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
#Port Clarence, AK : 04/12/2026 06:21:48 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/10 12Z,   0.60,   4.31,  99.90,   4.91,   0.00,
04/10 13Z,   0.60,   4.15,  99.90,   4.75,   0.00,  (min)
04/10 14Z,   0.60,   4.24,  99.90,   4.84,   0.00,
04/10 15Z,   0.60,   4.64,  99.90,   5.24,   0.00,
04/10 16Z,   0.60,   5.24,  99.90,   5.84,   0.00,
04/10 17Z,   0.50,   5.91,  99.90,   6.41,   0.00,
04/10 18Z,   0.60,   6.53,  99.90,   7.13,   0.00,
04/10 19Z,   0.60,   6.88,  99.90,   7.48,   0.00,  (max)
04/10 20Z,   0.60,   6.80,  99.90,   7.40,   0.00,
04/10 21Z,   0.50,   6.31,  99.90,   6.81,   0.00,
04/10 22Z,   0.50,   5.54,  99.90,   6.04,   0.00,
04/10 23Z,   0.50,   4.61,  99.90,   5.11,   0.00,
04/11 00Z,   0.50,   3.61,  99.90,   4.11,   0.00,
04/11 01Z,   0.50,   2.65,  99.90,   3.15,   0.00,
04/11 02Z,   0.50,   1.94,  99.90,   2.44,   0.00,
04/11 03Z,   0.60,   1.62,  99.90,   2.22,   0.00,  (min)
04/11 04Z,   0.60,   1.68,  99.90,   2.28,   0.00,
04/11 05Z,   0.70,   2.07,  99.90,   2.77,   0.00,
04/11 06Z,   0.80,   2.77,  99.90,   3.57,   0.00,
04/11 07Z,   0.90,   3.66,  99.90,   4.56,   0.00,
04/11 08Z,   1.00,   4.45,  99.90,   5.45,   0.00,
04/11 09Z,   1.10,   4.92,  99.90,   6.02,   0.00,
04/11 10Z,   1.20,   5.11,  99.90,   6.31,   0.00,  (max)
04/11 11Z,   1.20,   5.07,  99.90,   6.27,   0.00,
04/11 12Z,   1.30,   4.87,  99.90,   6.17,   0.00,
04/11 13Z,   1.20,   4.56,  99.90,   5.76,   0.00,
04/11 14Z,   1.20,   4.27,  99.90,   5.47,   0.00,
04/11 15Z,   1.20,   4.15,  99.90,   5.35,   0.00,  (min)
04/11 16Z,   1.10,   4.30,  99.90,   5.40,   0.00,
04/11 17Z,   1.10,   4.69,  99.90,   5.79,   0.00,
04/11 18Z,   1.30,   5.28,  99.90,   6.58,   0.00,
04/11 19Z,   1.20,   5.99,  99.90,   7.19,   0.00,
04/11 20Z,   1.20,   6.53,  99.90,   7.73,   0.00,
04/11 21Z,   1.20,   6.63,  99.90,   7.83,   0.00,  (max)
04/11 22Z,   1.20,   6.31,  99.90,   7.51,   0.00,
04/11 23Z,   1.20,   5.68,  99.90,   6.88,   0.00,
04/12 00Z,   1.40,   4.80,  99.90,   6.20,   0.00,
04/12 01Z,   1.40,   3.76,  99.90,   5.16,   0.00,
04/12 02Z,   1.40,   2.71,  99.90,   4.11,   0.00,
04/12 03Z,   1.30,   1.88,  99.90,   3.18,   0.00,
04/12 04Z,   1.30,   1.42,  99.90,   2.72,   0.00,
04/12 05Z,   1.30,   1.39,  99.90,   2.69,   0.00,  (min)
