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 : 08/19/2026 14:22:02 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/17 18Z,   0.80,   2.09,   2.73,  99.90,  -0.16,  (min)
08/17 19Z,   0.80,   3.75,   4.42,  99.90,  -0.13,
08/17 20Z,   0.80,   5.08,   5.70,  99.90,  -0.18,
08/17 21Z,   0.80,   6.18,   6.56,  99.90,  -0.42,
08/17 22Z,   0.80,   6.71,   7.15,  99.90,  -0.36,  (max)
08/17 23Z,   0.80,   6.33,   6.69,  99.90,  -0.44,
08/18 00Z,   0.70,   5.43,   5.59,  99.90,  -0.54,
08/18 01Z,   0.70,   4.39,   4.46,  99.90,  -0.63,
08/18 02Z,   0.70,   3.31,   3.35,  99.90,  -0.66,
08/18 03Z,   0.70,   2.21,   2.28,  99.90,  -0.63,
08/18 04Z,   0.70,   1.16,   1.29,  99.90,  -0.57,
08/18 05Z,   0.70,   0.75,   0.78,  99.90,  -0.67,  (min)
08/18 06Z,   0.70,   1.59,   2.41,  99.90,   0.12,
08/18 07Z,   0.70,   3.11,   4.07,  99.90,   0.26,
08/18 08Z,   0.70,   4.39,   5.14,  99.90,   0.05,
08/18 09Z,   0.70,   5.45,  99.90,  99.90,  99.90,
08/18 10Z,   0.70,   6.20,  99.90,  99.90,  99.90,
08/18 11Z,   0.70,   6.13,  99.90,  99.90,  99.90,
08/18 12Z,   0.70,   5.32,  99.90,  99.90,  99.90,
08/18 13Z,   0.70,   4.25,  99.90,  99.90,  99.90,
08/18 14Z,   0.70,   3.14,  99.90,  99.90,  99.90,  (max)
08/18 15Z,   0.70,   2.09,   1.65,  99.90,  -1.14,
08/18 16Z,   0.70,   1.11,   1.34,  99.90,  -0.47,
08/18 17Z,   0.70,   0.52,   0.64,  99.90,  -0.58,  (min)
08/18 18Z,   0.60,   1.05,   1.69,  99.90,   0.04,
08/18 19Z,   0.60,   2.60,   3.55,  99.90,   0.35,
08/18 20Z,   0.60,   4.16,   4.68,  99.90,  -0.08,  (max)
08/18 21Z,   0.70,   5.35,   2.88,  99.90,  -3.17,  (min)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/18 22Z,   0.70,   6.33,  99.90,   4.10,  -2.93,
08/18 23Z,   0.70,   6.69,  99.90,   4.70,  -2.69,  (max)
08/19 00Z,   0.70,   6.18,  99.90,   4.43,  -2.45,
08/19 01Z,   0.70,   5.22,  99.90,   3.71,  -2.20,
08/19 02Z,   0.70,   4.16,  99.90,   2.90,  -1.96,
08/19 03Z,   0.70,   3.09,  99.90,   2.07,  -1.72,
08/19 04Z,   0.70,   2.04,  99.90,   1.27,  -1.48,
08/19 05Z,   0.70,   1.10,  99.90,   0.57,  -1.23,  (min)
08/19 06Z,   0.80,   0.89,  99.90,   0.70,  -0.99,
08/19 07Z,   0.80,   1.85,  99.90,   1.90,  -0.75,
08/19 08Z,   0.80,   3.26,  99.90,   3.55,  -0.51,
08/19 09Z,   0.80,   4.38,  99.90,   4.92,  -0.26,
08/19 10Z,   0.80,   5.36,  99.90,   5.89,  -0.26,
08/19 11Z,   0.70,   6.01,  99.90,   6.45,  -0.26,  (max)
