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
Atlantic City, NJ
Cape May, NJ
Philadelphia, PA
Reedy Pnt, DE
Lewes, DE
Ocean City, MD
Wachapreague
Kiptopeke, VA
Cambridge, MD
Baltimore, MD
Annapolis, MD
Solomons Is, MD
Washington DC
Colonial Beach
Lewisetta, VA
Gloucester Pnt
Hampton Road
Portsmouth, VA
CBBT, VA
Duck Pier, NC
Cape Hatteras NC
Surge List
East Coast
#Philadelphia, PA : 07/19/2025 09:21:35 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/17 18Z,   0.60,   0.36,   0.55,  99.90,  -0.41,
07/17 19Z,   0.60,   0.93,   1.03,  99.90,  -0.50,  (min)
07/17 20Z,   0.60,   2.68,   3.38,  99.90,   0.10,
07/17 21Z,   0.60,   4.62,   5.07,  99.90,  -0.15,
07/17 22Z,   0.60,   5.85,   6.30,  99.90,  -0.15,
07/17 23Z,   0.60,   6.50,   7.14,  99.90,   0.04,
07/18 00Z,   0.60,   6.63,   7.35,  99.90,   0.12,  (max)
07/18 01Z,   0.60,   6.00,   6.40,  99.90,  -0.20,
07/18 02Z,   0.60,   4.88,   5.22,  99.90,  -0.26,
07/18 03Z,   0.60,   3.73,   4.11,  99.90,  -0.22,
07/18 04Z,   0.60,   2.68,   3.02,  99.90,  -0.26,
07/18 05Z,   0.60,   1.77,   1.96,  99.90,  -0.41,
07/18 06Z,   0.60,   1.05,   1.06,  99.90,  -0.59,
07/18 07Z,   0.60,   0.92,   0.58,  99.90,  -0.94,  (min)
07/18 08Z,   0.50,   1.98,   1.45,  99.90,  -1.03,
07/18 09Z,   0.50,   3.77,   2.65,  99.90,  -1.62,
07/18 10Z,   0.50,   5.16,   3.81,  99.90,  -1.85,
07/18 11Z,   0.50,   5.92,   4.94,  99.90,  -1.48,
07/18 12Z,   0.50,   6.27,   5.85,  99.90,  -0.92,
07/18 13Z,   0.50,   5.91,   6.20,  99.90,  -0.21,  (max)
07/18 14Z,   0.50,   4.85,   4.95,  99.90,  -0.40,
07/18 15Z,   0.50,   3.59,   3.86,  99.90,  -0.23,
07/18 16Z,   0.50,   2.44,   2.75,  99.90,  -0.19,
07/18 17Z,   0.50,   1.48,   1.64,  99.90,  -0.34,
07/18 18Z,   0.50,   0.75,   0.62,  99.90,  -0.63,
07/18 19Z,   0.50,   0.44,  -0.02,  99.90,  -0.96,  (min)
07/18 20Z,   0.50,   1.15,   1.41,  99.90,  -0.24,
07/18 21Z,   0.50,   2.97,   3.59,  99.90,   0.12,
07/18 22Z,   0.50,   4.82,   5.09,  99.90,  -0.23,
07/18 23Z,   0.50,   5.98,   6.27,  99.90,  -0.21,
07/19 00Z,   0.50,   6.66,   7.15,  99.90,  -0.01,  (max)
07/19 01Z,   0.50,   6.78,   7.14,  99.90,  -0.14,
07/19 02Z,   0.50,   6.10,   6.20,  99.90,  -0.40,
07/19 03Z,   0.50,   5.00,   5.04,  99.90,  -0.46,
07/19 04Z,   0.50,   3.90,   3.90,  99.90,  -0.50,
07/19 05Z,   0.50,   2.88,   2.76,  99.90,  -0.62,
07/19 06Z,   0.50,   1.95,   1.70,  99.90,  -0.75,
07/19 07Z,   0.50,   1.15,   0.76,  99.90,  -0.89,
07/19 08Z,   0.50,   0.95,   0.57,  99.90,  -0.88,  (min)
