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 : 07/14/2025 10:20:46 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/12 18Z,   0.80,   4.89,   5.77,  99.90,   0.08,
07/12 19Z,   0.80,   5.57,   6.52,  99.90,   0.15,
07/12 20Z,   0.80,   5.75,   6.82,  99.90,   0.27,  (max)
07/12 21Z,   0.80,   5.17,   6.69,  99.90,   0.72,
07/12 22Z,   0.80,   4.18,   4.77,  99.90,  -0.21,
07/12 23Z,   0.90,   3.14,   3.74,  99.90,  -0.30,
07/13 00Z,   0.90,   2.16,   2.68,  99.90,  -0.38,
07/13 01Z,   0.90,   1.33,   1.68,  99.90,  -0.55,
07/13 02Z,   0.90,   0.80,   0.90,  99.90,  -0.80,  (min)
07/13 03Z,   0.90,   1.09,   1.89,  99.90,  -0.10,
07/13 04Z,   0.90,   2.67,   3.72,  99.90,   0.15,
07/13 05Z,   0.90,   4.72,   5.07,  99.90,  -0.55,
07/13 06Z,   0.90,   6.14,   6.83,  99.90,  -0.21,
07/13 07Z,   0.90,   6.86,   7.77,  99.90,   0.01,
07/13 08Z,   0.90,   7.09,   8.12,  99.90,   0.13,  (max)
07/13 09Z,   0.90,   6.57,   7.63,  99.90,   0.16,
07/13 10Z,   0.90,   5.50,   6.21,  99.90,  -0.19,
07/13 11Z,   0.90,   4.34,   5.00,  99.90,  -0.24,
07/13 12Z,   0.90,   3.19,   3.92,  99.90,  -0.17,
07/13 13Z,   0.90,   2.08,   2.84,  99.90,  -0.14,
07/13 14Z,   0.90,   1.07,   1.76,  99.90,  -0.21,
07/13 15Z,   0.90,   0.53,   0.97,  99.90,  -0.46,  (min)
07/13 16Z,   0.90,   1.16,   1.31,  99.90,  -0.75,
07/13 17Z,   0.90,   2.84,   3.09,  99.90,  -0.65,
07/13 18Z,   0.90,   4.39,   5.19,  99.90,  -0.10,
07/13 19Z,   0.90,   5.31,   6.33,  99.90,   0.12,
07/13 20Z,   0.90,   5.84,   6.99,  99.90,   0.25,
07/13 21Z,   0.90,   5.78,   7.08,  99.90,   0.40,  (max)
07/13 22Z,   0.90,   5.01,   5.92,  99.90,   0.01,
07/13 23Z,   1.00,   3.95,   4.99,  99.90,   0.04,
07/14 00Z,   0.90,   2.89,   3.73,  99.90,  -0.06,
07/14 01Z,   0.90,   1.92,   2.65,  99.90,  -0.17,
07/14 02Z,   1.00,   1.14,   1.63,  99.90,  -0.51,
07/14 03Z,   1.00,   0.73,   0.95,  99.90,  -0.78,  (min)
07/14 04Z,   1.00,   1.30,   1.79,  99.90,  -0.51,
07/14 05Z,   1.00,   3.11,   4.46,  99.90,   0.35,
07/14 06Z,   1.00,   5.14,   5.87,  99.90,  -0.27,
07/14 07Z,   1.00,   6.40,   6.97,  99.90,  -0.43,
07/14 08Z,   1.00,   6.96,   7.85,  99.90,  -0.11,
07/14 09Z,   1.00,   6.98,   8.00,  99.90,   0.02,  (max)
07/14 10Z,   1.00,   6.25,   6.94,  99.90,  -0.31,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/14 11Z,   0.90,   5.06,  99.90,   5.66,  -0.30,
