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
Ketchikan, AK
Sitka, AK
Juneau, AK
Skagway, AK
Elfin Cove, AK
Yakutat, AK
Cordova, AK
Valdez, AK
Seward, AK
Seldovia, AK
Nikiski, AK
Anchorage, AK
Kodiak Island, AK
Alitak, AK
Sand Point, AK
King Cove, AK
Adak Island, AK
Atka, AK
Unalaska, AK
Surge List
Gulf of Alaska
#Philadelphia, PA : 11/07/2025 19:21:43 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
11/06 00Z,   0.00,   0.87,   1.12,  99.90,   0.25,
11/06 01Z,   0.00,   0.24,   0.24,  99.90,  -0.00,  (min)
11/06 02Z,   0.00,   0.98,   0.67,  99.90,  -0.31,
11/06 03Z,   0.00,   2.79,   2.85,  99.90,   0.06,
11/06 04Z,   0.00,   4.52,   4.33,  99.90,  -0.19,
11/06 05Z,   0.00,   5.74,   5.35,  99.90,  -0.39,
11/06 06Z,   0.00,   6.45,   5.87,  99.90,  -0.58,  (max)
11/06 07Z,   0.00,   6.29,   5.45,  99.90,  -0.84,
11/06 08Z,   0.00,   5.30,   4.34,  99.90,  -0.96,
11/06 09Z,  -0.10,   4.07,   3.18,  99.90,  -0.79,
11/06 10Z,  -0.20,   2.92,   2.12,  99.90,  -0.60,
11/06 11Z,  -0.30,   1.86,   1.03,  99.90,  -0.53,
11/06 12Z,  -0.30,   0.89,  -0.08,  99.90,  -0.67,
11/06 13Z,  -0.30,   0.29,  -0.94,  99.90,  -0.93,
11/06 14Z,  -0.40,   0.81,  -1.70,  99.90,  -2.11,  (min)
11/06 15Z,  -0.40,   2.68,  -0.24,  99.90,  -2.52,
11/06 16Z,  -0.50,   4.82,   1.89,  99.90,  -2.43,
11/06 17Z,  -0.60,   6.34,   3.53,  99.90,  -2.21,
11/06 18Z,  -0.70,   7.26,   4.82,  99.90,  -1.74,
11/06 19Z,  -0.70,   7.43,   5.64,  99.90,  -1.09,  (max)
11/06 20Z,  -0.80,   6.68,   5.33,  99.90,  -0.55,
11/06 21Z,  -0.80,   5.51,   4.04,  99.90,  -0.67,
11/06 22Z,  -0.80,   4.35,   2.89,  99.90,  -0.66,
11/06 23Z,  -0.80,   3.21,   1.84,  99.90,  -0.57,
11/07 00Z,  -1.00,   2.00,   0.73,  99.90,  -0.27,
11/07 01Z,  -1.00,   0.80,  -0.35,  99.90,  -0.15,
11/07 02Z,  -1.00,   0.27,  -1.24,  99.90,  -0.51,  (min)
11/07 03Z,  -0.90,   1.16,  -0.27,  99.90,  -0.53,
11/07 04Z,  -0.90,   2.97,   1.99,  99.90,  -0.08,
11/07 05Z,  -0.90,   4.59,   3.47,  99.90,  -0.22,
11/07 06Z,  -1.00,   5.70,   4.68,  99.90,  -0.02,
11/07 07Z,  -0.90,   6.29,   5.49,  99.90,   0.10,  (max)
11/07 08Z,  -0.90,   5.99,   5.45,  99.90,   0.36,
11/07 09Z,  -0.80,   4.97,   4.36,  99.90,   0.19,
11/07 10Z,  -0.80,   3.81,   3.16,  99.90,   0.15,
11/07 11Z,  -0.80,   2.72,   2.13,  99.90,   0.21,
11/07 12Z,  -0.60,   1.71,   1.06,  99.90,  -0.05,
11/07 13Z,  -0.60,   0.79,   0.10,  99.90,  -0.09,
11/07 14Z,  -0.50,   0.31,  -0.59,  99.90,  -0.40,  (min)
