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
#Philadelphia, PA : 05/15/2025 13:20:59 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/13 18Z,   0.60,   5.34,   6.12,  99.90,   0.18,
05/13 19Z,   0.60,   5.95,   6.69,  99.90,   0.14,  (max)
05/13 20Z,   0.60,   5.74,   6.37,  99.90,   0.03,
05/13 21Z,   0.60,   4.88,   5.36,  99.90,  -0.12,
05/13 22Z,   0.60,   3.86,   4.30,  99.90,  -0.16,
05/13 23Z,   0.60,   2.88,   3.28,  99.90,  -0.20,
05/14 00Z,   0.70,   2.03,   2.29,  99.90,  -0.44,
05/14 01Z,   0.70,   1.37,   1.48,  99.90,  -0.59,  (min)
05/14 02Z,   0.70,   1.26,   1.65,  99.90,  -0.31,
05/14 03Z,   0.70,   2.31,   3.78,  99.90,   0.77,
05/14 04Z,   0.80,   4.11,   5.33,  99.90,   0.42,
05/14 05Z,   0.80,   5.58,   6.54,  99.90,   0.16,
05/14 06Z,   0.80,   6.51,   7.42,  99.90,   0.11,
05/14 07Z,   0.80,   7.07,   8.29,  99.90,   0.42,  0.12 ft above HAT  (max)
05/14 08Z,   0.90,   6.94,   7.88,  99.90,   0.04,
05/14 09Z,   0.90,   6.08,   6.92,  99.90,  -0.06,
05/14 10Z,   1.00,   4.96,   5.87,  99.90,  -0.09,
05/14 11Z,   1.00,   3.84,   4.78,  99.90,  -0.06,
05/14 12Z,   1.10,   2.78,   3.79,  99.90,  -0.09,
05/14 13Z,   1.10,   1.76,   2.97,  99.90,   0.11,
05/14 14Z,   1.20,   0.97,   2.27,  99.90,   0.10,
05/14 15Z,   1.20,   1.09,   2.19,  99.90,  -0.10,  (min)
05/14 16Z,   1.20,   2.33,   3.53,  99.90,  -0.00,
05/14 17Z,   1.20,   3.78,   5.13,  99.90,   0.15,
05/14 18Z,   1.20,   4.78,   6.22,  99.90,   0.24,
05/14 19Z,   1.20,   5.54,   6.84,  99.90,   0.10,
05/14 20Z,   1.20,   5.86,   7.00,  99.90,  -0.06,  (max)
05/14 21Z,   1.20,   5.40,   6.24,  99.90,  -0.36,
05/14 22Z,   1.20,   4.43,   5.20,  99.90,  -0.43,
05/14 23Z,   1.10,   3.40,   4.22,  99.90,  -0.28,
05/15 00Z,   1.20,   2.46,   3.25,  99.90,  -0.41,
05/15 01Z,   1.10,   1.71,   2.36,  99.90,  -0.45,
05/15 02Z,   1.10,   1.25,   1.69,  99.90,  -0.66,  (min)
05/15 03Z,   1.10,   1.50,   2.43,  99.90,  -0.17,
05/15 04Z,   1.10,   2.92,   4.67,  99.90,   0.65,
05/15 05Z,   1.10,   4.82,   6.08,  99.90,   0.16,
05/15 06Z,   1.00,   6.13,   7.12,  99.90,  -0.01,
05/15 07Z,   1.00,   6.82,   7.86,  99.90,   0.04,
05/15 08Z,   1.00,   7.08,   8.34,  99.90,   0.26,  0.17 ft above HAT  (max)
05/15 09Z,   1.00,   6.65,   7.57,  99.90,  -0.08,
05/15 10Z,   1.00,   5.62,   6.43,  99.90,  -0.19,
05/15 11Z,   1.00,   4.46,   5.30,  99.90,  -0.16,
