EXTRA-TROPICAL  STORM  SURGE
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Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
Mid-Atlantic
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Alaska
Gulf of Alaska
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Apalachicola, FL
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Sabine Pass, TX
Galveston, TX
Freeport, TX
Port Aransas, TX
Padre Island, TX
Surge List
Gulf Coast
#Portland, ME : 04/27/2025 07:20:51 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/25 12Z,   0.20,   8.74,   8.61,  99.90,  -0.33,
04/25 13Z,   0.10,   9.87,   9.64,  99.90,  -0.33,
04/25 14Z,   0.10,   9.83,   9.69,  99.90,  -0.24,  (max)
04/25 15Z,   0.10,   8.65,   8.51,  99.90,  -0.24,
04/25 16Z,   0.10,   6.49,   6.38,  99.90,  -0.21,
04/25 17Z,   0.00,   3.83,   3.70,  99.90,  -0.13,
04/25 18Z,   0.10,   1.43,   1.37,  99.90,  -0.16,
04/25 19Z,   0.10,  -0.04,  -0.06,  99.90,  -0.12,
04/25 20Z,   0.10,  -0.23,  -0.25,  99.90,  -0.12,  (min)
04/25 21Z,   0.20,   0.85,   0.84,  99.90,  -0.21,
04/25 22Z,   0.20,   3.01,   3.02,  99.90,  -0.19,
04/25 23Z,   0.30,   5.74,   5.72,  99.90,  -0.32,
04/26 00Z,   0.30,   8.31,   8.26,  99.90,  -0.35,
04/26 01Z,   0.30,  10.02,   9.90,  99.90,  -0.42,
04/26 02Z,   0.30,  10.52,  10.38,  99.90,  -0.44,  (max)
04/26 03Z,   0.30,   9.78,   9.78,  99.90,  -0.30,
04/26 04Z,   0.30,   7.87,   7.89,  99.90,  -0.28,
04/26 05Z,   0.30,   5.16,   5.19,  99.90,  -0.27,
04/26 06Z,   0.20,   2.33,   2.48,  99.90,  -0.05,
04/26 07Z,   0.30,   0.20,   0.35,  99.90,  -0.15,
04/26 08Z,   0.30,  -0.72,  -0.50,  99.90,  -0.08,  (min)
04/26 09Z,   0.30,  -0.26,   0.09,  99.90,   0.05,
04/26 10Z,   0.30,   1.45,   1.66,  99.90,  -0.09,
04/26 11Z,   0.30,   4.06,   4.42,  99.90,   0.06,
04/26 12Z,   0.40,   6.87,   7.33,  99.90,   0.06,
04/26 13Z,   0.50,   9.09,   9.37,  99.90,  -0.22,
04/26 14Z,   0.50,  10.22,  10.58,  99.90,  -0.14,  (max)
04/26 15Z,   0.60,  10.06,  10.44,  99.90,  -0.22,
04/26 16Z,   0.60,   8.66,   9.11,  99.90,  -0.15,
04/26 17Z,   0.70,   6.25,   6.71,  99.90,  -0.24,
04/26 18Z,   0.70,   3.39,   3.79,  99.90,  -0.30,
04/26 19Z,   0.70,   0.93,   1.44,  99.90,  -0.19,
04/26 20Z,   0.70,  -0.44,   0.00,  99.90,  -0.26,  (min)
04/26 21Z,   0.70,  -0.40,   0.15,  99.90,  -0.15,
04/26 22Z,   0.70,   1.01,   1.65,  99.90,  -0.06,
04/26 23Z,   0.60,   3.52,   4.10,  99.90,  -0.02,
04/27 00Z,   0.60,   6.52,   7.05,  99.90,  -0.07,
04/27 01Z,   0.60,   9.19,   9.67,  99.90,  -0.12,