11/07 15Z,  -0.50,   1.07,   1.62,  99.90,   1.05,
11/07 16Z,  -0.40,   3.07,   3.57,  99.90,   0.90,
11/07 17Z,  -0.40,   5.11,   5.19,  99.90,   0.48,
11/07 18Z,  -0.30,   6.49,   6.52,  99.90,   0.33,
11/07 19Z,  -0.30,   7.28,   7.59,  99.90,   0.61,  (max)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
11/07 20Z,  -0.30,   7.29,  99.90,   7.53,   0.54,
11/07 21Z,  -0.20,   6.48,  99.90,   6.73,   0.46,
11/07 22Z,  -0.20,   5.36,  99.90,   5.54,   0.38,
11/07 23Z,  -0.10,   4.28,  99.90,   4.48,   0.30,
11/08 00Z,  -0.10,   3.18,  99.90,   3.30,   0.22,
11/08 01Z,  -0.10,   1.97,  99.90,   2.00,   0.14,
11/08 02Z,  -0.10,   0.77,  99.90,   0.73,   0.06,
11/08 03Z,  -0.10,   0.36,  99.90,   0.24,  -0.02,  (min)
11/08 04Z,   0.00,   1.37,  99.90,   1.28,  -0.10,
11/08 05Z,   0.00,   3.13,  99.90,   2.95,  -0.18,
11/08 06Z,   0.00,   4.59,  99.90,   4.33,  -0.26,
11/08 07Z,   0.00,   5.60,  99.90,   5.27,  -0.33,
11/08 08Z,   0.00,   6.09,  99.90,   5.76,  -0.33,  (max)
11/08 09Z,  -0.10,   5.70,  99.90,   5.26,  -0.33,
11/08 10Z,  -0.10,   4.70,  99.90,   4.26,  -0.33,
11/08 11Z,  -0.10,   3.61,  99.90,   3.18,  -0.33,
11/08 12Z,  -0.20,   2.59,  99.90,   2.05,  -0.33,
11/08 13Z,  -0.20,   1.61,  99.90,   1.08,  -0.33,
11/08 14Z,  -0.20,   0.73,  99.90,   0.20,  -0.33,
11/08 15Z,  -0.30,   0.38,  99.90,  -0.25,  -0.33,  (min)
11/08 16Z,  -0.30,   1.34,  99.90,   0.70,  -0.33,
11/08 17Z,  -0.40,   3.37,  99.90,   2.63,  -0.33,
11/08 18Z,  -0.40,   5.24,  99.90,   4.51,  -0.33,
11/08 19Z,  -0.40,   6.46,  99.90,   5.73,  -0.33,
11/08 20Z,  -0.40,   7.14,  99.90,   6.40,  -0.33,  (max)
11/08 21Z,  -0.40,   7.06,  99.90,   6.32,  -0.33,
11/08 22Z,  -0.40,   6.24,  99.90,   5.50,  -0.33,
11/08 23Z,  -0.40,   5.22,  99.90,   4.48,  -0.33,
11/09 00Z,  -0.40,   4.22,  99.90,   3.49,  -0.33,
11/09 01Z,  -0.40,   3.15,  99.90,   2.42,  -0.33,
11/09 02Z,  -0.40,   1.92,  99.90,   1.19,  -0.33,
11/09 03Z,  -0.40,   0.75,  99.90,   0.02,  -0.33,
11/09 04Z,  -0.40,   0.48,  99.90,  -0.26,  -0.33,  (min)
11/09 05Z,  -0.40,   1.58,  99.90,   0.84,  -0.33,
11/09 06Z,  -0.30,   3.22,  99.90,   2.59,  -0.33,
11/09 07Z,  -0.30,   4.52,  99.90,   3.89,  -0.33,
11/09 08Z,  -0.30,   5.46,  99.90,   4.83,  -0.33,
11/09 09Z,  -0.30,   5.88,  99.90,   5.25,  -0.33,  (max)
11/09 10Z,  -0.30,   5.46,  99.90,   4.82,  -0.33,
11/09 11Z,  -0.30,   4.51,  99.90,   3.87,  -0.33,
11/09 12Z,  -0.30,   3.50,  99.90,   2.87,  -0.33,
11/09 13Z,  -0.30,   2.52,  99.90,   1.89,  -0.33,
