EXTRA-TROPICAL  STORM  SURGE
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hat-on
mhhw-on
msl-on
mllw-on
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Gulf of Alaska
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Eastport, ME
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The Battery, NY
Bergen Pnt, NY
Sandy Hook, NJ
Atlantic City, NJ
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Philadelphia, PA
Reedy Pnt, DE
Lewes, DE
Surge List
East Coast
#Portland, ME : 08/19/2026 13:21:56 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/17 18Z,   0.50,   8.83,   9.16,  99.90,  -0.17,
08/17 19Z,   0.50,   9.73,  10.08,  99.90,  -0.15,  (max)
08/17 20Z,   0.50,   9.56,  10.01,  99.90,  -0.05,
08/17 21Z,   0.60,   8.31,   8.85,  99.90,  -0.06,
08/17 22Z,   0.60,   6.19,   6.75,  99.90,  -0.04,
08/17 23Z,   0.60,   3.75,   4.36,  99.90,   0.01,
08/18 00Z,   0.60,   1.70,   2.31,  99.90,   0.01,
08/18 01Z,   0.60,   0.53,   1.03,  99.90,  -0.10,
08/18 02Z,   0.60,   0.43,   0.99,  99.90,  -0.04,  (min)
08/18 03Z,   0.60,   1.41,   1.84,  99.90,  -0.17,
08/18 04Z,   0.60,   3.30,   3.57,  99.90,  -0.33,
08/18 05Z,   0.60,   5.57,   5.89,  99.90,  -0.28,
08/18 06Z,   0.50,   7.57,   7.82,  99.90,  -0.25,
08/18 07Z,   0.50,   8.82,   9.00,  99.90,  -0.32,
08/18 08Z,   0.50,   9.10,   9.41,  99.90,  -0.19,  (max)
08/18 09Z,   0.50,   8.37,   8.81,  99.90,  -0.06,
08/18 10Z,   0.50,   6.72,   7.24,  99.90,   0.02,
08/18 11Z,   0.50,   4.53,   5.06,  99.90,   0.03,
08/18 12Z,   0.50,   2.47,   3.02,  99.90,   0.05,
08/18 13Z,   0.50,   1.12,   1.72,  99.90,   0.10,
08/18 14Z,   0.50,   0.75,   1.27,  99.90,   0.02,  (min)
08/18 15Z,   0.40,   1.42,   1.89,  99.90,   0.07,
08/18 16Z,   0.50,   3.03,   3.51,  99.90,  -0.02,
08/18 17Z,   0.50,   5.21,   5.68,  99.90,  -0.03,
08/18 18Z,   0.50,   7.35,   7.81,  99.90,  -0.04,
08/18 19Z,   0.50,   8.86,   9.31,  99.90,  -0.05,
08/18 20Z,   0.50,   9.47,   9.97,  99.90,  -0.00,  (max)
08/18 21Z,   0.50,   9.10,   9.57,  99.90,  -0.03,
08/18 22Z,   0.50,   7.78,   8.30,  99.90,   0.02,
08/18 23Z,   0.50,   5.73,   6.18,  99.90,  -0.05,
08/19 00Z,   0.50,   3.52,   4.07,  99.90,   0.05,
08/19 01Z,   0.50,   1.76,   2.26,  99.90,   0.00,
08/19 02Z,   0.50,   0.83,   1.32,  99.90,  -0.01,
08/19 03Z,   0.50,   0.87,   1.31,  99.90,  -0.06,  (min)
08/19 04Z,   0.50,   1.85,   2.21,  99.90,  -0.14,
08/19 05Z,   0.50,   3.60,   3.97,  99.90,  -0.13,
08/19 06Z,   0.50,   5.63,   6.04,  99.90,  -0.09,
