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 : 07/18/2025 07:21:30 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/16 12Z,   0.70,  -2.67,  -2.16,  99.90,  -0.19,
07/16 13Z,   0.60,  -3.98,  -3.29,  99.90,   0.09,
07/16 14Z,   0.60,  -5.23,  -4.37,  99.90,   0.26,
07/16 15Z,   0.60,  -6.35,  -5.45,  99.90,   0.30,
07/16 16Z,   0.60,  -7.25,  -6.48,  99.90,   0.17,
07/16 17Z,   0.60,  -7.80,  -7.35,  99.90,  -0.15,
07/16 18Z,   0.60,  -7.46,  -7.36,  99.90,  -0.50,  (min)
07/16 19Z,   0.60,  -5.86,  -4.56,  99.90,   0.70,
07/16 20Z,   0.60,  -3.87,  -3.02,  99.90,   0.25,
07/16 21Z,   0.60,  -2.54,  -1.83,  99.90,   0.11,
07/16 22Z,   0.70,  -1.88,  -1.03,  99.90,   0.15,
07/16 23Z,   0.70,  -1.70,  -0.70,  99.90,   0.30,  (max)
07/17 00Z,   0.70,  -2.25,  -1.55,  99.90,   0.00,
07/17 01Z,   0.70,  -3.35,  -2.60,  99.90,   0.05,
07/17 02Z,   0.70,  -4.52,  -4.00,  99.90,  -0.18,
07/17 03Z,   0.70,  -5.59,  -5.10,  99.90,  -0.21,
07/17 04Z,   0.70,  -6.51,  -6.05,  99.90,  -0.24,
07/17 05Z,   0.70,  -7.20,  -6.91,  99.90,  -0.41,
07/17 06Z,   0.70,  -7.32,  -7.30,  99.90,  -0.68,  (min)
07/17 07Z,   0.70,  -6.27,  -5.77,  99.90,  -0.20,
07/17 08Z,   0.70,  -4.35,  -4.11,  99.90,  -0.46,
07/17 09Z,   0.70,  -2.77,  -2.68,  99.90,  -0.61,
07/17 10Z,   0.60,  -1.96,  -1.61,  99.90,  -0.25,
07/17 11Z,   0.60,  -1.64,  -0.94,  99.90,   0.10,  (max)
07/17 12Z,   0.60,  -1.98,  -1.54,  99.90,  -0.16,
07/17 13Z,   0.60,  -3.03,  -2.64,  99.90,  -0.21,
07/17 14Z,   0.60,  -4.33,  -3.71,  99.90,   0.02,
07/17 15Z,   0.60,  -5.55,  -4.75,  99.90,   0.20,
07/17 16Z,   0.60,  -6.60,  -5.82,  99.90,   0.18,
07/17 17Z,   0.60,  -7.40,  -6.83,  99.90,  -0.03,
07/17 18Z,   0.60,  -7.81,  -7.62,  99.90,  -0.41,  (min)
07/17 19Z,   0.60,  -7.24,  -7.14,  99.90,  -0.50,
07/17 20Z,   0.60,  -5.49,  -4.79,  99.90,   0.10,
07/17 21Z,   0.60,  -3.55,  -3.10,  99.90,  -0.15,
07/17 22Z,   0.60,  -2.32,  -1.87,  99.90,  -0.15,
07/17 23Z,   0.60,  -1.67,  -1.03,  99.90,   0.04,
07/18 00Z,   0.60,  -1.54,  -0.82,  99.90,   0.12,  (max)
07/18 01Z,   0.60,  -2.17,  -1.77,  99.90,  -0.20,
07/18 02Z,   0.60,  -3.29,  -2.95,  99.90,  -0.26,
07/18 03Z,   0.60,  -4.44,  -4.06,  99.90,  -0.22,
07/18 04Z,   0.60,  -5.49,  -5.15,  99.90,  -0.26,
07/18 05Z,   0.60,  -6.40,  -6.21,  99.90,  -0.41,
07/18 06Z,   0.60,  -7.12,  -7.11,  99.90,  -0.59,
