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
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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 : 02/19/2026 09:21:10 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
02/17 18Z,   0.50,   5.80,   6.81,  99.90,   0.51,
02/17 19Z,   0.50,   6.12,   7.04,  99.90,   0.42,  (max)
02/17 20Z,   0.60,   5.81,   6.76,  99.90,   0.35,
02/17 21Z,   0.70,   4.84,   5.68,  99.90,   0.14,
02/17 22Z,   0.70,   3.37,   4.06,  99.90,  -0.01,
02/17 23Z,   0.70,   1.77,   2.59,  99.90,   0.12,
02/18 00Z,   0.80,   0.48,   1.54,  99.90,   0.26,
02/18 01Z,   0.90,  -0.22,   0.78,  99.90,   0.10,
02/18 02Z,   0.90,  -0.23,   0.74,  99.90,   0.07,  (min)
02/18 03Z,   0.90,   0.36,   1.22,  99.90,  -0.04,
02/18 04Z,   0.80,   1.35,   2.24,  99.90,   0.09,
02/18 05Z,   0.70,   2.54,   3.24,  99.90,   0.00,
02/18 06Z,   1.00,   3.73,   4.33,  99.90,  -0.40,
02/18 07Z,   0.80,   4.70,   5.20,  99.90,  -0.30,
02/18 08Z,   0.80,   5.23,   5.72,  99.90,  -0.31,  (max)
02/18 09Z,   0.80,   5.16,   5.66,  99.90,  -0.30,
02/18 10Z,   0.70,   4.52,   4.90,  99.90,  -0.32,
02/18 11Z,   0.60,   3.55,   3.87,  99.90,  -0.28,
02/18 12Z,   0.50,   2.60,   2.86,  99.90,  -0.24,
02/18 13Z,   0.50,   2.01,   2.33,  99.90,  -0.18,  (min)
02/18 14Z,   0.50,   1.95,   2.34,  99.90,  -0.11,
02/18 15Z,   0.50,   2.40,   2.79,  99.90,  -0.11,
02/18 16Z,   0.40,   3.20,   3.68,  99.90,   0.08,
02/18 17Z,   0.40,   4.16,   4.59,  99.90,   0.03,
02/18 18Z,   0.20,   5.08,   5.56,  99.90,   0.28,
02/18 19Z,   0.20,   5.73,   6.23,  99.90,   0.30,
02/18 20Z,   0.20,   5.89,   6.33,  99.90,   0.24,  (max)
02/18 21Z,   0.30,   5.40,   5.78,  99.90,   0.08,
02/18 22Z,   0.20,   4.29,   4.60,  99.90,   0.11,
02/18 23Z,   0.20,   2.81,   2.92,  99.90,  -0.09,
02/19 00Z,   0.30,   1.35,   1.60,  99.90,  -0.05,
02/19 01Z,   0.40,   0.32,   0.71,  99.90,  -0.01,
02/19 02Z,   0.40,  -0.04,   0.34,  99.90,  -0.02,  (min)
02/19 03Z,   0.30,   0.27,   0.71,  99.90,   0.14,
02/19 04Z,   0.40,   1.10,   1.49,  99.90,  -0.01,
02/19 05Z,   0.40,   2.23,   2.62,  99.90,  -0.01,
02/19 06Z,   0.40,   3.45,   3.83,  99.90,  -0.02,
02/19 07Z,   0.40,   4.54,   4.89,  99.90,  -0.05,
02/19 08Z,   0.40,   5.29,   5.73,  99.90,   0.04,
02/19 09Z,   0.50,   5.49,   6.00,  99.90,   0.01,  (max)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