08/19 07Z,   0.50,   7.34,   7.69,  99.90,  -0.15,
08/19 08Z,   0.60,   8.33,   8.71,  99.90,  -0.22,
08/19 09Z,   0.50,   8.46,   8.91,  99.90,  -0.05,  (max)
08/19 10Z,   0.60,   7.71,   8.14,  99.90,  -0.17,
08/19 11Z,   0.60,   6.17,   6.60,  99.90,  -0.17,
08/19 12Z,   0.60,   4.24,   4.68,  99.90,  -0.16,
08/19 13Z,   0.50,   2.52,   2.98,  99.90,  -0.04,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/19 14Z,   0.50,   1.50,  99.90,   1.95,  -0.05,
08/19 15Z,   0.50,   1.35,  99.90,   1.80,  -0.05,  (min)
08/19 16Z,   0.50,   2.11,  99.90,   2.56,  -0.06,
08/19 17Z,   0.50,   3.68,  99.90,   4.12,  -0.06,
08/19 18Z,   0.50,   5.68,  99.90,   6.11,  -0.06,
08/19 19Z,   0.50,   7.53,  99.90,   7.96,  -0.07,
08/19 20Z,   0.50,   8.75,  99.90,   9.18,  -0.07,
08/19 21Z,   0.50,   9.14,  99.90,   9.56,  -0.08,  (max)
08/19 22Z,   0.50,   8.66,  99.90,   9.07,  -0.08,
08/19 23Z,   0.50,   7.33,  99.90,   7.74,  -0.09,
08/20 00Z,   0.50,   5.41,  99.90,   5.82,  -0.09,
08/20 01Z,   0.40,   3.42,  99.90,   3.73,  -0.10,
08/20 02Z,   0.40,   1.91,  99.90,   2.21,  -0.10,
08/20 03Z,   0.40,   1.16,  99.90,   1.46,  -0.10,  (min)
08/20 04Z,   0.40,   1.25,  99.90,   1.55,  -0.10,
08/20 05Z,   0.30,   2.19,  99.90,   2.39,  -0.10,
08/20 06Z,   0.30,   3.79,  99.90,   3.99,  -0.10,
08/20 07Z,   0.40,   5.59,  99.90,   5.89,  -0.10,
08/20 08Z,   0.40,   7.06,  99.90,   7.36,  -0.10,
08/20 09Z,   0.40,   7.87,  99.90,   8.18,  -0.10,
08/20 10Z,   0.40,   7.94,  99.90,   8.24,  -0.10,  (max)
08/20 11Z,   0.40,   7.22,  99.90,   7.52,  -0.10,
08/20 12Z,   0.40,   5.81,  99.90,   6.11,  -0.10,
08/20 13Z,   0.40,   4.11,  99.90,   4.42,  -0.10,
08/20 14Z,   0.40,   2.68,  99.90,   2.98,  -0.10,
08/20 15Z,   0.40,   1.88,  99.90,   2.19,  -0.10,
08/20 16Z,   0.40,   1.86,  99.90,   2.17,  -0.10,  (min)
08/20 17Z,   0.50,   2.64,  99.90,   3.05,  -0.10,
08/20 18Z,   0.50,   4.13,  99.90,   4.53,  -0.10,
08/20 19Z,   0.50,   5.95,  99.90,   6.35,  -0.10,
08/20 20Z,   0.50,   7.57,  99.90,   7.98,  -0.10,
08/20 21Z,   0.50,   8.59,  99.90,   8.99,  -0.10,
08/20 22Z,   0.50,   8.85,  99.90,   9.25,  -0.10,  (max)
08/20 23Z,   0.50,   8.31,  99.90,   8.72,  -0.10,
08/21 00Z,   0.60,   7.02,  99.90,   7.53,  -0.10,
08/21 01Z,   0.60,   5.23,  99.90,   5.73,  -0.10,
08/21 02Z,   0.50,   3.42,  99.90,   3.83,  -0.10,
08/21 03Z,   0.50,   2.08,  99.90,   2.48,  -0.10,
08/21 04Z,   0.50,   1.41,  99.90,   1.82,  -0.10,
08/21 05Z,   0.40,   1.51,  99.90,   1.81,  -0.10,  (min)
08/21 06Z,   0.40,   2.38,  99.90,   2.69,  -0.10,