07/18 07Z,   0.50,  -7.25,  -7.59,  99.90,  -0.84,  (min)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/18 08Z,   0.50,  -6.19,  99.90,  -6.48,  -0.78,
07/18 09Z,   0.50,  -4.40,  99.90,  -4.63,  -0.72,
07/18 10Z,   0.50,  -3.01,  99.90,  -3.17,  -0.66,
07/18 11Z,   0.50,  -2.25,  99.90,  -2.35,  -0.60,
07/18 12Z,   0.40,  -1.90,  99.90,  -2.05,  -0.54,  (max)
07/18 13Z,   0.40,  -2.26,  99.90,  -2.35,  -0.49,
07/18 14Z,   0.40,  -3.32,  99.90,  -3.35,  -0.43,
07/18 15Z,   0.40,  -4.58,  99.90,  -4.54,  -0.37,
07/18 16Z,   0.40,  -5.73,  99.90,  -5.63,  -0.31,
07/18 17Z,   0.40,  -6.69,  99.90,  -6.54,  -0.25,
07/18 18Z,   0.40,  -7.42,  99.90,  -7.20,  -0.19,
07/18 19Z,   0.40,  -7.73,  99.90,  -7.46,  -0.13,  (min)
07/18 20Z,   0.40,  -7.02,  99.90,  -6.74,  -0.13,
07/18 21Z,   0.40,  -5.20,  99.90,  -4.93,  -0.13,
07/18 22Z,   0.40,  -3.35,  99.90,  -3.08,  -0.13,
07/18 23Z,   0.40,  -2.19,  99.90,  -1.92,  -0.13,
07/19 00Z,   0.40,  -1.51,  99.90,  -1.24,  -0.13,
07/19 01Z,   0.40,  -1.39,  99.90,  -1.12,  -0.13,  (max)
07/19 02Z,   0.40,  -2.07,  99.90,  -1.80,  -0.13,
07/19 03Z,   0.40,  -3.17,  99.90,  -2.90,  -0.13,
07/19 04Z,   0.40,  -4.27,  99.90,  -4.00,  -0.13,
07/19 05Z,   0.40,  -5.29,  99.90,  -5.02,  -0.13,
07/19 06Z,   0.40,  -6.22,  99.90,  -5.95,  -0.13,
07/19 07Z,   0.40,  -7.02,  99.90,  -6.75,  -0.13,
07/19 08Z,   0.50,  -7.22,  99.90,  -6.84,  -0.13,  (min)
07/19 09Z,   0.50,  -6.22,  99.90,  -5.85,  -0.13,
07/19 10Z,   0.50,  -4.59,  99.90,  -4.22,  -0.13,
07/19 11Z,   0.50,  -3.34,  99.90,  -2.96,  -0.13,
07/19 12Z,   0.50,  -2.54,  99.90,  -2.17,  -0.13,
07/19 13Z,   0.50,  -2.13,  99.90,  -1.76,  -0.13,  (max)
07/19 14Z,   0.50,  -2.49,  99.90,  -2.11,  -0.13,
07/19 15Z,   0.50,  -3.51,  99.90,  -3.14,  -0.13,
07/19 16Z,   0.50,  -4.69,  99.90,  -4.32,  -0.13,
07/19 17Z,   0.50,  -5.76,  99.90,  -5.39,  -0.13,
07/19 18Z,   0.50,  -6.65,  99.90,  -6.28,  -0.13,
07/19 19Z,   0.50,  -7.35,  99.90,  -6.98,  -0.13,
07/19 20Z,   0.50,  -7.62,  99.90,  -7.25,  -0.13,  (min)
07/19 21Z,   0.50,  -6.83,  99.90,  -6.46,  -0.13,
07/19 22Z,   0.50,  -5.02,  99.90,  -4.65,  -0.13,
07/19 23Z,   0.60,  -3.28,  99.90,  -2.80,  -0.13,
07/20 00Z,   0.60,  -2.13,  99.90,  -1.66,  -0.13,
07/20 01Z,   0.60,  -1.39,  99.90,  -0.91,  -0.13,
07/20 02Z,   0.60,  -1.27,  99.90,  -0.80,  -0.13,  (max)
