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 : 07/14/2026 18:22:09 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/13 00Z,   1.00,   1.30,   2.44,  99.90,   0.14,  (min)
07/13 01Z,   1.00,   3.06,   4.41,  99.90,   0.35,
07/13 02Z,   1.10,   4.92,   5.93,  99.90,  -0.09,
07/13 03Z,   1.10,   6.24,   7.09,  99.90,  -0.25,
07/13 04Z,   1.00,   7.14,   8.03,  99.90,  -0.11,
07/13 05Z,   1.00,   7.36,   8.22,  99.90,  -0.14,  0.05 ft above HAT  (max)
07/13 06Z,   1.00,   6.74,   7.37,  99.90,  -0.37,
07/13 07Z,   1.00,   5.77,   6.08,  99.90,  -0.69,
07/13 08Z,   1.00,   4.80,   4.88,  99.90,  -0.92,
07/13 09Z,   1.00,   3.81,   3.74,  99.90,  -1.07,
07/13 10Z,   1.00,   2.64,   2.60,  99.90,  -1.04,
07/13 11Z,   0.90,   1.34,   1.57,  99.90,  -0.67,
07/13 12Z,   0.80,   0.64,   0.76,  99.90,  -0.68,  (min)
07/13 13Z,   0.80,   1.28,   1.16,  99.90,  -0.92,
07/13 14Z,   0.80,   2.73,   3.48,  99.90,  -0.05,
07/13 15Z,   0.80,   4.07,   4.95,  99.90,   0.08,
07/13 16Z,   0.80,   5.16,   6.03,  99.90,   0.07,
07/13 17Z,   0.80,   5.85,   6.61,  99.90,  -0.04,  (max)
07/13 18Z,   0.80,   5.67,   6.49,  99.90,   0.02,
07/13 19Z,   0.80,   4.82,   5.44,  99.90,  -0.18,
07/13 20Z,   0.80,   3.85,   4.28,  99.90,  -0.37,
07/13 21Z,   0.80,   2.93,   3.21,  99.90,  -0.52,
07/13 22Z,   0.80,   2.04,   2.12,  99.90,  -0.72,
07/13 23Z,   0.80,   1.15,   1.07,  99.90,  -0.88,
07/14 00Z,   0.80,   0.64,   0.28,  99.90,  -1.16,  (min)
07/14 01Z,   0.80,   1.33,   2.02,  99.90,  -0.11,
07/14 02Z,   0.80,   3.14,   4.20,  99.90,   0.26,
07/14 03Z,   0.80,   4.97,   5.79,  99.90,   0.02,
07/14 04Z,   0.80,   6.32,   6.99,  99.90,  -0.13,
07/14 05Z,   0.80,   7.23,   7.98,  99.90,  -0.05,
07/14 06Z,   0.70,   7.39,   8.21,  99.90,   0.12,  0.04 ft above HAT  (max)
07/14 07Z,   0.70,   6.74,   7.30,  99.90,  -0.14,
07/14 08Z,   0.70,   5.81,   6.00,  99.90,  -0.51,
07/14 09Z,   0.70,   4.88,   4.81,  99.90,  -0.77,
07/14 10Z,   0.70,   3.82,   3.68,  99.90,  -0.84,
07/14 11Z,   0.70,   2.52,   2.52,  99.90,  -0.70,
07/14 12Z,   0.70,   1.12,   1.48,  99.90,  -0.34,
07/14 13Z,   0.70,   0.48,   0.62,  99.90,  -0.56,  (min)
07/14 14Z,   0.60,   1.27,   0.91,  99.90,  -0.96,
07/14 15Z,   0.60,   2.77,   3.20,  99.90,  -0.17,
07/14 16Z,   0.60,   4.14,   4.74,  99.90,  -0.00,
07/14 17Z,   0.60,   5.30,   5.84,  99.90,  -0.06,