08/21 07Z,   0.40,   3.86,  99.90,   4.17,  -0.10,
08/21 08Z,   0.40,   5.50,  99.90,   5.80,  -0.10,
08/21 09Z,   0.40,   6.81,  99.90,   7.11,  -0.10,
08/21 10Z,   0.40,   7.54,  99.90,   7.84,  -0.10,
08/21 11Z,   0.40,   7.59,  99.90,   7.89,  -0.10,  (max)
08/21 12Z,   0.40,   6.92,  99.90,   7.22,  -0.10,
08/21 13Z,   0.40,   5.62,  99.90,   5.93,  -0.10,
08/21 14Z,   0.40,   4.10,  99.90,   4.40,  -0.10,
08/21 15Z,   0.40,   2.84,  99.90,   3.14,  -0.10,
08/21 16Z,   0.40,   2.17,  99.90,   2.47,  -0.10,  (min)
08/21 17Z,   0.40,   2.20,  99.90,   2.50,  -0.10,
08/21 18Z,   0.40,   2.97,  99.90,   3.27,  -0.10,
08/21 19Z,   0.40,   4.38,  99.90,   4.69,  -0.10,
08/21 20Z,   0.50,   6.08,  99.90,   6.49,  -0.10,
08/21 21Z,   0.50,   7.56,  99.90,   7.97,  -0.10,
08/21 22Z,   0.50,   8.47,  99.90,   8.87,  -0.10,
08/21 23Z,   0.50,   8.67,  99.90,   9.07,  -0.10,  (max)
08/22 00Z,   0.50,   8.13,  99.90,   8.53,  -0.10,
08/22 01Z,   0.50,   6.86,  99.90,   7.27,  -0.10,
08/22 02Z,   0.50,   5.14,  99.90,   5.54,  -0.10,
08/22 03Z,   0.50,   3.44,  99.90,   3.84,  -0.10,
08/22 04Z,   0.40,   2.17,  99.90,   2.48,  -0.10,
08/22 05Z,   0.40,   1.53,  99.90,   1.83,  -0.10,  (min)
08/22 06Z,   0.40,   1.61,  99.90,   1.92,  -0.10,
08/22 07Z,   0.40,   2.46,  99.90,   2.76,  -0.10,
08/22 08Z,   0.40,   3.88,  99.90,   4.18,  -0.10,
08/22 09Z,   0.40,   5.43,  99.90,   5.74,  -0.10,
08/22 10Z,   0.40,   6.68,  99.90,   6.98,  -0.10,
08/22 11Z,   0.50,   7.38,  99.90,   7.79,  -0.10,
08/22 12Z,   0.50,   7.44,  99.90,   7.85,  -0.10,  (max)
08/22 13Z,   0.50,   6.79,  99.90,   7.20,  -0.10,
08/22 14Z,   0.50,   5.54,  99.90,   5.94,  -0.10,
08/22 15Z,   0.50,   4.09,  99.90,   4.49,  -0.10,
08/22 16Z,   0.50,   2.91,  99.90,   3.31,  -0.10,
08/22 17Z,   0.40,   2.28,  99.90,   2.59,  -0.10,  (min)
08/22 18Z,   0.40,   2.33,  99.90,   2.63,  -0.10,
08/22 19Z,   0.50,   3.10,  99.90,   3.51,  -0.10,
08/22 20Z,   0.50,   4.52,  99.90,   4.92,  -0.10,
08/22 21Z,   0.50,   6.18,  99.90,   6.59,  -0.10,
08/22 22Z,   0.60,   7.61,  99.90,   8.11,  -0.10,
08/22 23Z,   0.60,   8.47,  99.90,   8.97,  -0.10,
08/23 00Z,   0.60,   8.65,  99.90,   9.16,  -0.10,  (max)
08/23 01Z,   0.60,   8.09,  99.90,   8.59,  -0.10,
08/23 02Z,   0.70,   6.79,  99.90,   7.40,  -0.10,
08/23 03Z,   0.60,   5.06,  99.90,   5.56,  -0.10,
08/23 04Z,   0.60,   3.37,  99.90,   3.87,  -0.10,
08/23 05Z,   0.60,   2.11,  99.90,   2.62,  -0.10,
08/23 06Z,   0.60,   1.47,  99.90,   1.98,  -0.10,