04/12 06Z,   1.30,   1.79,  99.90,   3.09,   0.00,
04/12 07Z,   1.30,   2.64,  99.90,   3.94,   0.00,
04/12 08Z,   1.20,   3.76,  99.90,   4.96,   0.00,
04/12 09Z,   1.20,   4.78,  99.90,   5.98,   0.00,
04/12 10Z,   1.20,   5.42,  99.90,   6.62,   0.00,
04/12 11Z,   1.20,   5.66,  99.90,   6.86,   0.00,  (max)
04/12 12Z,   1.20,   5.55,  99.90,   6.75,   0.00,
04/12 13Z,   1.10,   5.15,  99.90,   6.25,   0.00,
04/12 14Z,   1.10,   4.57,  99.90,   5.67,   0.00,
04/12 15Z,   1.00,   4.01,  99.90,   5.01,   0.00,
04/12 16Z,   1.00,   3.65,  99.90,   4.65,   0.00,
04/12 17Z,   1.00,   3.60,  99.90,   4.60,   0.00,  (min)
04/12 18Z,   0.90,   3.92,  99.90,   4.82,   0.00,
04/12 19Z,   0.90,   4.62,  99.90,   5.52,   0.00,
04/12 20Z,   0.80,   5.59,  99.90,   6.39,   0.00,
04/12 21Z,   0.80,   6.42,  99.90,   7.22,   0.00,
04/12 22Z,   0.70,   6.75,  99.90,   7.45,   0.00,  (max)
04/12 23Z,   0.70,   6.56,  99.90,   7.26,   0.00,
04/13 00Z,   0.60,   5.94,  99.90,   6.54,   0.00,
04/13 01Z,   0.50,   4.98,  99.90,   5.48,   0.00,
04/13 02Z,   0.40,   3.78,  99.90,   4.18,   0.00,
04/13 03Z,   0.30,   2.56,  99.90,   2.86,   0.00,
04/13 04Z,   0.30,   1.58,  99.90,   1.88,   0.00,
04/13 05Z,   0.20,   1.05,  99.90,   1.25,   0.00,
04/13 06Z,   0.10,   1.08,  99.90,   1.18,   0.00,  (min)
04/13 07Z,   0.10,   1.69,  99.90,   1.79,   0.00,
04/13 08Z,   0.00,   2.88,  99.90,   2.88,   0.00,
04/13 09Z,   0.00,   4.34,  99.90,   4.34,   0.00,
04/13 10Z,   0.00,   5.56,  99.90,   5.56,   0.00,
04/13 11Z,   0.00,   6.24,  99.90,   6.24,   0.00,
04/13 12Z,   0.00,   6.36,  99.90,   6.36,   0.00,  (max)
04/13 13Z,   0.00,   5.97,  99.90,   5.97,   0.00,
04/13 14Z,  -0.10,   5.21,  99.90,   5.11,   0.00,
04/13 15Z,  -0.10,   4.25,  99.90,   4.15,   0.00,
04/13 16Z,  -0.10,   3.35,  99.90,   3.25,   0.00,
04/13 17Z,  -0.10,   2.76,  99.90,   2.66,   0.00,
04/13 18Z,  -0.10,   2.65,  99.90,   2.55,   0.00,  (min)
04/13 19Z,  -0.10,   3.09,  99.90,   2.99,   0.00,
04/13 20Z,  -0.10,   4.09,  99.90,   3.99,   0.00,
04/13 21Z,  -0.10,   5.44,  99.90,   5.34,   0.00,
04/13 22Z,  -0.10,   6.58,  99.90,   6.48,   0.00,
04/13 23Z,  -0.10,   7.08,  99.90,   6.98,   0.00,  (max)
04/14 00Z,  -0.10,   6.92,  99.90,   6.82,   0.00,
04/14 01Z,  -0.10,   6.20,  99.90,   6.10,   0.00,
04/14 02Z,  -0.20,   5.04,  99.90,   4.84,   0.00,
04/14 03Z,  -0.20,   3.61,  99.90,   3.41,   0.00,