07/14 18Z,   0.60,   5.96,   6.44,  99.90,  -0.12,  (max)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/14 19Z,   0.60,   5.72,  99.90,   6.18,  -0.14,
07/14 20Z,   0.60,   4.89,  99.90,   5.33,  -0.16,
07/14 21Z,   0.50,   3.96,  99.90,   4.28,  -0.17,
07/14 22Z,   0.50,   3.04,  99.90,   3.34,  -0.19,
07/14 23Z,   0.50,   2.07,  99.90,   2.36,  -0.21,
07/15 00Z,   0.50,   1.07,  99.90,   1.35,  -0.23,
07/15 01Z,   0.50,   0.57,  99.90,   0.83,  -0.24,  (min)
07/15 02Z,   0.50,   1.40,  99.90,   1.64,  -0.26,
07/15 03Z,   0.50,   3.26,  99.90,   3.49,  -0.28,
07/15 04Z,   0.50,   5.04,  99.90,   5.25,  -0.29,
07/15 05Z,   0.50,   6.37,  99.90,   6.56,  -0.31,
07/15 06Z,   0.50,   7.26,  99.90,   7.43,  -0.33,  (max)
07/15 07Z,   0.40,   7.33,  99.90,   7.41,  -0.33,
07/15 08Z,   0.40,   6.65,  99.90,   6.72,  -0.33,
07/15 09Z,   0.40,   5.75,  99.90,   5.83,  -0.33,
07/15 10Z,   0.30,   4.81,  99.90,   4.78,  -0.33,
07/15 11Z,   0.30,   3.69,  99.90,   3.66,  -0.33,
07/15 12Z,   0.20,   2.27,  99.90,   2.15,  -0.33,
07/15 13Z,   0.20,   0.85,  99.90,   0.72,  -0.33,
07/15 14Z,   0.20,   0.39,  99.90,   0.26,  -0.33,  (min)
07/15 15Z,   0.10,   1.36,  99.90,   1.13,  -0.33,
07/15 16Z,   0.10,   2.91,  99.90,   2.69,  -0.33,
07/15 17Z,   0.10,   4.30,  99.90,   4.08,  -0.33,
07/15 18Z,   0.00,   5.48,  99.90,   5.15,  -0.33,
07/15 19Z,   0.00,   6.08,  99.90,   5.76,  -0.33,  (max)
07/15 20Z,   0.00,   5.78,  99.90,   5.45,  -0.33,
07/15 21Z,   0.00,   4.95,  99.90,   4.63,  -0.33,
07/15 22Z,   0.00,   4.04,  99.90,   3.72,  -0.33,
07/15 23Z,   0.00,   3.09,  99.90,   2.76,  -0.33,
07/16 00Z,   0.00,   2.04,  99.90,   1.71,  -0.33,
07/16 01Z,   0.00,   0.97,  99.90,   0.65,  -0.33,
07/16 02Z,   0.00,   0.55,  99.90,   0.22,  -0.33,  (min)
07/16 03Z,   0.00,   1.53,  99.90,   1.20,  -0.33,
07/16 04Z,   0.00,   3.41,  99.90,   3.08,  -0.33,
07/16 05Z,   0.00,   5.10,  99.90,   4.78,  -0.33,
07/16 06Z,   0.00,   6.38,  99.90,   6.06,  -0.33,
07/16 07Z,   0.10,   7.21,  99.90,   6.98,  -0.33,  (max)
07/16 08Z,   0.10,   7.18,  99.90,   6.95,  -0.33,
07/16 09Z,   0.10,   6.47,  99.90,   6.24,  -0.33,
07/16 10Z,   0.10,   5.58,  99.90,   5.35,  -0.33,
07/16 11Z,   0.10,   4.60,  99.90,   4.37,  -0.33,
07/16 12Z,   0.10,   3.40,  99.90,   3.17,  -0.33,
07/16 13Z,   0.10,   1.92,  99.90,   1.70,  -0.33,
07/16 14Z,   0.20,   0.58,  99.90,   0.45,  -0.33,