07/19 09Z,   0.50,   1.95,   1.56,  99.90,  -0.89,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/19 10Z,   0.60,   3.58,  99.90,   3.35,  -0.84,
07/19 11Z,   0.60,   4.83,  99.90,   4.65,  -0.78,
07/19 12Z,   0.60,   5.63,  99.90,   5.50,  -0.72,
07/19 13Z,   0.60,   6.04,  99.90,   5.97,  -0.67,  (max)
07/19 14Z,   0.60,   5.68,  99.90,   5.67,  -0.61,
07/19 15Z,   0.60,   4.66,  99.90,   4.70,  -0.55,
07/19 16Z,   0.60,   3.48,  99.90,   3.58,  -0.50,
07/19 17Z,   0.60,   2.41,  99.90,   2.57,  -0.44,
07/19 18Z,   0.60,   1.52,  99.90,   1.74,  -0.39,
07/19 19Z,   0.60,   0.82,  99.90,   1.09,  -0.33,
07/19 20Z,   0.60,   0.55,  99.90,   0.87,  -0.27,  (min)
07/19 21Z,   0.70,   1.34,  99.90,   1.82,  -0.22,
07/19 22Z,   0.70,   3.15,  99.90,   3.63,  -0.22,
07/19 23Z,   0.70,   4.89,  99.90,   5.38,  -0.22,
07/20 00Z,   0.70,   6.04,  99.90,   6.52,  -0.22,
07/20 01Z,   0.70,   6.78,  99.90,   7.27,  -0.22,
07/20 02Z,   0.70,   6.90,  99.90,   7.38,  -0.22,  (max)
07/20 03Z,   0.70,   6.21,  99.90,   6.70,  -0.22,
07/20 04Z,   0.70,   5.17,  99.90,   5.65,  -0.22,
07/20 05Z,   0.70,   4.13,  99.90,   4.61,  -0.22,
07/20 06Z,   0.70,   3.14,  99.90,   3.62,  -0.22,
07/20 07Z,   0.70,   2.15,  99.90,   2.63,  -0.22,
07/20 08Z,   0.70,   1.21,  99.90,   1.69,  -0.22,
07/20 09Z,   0.70,   0.93,  99.90,   1.41,  -0.22,  (min)
07/20 10Z,   0.70,   1.85,  99.90,   2.33,  -0.22,
07/20 11Z,   0.70,   3.33,  99.90,   3.82,  -0.22,
07/20 12Z,   0.70,   4.51,  99.90,   5.00,  -0.22,
07/20 13Z,   0.70,   5.39,  99.90,   5.87,  -0.22,
07/20 14Z,   0.70,   5.88,  99.90,   6.36,  -0.22,  (max)
07/20 15Z,   0.70,   5.55,  99.90,   6.03,  -0.22,
07/20 16Z,   0.70,   4.57,  99.90,   5.06,  -0.22,
07/20 17Z,   0.70,   3.48,  99.90,   3.96,  -0.22,
07/20 18Z,   0.70,   2.49,  99.90,   2.98,  -0.22,
07/20 19Z,   0.70,   1.64,  99.90,   2.13,  -0.22,
07/20 20Z,   0.70,   0.92,  99.90,   1.40,  -0.22,
07/20 21Z,   0.70,   0.63,  99.90,   1.11,  -0.22,  (min)
07/20 22Z,   0.70,   1.47,  99.90,   1.95,  -0.22,
07/20 23Z,   0.70,   3.25,  99.90,   3.73,  -0.22,
07/21 00Z,   0.70,   4.91,  99.90,   5.39,  -0.22,
07/21 01Z,   0.70,   6.08,  99.90,   6.56,  -0.22,
07/21 02Z,   0.70,   6.89,  99.90,   7.38,  -0.22,
07/21 03Z,   0.70,   7.01,  99.90,   7.49,  -0.22,  (max)
07/21 04Z,   0.70,   6.33,  99.90,   6.81,  -0.22,
07/21 05Z,   0.70,   5.35,  99.90,   5.83,  -0.22,
07/21 06Z,   0.70,   4.38,  99.90,   4.86,  -0.22,
