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
Port Heiden, AK
Egegik, AK
Naknek, AK
Clark's Pt, AK
Goodnews Bay
Quinhagak, AK
Kuskokwak, AK
Eek, Apokak, AK
Popokamute, AK
Scammon Bay AK
St. Lawrence, AK
Kwikluak, AK
Kawanak, AK
Apoon, Yukon, AK
St. Michaels, AK
Golovin, AK
Nome, AK
Port Clarence, AK
Kotzebue, AK
Pt. Barrow, AK
Prudhoe Bay, AK
St. Paul Island AK
Surge List
Norton Sound
Arctic Alaska
#Sitka, AK : 07/17/2025 04:20:49 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/15 12Z,  -1.00,   9.04,   8.38,  99.90,   0.34,
07/15 13Z,  -1.00,   8.59,   7.87,  99.90,   0.28,  (max)
07/15 14Z,  -1.00,   7.15,   6.55,  99.90,   0.40,
07/15 15Z,  -1.00,   5.01,   4.43,  99.90,   0.42,
07/15 16Z,  -1.00,   2.66,   2.12,  99.90,   0.46,
07/15 17Z,  -1.00,   0.63,   0.06,  99.90,   0.43,
07/15 18Z,  -0.90,  -0.58,  -1.17,  99.90,   0.31,
07/15 19Z,  -1.00,  -0.71,  -1.26,  99.90,   0.45,  (min)
07/15 20Z,  -1.00,   0.30,  -0.29,  99.90,   0.41,
07/15 21Z,  -1.00,   2.20,   1.59,  99.90,   0.39,
07/15 22Z,  -1.00,   4.55,   3.85,  99.90,   0.30,
07/15 23Z,  -1.00,   6.80,   6.05,  99.90,   0.25,
07/16 00Z,  -0.90,   8.47,   7.74,  99.90,   0.17,
07/16 01Z,  -0.90,   9.18,   8.42,  99.90,   0.14,  (max)
07/16 02Z,  -0.90,   8.84,   8.12,  99.90,   0.18,
07/16 03Z,  -1.00,   7.59,   6.96,  99.90,   0.37,
07/16 04Z,  -0.90,   5.80,   5.16,  99.90,   0.26,
07/16 05Z,  -0.90,   3.96,   3.37,  99.90,   0.31,
07/16 06Z,  -0.90,   2.55,   2.00,  99.90,   0.35,
07/16 07Z,  -0.90,   1.93,   1.36,  99.90,   0.33,  (min)
07/16 08Z,  -0.90,   2.24,   1.59,  99.90,   0.25,
07/16 09Z,  -0.90,   3.36,   2.73,  99.90,   0.27,
07/16 10Z,  -0.90,   4.97,   4.37,  99.90,   0.30,
07/16 11Z,  -0.90,   6.61,   5.97,  99.90,   0.26,
07/16 12Z,  -0.90,   7.82,   7.17,  99.90,   0.25,
07/16 13Z,  -0.90,   8.24,   7.61,  99.90,   0.27,  (max)
07/16 14Z,  -0.90,   7.72,   7.13,  99.90,   0.31,
07/16 15Z,  -0.90,   6.34,   5.79,  99.90,   0.35,
07/16 16Z,  -0.90,   4.44,   3.91,  99.90,   0.37,
07/16 17Z,  -0.90,   2.45,   1.87,  99.90,   0.32,
07/16 18Z,  -0.80,   0.89,   0.30,  99.90,   0.21,
07/16 19Z,  -0.80,   0.14,  -0.43,  99.90,   0.23,  (min)
07/16 20Z,  -0.80,   0.40,  -0.19,  99.90,   0.21,
07/16 21Z,  -0.80,   1.65,   1.05,  99.90,   0.20,
07/16 22Z,  -0.80,   3.60,   2.95,  99.90,   0.15,
07/16 23Z,  -0.80,   5.82,   5.13,  99.90,   0.11,
07/17 00Z,  -0.70,   7.80,   7.02,  99.90,  -0.08,
07/17 01Z,  -0.70,   9.09,   8.35,  99.90,  -0.04,