07/16 15Z,   0.20,   0.37,  99.90,   0.24,  -0.33,  (min)
07/16 16Z,   0.20,   1.55,  99.90,   1.42,  -0.33,
07/16 17Z,   0.20,   3.13,  99.90,   3.01,  -0.33,
07/16 18Z,   0.30,   4.52,  99.90,   4.49,  -0.33,
07/16 19Z,   0.30,   5.68,  99.90,   5.66,  -0.33,
07/16 20Z,   0.40,   6.20,  99.90,   6.28,  -0.33,  (max)
07/16 21Z,   0.40,   5.82,  99.90,   5.90,  -0.33,
07/16 22Z,   0.40,   5.00,  99.90,   5.07,  -0.33,
07/16 23Z,   0.40,   4.08,  99.90,   4.16,  -0.33,
07/17 00Z,   0.40,   3.08,  99.90,   3.15,  -0.33,
07/17 01Z,   0.50,   1.96,  99.90,   2.13,  -0.33,
07/17 02Z,   0.50,   0.87,  99.90,   1.05,  -0.33,
07/17 03Z,   0.50,   0.58,  99.90,   0.76,  -0.33,  (min)
07/17 04Z,   0.50,   1.72,  99.90,   1.89,  -0.33,
07/17 05Z,   0.50,   3.56,  99.90,   3.74,  -0.33,
07/17 06Z,   0.50,   5.14,  99.90,   5.31,  -0.33,
07/17 07Z,   0.50,   6.35,  99.90,   6.53,  -0.33,
07/17 08Z,   0.50,   7.08,  99.90,   7.26,  -0.33,  (max)
07/17 09Z,   0.50,   6.95,  99.90,   7.12,  -0.33,
07/17 10Z,   0.50,   6.20,  99.90,   6.37,  -0.33,
07/17 11Z,   0.40,   5.28,  99.90,   5.36,  -0.33,
07/17 12Z,   0.40,   4.25,  99.90,   4.32,  -0.33,
07/17 13Z,   0.40,   3.00,  99.90,   3.07,  -0.33,
07/17 14Z,   0.40,   1.52,  99.90,   1.59,  -0.33,
07/17 15Z,   0.40,   0.35,  99.90,   0.42,  -0.33,  (min)
07/17 16Z,   0.40,   0.46,  99.90,   0.53,  -0.33,
07/17 17Z,   0.40,   1.82,  99.90,   1.90,  -0.33,
07/17 18Z,   0.50,   3.41,  99.90,   3.58,  -0.33,
07/17 19Z,   0.50,   4.77,  99.90,   4.95,  -0.33,
07/17 20Z,   0.50,   5.90,  99.90,   6.07,  -0.33,
07/17 21Z,   0.50,   6.31,  99.90,   6.48,  -0.33,  (max)
07/17 22Z,   0.50,   5.86,  99.90,   6.03,  -0.33,
07/17 23Z,   0.60,   5.02,  99.90,   5.30,  -0.33,
07/18 00Z,   0.60,   4.07,  99.90,   4.35,  -0.33,
07/18 01Z,   0.60,   3.02,  99.90,   3.29,  -0.33,
07/18 02Z,   0.60,   1.85,  99.90,   2.12,  -0.33,
07/18 03Z,   0.60,   0.79,  99.90,   1.07,  -0.33,
07/18 04Z,   0.60,   0.68,  99.90,   0.95,  -0.33,  (min)
07/18 05Z,   0.60,   1.93,  99.90,   2.21,  -0.33,
07/18 06Z,   0.60,   3.70,  99.90,   3.97,  -0.33,
07/18 07Z,   0.60,   5.14,  99.90,   5.41,  -0.33,
07/18 08Z,   0.60,   6.27,  99.90,   6.55,  -0.33,
07/18 09Z,   0.60,   6.90,  99.90,   7.17,  -0.33,  (max)
07/18 10Z,   0.60,   6.65,  99.90,   6.93,  -0.33,
07/18 11Z,   0.60,   5.85,  99.90,   6.13,  -0.33,
07/18 12Z,   0.60,   4.89,  99.90,   5.17,  -0.33,