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

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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
#San Francisco, CA : 10/10/2026 13:22:37 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/08 18Z,   1.00,   5.84,   6.72,  99.90,  -0.12,  (max)
10/08 19Z,   1.00,   5.44,   6.38,  99.90,  -0.06,
10/08 20Z,   1.00,   4.41,   5.34,  99.90,  -0.07,
10/08 21Z,   1.10,   3.07,   3.96,  99.90,  -0.21,
10/08 22Z,   1.10,   1.83,   2.76,  99.90,  -0.17,
10/08 23Z,   1.10,   1.07,   2.18,  99.90,   0.01,
10/09 00Z,   1.00,   0.93,   1.96,  99.90,   0.03,  (min)
10/09 01Z,   1.10,   1.38,   2.46,  99.90,  -0.02,
10/09 02Z,   1.10,   2.24,   3.41,  99.90,   0.07,
10/09 03Z,   1.00,   3.32,   4.43,  99.90,   0.11,
10/09 04Z,   1.00,   4.38,   5.43,  99.90,   0.05,
10/09 05Z,   1.10,   5.19,   6.19,  99.90,  -0.10,
10/09 06Z,   1.00,   5.51,   6.62,  99.90,   0.11,  (max)
10/09 07Z,   0.90,   5.19,   6.34,  99.90,   0.25,
10/09 08Z,   1.00,   4.27,   5.41,  99.90,   0.14,
10/09 09Z,   1.00,   3.01,   4.06,  99.90,   0.05,
10/09 10Z,   1.00,   1.80,   2.86,  99.90,   0.06,
10/09 11Z,   1.00,   1.00,   2.13,  99.90,   0.13,
10/09 12Z,   1.10,   0.80,   1.93,  99.90,   0.03,  (min)
10/09 13Z,   1.20,   1.19,   2.30,  99.90,  -0.09,
10/09 14Z,   1.20,   2.03,   3.20,  99.90,  -0.03,
10/09 15Z,   1.10,   3.14,   4.37,  99.90,   0.13,
10/09 16Z,   1.10,   4.31,   5.41,  99.90,   0.00,
10/09 17Z,   1.20,   5.32,   6.39,  99.90,  -0.13,
10/09 18Z,   1.20,   5.93,   7.00,  99.90,  -0.13,  (max)
10/09 19Z,   1.10,   5.89,   6.99,  99.90,   0.00,
10/09 20Z,   1.20,   5.13,   6.21,  99.90,  -0.12,
10/09 21Z,   1.20,   3.81,   4.85,  99.90,  -0.16,
10/09 22Z,   1.20,   2.33,   3.38,  99.90,  -0.15,
10/09 23Z,   1.20,   1.12,   2.25,  99.90,  -0.07,
10/10 00Z,   1.10,   0.48,   1.72,  99.90,   0.14,  (min)
10/10 01Z,   1.20,   0.53,   1.80,  99.90,   0.07,
10/10 02Z,   1.20,   1.14,   2.37,  99.90,   0.03,
10/10 03Z,   1.20,   2.12,   3.41,  99.90,   0.09,
10/10 04Z,   1.10,   3.25,   4.45,  99.90,   0.10,
10/10 05Z,   1.20,   4.32,   5.46,  99.90,  -0.06,
10/10 06Z,   1.10,   5.08,   6.27,  99.90,   0.09,
10/10 07Z,   1.10,   5.33,   6.62,  99.90,   0.19,  (max)
10/10 08Z,   1.10,   4.95,   6.30,  99.90,   0.25,
10/10 09Z,   1.20,   4.03,   5.37,  99.90,   0.14,
10/10 10Z,   1.20,   2.86,   4.13,  99.90,   0.07,