05/15 12Z,   1.00,   3.37,   4.26,  99.90,  -0.11,
05/15 13Z,   1.00,   2.37,   3.28,  99.90,  -0.09,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/15 14Z,   1.00,   1.47,  99.90,   2.38,  -0.09,
05/15 15Z,   1.00,   0.93,  99.90,   1.84,  -0.09,  (min)
05/15 16Z,   0.90,   1.42,  99.90,   2.23,  -0.09,
05/15 17Z,   0.90,   2.88,  99.90,   3.69,  -0.09,
05/15 18Z,   0.90,   4.27,  99.90,   5.08,  -0.09,
05/15 19Z,   0.90,   5.11,  99.90,   5.92,  -0.09,
05/15 20Z,   0.90,   5.66,  99.90,   6.48,  -0.09,
05/15 21Z,   0.90,   5.72,  99.90,   6.54,  -0.09,  (max)
05/15 22Z,   0.90,   5.05,  99.90,   5.86,  -0.09,
05/15 23Z,   0.90,   4.01,  99.90,   4.82,  -0.09,
05/16 00Z,   0.90,   2.97,  99.90,   3.78,  -0.09,
05/16 01Z,   0.90,   2.08,  99.90,   2.89,  -0.09,
05/16 02Z,   0.90,   1.45,  99.90,   2.27,  -0.09,
05/16 03Z,   0.90,   1.20,  99.90,   2.01,  -0.09,  (min)
05/16 04Z,   0.90,   1.80,  99.90,   2.62,  -0.09,
05/16 05Z,   0.90,   3.52,  99.90,   4.33,  -0.09,
05/16 06Z,   0.90,   5.41,  99.90,   6.23,  -0.09,
05/16 07Z,   0.90,   6.52,  99.90,   7.34,  -0.09,
05/16 08Z,   0.90,   6.99,  99.90,   7.80,  -0.09,
05/16 09Z,   0.90,   6.99,  99.90,   7.81,  -0.09,  (max)
05/16 10Z,   0.90,   6.32,  99.90,   7.13,  -0.09,
05/16 11Z,   0.90,   5.17,  99.90,   5.99,  -0.09,
05/16 12Z,   0.90,   4.01,  99.90,   4.82,  -0.09,
05/16 13Z,   0.90,   2.94,  99.90,   3.75,  -0.09,
05/16 14Z,   0.90,   2.00,  99.90,   2.82,  -0.09,
05/16 15Z,   0.90,   1.24,  99.90,   2.05,  -0.09,
05/16 16Z,   0.90,   0.96,  99.90,   1.78,  -0.09,  (min)
05/16 17Z,   0.90,   1.79,  99.90,   2.60,  -0.09,
05/16 18Z,   0.90,   3.39,  99.90,   4.21,  -0.09,
05/16 19Z,   0.90,   4.67,  99.90,   5.49,  -0.09,
05/16 20Z,   0.90,   5.35,  99.90,   6.17,  -0.09,
05/16 21Z,   0.90,   5.73,  99.90,   6.55,  -0.09,  (max)
05/16 22Z,   0.90,   5.57,  99.90,   6.38,  -0.09,
05/16 23Z,   0.90,   4.73,  99.90,   5.55,  -0.09,
05/17 00Z,   0.90,   3.65,  99.90,   4.46,  -0.09,
05/17 01Z,   0.90,   2.61,  99.90,   3.43,  -0.09,
05/17 02Z,   0.90,   1.78,  99.90,   2.59,  -0.09,
05/17 03Z,   0.90,   1.26,  99.90,   2.08,  -0.09,
05/17 04Z,   0.90,   1.21,  99.90,   2.03,  -0.09,  (min)
05/17 05Z,   0.90,   2.12,  99.90,   2.94,  -0.09,
05/17 06Z,   0.90,   4.04,  99.90,   4.85,  -0.09,
05/17 07Z,   0.90,   5.85,  99.90,   6.67,  -0.09,
05/17 08Z,   0.90,   6.76,  99.90,   7.57,  -0.09,
