EXTRA-TROPICAL  STORM  SURGE
N A T I O N A L    O C E A N I C    A N D    A T M O S P H E R I C    A D M I N I S T R A T I O N

  • This website is considered EXPERIMENTAL, is supported on an 8x5 basis, and has no guarantee of availability.
  • The data located HERE are considered OPERATIONAL and are supported on a 24x7 basis.
About
Manual
Disclaimer
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 : 09/08/2026 09:22:01 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
09/06 18Z,   1.00,   2.49,   2.79,  99.90,  -0.70,
09/06 19Z,   1.00,   1.72,   1.77,  99.90,  -0.95,
09/06 20Z,   1.00,   1.07,   1.05,  99.90,  -1.02,  (min)
09/06 21Z,   1.00,   1.09,   1.95,  99.90,  -0.14,
09/06 22Z,   1.00,   2.30,   3.98,  99.90,   0.68,
09/06 23Z,   1.00,   4.02,   5.47,  99.90,   0.45,
09/07 00Z,   1.10,   5.34,   6.71,  99.90,   0.27,
09/07 01Z,   1.10,   6.28,   7.73,  99.90,   0.35,
09/07 02Z,   1.10,   6.88,   8.38,  99.90,   0.40,  0.21 ft above HAT  (max)
09/07 03Z,   1.10,   6.74,   8.25,  99.90,   0.41,  0.08 ft above HAT
09/07 04Z,   1.10,   6.02,   7.35,  99.90,   0.23,
09/07 05Z,   1.10,   5.20,   6.12,  99.90,  -0.18,
09/07 06Z,   1.20,   4.34,   4.96,  99.90,  -0.58,
09/07 07Z,   1.20,   3.37,   3.85,  99.90,  -0.72,
09/07 08Z,   1.20,   2.20,   2.79,  99.90,  -0.61,
09/07 09Z,   1.20,   1.18,   1.90,  99.90,  -0.48,
09/07 10Z,   1.20,   1.18,   1.64,  99.90,  -0.74,  (min)
09/07 11Z,   1.20,   2.26,   3.33,  99.90,  -0.13,
09/07 12Z,   1.10,   3.51,   4.85,  99.90,   0.24,
09/07 13Z,   1.10,   4.57,   5.94,  99.90,   0.27,
09/07 14Z,   1.10,   5.51,   6.64,  99.90,   0.03,
09/07 15Z,   1.10,   5.88,   6.98,  99.90,   0.00,  (max)
09/07 16Z,   1.10,   5.41,   6.30,  99.90,  -0.21,
09/07 17Z,   1.10,   4.55,   5.13,  99.90,  -0.52,
09/07 18Z,   1.10,   3.64,   4.02,  99.90,  -0.72,
09/07 19Z,   1.00,   2.74,   2.94,  99.90,  -0.80,
09/07 20Z,   1.00,   1.83,   1.91,  99.90,  -0.92,
09/07 21Z,   1.00,   1.02,   1.03,  99.90,  -0.99,
09/07 22Z,   1.00,   0.97,   0.82,  99.90,  -1.15,  (min)
09/07 23Z,   1.00,   2.16,   3.03,  99.90,  -0.13,
09/08 00Z,   1.00,   3.83,   4.75,  99.90,  -0.08,
09/08 01Z,   1.00,   5.18,   6.13,  99.90,  -0.05,
09/08 02Z,   1.00,   6.29,   7.15,  99.90,  -0.14,
09/08 03Z,   1.00,   6.99,   7.94,  99.90,  -0.05,  (max)
09/08 04Z,   1.00,   6.88,   7.88,  99.90,   0.00,
09/08 05Z,   0.90,   6.21,   6.86,  99.90,  -0.25,
09/08 06Z,   0.90,   5.40,   5.62,  99.90,  -0.68,
09/08 07Z,   0.90,   4.50,   4.46,  99.90,  -0.94,