10/10 11Z,   1.10,   1.84,   3.08,  99.90,   0.14,
10/10 12Z,   1.10,   1.29,   2.56,  99.90,   0.17,  (min)
10/10 13Z,   1.20,   1.34,   2.65,  99.90,   0.11,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/10 14Z,   1.20,   1.92,  99.90,   3.23,   0.10,
10/10 15Z,   1.10,   2.87,  99.90,   4.06,   0.09,
10/10 16Z,   1.10,   3.97,  99.90,   5.15,   0.09,
10/10 17Z,   1.10,   5.02,  99.90,   6.20,   0.08,
10/10 18Z,   1.10,   5.80,  99.90,   6.97,   0.07,
10/10 19Z,   1.00,   6.07,  99.90,   7.13,   0.06,  (max)
10/10 20Z,   1.00,   5.66,  99.90,   6.71,   0.06,
10/10 21Z,   1.10,   4.57,  99.90,   5.72,   0.05,
10/10 22Z,   1.10,   3.07,  99.90,   4.21,   0.04,
10/10 23Z,   1.10,   1.57,  99.90,   2.70,   0.03,
10/11 00Z,   1.10,   0.49,  99.90,   1.62,   0.03,
10/11 01Z,   1.20,   0.07,  99.90,   1.29,   0.02,  (min)
10/11 02Z,   1.10,   0.32,  99.90,   1.44,   0.02,
10/11 03Z,   1.10,   1.08,  99.90,   2.20,   0.02,
10/11 04Z,   1.10,   2.14,  99.90,   3.25,   0.02,
10/11 05Z,   1.10,   3.27,  99.90,   4.39,   0.02,
10/11 06Z,   1.10,   4.28,  99.90,   5.39,   0.02,
10/11 07Z,   1.10,   4.95,  99.90,   6.06,   0.02,
10/11 08Z,   1.10,   5.10,  99.90,   6.21,   0.02,  (max)
10/11 09Z,   1.10,   4.66,  99.90,   5.78,   0.02,
10/11 10Z,   1.00,   3.79,  99.90,   4.80,   0.02,
10/11 11Z,   1.10,   2.78,  99.90,   3.90,   0.02,
10/11 12Z,   1.10,   2.01,  99.90,   3.12,   0.02,
10/11 13Z,   1.10,   1.73,  99.90,   2.84,   0.02,  (min)
10/11 14Z,   1.10,   2.00,  99.90,   3.11,   0.02,
10/11 15Z,   1.10,   2.71,  99.90,   3.83,   0.02,
10/11 16Z,   1.10,   3.67,  99.90,   4.79,   0.02,
10/11 17Z,   1.10,   4.68,  99.90,   5.80,   0.02,
10/11 18Z,   1.10,   5.54,  99.90,   6.66,   0.02,
10/11 19Z,   1.10,   6.02,  99.90,   7.14,   0.02,
10/11 20Z,   1.20,   5.94,  99.90,   7.15,   0.02,  (max)
10/11 21Z,   1.20,   5.18,  99.90,   6.39,   0.02,
10/11 22Z,   1.10,   3.85,  99.90,   4.97,   0.02,
10/11 23Z,   1.20,   2.29,  99.90,   3.51,   0.02,
10/12 00Z,   1.30,   0.90,  99.90,   2.22,   0.02,
10/12 01Z,   1.20,   0.05,  99.90,   1.27,   0.02,
10/12 02Z,   1.10,  -0.12,  99.90,   1.00,   0.02,  (min)
10/12 03Z,   1.10,   0.32,  99.90,   1.44,   0.02,
10/12 04Z,   1.10,   1.18,  99.90,   2.30,   0.02,
10/12 05Z,   1.10,   2.25,  99.90,   3.37,   0.02,
10/12 06Z,   1.10,   3.33,  99.90,   4.44,   0.02,
10/12 07Z,   1.10,   4.23,  99.90,   5.35,   0.02,
10/12 08Z,   1.10,   4.77,  99.90,   5.89,   0.02,
