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
#Port Chicago, CA : 07/10/2025 12:20:52 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/08 12Z,   0.00,   1.76,   1.84,  99.90,   0.08,
07/08 13Z,   0.00,   0.90,   1.22,  99.90,   0.32,
07/08 14Z,   0.00,   0.17,   0.62,  99.90,   0.45,
07/08 15Z,   0.00,  -0.24,   0.23,  99.90,   0.47,
07/08 16Z,   0.00,  -0.17,   0.18,  99.90,   0.35,  (min)
07/08 17Z,   0.00,   0.40,   0.78,  99.90,   0.38,
07/08 18Z,   0.00,   1.28,   1.83,  99.90,   0.55,
07/08 19Z,   0.00,   2.25,   2.81,  99.90,   0.56,
07/08 20Z,   0.00,   3.13,   3.51,  99.90,   0.38,
07/08 21Z,   0.00,   3.70,   3.85,  99.90,   0.15,
07/08 22Z,   0.00,   3.82,   3.88,  99.90,   0.06,  (max)
07/08 23Z,   0.00,   3.56,   3.68,  99.90,   0.12,
07/09 00Z,   0.10,   3.16,   3.31,  99.90,   0.05,
07/09 01Z,   0.10,   2.85,   2.88,  99.90,  -0.07,
07/09 02Z,   0.10,   2.73,   2.72,  99.90,  -0.11,  (min)
07/09 03Z,   0.10,   2.90,   3.02,  99.90,   0.02,
07/09 04Z,   0.10,   3.43,   3.69,  99.90,   0.16,
07/09 05Z,   0.10,   4.23,   4.44,  99.90,   0.11,
07/09 06Z,   0.10,   4.98,   5.04,  99.90,  -0.04,
07/09 07Z,   0.10,   5.42,   5.36,  99.90,  -0.16,
07/09 08Z,   0.10,   5.46,   5.37,  99.90,  -0.19,  (max)
07/09 09Z,   0.10,   5.10,   4.96,  99.90,  -0.24,
07/09 10Z,   0.10,   4.38,   4.01,  99.90,  -0.47,
07/09 11Z,   0.10,   3.39,   2.92,  99.90,  -0.57,
07/09 12Z,   0.00,   2.34,   2.02,  99.90,  -0.32,
07/09 13Z,   0.00,   1.38,   1.33,  99.90,  -0.05,
07/09 14Z,   0.00,   0.56,   0.68,  99.90,   0.12,
07/09 15Z,   0.00,  -0.08,   0.14,  99.90,   0.22,
07/09 16Z,   0.00,  -0.34,  -0.17,  99.90,   0.17,  (min)
07/09 17Z,   0.00,  -0.08,   0.04,  99.90,   0.12,
07/09 18Z,   0.00,   0.66,   0.95,  99.90,   0.29,
07/09 19Z,   0.00,   1.64,   2.08,  99.90,   0.44,
07/09 20Z,   0.00,   2.63,   3.03,  99.90,   0.40,
07/09 21Z,   0.00,   3.45,   3.61,  99.90,   0.16,
07/09 22Z,   0.00,   3.92,   3.87,  99.90,  -0.05,  (max)
07/09 23Z,   0.00,   3.92,   3.85,  99.90,  -0.07,
07/10 00Z,   0.10,   3.58,   3.58,  99.90,  -0.10,
07/10 01Z,   0.10,   3.15,   3.06,  99.90,  -0.19,
07/10 02Z,   0.10,   2.83,   2.64,  99.90,  -0.29,
07/10 03Z,   0.10,   2.75,   2.59,  99.90,  -0.26,  (min)
07/10 04Z,   0.10,   2.99,   3.05,  99.90,  -0.04,
07/10 05Z,   0.10,   3.62,   3.82,  99.90,   0.10,
07/10 06Z,   0.10,   4.47,   4.58,  99.90,   0.01,