09/08 08Z,   0.90,   3.41,   3.34,  99.90,  -0.97,
09/08 09Z,   0.90,   2.05,   2.25,  99.90,  -0.70,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
09/08 10Z,   0.90,   0.94,  99.90,   1.18,  -0.66,  (min)
09/08 11Z,   0.90,   0.99,  99.90,   1.28,  -0.62,
09/08 12Z,   0.90,   2.12,  99.90,   2.45,  -0.57,
09/08 13Z,   0.90,   3.43,  99.90,   3.79,  -0.53,
09/08 14Z,   0.90,   4.66,  99.90,   5.07,  -0.49,
09/08 15Z,   0.80,   5.75,  99.90,   6.11,  -0.45,
09/08 16Z,   0.80,   6.14,  99.90,   6.53,  -0.40,  (max)
09/08 17Z,   0.80,   5.66,  99.90,   6.09,  -0.36,
09/08 18Z,   0.80,   4.81,  99.90,   5.29,  -0.32,
09/08 19Z,   0.80,   3.89,  99.90,   4.41,  -0.28,
09/08 20Z,   0.80,   2.92,  99.90,   3.49,  -0.23,
09/08 21Z,   0.80,   1.86,  99.90,   2.47,  -0.19,
09/08 22Z,   0.80,   0.90,  99.90,   1.50,  -0.19,
09/08 23Z,   0.70,   0.84,  99.90,   1.35,  -0.19,  (min)
09/09 00Z,   0.70,   2.06,  99.90,   2.57,  -0.19,
09/09 01Z,   0.70,   3.71,  99.90,   4.22,  -0.19,
09/09 02Z,   0.70,   5.14,  99.90,   5.65,  -0.19,
09/09 03Z,   0.70,   6.39,  99.90,   6.89,  -0.19,
09/09 04Z,   0.80,   7.13,  99.90,   7.73,  -0.19,  (max)
09/09 05Z,   0.80,   6.98,  99.90,   7.58,  -0.19,
09/09 06Z,   0.80,   6.29,  99.90,   6.90,  -0.19,
09/09 07Z,   0.80,   5.46,  99.90,   6.07,  -0.19,
09/09 08Z,   0.80,   4.49,  99.90,   5.10,  -0.19,
09/09 09Z,   0.70,   3.26,  99.90,   3.77,  -0.19,
09/09 10Z,   0.70,   1.77,  99.90,   2.28,  -0.19,
09/09 11Z,   0.70,   0.68,  99.90,   1.19,  -0.19,  (min)
09/09 12Z,   0.70,   0.88,  99.90,   1.39,  -0.19,
09/09 13Z,   0.70,   2.13,  99.90,   2.64,  -0.19,
09/09 14Z,   0.70,   3.54,  99.90,   4.05,  -0.19,
09/09 15Z,   0.70,   4.93,  99.90,   5.44,  -0.19,
09/09 16Z,   0.70,   6.09,  99.90,   6.60,  -0.19,
09/09 17Z,   0.70,   6.41,  99.90,   6.91,  -0.19,  (max)
09/09 18Z,   0.70,   5.87,  99.90,   6.38,  -0.19,
09/09 19Z,   0.70,   5.01,  99.90,   5.52,  -0.19,
09/09 20Z,   0.70,   4.05,  99.90,   4.56,  -0.19,
09/09 21Z,   0.70,   3.00,  99.90,   3.50,  -0.19,
09/09 22Z,   0.70,   1.79,  99.90,   2.30,  -0.19,
09/09 23Z,   0.70,   0.75,  99.90,   1.26,  -0.19,  (min)
09/10 00Z,   0.70,   0.77,  99.90,   1.28,  -0.19,
09/10 01Z,   0.70,   2.07,  99.90,   2.58,  -0.19,
09/10 02Z,   0.70,   3.74,  99.90,   4.25,  -0.19,
09/10 03Z,   0.70,   5.23,  99.90,   5.74,  -0.19,
09/10 04Z,   0.80,   6.54,  99.90,   7.15,  -0.19,
09/10 05Z,   0.80,   7.21,  99.90,   7.82,  -0.19,  (max)
09/10 06Z,   0.80,   6.96,  99.90,   7.57,  -0.19,