07/21 07Z,   0.70,   3.39,  99.90,   3.88,  -0.22,
07/21 08Z,   0.70,   2.30,  99.90,   2.79,  -0.22,
07/21 09Z,   0.70,   1.21,  99.90,   1.69,  -0.22,
07/21 10Z,   0.70,   0.85,  99.90,   1.33,  -0.22,  (min)
07/21 11Z,   0.60,   1.71,  99.90,   2.10,  -0.22,
07/21 12Z,   0.60,   3.10,  99.90,   3.48,  -0.22,
07/21 13Z,   0.60,   4.27,  99.90,   4.65,  -0.22,
07/21 14Z,   0.60,   5.26,  99.90,   5.64,  -0.22,
07/21 15Z,   0.60,   5.82,  99.90,   6.20,  -0.22,  (max)
07/21 16Z,   0.60,   5.49,  99.90,   5.87,  -0.22,
07/21 17Z,   0.60,   4.57,  99.90,   4.95,  -0.22,
07/21 18Z,   0.60,   3.56,  99.90,   3.94,  -0.22,
07/21 19Z,   0.60,   2.63,  99.90,   3.02,  -0.22,
07/21 20Z,   0.60,   1.78,  99.90,   2.17,  -0.22,
07/21 21Z,   0.60,   0.99,  99.90,   1.37,  -0.22,
07/21 22Z,   0.60,   0.68,  99.90,   1.06,  -0.22,  (min)
07/21 23Z,   0.60,   1.56,  99.90,   1.94,  -0.22,
07/22 00Z,   0.60,   3.30,  99.90,   3.69,  -0.22,
07/22 01Z,   0.60,   4.90,  99.90,   5.29,  -0.22,
07/22 02Z,   0.60,   6.13,  99.90,   6.51,  -0.22,
07/22 03Z,   0.60,   7.00,  99.90,   7.38,  -0.22,
07/22 04Z,   0.60,   7.09,  99.90,   7.47,  -0.22,  (max)
07/22 05Z,   0.60,   6.41,  99.90,   6.80,  -0.22,
07/22 06Z,   0.60,   5.50,  99.90,   5.89,  -0.22,
07/22 07Z,   0.60,   4.58,  99.90,   4.96,  -0.22,
07/22 08Z,   0.60,   3.58,  99.90,   3.96,  -0.22,
07/22 09Z,   0.60,   2.36,  99.90,   2.74,  -0.22,
07/22 10Z,   0.60,   1.12,  99.90,   1.51,  -0.22,
07/22 11Z,   0.60,   0.74,  99.90,   1.12,  -0.22,  (min)
07/22 12Z,   0.70,   1.60,  99.90,   2.09,  -0.22,
07/22 13Z,   0.70,   2.94,  99.90,   3.43,  -0.22,
07/22 14Z,   0.70,   4.16,  99.90,   4.64,  -0.22,
07/22 15Z,   0.70,   5.26,  99.90,   5.74,  -0.22,
07/22 16Z,   0.70,   5.83,  99.90,   6.31,  -0.22,  (max)
07/22 17Z,   0.70,   5.48,  99.90,   5.97,  -0.22,
07/22 18Z,   0.70,   4.61,  99.90,   5.09,  -0.22,
07/22 19Z,   0.70,   3.67,  99.90,   4.15,  -0.22,
07/22 20Z,   0.70,   2.77,  99.90,   3.26,  -0.22,
07/22 21Z,   0.70,   1.88,  99.90,   2.37,  -0.22,
07/22 22Z,   0.70,   1.00,  99.90,   1.48,  -0.22,
07/22 23Z,   0.80,   0.69,  99.90,   1.28,  -0.22,  (min)
07/23 00Z,   0.80,   1.64,  99.90,   2.23,  -0.22,
07/23 01Z,  99.90,   3.37,  99.90,  99.90,  -0.22,
07/23 02Z,  99.90,   4.94,  99.90,  99.90,  -0.22,
07/23 03Z,  99.90,   6.21,  99.90,  99.90,  -0.22,
07/23 04Z,  99.90,   7.08,  99.90,  99.90,  -0.22,
07/23 05Z,  99.90,   7.12,  99.90,  99.90,  -0.22,
07/23 06Z,  99.90,   6.44,  99.90,  99.90,  -0.22,