07/20 03Z,   0.60,  -1.96,  99.90,  -1.49,  -0.13,
07/20 04Z,   0.60,  -3.00,  99.90,  -2.53,  -0.13,
07/20 05Z,   0.60,  -4.04,  99.90,  -3.57,  -0.13,
07/20 06Z,   0.70,  -5.03,  99.90,  -4.46,  -0.13,
07/20 07Z,   0.70,  -6.02,  99.90,  -5.45,  -0.13,
07/20 08Z,   0.70,  -6.96,  99.90,  -6.39,  -0.13,
07/20 09Z,   0.70,  -7.24,  99.90,  -6.67,  -0.13,  (min)
07/20 10Z,   0.70,  -6.32,  99.90,  -5.75,  -0.13,
07/20 11Z,   0.70,  -4.84,  99.90,  -4.26,  -0.13,
07/20 12Z,   0.70,  -3.66,  99.90,  -3.09,  -0.13,
07/20 13Z,   0.70,  -2.78,  99.90,  -2.21,  -0.13,
07/20 14Z,   0.70,  -2.29,  99.90,  -1.72,  -0.13,  (max)
07/20 15Z,   0.70,  -2.62,  99.90,  -2.05,  -0.13,
07/20 16Z,   0.70,  -3.60,  99.90,  -3.03,  -0.13,
07/20 17Z,   0.70,  -4.69,  99.90,  -4.12,  -0.13,
07/20 18Z,   0.70,  -5.68,  99.90,  -5.11,  -0.13,
07/20 19Z,   0.70,  -6.53,  99.90,  -5.96,  -0.13,
07/20 20Z,   0.70,  -7.25,  99.90,  -6.68,  -0.13,
07/20 21Z,   0.70,  -7.54,  99.90,  -6.97,  -0.13,  (min)
07/20 22Z,   0.70,  -6.70,  99.90,  -6.13,  -0.13,
07/20 23Z,   0.70,  -4.92,  99.90,  -4.35,  -0.13,
07/21 00Z,   0.70,  -3.26,  99.90,  -2.69,  -0.13,
07/21 01Z,   0.70,  -2.09,  99.90,  -1.52,  -0.13,
07/21 02Z,   0.70,  -1.28,  99.90,  -0.70,  -0.13,
07/21 03Z,   0.60,  -1.16,  99.90,  -0.69,  -0.13,  (max)
07/21 04Z,   0.60,  -1.84,  99.90,  -1.37,  -0.13,
07/21 05Z,   0.60,  -2.82,  99.90,  -2.35,  -0.13,
07/21 06Z,   0.60,  -3.79,  99.90,  -3.32,  -0.13,
07/21 07Z,   0.60,  -4.78,  99.90,  -4.30,  -0.13,
07/21 08Z,   0.60,  -5.87,  99.90,  -5.40,  -0.13,
07/21 09Z,   0.60,  -6.96,  99.90,  -6.49,  -0.13,
07/21 10Z,   0.50,  -7.32,  99.90,  -6.95,  -0.13,  (min)
07/21 11Z,   0.50,  -6.46,  99.90,  -6.09,  -0.13,
07/21 12Z,   0.50,  -5.07,  99.90,  -4.70,  -0.13,
07/21 13Z,   0.50,  -3.90,  99.90,  -3.53,  -0.13,
07/21 14Z,   0.50,  -2.91,  99.90,  -2.54,  -0.13,
07/21 15Z,   0.50,  -2.35,  99.90,  -1.98,  -0.13,  (max)
07/21 16Z,   0.50,  -2.68,  99.90,  -2.31,  -0.13,
07/21 17Z,   0.50,  -3.60,  99.90,  -3.23,  -0.13,
07/21 18Z,   0.50,  -4.61,  99.90,  -4.24,  -0.13,
07/21 19Z,   0.50,  -5.54,  99.90,  -5.17,  -0.13,
07/21 20Z,   0.50,  -6.39,  99.90,  -6.02,  -0.13,
07/21 21Z,   0.50,  -7.18,  99.90,  -6.81,  -0.13,
07/21 22Z,   0.50,  -7.49,  99.90,  -7.12,  -0.13,  (min)
07/21 23Z,   0.50,  -6.61,  99.90,  -6.24,  -0.13,
07/22 00Z,   0.50,  -4.87,  99.90,  -4.49,  -0.13,