10/12 09Z,   1.10,   4.83,  99.90,   5.94,   0.02,  (max)
10/12 10Z,   1.10,   4.38,  99.90,   5.50,   0.02,
10/12 11Z,   1.10,   3.60,  99.90,   4.72,   0.02,
10/12 12Z,   1.00,   2.80,  99.90,   3.82,   0.02,
10/12 13Z,   1.00,   2.30,  99.90,   3.31,   0.02,
10/12 14Z,   1.00,   2.25,  99.90,   3.27,   0.02,  (min)
10/12 15Z,   1.00,   2.68,  99.90,   3.70,   0.02,
10/12 16Z,   0.90,   3.44,  99.90,   4.36,   0.02,
10/12 17Z,   0.90,   4.34,  99.90,   5.26,   0.02,
10/12 18Z,   0.90,   5.19,  99.90,   6.11,   0.02,
10/12 19Z,   0.90,   5.80,  99.90,   6.72,   0.02,
10/12 20Z,   0.90,   5.98,  99.90,   6.89,   0.02,  (max)
10/12 21Z,   0.90,   5.56,  99.90,   6.48,   0.02,
10/12 22Z,   0.90,   4.54,  99.90,   5.46,   0.02,
10/12 23Z,   0.90,   3.11,  99.90,   4.03,   0.02,
10/13 00Z,   0.90,   1.61,  99.90,   2.52,   0.02,
10/13 01Z,   0.90,   0.43,  99.90,   1.35,   0.02,
10/13 02Z,   0.90,  -0.16,  99.90,   0.76,   0.02,  (min)
10/13 03Z,   0.90,  -0.10,  99.90,   0.81,   0.02,
10/13 04Z,   0.90,   0.48,  99.90,   1.40,   0.02,
10/13 05Z,   0.80,   1.38,  99.90,   2.20,   0.02,
10/13 06Z,   0.80,   2.40,  99.90,   3.22,   0.02,
10/13 07Z,   0.80,   3.38,  99.90,   4.20,   0.02,
10/13 08Z,   0.80,   4.15,  99.90,   4.97,   0.02,
10/13 09Z,   0.80,   4.58,  99.90,   5.39,   0.02,  (max)
10/13 10Z,   0.80,   4.56,  99.90,   5.38,   0.02,
10/13 11Z,   0.80,   4.14,  99.90,   4.96,   0.02,
10/13 12Z,   0.80,   3.51,  99.90,   4.33,   0.02,
10/13 13Z,   0.80,   2.94,  99.90,   3.76,   0.02,
10/13 14Z,   0.80,   2.67,  99.90,   3.48,   0.02,  (min)
10/13 15Z,   0.70,   2.80,  99.90,   3.51,   0.02,
10/13 16Z,   0.70,   3.29,  99.90,   4.01,   0.02,
10/13 17Z,   0.70,   4.02,  99.90,   4.74,   0.02,
10/13 18Z,   0.70,   4.80,  99.90,   5.51,   0.02,
10/13 19Z,   0.70,   5.46,  99.90,   6.17,   0.02,
10/13 20Z,   0.70,   5.81,  99.90,   6.53,   0.02,  (max)
10/13 21Z,   0.70,   5.71,  99.90,   6.42,   0.02,
10/13 22Z,   0.70,   5.04,  99.90,   5.76,   0.02,
10/13 23Z,   0.70,   3.88,  99.90,   4.60,   0.02,
10/14 00Z,   0.80,   2.46,  99.90,   3.28,   0.02,
10/14 01Z,   0.80,   1.12,  99.90,   1.94,   0.02,
10/14 02Z,   0.70,   0.20,  99.90,   0.91,   0.02,
10/14 03Z,   0.70,  -0.15,  99.90,   0.57,   0.02,  (min)
10/14 04Z,   0.70,   0.08,  99.90,   0.80,   0.02,
10/14 05Z,   0.70,   0.72,  99.90,   1.44,   0.02,
10/14 06Z,   0.60,   1.60,  99.90,   2.22,   0.02,