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 : 12/15/2025 01:22:22 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/13 06Z,  -0.50,  -7.01,  -7.58,  99.90,  -0.07,
12/13 07Z,  -0.50,  -8.02,  -8.52,  99.90,  -0.00,
12/13 08Z,  -0.50,  -8.14,  -9.11,  99.90,  -0.47,  (min)
12/13 09Z,  -0.50,  -7.17,  -8.02,  99.90,  -0.35,
12/13 10Z,  -0.50,  -5.89,  -6.37,  99.90,   0.02,
12/13 11Z,  -0.50,  -4.71,  -5.08,  99.90,   0.13,
12/13 12Z,  -0.50,  -3.48,  -3.92,  99.90,   0.06,
12/13 13Z,  -0.50,  -2.65,  -2.96,  99.90,   0.19,
12/13 14Z,  -0.50,  -2.71,  -2.66,  99.90,   0.55,  (max)
12/13 15Z,  -0.50,  -3.39,  -3.31,  99.90,   0.58,
12/13 16Z,  -0.50,  -4.31,  -4.32,  99.90,   0.49,
12/13 17Z,  -0.50,  -5.32,  -5.26,  99.90,   0.56,
12/13 18Z,  -0.40,  -6.38,  -6.23,  99.90,   0.55,
12/13 19Z,  -0.40,  -7.45,  -7.24,  99.90,   0.61,
12/13 20Z,  -0.40,  -7.99,  -8.07,  99.90,   0.32,
12/13 21Z,  -0.40,  -7.42,  -8.27,  99.90,  -0.45,  (min)
12/13 22Z,  -0.40,  -6.23,  -6.95,  99.90,  -0.32,
12/13 23Z,  -0.40,  -5.11,  -5.62,  99.90,  -0.11,
12/14 00Z,  -0.30,  -3.99,  -4.51,  99.90,  -0.22,
12/14 01Z,  -0.30,  -2.98,  -3.65,  99.90,  -0.37,
12/14 02Z,  -0.30,  -2.72,  -3.07,  99.90,  -0.05,  (max)
12/14 03Z,  -0.40,  -3.24,  -3.37,  99.90,   0.27,
12/14 04Z,  -0.40,  -4.11,  -4.29,  99.90,   0.22,
12/14 05Z,  -0.40,  -5.10,  -5.32,  99.90,   0.18,
12/14 06Z,  -0.30,  -6.14,  -6.32,  99.90,   0.12,
12/14 07Z,  -0.30,  -7.25,  -7.33,  99.90,   0.22,
12/14 08Z,  -0.30,  -8.13,  -8.23,  99.90,   0.20,
12/14 09Z,  -0.20,  -8.05,  -8.43,  99.90,  -0.18,  (min)
12/14 10Z,  -0.20,  -6.97,  -6.62,  99.90,   0.55,
12/14 11Z,  -0.20,  -5.71,  -5.09,  99.90,   0.82,
12/14 12Z,   0.00,  -4.48,  -3.82,  99.90,   0.66,
12/14 13Z,   0.00,  -3.21,  -2.76,  99.90,   0.45,
12/14 14Z,   0.00,  -2.45,  -2.00,  99.90,   0.45,  (max)
12/14 15Z,   0.00,  -2.61,  -2.08,  99.90,   0.53,
12/14 16Z,   0.00,  -3.35,  -2.99,  99.90,   0.36,
12/14 17Z,   0.00,  -4.31,  -4.11,  99.90,   0.20,
12/14 18Z,   0.10,  -5.34,  -5.15,  99.90,   0.09,
12/14 19Z,   0.10,  -6.45,  -6.23,  99.90,   0.12,
12/14 20Z,   0.00,  -7.56,  -7.29,  99.90,   0.27,
12/14 21Z,   0.00,  -8.05,  -8.20,  99.90,  -0.15,
12/14 22Z,   0.00,  -7.44,  -8.77,  99.90,  -1.33,  (min)
12/14 23Z,   0.00,  -6.30,  -8.31,  99.90,  -2.01,
12/15 00Z,  -0.10,  -5.21,  -7.13,  99.90,  -1.82,