09/10 07Z,   0.80,   6.22,  99.90,   6.83,  -0.19,
09/10 08Z,   0.80,   5.34,  99.90,   5.94,  -0.19,
09/10 09Z,   0.80,   4.29,  99.90,   4.90,  -0.19,
09/10 10Z,   0.80,   2.95,  99.90,   3.56,  -0.19,
09/10 11Z,   0.80,   1.41,  99.90,   2.02,  -0.19,
09/10 12Z,   0.70,   0.47,  99.90,   0.97,  -0.19,  (min)
09/10 13Z,   0.70,   0.93,  99.90,   1.44,  -0.19,
09/10 14Z,   0.70,   2.34,  99.90,   2.85,  -0.19,
09/10 15Z,   0.60,   3.85,  99.90,   4.26,  -0.19,
09/10 16Z,   0.60,   5.33,  99.90,   5.74,  -0.19,
09/10 17Z,   0.60,   6.45,  99.90,   6.86,  -0.19,
09/10 18Z,   0.50,   6.62,  99.90,   6.93,  -0.19,  (max)
09/10 19Z,   0.50,   5.99,  99.90,   6.30,  -0.19,
09/10 20Z,   0.50,   5.09,  99.90,   5.40,  -0.19,
09/10 21Z,   0.40,   4.09,  99.90,   4.29,  -0.19,
09/10 22Z,   0.40,   2.95,  99.90,   3.16,  -0.19,
09/10 23Z,   0.40,   1.64,  99.90,   1.85,  -0.19,
09/11 00Z,   0.40,   0.62,  99.90,   0.83,  -0.19,  (min)
09/11 01Z,   0.40,   0.81,  99.90,   1.02,  -0.19,
09/11 02Z,   0.40,   2.23,  99.90,   2.43,  -0.19,
09/11 03Z,   0.40,   3.90,  99.90,   4.11,  -0.19,
09/11 04Z,   0.40,   5.41,  99.90,   5.61,  -0.19,
09/11 05Z,   0.40,   6.68,  99.90,   6.89,  -0.19,
09/11 06Z,   0.40,   7.20,  99.90,   7.41,  -0.19,  (max)
09/11 07Z,   0.40,   6.80,  99.90,   7.00,  -0.19,
09/11 08Z,   0.40,   5.97,  99.90,   6.18,  -0.19,
09/11 09Z,   0.40,   5.03,  99.90,   5.23,  -0.19,
09/11 10Z,   0.40,   3.91,  99.90,   4.12,  -0.19,
09/11 11Z,   0.40,   2.53,  99.90,   2.73,  -0.19,
09/11 12Z,   0.40,   1.05,  99.90,   1.26,  -0.19,
09/11 13Z,   0.40,   0.39,  99.90,   0.60,  -0.19,  (min)
09/11 14Z,   0.40,   1.18,  99.90,   1.38,  -0.19,
09/11 15Z,   0.40,   2.74,  99.90,   2.95,  -0.19,
09/11 16Z,   0.40,   4.31,  99.90,   4.52,  -0.19,
09/11 17Z,   0.40,   5.78,  99.90,   5.99,  -0.19,
09/11 18Z,   0.40,   6.76,  99.90,   6.96,  -0.19,
09/11 19Z,   0.50,   6.72,  99.90,   7.03,  -0.19,  (max)
09/11 20Z,   0.50,   5.98,  99.90,   6.29,  -0.19,
09/11 21Z,   0.50,   5.03,  99.90,   5.34,  -0.19,
09/11 22Z,   0.50,   3.98,  99.90,   4.29,  -0.19,
09/11 23Z,   0.50,   2.79,  99.90,   3.10,  -0.19,
09/12 00Z,   0.50,   1.45,  99.90,   1.76,  -0.19,
09/12 01Z,  99.90,   0.55,  99.90,  99.90,  -0.19,
09/12 02Z,  99.90,   0.98,  99.90,  99.90,  -0.19,
09/12 03Z,  99.90,   2.51,  99.90,  99.90,  -0.19,
09/12 04Z,  99.90,   4.15,  99.90,  99.90,  -0.19,
09/12 05Z,  99.90,   5.61,  99.90,  99.90,  -0.19,
09/12 06Z,  99.90,   6.76,  99.90,  99.90,  -0.19,