07/17 02Z,  -0.70,   9.42,   8.63,  99.90,  -0.09,  (max)
07/17 03Z,  -0.60,   8.76,   7.98,  99.90,  -0.18,
07/17 04Z,  -0.60,   7.28,   6.58,  99.90,  -0.10,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/17 05Z,  -0.50,   5.38,  99.90,   4.80,  -0.08,
07/17 06Z,  -0.50,   3.52,  99.90,   2.97,  -0.06,
07/17 07Z,  -0.50,   2.14,  99.90,   1.61,  -0.03,
07/17 08Z,  -0.50,   1.55,  99.90,   1.04,  -0.01,  (min)
07/17 09Z,  -0.60,   1.84,  99.90,   1.26,   0.02,
07/17 10Z,  -0.60,   2.89,  99.90,   2.33,   0.04,
07/17 11Z,  -0.60,   4.38,  99.90,   3.84,   0.06,
07/17 12Z,  -0.60,   5.88,  99.90,   5.36,   0.09,
07/17 13Z,  -0.50,   6.98,  99.90,   6.59,   0.11,
07/17 14Z,  -0.50,   7.37,  99.90,   7.01,   0.14,  (max)
07/17 15Z,  -0.50,   6.95,  99.90,   6.61,   0.16,
07/17 16Z,  -0.50,   5.82,  99.90,   5.50,   0.18,
07/17 17Z,  -0.40,   4.27,  99.90,   4.05,   0.18,
07/17 18Z,  -0.40,   2.71,  99.90,   2.50,   0.18,
07/17 19Z,  -0.40,   1.57,  99.90,   1.36,   0.18,
07/17 20Z,  -0.40,   1.18,  99.90,   0.96,   0.18,  (min)
07/17 21Z,  -0.40,   1.67,  99.90,   1.46,   0.18,
07/17 22Z,  -0.30,   2.98,  99.90,   2.87,   0.18,
07/17 23Z,  -0.30,   4.84,  99.90,   4.73,   0.18,
07/18 00Z,  -0.20,   6.84,  99.90,   6.82,   0.18,
07/18 01Z,  -0.20,   8.51,  99.90,   8.50,   0.18,
07/18 02Z,  -0.20,   9.49,  99.90,   9.48,   0.18,  (max)
07/18 03Z,  -0.30,   9.55,  99.90,   9.44,   0.18,
07/18 04Z,  -0.20,   8.68,  99.90,   8.67,   0.18,
07/18 05Z,  -0.30,   7.08,  99.90,   6.97,   0.18,
07/18 06Z,  -0.30,   5.12,  99.90,   5.00,   0.18,
07/18 07Z,  -0.30,   3.23,  99.90,   3.11,   0.18,
07/18 08Z,  -0.30,   1.81,  99.90,   1.70,   0.18,
07/18 09Z,  -0.30,   1.15,  99.90,   1.03,   0.18,  (min)
07/18 10Z,  -0.20,   1.32,  99.90,   1.31,   0.18,
07/18 11Z,  -0.20,   2.23,  99.90,   2.21,   0.18,
07/18 12Z,  -0.20,   3.57,  99.90,   3.56,   0.18,
07/18 13Z,  -0.20,   4.99,  99.90,   4.97,   0.18,
07/18 14Z,  -0.20,   6.09,  99.90,   6.08,   0.18,
07/18 15Z,  -0.20,   6.62,  99.90,   6.60,   0.18,  (max)
07/18 16Z,  -0.20,   6.45,  99.90,   6.43,   0.18,
07/18 17Z,  -0.20,   5.66,  99.90,   5.65,   0.18,
07/18 18Z,  -0.20,   4.51,  99.90,   4.50,   0.18,
07/18 19Z,  -0.20,   3.34,  99.90,   3.32,   0.18,
07/18 20Z,  -0.20,   2.51,  99.90,   2.50,   0.18,
07/18 21Z,  -0.20,   2.31,  99.90,   2.29,   0.18,  (min)
07/18 22Z,  -0.20,   2.85,  99.90,   2.84,   0.18,
07/18 23Z,  -0.10,   4.09,  99.90,   4.17,   0.18,
07/19 00Z,  -0.10,   5.76,  99.90,   5.85,   0.18,