12/15 01Z,  -0.10,  -4.01,  -6.13,  99.90,  -2.02,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/15 02Z,  -0.20,  -3.00,  99.90,  -5.06,  -1.86,
12/15 03Z,  -0.20,  -2.82,  99.90,  -4.72,  -1.70,  (max)
12/15 04Z,  -0.30,  -3.42,  99.90,  -5.26,  -1.54,
12/15 05Z,  -0.30,  -4.33,  99.90,  -6.01,  -1.38,
12/15 06Z,  -0.40,  -5.35,  99.90,  -6.97,  -1.22,
12/15 07Z,  -0.40,  -6.39,  99.90,  -7.85,  -1.06,
12/15 08Z,  -0.50,  -7.46,  99.90,  -8.86,  -0.90,
12/15 09Z,  -0.50,  -8.21,  99.90,  -9.45,  -0.73,  (min)
12/15 10Z,  -0.50,  -7.91,  99.90,  -8.98,  -0.57,
12/15 11Z,  -0.50,  -6.72,  99.90,  -7.63,  -0.41,
12/15 12Z,  -0.50,  -5.44,  99.90,  -6.19,  -0.25,
12/15 13Z,  -0.50,  -4.16,  99.90,  -4.75,  -0.09,
12/15 14Z,  -0.40,  -2.89,  99.90,  -3.38,  -0.09,
12/15 15Z,  -0.40,  -2.26,  99.90,  -2.75,  -0.09,  (max)
12/15 16Z,  -0.40,  -2.55,  99.90,  -3.04,  -0.09,
12/15 17Z,  -0.40,  -3.36,  99.90,  -3.85,  -0.09,
12/15 18Z,  -0.30,  -4.36,  99.90,  -4.75,  -0.09,
12/15 19Z,  -0.20,  -5.42,  99.90,  -5.71,  -0.09,
12/15 20Z,  -0.20,  -6.59,  99.90,  -6.88,  -0.09,
12/15 21Z,  -0.10,  -7.72,  99.90,  -7.91,  -0.09,
12/15 22Z,  -0.10,  -8.13,  99.90,  -8.32,  -0.09,  (min)
12/15 23Z,   0.00,  -7.44,  99.90,  -7.53,  -0.09,
12/16 00Z,   0.00,  -6.31,  99.90,  -6.40,  -0.09,
12/16 01Z,   0.00,  -5.18,  99.90,  -5.27,  -0.09,
12/16 02Z,   0.00,  -3.92,  99.90,  -4.01,  -0.09,
12/16 03Z,   0.00,  -2.96,  99.90,  -3.06,  -0.09,
12/16 04Z,   0.10,  -2.92,  99.90,  -2.91,  -0.09,  (max)
12/16 05Z,   0.10,  -3.61,  99.90,  -3.60,  -0.09,
12/16 06Z,   0.10,  -4.57,  99.90,  -4.56,  -0.09,
12/16 07Z,   0.10,  -5.60,  99.90,  -5.59,  -0.09,
12/16 08Z,   0.10,  -6.64,  99.90,  -6.63,  -0.09,
12/16 09Z,   0.10,  -7.67,  99.90,  -7.66,  -0.09,
12/16 10Z,   0.10,  -8.24,  99.90,  -8.23,  -0.09,  (min)
12/16 11Z,   0.10,  -7.69,  99.90,  -7.68,  -0.09,
12/16 12Z,   0.20,  -6.38,  99.90,  -6.27,  -0.09,
12/16 13Z,   0.10,  -5.07,  99.90,  -5.06,  -0.09,
12/16 14Z,   0.10,  -3.77,  99.90,  -3.76,  -0.09,
12/16 15Z,   0.10,  -2.56,  99.90,  -2.55,  -0.09,
12/16 16Z,   0.10,  -2.12,  99.90,  -2.11,  -0.09,  (max)
12/16 17Z,   0.00,  -2.57,  99.90,  -2.66,  -0.09,
12/16 18Z,   0.00,  -3.45,  99.90,  -3.54,  -0.09,
12/16 19Z,   0.00,  -4.48,  99.90,  -4.57,  -0.09,
12/16 20Z,   0.00,  -5.58,  99.90,  -5.67,  -0.09,
12/16 21Z,   0.00,  -6.80,  99.90,  -6.89,  -0.09,