04/27 02Z,   0.50,  10.82,  11.14,  99.90,  -0.18,
04/27 03Z,   0.40,  11.12,  11.34,  99.90,  -0.18,  (max)
04/27 04Z,   0.40,  10.04,  10.46,  99.90,   0.02,
04/27 05Z,   0.40,   7.75,   8.12,  99.90,  -0.03,
04/27 06Z,   0.40,   4.69,   4.94,  99.90,  -0.15,
04/27 07Z,   0.30,   1.65,   1.99,  99.90,   0.04,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/27 08Z,   0.20,  -0.54,  99.90,  -0.31,   0.03,
04/27 09Z,   0.10,  -1.35,  99.90,  -1.24,   0.01,  (min)
04/27 10Z,   0.10,  -0.68,  99.90,  -0.58,  -0.00,
04/27 11Z,   0.10,   1.32,  99.90,   1.41,  -0.02,
04/27 12Z,   0.00,   4.19,  99.90,   4.15,  -0.04,
04/27 13Z,   0.00,   7.15,  99.90,   7.10,  -0.05,
04/27 14Z,   0.00,   9.40,  99.90,   9.33,  -0.07,
04/27 15Z,   0.00,  10.43,  99.90,  10.35,  -0.08,  (max)
04/27 16Z,   0.00,  10.11,  99.90,  10.01,  -0.10,
04/27 17Z,   0.00,   8.50,  99.90,   8.38,  -0.12,
04/27 18Z,   0.00,   5.88,  99.90,   5.75,  -0.13,
04/27 19Z,   0.00,   2.92,  99.90,   2.77,  -0.15,
04/27 20Z,   0.00,   0.51,  99.90,   0.36,  -0.15,
04/27 21Z,   0.00,  -0.66,  99.90,  -0.81,  -0.15,  (min)
04/27 22Z,   0.00,  -0.34,  99.90,  -0.49,  -0.15,
04/27 23Z,   0.00,   1.39,  99.90,   1.24,  -0.15,
04/28 00Z,   0.00,   4.18,  99.90,   4.03,  -0.15,
04/28 01Z,  -0.10,   7.32,  99.90,   7.07,  -0.15,
04/28 02Z,   0.00,   9.95,  99.90,   9.81,  -0.15,
04/28 03Z,   0.00,  11.42,  99.90,  11.27,  -0.15,
04/28 04Z,   0.00,  11.44,  99.90,  11.29,  -0.15,  (max)
04/28 05Z,   0.00,  10.05,  99.90,   9.90,  -0.15,
04/28 06Z,   0.00,   7.43,  99.90,   7.29,  -0.15,
04/28 07Z,   0.10,   4.14,  99.90,   4.09,  -0.15,
04/28 08Z,   0.20,   1.02,  99.90,   1.07,  -0.15,
04/28 09Z,   0.20,  -1.09,  99.90,  -1.04,  -0.15,
04/28 10Z,   0.30,  -1.73,  99.90,  -1.57,  -0.15,  (min)
04/28 11Z,   0.30,  -0.82,  99.90,  -0.66,  -0.15,
04/28 12Z,   0.40,   1.41,  99.90,   1.67,  -0.15,
04/28 13Z,   0.40,   4.43,  99.90,   4.68,  -0.15,
04/28 14Z,   0.40,   7.42,  99.90,   7.67,  -0.15,
04/28 15Z,   0.40,   9.57,  99.90,   9.83,  -0.15,
04/28 16Z,   0.40,  10.46,  99.90,  10.71,  -0.15,  (max)
04/28 17Z,   0.40,   9.96,  99.90,  10.21,  -0.15,
04/28 18Z,   0.40,   8.17,  99.90,   8.43,  -0.15,
04/28 19Z,   0.50,   5.45,  99.90,   5.80,  -0.15,
04/28 20Z,   0.50,   2.51,  99.90,   2.87,  -0.15,
04/28 21Z,   0.60,   0.27,  99.90,   0.72,  -0.15,
04/28 22Z,   0.70,  -0.65,  99.90,  -0.10,  -0.15,  (min)
04/28 23Z,   0.70,  -0.06,  99.90,   0.50,  -0.15,
04/29 00Z,   0.70,   1.92,  99.90,   2.47,  -0.15,