07/19 01Z,   0.00,   7.52,  99.90,   7.70,   0.18,
07/19 02Z,   0.00,   8.95,  99.90,   9.14,   0.18,
07/19 03Z,  -0.10,   9.73,  99.90,   9.82,   0.18,  (max)
07/19 04Z,  -0.10,   9.64,  99.90,   9.73,   0.18,
07/19 05Z,  -0.10,   8.69,  99.90,   8.77,   0.18,
07/19 06Z,  -0.20,   7.03,  99.90,   7.02,   0.18,
07/19 07Z,  -0.20,   5.02,  99.90,   5.00,   0.18,
07/19 08Z,  -0.20,   3.05,  99.90,   3.03,   0.18,
07/19 09Z,  -0.20,   1.51,  99.90,   1.50,   0.18,
07/19 10Z,  -0.20,   0.68,  99.90,   0.67,   0.18,
07/19 11Z,  -0.20,   0.68,  99.90,   0.66,   0.18,  (min)
07/19 12Z,  -0.10,   1.42,  99.90,   1.51,   0.18,
07/19 13Z,  -0.10,   2.68,  99.90,   2.76,   0.18,
07/19 14Z,  -0.10,   4.11,  99.90,   4.19,   0.18,
07/19 15Z,  -0.10,   5.35,  99.90,   5.43,   0.18,
07/19 16Z,  -0.20,   6.13,  99.90,   6.11,   0.18,
07/19 17Z,  -0.20,   6.30,  99.90,   6.28,   0.18,  (max)
07/19 18Z,  -0.20,   5.88,  99.90,   5.87,   0.18,
07/19 19Z,  -0.20,   5.07,  99.90,   5.06,   0.18,
07/19 20Z,  -0.20,   4.16,  99.90,   4.15,   0.18,
07/19 21Z,  -0.10,   3.48,  99.90,   3.56,   0.18,
07/19 22Z,  -0.10,   3.29,  99.90,   3.37,   0.18,  (min)
07/19 23Z,  -0.10,   3.74,  99.90,   3.82,   0.18,
07/20 00Z,  -0.10,   4.80,  99.90,   4.89,   0.18,
07/20 01Z,  -0.10,   6.28,  99.90,   6.37,   0.18,
07/20 02Z,  -0.10,   7.86,  99.90,   7.95,   0.18,
07/20 03Z,  -0.10,   9.18,  99.90,   9.26,   0.18,
07/20 04Z,  -0.10,   9.89,  99.90,   9.97,   0.18,  (max)
07/20 05Z,  -0.20,   9.78,  99.90,   9.77,   0.18,
07/20 06Z,  -0.20,   8.82,  99.90,   8.80,   0.18,
07/20 07Z,  -0.30,   7.14,  99.90,   7.02,   0.18,
07/20 08Z,  -0.30,   5.04,  99.90,   4.93,   0.18,
07/20 09Z,  -0.20,   2.93,  99.90,   2.91,   0.18,
07/20 10Z,  -0.20,   1.19,  99.90,   1.17,   0.18,
07/20 11Z,  -0.20,   0.14,  99.90,   0.13,   0.18,
07/20 12Z,  -0.20,  -0.05,  99.90,  -0.07,   0.18,  (min)
07/20 13Z,  -0.20,   0.58,  99.90,   0.56,   0.18,
07/20 14Z,  -0.20,   1.84,  99.90,   1.82,   0.18,
07/20 15Z,  -0.20,   3.39,  99.90,   3.38,   0.18,
07/20 16Z,  -0.30,   4.88,  99.90,   4.77,   0.18,
07/20 17Z,  -0.30,   5.98,  99.90,   5.87,   0.18,
07/20 18Z,  -0.30,   6.50,  99.90,   6.38,   0.18,
07/20 19Z,  99.90,   6.39,  99.90,  99.90,   0.18,
07/20 20Z,  99.90,   5.79,  99.90,  99.90,   0.18,
07/20 21Z,  99.90,   4.97,  99.90,  99.90,   0.18,
07/20 22Z,  99.90,   4.25,  99.90,  99.90,   0.18,
07/20 23Z,  99.90,   3.93,  99.90,  99.90,   0.18,
07/21 00Z,  99.90,   4.20,  99.90,  99.90,   0.18,