12/16 22Z,   0.00,  -7.91,  99.90,  -8.01,  -0.09,
12/16 23Z,   0.00,  -8.17,  99.90,  -8.26,  -0.09,  (min)
12/17 00Z,   0.00,  -7.35,  99.90,  -7.44,  -0.09,
12/17 01Z,   0.00,  -6.20,  99.90,  -6.29,  -0.09,
12/17 02Z,   0.00,  -5.03,  99.90,  -5.12,  -0.09,
12/17 03Z,   0.00,  -3.75,  99.90,  -3.84,  -0.09,
12/17 04Z,   0.10,  -2.93,  99.90,  -2.92,  -0.09,  (max)
12/17 05Z,   0.10,  -3.06,  99.90,  -3.05,  -0.09,
12/17 06Z,   0.10,  -3.84,  99.90,  -3.83,  -0.09,
12/17 07Z,   0.10,  -4.84,  99.90,  -4.83,  -0.09,
12/17 08Z,   0.10,  -5.88,  99.90,  -5.87,  -0.09,
12/17 09Z,   0.10,  -6.90,  99.90,  -6.89,  -0.09,
12/17 10Z,   0.10,  -7.85,  99.90,  -7.85,  -0.09,
12/17 11Z,   0.10,  -8.19,  99.90,  -8.18,  -0.09,  (min)
12/17 12Z,   0.10,  -7.37,  99.90,  -7.36,  -0.09,
12/17 13Z,   0.10,  -5.94,  99.90,  -5.93,  -0.09,
12/17 14Z,   0.10,  -4.62,  99.90,  -4.61,  -0.09,
12/17 15Z,   0.00,  -3.34,  99.90,  -3.43,  -0.09,
12/17 16Z,   0.00,  -2.29,  99.90,  -2.38,  -0.09,
12/17 17Z,   0.00,  -2.09,  99.90,  -2.18,  -0.09,  (max)
12/17 18Z,   0.00,  -2.69,  99.90,  -2.78,  -0.09,
12/17 19Z,   0.00,  -3.63,  99.90,  -3.72,  -0.09,
12/17 20Z,   0.00,  -4.69,  99.90,  -4.78,  -0.09,
12/17 21Z,   0.00,  -5.81,  99.90,  -5.90,  -0.09,
12/17 22Z,  -0.10,  -7.05,  99.90,  -7.25,  -0.09,
12/17 23Z,  -0.10,  -8.09,  99.90,  -8.28,  -0.09,
12/18 00Z,  -0.10,  -8.12,  99.90,  -8.31,  -0.09,  (min)
12/18 01Z,  -0.20,  -7.14,  99.90,  -7.44,  -0.09,
12/18 02Z,  -0.20,  -5.96,  99.90,  -6.25,  -0.09,
12/18 03Z,  -0.20,  -4.77,  99.90,  -5.06,  -0.09,
12/18 04Z,  -0.30,  -3.55,  99.90,  -3.94,  -0.09,
12/18 05Z,  -0.30,  -2.93,  99.90,  -3.32,  -0.09,  (max)
12/18 06Z,  -0.30,  -3.26,  99.90,  -3.65,  -0.09,
12/18 07Z,  -0.40,  -4.13,  99.90,  -4.62,  -0.09,
12/18 08Z,  -0.40,  -5.17,  99.90,  -5.66,  -0.09,
12/18 09Z,  -0.40,  -6.19,  99.90,  -6.68,  -0.09,
12/18 10Z,  -0.50,  -7.18,  99.90,  -7.77,  -0.09,
12/18 11Z,  -0.50,  -8.01,  99.90,  -8.60,  -0.09,
12/18 12Z,  -0.50,  -8.05,  99.90,  -8.64,  -0.09,  (min)
12/18 13Z,  -0.50,  -6.94,  99.90,  -7.53,  -0.09,
12/18 14Z,  -0.50,  -5.42,  99.90,  -6.01,  -0.09,
12/18 15Z,  -0.50,  -4.11,  99.90,  -4.71,  -0.09,
12/18 16Z,  -0.50,  -2.92,  99.90,  -3.51,  -0.09,
12/18 17Z,  -0.40,  -2.10,  99.90,  -2.59,  -0.09,  (max)
12/18 18Z,  -0.40,  -2.17,  99.90,  -2.66,  -0.09,