08/19 12Z,   0.70,   5.83,  99.90,   6.26,  -0.26,
08/19 13Z,   0.70,   4.95,  99.90,   5.39,  -0.26,
08/19 14Z,   0.70,   3.85,  99.90,   4.29,  -0.26,
08/19 15Z,   0.70,   2.76,  99.90,   3.19,  -0.26,
08/19 16Z,   0.70,   1.78,  99.90,   2.22,  -0.26,
08/19 17Z,   0.70,   0.95,  99.90,   1.39,  -0.26,
08/19 18Z,   0.70,   0.64,  99.90,   1.07,  -0.26,  (min)
08/19 19Z,   0.70,   1.44,  99.90,   1.88,  -0.26,
08/19 20Z,   0.70,   3.04,  99.90,   3.48,  -0.26,
08/19 21Z,   0.70,   4.46,  99.90,   4.89,  -0.26,
08/19 22Z,   0.70,   5.54,  99.90,   5.97,  -0.26,
08/19 23Z,   0.70,   6.42,  99.90,   6.85,  -0.26,
08/20 00Z,   0.70,   6.64,  99.90,   7.07,  -0.26,  (max)
08/20 01Z,   0.70,   6.03,  99.90,   6.46,  -0.26,
08/20 02Z,   0.70,   5.04,  99.90,   5.47,  -0.26,
08/20 03Z,   0.70,   3.97,  99.90,   4.41,  -0.26,
08/20 04Z,   0.70,   2.93,  99.90,   3.37,  -0.26,
08/20 05Z,   0.70,   1.93,  99.90,   2.36,  -0.26,
08/20 06Z,   0.70,   1.08,  99.90,   1.51,  -0.26,
08/20 07Z,   0.70,   1.03,  99.90,   1.47,  -0.26,  (min)
08/20 08Z,   0.70,   2.04,  99.90,   2.48,  -0.26,
08/20 09Z,   0.70,   3.31,  99.90,   3.75,  -0.26,
08/20 10Z,   0.70,   4.32,  99.90,   4.75,  -0.26,
08/20 11Z,   0.60,   5.27,  99.90,   5.60,  -0.26,
08/20 12Z,   0.60,   5.86,  99.90,   6.20,  -0.26,  (max)
08/20 13Z,   0.60,   5.58,  99.90,   5.92,  -0.26,
08/20 14Z,   0.60,   4.67,  99.90,   5.00,  -0.26,
08/20 15Z,   0.60,   3.55,  99.90,   3.89,  -0.26,
08/20 16Z,   0.60,   2.49,  99.90,   2.82,  -0.26,
08/20 17Z,   0.60,   1.59,  99.90,   1.93,  -0.26,
08/20 18Z,   0.60,   0.90,  99.90,   1.23,  -0.26,
08/20 19Z,   0.60,   0.79,  99.90,   1.13,  -0.26,  (min)
08/20 20Z,   0.50,   1.79,  99.90,   2.03,  -0.26,
08/20 21Z,   0.50,   3.37,  99.90,   3.60,  -0.26,
08/20 22Z,   0.50,   4.64,  99.90,   4.88,  -0.26,
08/20 23Z,   0.50,   5.66,  99.90,   5.89,  -0.26,
08/21 00Z,   0.60,   6.48,  99.90,   6.81,  -0.26,
08/21 01Z,   0.60,   6.58,  99.90,   6.92,  -0.26,  (max)
08/21 02Z,   0.60,   5.91,  99.90,   6.24,  -0.26,
08/21 03Z,   0.60,   4.91,  99.90,   5.24,  -0.26,
08/21 04Z,   0.60,   3.85,  99.90,   4.19,  -0.26,
08/21 05Z,   0.60,   2.84,  99.90,   3.17,  -0.26,
08/21 06Z,   0.60,   1.85,  99.90,   2.19,  -0.26,
08/21 07Z,   0.60,   1.06,  99.90,   1.40,  -0.26,  (min)
08/21 08Z,   0.60,   1.14,  99.90,   1.47,  -0.26,