07/14 12Z,   0.90,   3.85,  99.90,   4.45,  -0.29,
07/14 13Z,   0.90,   2.68,  99.90,   3.30,  -0.28,
07/14 14Z,   0.90,   1.61,  99.90,   2.24,  -0.27,
07/14 15Z,   0.90,   0.73,  99.90,   1.37,  -0.26,
07/14 16Z,   0.90,   0.48,  99.90,   1.12,  -0.25,  (min)
07/14 17Z,   0.90,   1.50,  99.90,   2.15,  -0.25,
07/14 18Z,   0.90,   3.37,  99.90,   4.03,  -0.24,
07/14 19Z,   0.90,   4.88,  99.90,   5.55,  -0.23,
07/14 20Z,   0.90,   5.69,  99.90,   6.38,  -0.22,
07/14 21Z,   0.90,   6.08,  99.90,   6.77,  -0.21,  (max)
07/14 22Z,   0.90,   5.81,  99.90,   6.52,  -0.20,
07/14 23Z,   0.90,   4.89,  99.90,   5.59,  -0.20,
07/15 00Z,   0.90,   3.77,  99.90,   4.47,  -0.20,
07/15 01Z,   0.90,   2.69,  99.90,   3.40,  -0.20,
07/15 02Z,   0.90,   1.74,  99.90,   2.44,  -0.20,
07/15 03Z,   0.90,   1.00,  99.90,   1.70,  -0.20,
07/15 04Z,   1.00,   0.73,  99.90,   1.53,  -0.20,  (min)
07/15 05Z,   0.90,   1.53,  99.90,   2.23,  -0.20,
07/15 06Z,   0.90,   3.47,  99.90,   4.18,  -0.20,
07/15 07Z,   0.90,   5.41,  99.90,   6.11,  -0.20,
07/15 08Z,   0.90,   6.49,  99.90,   7.19,  -0.20,
07/15 09Z,   0.90,   6.92,  99.90,   7.63,  -0.20,  (max)
07/15 10Z,   0.80,   6.77,  99.90,   7.38,  -0.20,
07/15 11Z,   0.80,   5.88,  99.90,   6.48,  -0.20,
07/15 12Z,   0.80,   4.61,  99.90,   5.22,  -0.20,
07/15 13Z,   0.80,   3.36,  99.90,   3.97,  -0.20,
07/15 14Z,   0.80,   2.21,  99.90,   2.81,  -0.20,
07/15 15Z,   0.80,   1.21,  99.90,   1.81,  -0.20,
07/15 16Z,   0.80,   0.49,  99.90,   1.09,  -0.20,
07/15 17Z,   0.70,   0.54,  99.90,   1.05,  -0.20,  (min)
07/15 18Z,   0.70,   1.90,  99.90,   2.40,  -0.20,
07/15 19Z,   0.70,   3.87,  99.90,   4.38,  -0.20,
07/15 20Z,   0.70,   5.30,  99.90,   5.80,  -0.20,
07/15 21Z,   0.70,   6.03,  99.90,   6.53,  -0.20,
07/15 22Z,   0.70,   6.29,  99.90,   6.79,  -0.20,  (max)
07/15 23Z,   0.70,   5.86,  99.90,   6.36,  -0.20,
07/16 00Z,   0.70,   4.83,  99.90,   5.33,  -0.20,
07/16 01Z,   0.70,   3.67,  99.90,   4.17,  -0.20,
07/16 02Z,   0.70,   2.58,  99.90,   3.08,  -0.20,
07/16 03Z,   0.70,   1.64,  99.90,   2.15,  -0.20,
07/16 04Z,   0.70,   0.95,  99.90,   1.45,  -0.20,
07/16 05Z,   0.70,   0.77,  99.90,   1.27,  -0.20,  (min)
07/16 06Z,   0.70,   1.74,  99.90,   2.24,  -0.20,
07/16 07Z,   0.70,   3.73,  99.90,   4.23,  -0.20,
07/16 08Z,   0.70,   5.50,  99.90,   6.00,  -0.20,