07/10 07Z,   0.10,   5.21,   5.16,  99.90,  -0.15,
07/10 08Z,   0.10,   5.55,   5.40,  99.90,  -0.25,  (max)
07/10 09Z,   0.10,   5.45,   5.33,  99.90,  -0.22,
07/10 10Z,   0.10,   4.94,   4.75,  99.90,  -0.29,
07/10 11Z,   0.10,   4.07,   3.67,  99.90,  -0.50,
07/10 12Z,   0.10,   2.99,   2.60,  99.90,  -0.49,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/10 13Z,   0.10,   1.91,  99.90,   1.57,  -0.44,
07/10 14Z,   0.10,   0.97,  99.90,   0.68,  -0.39,
07/10 15Z,   0.10,   0.21,  99.90,  -0.04,  -0.34,
07/10 16Z,   0.10,  -0.30,  99.90,  -0.49,  -0.29,
07/10 17Z,   0.10,  -0.36,  99.90,  -0.50,  -0.24,  (min)
07/10 18Z,   0.10,   0.12,  99.90,   0.03,  -0.19,
07/10 19Z,   0.10,   1.02,  99.90,   0.98,  -0.14,
07/10 20Z,   0.10,   2.06,  99.90,   2.07,  -0.10,
07/10 21Z,   0.10,   3.02,  99.90,   3.08,  -0.05,
07/10 22Z,   0.10,   3.74,  99.90,   3.84,   0.00,
07/10 23Z,   0.10,   4.05,  99.90,   4.20,   0.05,  (max)
07/11 00Z,   0.10,   3.91,  99.90,   4.11,   0.10,
07/11 01Z,   0.10,   3.47,  99.90,   3.67,   0.10,
07/11 02Z,   0.10,   3.00,  99.90,   3.21,   0.10,
07/11 03Z,   0.10,   2.70,  99.90,   2.90,   0.10,
07/11 04Z,   0.10,   2.66,  99.90,   2.86,   0.10,  (min)
07/11 05Z,   0.10,   3.00,  99.90,   3.21,   0.10,
07/11 06Z,   0.10,   3.74,  99.90,   3.94,   0.10,
07/11 07Z,   0.10,   4.64,  99.90,   4.84,   0.10,
07/11 08Z,   0.10,   5.33,  99.90,   5.54,   0.10,
07/11 09Z,   0.10,   5.58,  99.90,   5.78,   0.10,  (max)
07/11 10Z,   0.10,   5.34,  99.90,   5.54,   0.10,
07/11 11Z,   0.10,   4.68,  99.90,   4.88,   0.10,
07/11 12Z,   0.10,   3.69,  99.90,   3.89,   0.10,
07/11 13Z,   0.10,   2.53,  99.90,   2.73,   0.10,
07/11 14Z,   0.10,   1.43,  99.90,   1.63,   0.10,
07/11 15Z,   0.10,   0.53,  99.90,   0.73,   0.10,
07/11 16Z,   0.10,  -0.13,  99.90,   0.07,   0.10,
07/11 17Z,   0.10,  -0.45,  99.90,  -0.25,   0.10,  (min)
07/11 18Z,   0.10,  -0.27,  99.90,  -0.07,   0.10,
07/11 19Z,   0.10,   0.44,  99.90,   0.64,   0.10,
07/11 20Z,   0.10,   1.47,  99.90,   1.67,   0.10,
07/11 21Z,   0.10,   2.52,  99.90,   2.72,   0.10,
07/11 22Z,   0.10,   3.39,  99.90,   3.60,   0.10,
07/11 23Z,   0.10,   3.95,  99.90,   4.15,   0.10,
07/12 00Z,   0.10,   4.08,  99.90,   4.28,   0.10,  (max)
07/12 01Z,   0.10,   3.78,  99.90,   3.98,   0.10,
07/12 02Z,   0.10,   3.25,  99.90,   3.45,   0.10,