02/19 10Z,   0.60,   5.06,  99.90,   5.67,   0.00,
02/19 11Z,   0.50,   4.12,  99.90,   4.62,   0.00,
02/19 12Z,   0.50,   2.98,  99.90,   3.48,   0.00,
02/19 13Z,   0.70,   2.02,  99.90,   2.72,  -0.00,
02/19 14Z,   0.80,   1.54,  99.90,   2.34,  -0.00,
02/19 15Z,   0.60,   1.64,  99.90,   2.24,  -0.00,  (min)
02/19 16Z,   0.60,   2.23,  99.90,   2.83,  -0.00,
02/19 17Z,   0.60,   3.11,  99.90,   3.71,  -0.01,
02/19 18Z,   0.50,   4.08,  99.90,   4.58,  -0.01,
02/19 19Z,   0.40,   4.94,  99.90,   5.33,  -0.01,
02/19 20Z,   0.40,   5.47,  99.90,   5.86,  -0.01,
02/19 21Z,   0.40,   5.49,  99.90,   5.88,  -0.01,  (max)
02/19 22Z,   0.30,   4.89,  99.90,   5.18,  -0.01,
02/19 23Z,   0.20,   3.76,  99.90,   3.95,  -0.01,
02/20 00Z,   0.30,   2.39,  99.90,   2.68,  -0.01,
02/20 01Z,   0.20,   1.18,  99.90,   1.37,  -0.01,
02/20 02Z,   0.10,   0.48,  99.90,   0.57,  -0.01,
02/20 03Z,   0.10,   0.44,  99.90,   0.53,  -0.01,  (min)
02/20 04Z,   0.10,   1.01,  99.90,   1.10,  -0.01,
02/20 05Z,   0.00,   1.99,  99.90,   1.98,  -0.01,
02/20 06Z,   0.00,   3.17,  99.90,   3.16,  -0.01,
02/20 07Z,   0.00,   4.31,  99.90,   4.30,  -0.01,
02/20 08Z,   0.10,   5.23,  99.90,   5.32,  -0.01,
02/20 09Z,   0.10,   5.70,  99.90,   5.79,  -0.01,  (max)
02/20 10Z,   0.10,   5.57,  99.90,   5.66,  -0.01,
02/20 11Z,   0.10,   4.82,  99.90,   4.91,  -0.01,
02/20 12Z,   0.00,   3.65,  99.90,   3.64,  -0.01,
02/20 13Z,   0.10,   2.42,  99.90,   2.51,  -0.01,
02/20 14Z,   0.10,   1.50,  99.90,   1.59,  -0.01,
02/20 15Z,   0.10,   1.14,  99.90,   1.23,  -0.01,  (min)
02/20 16Z,   0.10,   1.36,  99.90,   1.45,  -0.01,
02/20 17Z,   0.10,   2.03,  99.90,   2.12,  -0.01,
02/20 18Z,   0.10,   2.92,  99.90,   3.01,  -0.01,
02/20 19Z,   0.10,   3.84,  99.90,   3.93,  -0.01,
02/20 20Z,   0.10,   4.61,  99.90,   4.70,  -0.01,
02/20 21Z,   0.10,   5.04,  99.90,   5.13,  -0.01,  (max)
02/20 22Z,   0.10,   4.98,  99.90,   5.07,  -0.01,
02/20 23Z,   0.20,   4.38,  99.90,   4.57,  -0.01,
02/21 00Z,   0.20,   3.36,  99.90,   3.55,  -0.01,
02/21 01Z,   0.20,   2.22,  99.90,   2.41,  -0.01,
02/21 02Z,   0.20,   1.31,  99.90,   1.50,  -0.01,
02/21 03Z,   0.30,   0.93,  99.90,   1.22,  -0.01,  (min)
02/21 04Z,   0.20,   1.15,  99.90,   1.34,  -0.01,
02/21 05Z,   0.20,   1.88,  99.90,   2.07,  -0.01,
02/21 06Z,   0.20,   2.91,  99.90,   3.10,  -0.01,
02/21 07Z,   0.20,   4.02,  99.90,   4.21,  -0.01,
02/21 08Z,   0.20,   5.03,  99.90,   5.22,  -0.01,