11/09 14Z,  -0.20,   1.57,  99.90,   1.04,  -0.33,
11/09 15Z,  -0.20,   0.72,  99.90,   0.19,  -0.33,
11/09 16Z,  -0.20,   0.49,  99.90,  -0.05,  -0.33,  (min)
11/09 17Z,  -0.20,   1.58,  99.90,   1.04,  -0.33,
11/09 18Z,  -0.10,   3.54,  99.90,   3.11,  -0.33,
11/09 19Z,  -0.10,   5.21,  99.90,   4.77,  -0.33,
11/09 20Z,   0.00,   6.29,  99.90,   5.95,  -0.33,
11/09 21Z,   0.00,   6.90,  99.90,   6.57,  -0.33,  (max)
11/09 22Z,   0.00,   6.78,  99.90,   6.45,  -0.33,
11/09 23Z,   0.00,   6.01,  99.90,   5.68,  -0.33,
11/10 00Z,   0.00,   5.09,  99.90,   4.76,  -0.33,
11/10 01Z,   0.00,   4.16,  99.90,   3.82,  -0.33,
11/10 02Z,   0.00,   3.10,  99.90,   2.77,  -0.33,
11/10 03Z,   0.00,   1.87,  99.90,   1.53,  -0.33,
11/10 04Z,   0.00,   0.74,  99.90,   0.41,  -0.33,
11/10 05Z,  -0.10,   0.59,  99.90,   0.16,  -0.33,  (min)
11/10 06Z,  -0.10,   1.74,  99.90,   1.30,  -0.33,
11/10 07Z,  -0.10,   3.24,  99.90,   2.80,  -0.33,
11/10 08Z,  -0.10,   4.41,  99.90,   3.97,  -0.33,
11/10 09Z,  -0.20,   5.32,  99.90,   4.79,  -0.33,
11/10 10Z,  -0.20,   5.72,  99.90,   5.19,  -0.33,  (max)
11/10 11Z,  -0.20,   5.30,  99.90,   4.76,  -0.33,
11/10 12Z,  -0.20,   4.42,  99.90,   3.89,  -0.33,
11/10 13Z,  -0.30,   3.48,  99.90,   2.84,  -0.33,
11/10 14Z,  -0.30,   2.53,  99.90,   1.89,  -0.33,
11/10 15Z,  -0.30,   1.58,  99.90,   0.95,  -0.33,
11/10 16Z,  -0.30,   0.74,  99.90,   0.11,  -0.33,
11/10 17Z,  -0.30,   0.60,  99.90,  -0.03,  -0.33,  (min)
11/10 18Z,  -0.30,   1.76,  99.90,   1.12,  -0.33,
11/10 19Z,  -0.30,   3.58,  99.90,   2.95,  -0.33,
11/10 20Z,  -0.30,   5.04,  99.90,   4.40,  -0.33,
11/10 21Z,  -0.30,   6.03,  99.90,   5.40,  -0.33,
11/10 22Z,  -0.30,   6.64,  99.90,   6.00,  -0.33,  (max)
11/10 23Z,  -0.30,   6.52,  99.90,   5.89,  -0.33,
11/11 00Z,  -0.30,   5.82,  99.90,   5.19,  -0.33,
11/11 01Z,  -0.30,   4.99,  99.90,   4.35,  -0.33,
11/11 02Z,  -0.30,   4.09,  99.90,   3.45,  -0.33,
11/11 03Z,  -0.40,   3.03,  99.90,   2.30,  -0.33,
11/11 04Z,  -0.40,   1.78,  99.90,   1.05,  -0.33,
11/11 05Z,  -0.40,   0.71,  99.90,  -0.03,  -0.33,
11/11 06Z,  -0.40,   0.68,  99.90,  -0.05,  -0.33,  (min)
11/11 07Z,  -0.50,   1.82,  99.90,   0.99,  -0.33,
11/11 08Z,  -0.50,   3.18,  99.90,   2.34,  -0.33,
11/11 09Z,  -0.50,   4.27,  99.90,   3.44,  -0.33,
11/11 10Z,  -0.60,   5.22,  99.90,   4.28,  -0.33,
11/11 11Z,  -0.60,   5.63,  99.90,   4.70,  -0.33,  (max)
11/11 12Z,  -0.60,   5.24,  99.90,   4.31,  -0.33,