07/16 09Z,   0.70,   6.42,  99.90,   6.92,  -0.20,
07/16 10Z,   0.70,   6.77,  99.90,   7.27,  -0.20,  (max)
07/16 11Z,   0.60,   6.50,  99.90,   6.90,  -0.20,
07/16 12Z,   0.60,   5.50,  99.90,   5.90,  -0.20,
07/16 13Z,   0.60,   4.19,  99.90,   4.59,  -0.20,
07/16 14Z,   0.60,   2.94,  99.90,   3.34,  -0.20,
07/16 15Z,   0.60,   1.82,  99.90,   2.22,  -0.20,
07/16 16Z,   0.60,   0.92,  99.90,   1.32,  -0.20,
07/16 17Z,   0.60,   0.37,  99.90,   0.77,  -0.20,  (min)
07/16 18Z,   0.60,   0.71,  99.90,   1.11,  -0.20,
07/16 19Z,   0.60,   2.31,  99.90,   2.71,  -0.20,
07/16 20Z,   0.60,   4.30,  99.90,   4.71,  -0.20,
07/16 21Z,   0.60,   5.63,  99.90,   6.03,  -0.20,
07/16 22Z,   0.60,   6.29,  99.90,   6.70,  -0.20,
07/16 23Z,   0.70,   6.47,  99.90,   6.98,  -0.20,  (max)
07/17 00Z,   0.70,   5.92,  99.90,   6.42,  -0.20,
07/17 01Z,   0.70,   4.82,  99.90,   5.32,  -0.20,
07/17 02Z,   0.70,   3.65,  99.90,   4.15,  -0.20,
07/17 03Z,   0.70,   2.58,  99.90,   3.08,  -0.20,
07/17 04Z,   0.70,   1.66,  99.90,   2.16,  -0.20,
07/17 05Z,   0.70,   0.97,  99.90,   1.47,  -0.20,
07/17 06Z,   0.70,   0.85,  99.90,   1.35,  -0.20,  (min)
07/17 07Z,   0.60,   1.90,  99.90,   2.31,  -0.20,
07/17 08Z,   0.60,   3.82,  99.90,   4.23,  -0.20,
07/17 09Z,   0.60,   5.40,  99.90,   5.81,  -0.20,
07/17 10Z,   0.60,   6.21,  99.90,   6.61,  -0.20,
07/17 11Z,   0.60,   6.53,  99.90,   6.93,  -0.20,  (max)
07/17 12Z,   0.60,   6.19,  99.90,   6.59,  -0.20,
07/17 13Z,   0.60,   5.14,  99.90,   5.54,  -0.20,
07/17 14Z,   0.60,   3.84,  99.90,   4.24,  -0.20,
07/17 15Z,   0.60,   2.62,  99.90,   3.02,  -0.20,
07/17 16Z,   0.60,   1.57,  99.90,   1.97,  -0.20,
07/17 17Z,   0.60,   0.77,  99.90,   1.17,  -0.20,
07/17 18Z,   0.60,   0.36,  99.90,   0.77,  -0.20,  (min)
07/17 19Z,   0.60,   0.93,  99.90,   1.33,  -0.20,
07/17 20Z,   0.60,   2.68,  99.90,   3.08,  -0.20,
07/17 21Z,   0.60,   4.62,  99.90,   5.03,  -0.20,
07/17 22Z,   0.60,   5.85,  99.90,   6.25,  -0.20,
07/17 23Z,   0.60,   6.50,  99.90,   6.90,  -0.20,
07/18 00Z,   0.60,   6.63,  99.90,   7.04,  -0.20,
07/18 01Z,  99.90,   6.00,  99.90,  99.90,  -0.20,
07/18 02Z,  99.90,   4.88,  99.90,  99.90,  -0.20,
07/18 03Z,  99.90,   3.73,  99.90,  99.90,  -0.20,
07/18 04Z,  99.90,   2.68,  99.90,  99.90,  -0.20,
07/18 05Z,  99.90,   1.77,  99.90,  99.90,  -0.20,
07/18 06Z,  99.90,   1.05,  99.90,  99.90,  -0.20,