04/29 01Z,   0.70,   4.85,  99.90,   5.40,  -0.15,
04/29 02Z,   0.60,   7.99,  99.90,   8.44,  -0.15,
04/29 03Z,   0.50,  10.47,  99.90,  10.82,  -0.15,
04/29 04Z,   0.50,  11.69,  99.90,  12.04,  -0.15,  0.05 ft above HAT  (max)
04/29 05Z,   0.40,  11.45,  99.90,  11.70,  -0.15,
04/29 06Z,   0.40,   9.80,  99.90,  10.05,  -0.15,
04/29 07Z,   0.40,   6.99,  99.90,   7.24,  -0.15,
04/29 08Z,   0.50,   3.62,  99.90,   3.97,  -0.15,
04/29 09Z,   0.50,   0.57,  99.90,   0.93,  -0.15,
04/29 10Z,   0.60,  -1.36,  99.90,  -0.90,  -0.15,
04/29 11Z,   0.70,  -1.78,  99.90,  -1.23,  -0.15,  (min)
04/29 12Z,   0.70,  -0.68,  99.90,  -0.13,  -0.15,
04/29 13Z,   0.70,   1.67,  99.90,   2.23,  -0.15,
04/29 14Z,   0.70,   4.71,  99.90,   5.26,  -0.15,
04/29 15Z,   0.70,   7.59,  99.90,   8.14,  -0.15,
04/29 16Z,   0.70,   9.57,  99.90,  10.12,  -0.15,
04/29 17Z,   0.70,  10.28,  99.90,  10.83,  -0.15,  (max)
04/29 18Z,   0.70,   9.64,  99.90,  10.19,  -0.15,
04/29 19Z,   0.70,   7.76,  99.90,   8.31,  -0.15,
04/29 20Z,   0.70,   5.04,  99.90,   5.60,  -0.15,
04/29 21Z,   0.70,   2.25,  99.90,   2.81,  -0.15,
04/29 22Z,   0.70,   0.25,  99.90,   0.80,  -0.15,
04/29 23Z,   0.70,  -0.41,  99.90,   0.14,  -0.15,  (min)
04/30 00Z,   0.70,   0.40,  99.90,   0.95,  -0.15,
04/30 01Z,   0.60,   2.50,  99.90,   2.95,  -0.15,
04/30 02Z,   0.60,   5.43,  99.90,   5.88,  -0.15,
04/30 03Z,   0.50,   8.42,  99.90,   8.78,  -0.15,
04/30 04Z,   0.40,  10.66,  99.90,  10.92,  -0.15,
04/30 05Z,   0.40,  11.63,  99.90,  11.88,  -0.15,  (max)
04/30 06Z,   0.30,  11.17,  99.90,  11.33,  -0.15,
04/30 07Z,   0.30,   9.38,  99.90,   9.53,  -0.15,
04/30 08Z,   0.20,   6.53,  99.90,   6.58,  -0.15,
04/30 09Z,   0.20,   3.24,  99.90,   3.29,  -0.15,
04/30 10Z,   0.10,   0.39,  99.90,   0.35,  -0.15,
04/30 11Z,   0.10,  -1.30,  99.90,  -1.35,  -0.15,
04/30 12Z,   0.10,  -1.53,  99.90,  -1.58,  -0.15,  (min)
04/30 13Z,   0.00,  -0.33,  99.90,  -0.48,  -0.15,
04/30 14Z,   0.00,   2.03,  99.90,   1.88,  -0.15,
04/30 15Z,   0.00,   4.94,  99.90,   4.80,  -0.15,
04/30 16Z,   0.00,   7.62,  99.90,   7.47,  -0.15,
04/30 17Z,   0.00,   9.39,  99.90,   9.24,  -0.15,
04/30 18Z,   0.00,   9.93,  99.90,   9.79,  -0.15,  (max)
04/30 19Z,   0.00,   9.21,  99.90,   9.07,  -0.15,
04/30 20Z,   0.00,   7.35,  99.90,   7.20,  -0.15,
04/30 21Z,   0.00,   4.75,  99.90,   4.60,  -0.15,
04/30 22Z,   0.10,   2.19,  99.90,   2.14,  -0.15,
04/30 23Z,   0.20,   0.45,  99.90,   0.51,  -0.15,
05/01 00Z,   0.30,   0.01,  99.90,   0.16,  -0.15,