04/14 04Z,  -0.20,   2.21,  99.90,   2.01,   0.00,
04/14 05Z,  -0.20,   1.15,  99.90,   0.95,   0.00,
04/14 06Z,  -0.20,   0.69,  99.90,   0.49,   0.00,  (min)
04/14 07Z,  -0.20,   0.95,  99.90,   0.75,   0.00,
04/14 08Z,  -0.20,   1.97,  99.90,   1.77,   0.00,
04/14 09Z,  -0.10,   3.61,  99.90,   3.51,   0.00,
04/14 10Z,  -0.10,   5.38,  99.90,   5.28,   0.00,
04/14 11Z,  -0.10,   6.67,  99.90,   6.57,   0.00,
04/14 12Z,  -0.10,   7.19,  99.90,   7.09,   0.00,  (max)
04/14 13Z,  -0.10,   6.98,  99.90,   6.88,   0.00,
04/14 14Z,  -0.10,   6.17,  99.90,   6.07,   0.00,
04/14 15Z,  -0.20,   4.93,  99.90,   4.73,   0.00,
04/14 16Z,  -0.20,   3.54,  99.90,   3.34,   0.00,
04/14 17Z,  -0.20,   2.33,  99.90,   2.13,   0.00,
04/14 18Z,  -0.20,   1.62,  99.90,   1.42,   0.00,
04/14 19Z,  -0.20,   1.61,  99.90,   1.41,   0.00,  (min)
04/14 20Z,  -0.20,   2.36,  99.90,   2.16,   0.00,
04/14 21Z,  -0.20,   3.82,  99.90,   3.62,   0.00,
04/14 22Z,  -0.20,   5.58,  99.90,   5.38,   0.00,
04/14 23Z,  -0.20,   6.95,  99.90,   6.75,   0.00,
04/15 00Z,  -0.20,   7.51,  99.90,   7.31,   0.00,  (max)
04/15 01Z,  -0.20,   7.25,  99.90,   7.05,   0.00,
04/15 02Z,  -0.20,   6.33,  99.90,   6.13,   0.00,
04/15 03Z,  -0.20,   4.92,  99.90,   4.72,   0.00,
04/15 04Z,  -0.20,   3.28,  99.90,   3.08,   0.00,
04/15 05Z,  -0.30,   1.76,  99.90,   1.46,   0.00,
04/15 06Z,  -0.20,   0.74,  99.90,   0.54,   0.00,
04/15 07Z,  -0.20,   0.50,  99.90,   0.30,   0.00,  (min)
04/15 08Z,  -0.20,   1.18,  99.90,   0.98,   0.00,
04/15 09Z,  -0.20,   2.72,  99.90,   2.52,   0.00,
04/15 10Z,  -0.30,   4.80,  99.90,   4.50,   0.00,
04/15 11Z,  -0.30,   6.74,  99.90,   6.44,   0.00,
04/15 12Z,  -0.30,   7.87,  99.90,   7.57,   0.00,
04/15 13Z,  -0.30,   8.04,  99.90,   7.74,   0.00,  (max)
04/15 14Z,  -0.30,   7.36,  99.90,   7.06,   0.00,
04/15 15Z,  -0.30,   6.02,  99.90,   5.72,   0.00,
04/15 16Z,  -0.30,   4.29,  99.90,   3.99,   0.00,
04/15 17Z,  -0.30,   2.51,  99.90,   2.21,   0.00,
04/15 18Z,  -0.30,   1.10,  99.90,   0.80,   0.00,
04/15 19Z,  -0.30,   0.42,  99.90,   0.12,   0.00,  (min)
04/15 20Z,  -0.30,   0.68,  99.90,   0.38,   0.00,
04/15 21Z,  -0.30,   1.89,  99.90,   1.59,   0.00,
04/15 22Z,  -0.20,   3.85,  99.90,   3.65,   0.00,
04/15 23Z,  -0.20,   5.94,  99.90,   5.74,   0.00,
04/16 00Z,  -0.20,   7.41,  99.90,   7.21,   0.00,