07/12 03Z,   0.10,   2.75,  99.90,   2.95,   0.10,
07/12 04Z,   0.10,   2.46,  99.90,   2.67,   0.10,  (min)
07/12 05Z,   0.10,   2.50,  99.90,   2.70,   0.10,
07/12 06Z,   0.10,   2.95,  99.90,   3.15,   0.10,
07/12 07Z,   0.10,   3.78,  99.90,   3.99,   0.10,
07/12 08Z,   0.10,   4.71,  99.90,   4.92,   0.10,
07/12 09Z,   0.10,   5.35,  99.90,   5.56,   0.10,
07/12 10Z,   0.10,   5.49,  99.90,   5.69,   0.10,  (max)
07/12 11Z,   0.10,   5.12,  99.90,   5.32,   0.10,
07/12 12Z,   0.10,   4.33,  99.90,   4.53,   0.10,
07/12 13Z,   0.10,   3.23,  99.90,   3.43,   0.10,
07/12 14Z,   0.10,   2.02,  99.90,   2.22,   0.10,
07/12 15Z,   0.10,   0.93,  99.90,   1.13,   0.10,
07/12 16Z,   0.10,   0.11,  99.90,   0.31,   0.10,
07/12 17Z,   0.10,  -0.40,  99.90,  -0.20,   0.10,
07/12 18Z,   0.10,  -0.50,  99.90,  -0.29,   0.10,  (min)
07/12 19Z,   0.10,  -0.05,  99.90,   0.15,   0.10,
07/12 20Z,   0.10,   0.87,  99.90,   1.08,   0.10,
07/12 21Z,   0.10,   1.99,  99.90,   2.19,   0.10,
07/12 22Z,   0.10,   3.00,  99.90,   3.20,   0.10,
07/12 23Z,   0.10,   3.73,  99.90,   3.94,   0.10,
07/13 00Z,   0.10,   4.10,  99.90,   4.30,   0.10,  (max)
07/13 01Z,   0.10,   4.02,  99.90,   4.22,   0.10,
07/13 02Z,   0.10,   3.55,  99.90,   3.76,   0.10,
07/13 03Z,   0.10,   2.94,  99.90,   3.14,   0.10,
07/13 04Z,   0.10,   2.42,  99.90,   2.63,   0.10,
07/13 05Z,   0.10,   2.18,  99.90,   2.38,   0.10,  (min)
07/13 06Z,   0.10,   2.30,  99.90,   2.50,   0.10,
07/13 07Z,   0.10,   2.85,  99.90,   3.06,   0.10,
07/13 08Z,   0.10,   3.76,  99.90,   3.96,   0.10,
07/13 09Z,   0.10,   4.68,  99.90,   4.88,   0.10,
07/13 10Z,   0.10,   5.24,  99.90,   5.44,   0.10,
07/13 11Z,   0.10,   5.27,  99.90,   5.47,   0.10,  (max)
07/13 12Z,   0.10,   4.79,  99.90,   4.99,   0.10,
07/13 13Z,   0.10,   3.90,  99.90,   4.10,   0.10,
07/13 14Z,   0.10,   2.73,  99.90,   2.94,   0.10,
07/13 15Z,   0.10,   1.51,  99.90,   1.71,   0.10,
07/13 16Z,   0.10,   0.48,  99.90,   0.68,   0.10,
07/13 17Z,   0.10,  -0.22,  99.90,  -0.02,   0.10,
07/13 18Z,   0.10,  -0.53,  99.90,  -0.33,   0.10,  (min)
07/13 19Z,   0.10,  -0.36,  99.90,  -0.16,   0.10,
07/13 20Z,   0.10,   0.34,  99.90,   0.54,   0.10,
07/13 21Z,   0.10,   1.43,  99.90,   1.63,   0.10,
07/13 22Z,   0.10,   2.56,  99.90,   2.77,   0.10,
07/13 23Z,   0.10,   3.47,  99.90,   3.67,   0.10,
07/14 00Z,   0.10,   4.02,  99.90,   4.23,   0.10,