02/21 09Z,   0.20,   5.72,  99.90,   5.91,  -0.01,
02/21 10Z,   0.20,   5.91,  99.90,   6.10,  -0.01,  (max)
02/21 11Z,   0.20,   5.49,  99.90,   5.68,  -0.01,
02/21 12Z,   0.20,   4.50,  99.90,   4.69,  -0.01,
02/21 13Z,   0.20,   3.20,  99.90,   3.39,  -0.01,
02/21 14Z,   0.20,   1.95,  99.90,   2.14,  -0.01,
02/21 15Z,   0.20,   1.09,  99.90,   1.28,  -0.01,
02/21 16Z,   0.20,   0.82,  99.90,   1.01,  -0.01,  (min)
02/21 17Z,   0.20,   1.09,  99.90,   1.28,  -0.01,
02/21 18Z,   0.20,   1.76,  99.90,   1.95,  -0.01,
02/21 19Z,   0.20,   2.60,  99.90,   2.79,  -0.01,
02/21 20Z,   0.20,   3.45,  99.90,   3.64,  -0.01,
02/21 21Z,   0.30,   4.14,  99.90,   4.43,  -0.01,
02/21 22Z,   0.40,   4.52,  99.90,   4.91,  -0.01,  (max)
02/21 23Z,   0.40,   4.47,  99.90,   4.86,  -0.01,
02/22 00Z,   0.40,   3.98,  99.90,   4.37,  -0.01,
02/22 01Z,   0.50,   3.16,  99.90,   3.65,  -0.01,
02/22 02Z,   0.40,   2.30,  99.90,   2.69,  -0.01,
02/22 03Z,   0.40,   1.70,  99.90,   2.09,  -0.01,
02/22 04Z,   0.50,   1.57,  99.90,   2.06,  -0.01,  (min)
02/22 05Z,   0.40,   1.95,  99.90,   2.34,  -0.01,
02/22 06Z,   0.40,   2.72,  99.90,   3.11,  -0.01,
02/22 07Z,   0.40,   3.70,  99.90,   4.09,  -0.01,
02/22 08Z,   0.50,   4.69,  99.90,   5.18,  -0.01,
02/22 09Z,   0.40,   5.51,  99.90,   5.90,  -0.01,
02/22 10Z,   0.40,   5.99,  99.90,   6.38,  -0.01,
02/22 11Z,   0.50,   5.95,  99.90,   6.44,  -0.01,  (max)
02/22 12Z,   0.50,   5.33,  99.90,   5.82,  -0.01,
02/22 13Z,   0.50,   4.21,  99.90,   4.70,  -0.01,
02/22 14Z,   0.50,   2.86,  99.90,   3.35,  -0.01,
02/22 15Z,   0.50,   1.63,  99.90,   2.12,  -0.01,
02/22 16Z,   0.40,   0.82,  99.90,   1.20,  -0.01,
02/22 17Z,   0.40,   0.56,  99.90,   0.95,  -0.01,  (min)
02/22 18Z,   0.40,   0.82,  99.90,   1.21,  -0.01,
02/22 19Z,   0.40,   1.42,  99.90,   1.81,  -0.01,
02/22 20Z,   0.40,   2.18,  99.90,   2.57,  -0.01,
02/22 21Z,   0.40,   2.94,  99.90,   3.33,  -0.01,
02/22 22Z,   0.40,   3.59,  99.90,   3.98,  -0.01,
02/22 23Z,   0.40,   3.99,  99.90,   4.38,  -0.01,
02/23 00Z,   0.40,   4.05,  99.90,   4.44,  -0.01,
02/23 01Z,  99.90,   3.75,  99.90,  99.90,  -0.01,
02/23 02Z,  99.90,   3.20,  99.90,  99.90,  -0.01,
02/23 03Z,  99.90,   2.62,  99.90,  99.90,  -0.01,
02/23 04Z,  99.90,   2.25,  99.90,  99.90,  -0.01,
02/23 05Z,  99.90,   2.26,  99.90,  99.90,  -0.01,
02/23 06Z,  99.90,   2.68,  99.90,  99.90,  -0.01,