05/17 09Z,   0.90,   7.05,  99.90,   7.86,  -0.09,  (max)
05/17 10Z,   0.90,   6.85,  99.90,   7.67,  -0.09,
05/17 11Z,   0.90,   6.00,  99.90,   6.81,  -0.09,
05/17 12Z,   0.90,   4.79,  99.90,   5.60,  -0.09,
05/17 13Z,   0.90,   3.61,  99.90,   4.43,  -0.09,
05/17 14Z,   1.00,   2.57,  99.90,   3.48,  -0.09,
05/17 15Z,   1.00,   1.70,  99.90,   2.62,  -0.09,
05/17 16Z,   1.00,   1.07,  99.90,   1.98,  -0.09,
05/17 17Z,   1.00,   1.05,  99.90,   1.97,  -0.09,  (min)
05/17 18Z,   1.00,   2.16,  99.90,   3.08,  -0.09,
05/17 19Z,   1.00,   3.83,  99.90,   4.75,  -0.09,
05/17 20Z,   1.00,   4.99,  99.90,   5.90,  -0.09,
05/17 21Z,   0.90,   5.54,  99.90,   6.36,  -0.09,
05/17 22Z,   0.90,   5.79,  99.90,   6.60,  -0.09,  (max)
05/17 23Z,   0.90,   5.44,  99.90,   6.26,  -0.09,
05/18 00Z,   0.90,   4.49,  99.90,   5.30,  -0.09,
05/18 01Z,   0.80,   3.37,  99.90,   4.09,  -0.09,
05/18 02Z,   0.80,   2.35,  99.90,   3.06,  -0.09,
05/18 03Z,   0.80,   1.57,  99.90,   2.28,  -0.09,
05/18 04Z,   0.90,   1.15,  99.90,   1.96,  -0.09,  (min)
05/18 05Z,   0.90,   1.27,  99.90,   2.09,  -0.09,
05/18 06Z,   0.90,   2.43,  99.90,   3.24,  -0.09,
05/18 07Z,   0.90,   4.44,  99.90,   5.26,  -0.09,
05/18 08Z,   0.90,   6.12,  99.90,   6.94,  -0.09,
05/18 09Z,   0.90,   6.85,  99.90,   7.67,  -0.09,
05/18 10Z,   0.80,   7.03,  99.90,   7.74,  -0.09,  (max)
05/18 11Z,   0.80,   6.69,  99.90,   7.41,  -0.09,
05/18 12Z,   0.80,   5.72,  99.90,   6.43,  -0.09,
05/18 13Z,   0.70,   4.47,  99.90,   5.08,  -0.09,
05/18 14Z,   0.70,   3.29,  99.90,   3.90,  -0.09,
05/18 15Z,   0.70,   2.27,  99.90,   2.89,  -0.09,
05/18 16Z,   0.70,   1.47,  99.90,   2.08,  -0.09,
05/18 17Z,   0.70,   0.96,  99.90,   1.57,  -0.09,  (min)
05/18 18Z,   0.70,   1.18,  99.90,   1.79,  -0.09,
05/18 19Z,   0.60,   2.50,  99.90,   3.02,  -0.09,
05/18 20Z,   0.60,   4.18,  99.90,   4.70,  -0.09,
05/18 21Z,   0.50,   5.22,  99.90,   5.64,  -0.09,
05/18 22Z,   0.50,   5.71,  99.90,   6.12,  -0.09,
05/18 23Z,   0.50,   5.86,  99.90,   6.28,  -0.09,  (max)
05/19 00Z,   0.50,   5.38,  99.90,   5.80,  -0.09,
05/19 01Z,   0.50,   4.35,  99.90,   4.76,  -0.09,
05/19 02Z,   0.50,   3.21,  99.90,   3.62,  -0.09,
05/19 03Z,   0.50,   2.19,  99.90,   2.61,  -0.09,
05/19 04Z,   0.50,   1.46,  99.90,   1.87,  -0.09,
05/19 05Z,   0.40,   1.10,  99.90,   1.41,  -0.09,  (min)
05/19 06Z,   0.40,   1.35,  99.90,   1.66,  -0.09,