/16 19Z,   0.80,   4.72,  99.90,   5.27,  -0.25,
08/16 20Z,   0.80,   5.95,  99.90,   6.50,  -0.25,
08/16 21Z,   0.80,   6.66,  99.90,   7.22,  -0.25,  (max)
08/16 22Z,   0.80,   6.45,  99.90,   7.00,  -0.25,
08/16 23Z,   0.90,   5.62,  99.90,   6.27,  -0.25,
08/17 00Z,   0.90,   4.62,  99.90,   5.27,  -0.25,
08/17 01Z,   0.90,   3.56,  99.90,   4.21,  -0.25,
08/17 02Z,   0.90,   2.42,  99.90,   3.08,  -0.25,
08/17 03Z,   0.90,   1.27,  99.90,   1.93,  -0.25,
08/17 04Z,   1.00,   0.65,  99.90,   1.40,  -0.25,  (min)
08/17 05Z,   1.00,   1.30,  99.90,   2.06,  -0.25,
08/17 06Z,   1.00,   2.87,  99.90,   3.62,  -0.25,
08/17 07Z,   1.00,   4.33,  99.90,   5.08,  -0.25,
08/17 08Z,   1.00,   5.50,  99.90,   6.26,  -0.25,
08/17 09Z,   1.00,   6.37,  99.90,   7.13,  -0.25,
08/17 10Z,   1.00,   6.45,  99.90,   7.21,  -0.25,  (max)
08/17 11Z,   0.90,   5.74,  99.90,   6.39,  -0.25,
08/17 12Z,   0.90,   4.71,  99.90,   5.37,  -0.25,
08/17 13Z,   0.90,   3.63,  99.90,   4.28,  -0.25,
08/17 14Z,   0.80,   2.51,  99.90,   3.07,  -0.25,
08/17 15Z,   0.80,   1.38,  99.90,   1.94,  -0.25,
08/17 16Z,   0.80,   0.51,  99.90,   1.06,  -0.25,  (min)
08/17 17Z,   0.70,   0.69,  99.90,   1.14,  -0.25,
08/17 18Z,   0.70,   2.09,  99.90,   2.55,  -0.25,
08/17 19Z,   0.60,   3.75,  99.90,   4.11,  -0.25,
08/17 20Z,   0.60,   5.08,  99.90,   5.44,  -0.25,
08/17 21Z,   0.60,   6.18,  99.90,   6.53,  -0.25,
08/17 22Z,   0.50,   6.71,  99.90,   6.96,  -0.25,  (max)
08/17 23Z,   0.50,   6.33,  99.90,   6.59,  -0.25,
08/18 00Z,   0.50,   5.43,  99.90,   5.68,  -0.25,
08/18 01Z,   0.50,   4.39,  99.90,   4.64,  -0.25,
08/18 02Z,   0.50,   3.31,  99.90,   3.57,  -0.25,
08/18 03Z,   0.50,   2.21,  99.90,   2.47,  -0.25,
08/18 04Z,   0.50,   1.16,  99.90,   1.42,  -0.25,
08/18 05Z,   0.50,   0.75,  99.90,   1.01,  -0.25,  (min)
08/18 06Z,   0.50,   1.59,  99.90,   1.85,  -0.25,
08/18 07Z,   0.50,   3.11,  99.90,   3.36,  -0.25,
08/18 08Z,   0.50,   4.39,  99.90,   4.65,  -0.25,
08/18 09Z,   0.50,   5.45,  99.90,   5.70,  -0.25,
08/18 10Z,   0.50,   6.20,  99.90,   6.45,  -0.25,
08/18 11Z,   0.60,   6.13,  99.90,   6.48,  -0.25,  (max)
08/18 12Z,   0.60,   5.32,  99.90,   5.67,  -0.25,
08/18 13Z,   0.60,   4.25,  99.90,   4.60,  -0.25,
08/18 14Z,   0.60,   3.14,  99.90,   3.50,  -0.25,
08/18 15Z,   0.60,   2.09,  99.90,   2.44,  -0.25,
08/18 16Z,   0.60,   1.11,  99.90,   1.46,  -0.25,
08/18 17Z,   0.60,   0.52,  99.90,   0.88,  -0.25,  (min)
08/18 18Z,   0.60,   1.05,  99.90,   1.41,  -0.25,
08/18 19Z,  99.90,   2.60,  99.90,  99.90,  -0.25,
08/18 20Z,  99.90,   4.16,  99.90,  99.90,  -0.25,
08/18 21Z,  99.90,   5.35,  99.90,  99.90,  -0.25,
08/18 22Z,  99.90,   6.33,  99.90,  99.90,  -0.25,
08/18 23Z,  99.90,   6.69,  99.90,  99.90,  -0.25,
08/19 00Z,  99.90,   6.18,  99.90,  99.90,  -0.25,