08/21 09Z,   0.60,   2.16,  99.90,   2.50,  -0.26,
08/21 10Z,   0.60,   3.31,  99.90,   3.64,  -0.26,
08/21 11Z,   0.50,   4.25,  99.90,   4.49,  -0.26,
08/21 12Z,   0.50,   5.22,  99.90,   5.45,  -0.26,
08/21 13Z,   0.50,   5.76,  99.90,   6.00,  -0.26,  (max)
08/21 14Z,   0.50,   5.41,  99.90,   5.65,  -0.26,
08/21 15Z,   0.50,   4.47,  99.90,   4.71,  -0.26,
08/21 16Z,   0.50,   3.36,  99.90,   3.60,  -0.26,
08/21 17Z,   0.50,   2.33,  99.90,   2.57,  -0.26,
08/21 18Z,   0.50,   1.50,  99.90,   1.73,  -0.26,
08/21 19Z,   0.50,   0.89,  99.90,   1.12,  -0.26,  (min)
08/21 20Z,   0.50,   0.95,  99.90,   1.18,  -0.26,
08/21 21Z,   0.60,   2.07,  99.90,   2.41,  -0.26,
08/21 22Z,   0.60,   3.59,  99.90,   3.93,  -0.26,
08/21 23Z,   0.60,   4.77,  99.90,   5.10,  -0.26,
08/22 00Z,   0.60,   5.76,  99.90,   6.10,  -0.26,
08/22 01Z,   0.60,   6.54,  99.90,   6.88,  -0.26,
08/22 02Z,   0.60,   6.56,  99.90,   6.89,  -0.26,  (max)
08/22 03Z,   0.60,   5.84,  99.90,   6.17,  -0.26,
08/22 04Z,   0.60,   4.84,  99.90,   5.17,  -0.26,
08/22 05Z,   0.70,   3.79,  99.90,   4.23,  -0.26,
08/22 06Z,   0.70,   2.78,  99.90,   3.22,  -0.26,
08/22 07Z,   0.70,   1.78,  99.90,   2.22,  -0.26,
08/22 08Z,   0.70,   1.03,  99.90,   1.47,  -0.26,  (min)
08/22 09Z,   0.70,   1.20,  99.90,   1.64,  -0.26,
08/22 10Z,   0.70,   2.23,  99.90,   2.66,  -0.26,
08/22 11Z,   0.70,   3.29,  99.90,   3.72,  -0.26,
08/22 12Z,   0.70,   4.24,  99.90,   4.68,  -0.26,
08/22 13Z,   0.70,   5.25,  99.90,   5.69,  -0.26,
08/22 14Z,   0.70,   5.74,  99.90,   6.17,  -0.26,  (max)
08/22 15Z,   0.70,   5.32,  99.90,   5.75,  -0.26,
08/22 16Z,   0.70,   4.35,  99.90,   4.79,  -0.26,
08/22 17Z,   0.70,   3.25,  99.90,   3.69,  -0.26,
08/22 18Z,   0.70,   2.25,  99.90,   2.68,  -0.26,
08/22 19Z,   0.70,   1.43,  99.90,   1.87,  -0.26,
08/22 20Z,   0.70,   0.87,  99.90,   1.31,  -0.26,  (min)
08/22 21Z,   0.70,   1.07,  99.90,   1.50,  -0.26,
08/22 22Z,   0.70,   2.29,  99.90,   2.72,  -0.26,
08/22 23Z,   0.70,   3.76,  99.90,   4.19,  -0.26,
08/23 00Z,   0.70,   4.89,  99.90,   5.32,  -0.26,
08/23 01Z,   0.70,   5.91,  99.90,   6.35,  -0.26,
08/23 02Z,   0.70,   6.65,  99.90,   7.09,  -0.26,  (max)
08/23 03Z,   0.70,   6.57,  99.90,   7.00,  -0.26,
08/23 04Z,   0.70,   5.80,  99.90,   6.24,  -0.26,
08/23 05Z,   0.70,   4.80,  99.90,   5.23,  -0.26,
08/23 06Z,   0.70,   3.75,  99.90,   4.19,  -0.26,