EXTRA-TROPICAL  STORM  SURGE
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Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
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Alaska
Gulf of Alaska
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Block Island, RI
Montauk Point NY
New London, CT
Bridgeport, CT
Port Jefferson NY
Kings Pnt, NY
The Battery, NY
Bergen Pnt, NY
Sandy Hook, NJ
Atlantic City, NJ
Cape May, NJ
Philadelphia, PA
Reedy Pnt, DE
Lewes, DE
Surge List
East Coast
#Sitka, AK : 12/17/2025 10:21:01 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/15 18Z,   1.90,   9.80,  10.76,  99.90,  -0.94,
12/15 19Z,   2.00,   9.56,  10.54,  99.90,  -1.02,  (max)
12/15 20Z,   2.00,   8.55,   9.49,  99.90,  -1.06,
12/15 21Z,   2.00,   6.93,   7.77,  99.90,  -1.16,
12/15 22Z,   1.90,   5.01,   5.74,  99.90,  -1.17,
12/15 23Z,   1.90,   3.18,   3.91,  99.90,  -1.17,
12/16 00Z,   1.80,   1.81,   2.36,  99.90,  -1.25,
12/16 01Z,   1.90,   1.17,   1.69,  99.90,  -1.38,  (min)
12/16 02Z,   1.80,   1.35,   1.80,  99.90,  -1.35,
12/16 03Z,   1.80,   2.26,   2.75,  99.90,  -1.31,
12/16 04Z,   1.80,   3.66,   4.09,  99.90,  -1.37,
12/16 05Z,   1.70,   5.19,   5.64,  99.90,  -1.25,
12/16 06Z,   1.50,   6.50,   7.04,  99.90,  -0.96,
12/16 07Z,   1.40,   7.30,   7.86,  99.90,  -0.84,
12/16 08Z,   1.30,   7.47,   7.98,  99.90,  -0.79,  (max)
12/16 09Z,   1.30,   7.04,   7.49,  99.90,  -0.85,
12/16 10Z,   1.30,   6.22,   6.69,  99.90,  -0.83,
12/16 11Z,   1.20,   5.32,   5.74,  99.90,  -0.78,
12/16 12Z,   0.90,   4.67,   4.99,  99.90,  -0.58,
12/16 13Z,   0.90,   4.53,   4.79,  99.90,  -0.64,  (min)
12/16 14Z,   1.00,   5.01,   5.27,  99.90,  -0.74,
12/16 15Z,   1.00,   6.06,   6.24,  99.90,  -0.82,
12/16 16Z,   1.00,   7.43,   7.56,  99.90,  -0.87,
12/16 17Z,   0.80,   8.79,   8.90,  99.90,  -0.69,
12/16 18Z,   0.50,   9.77,   9.87,  99.90,  -0.40,
12/16 19Z,   0.60,  10.05,  10.23,  99.90,  -0.42,  (max)
12/16 20Z,   0.60,   9.50,   9.79,  99.90,  -0.31,
12/16 21Z,   0.60,   8.15,   8.43,  99.90,  -0.32,
12/16 22Z,   0.60,   6.23,   6.57,  99.90,  -0.26,
12/16 23Z,   0.60,   4.12,   4.41,  99.90,  -0.31,
12/17 00Z,   0.40,   2.24,   2.49,  99.90,  -0.15,
12/17 01Z,   0.40,   0.96,   1.23,  99.90,  -0.13,
12/17 02Z,   0.50,   0.55,   0.78,  99.90,  -0.27,  (min)
12/17 03Z,   0.50,   1.04,   1.16,  99.90,  -0.38,
12/17 04Z,   0.60,   2.28,   2.42,  99.90,  -0.46,
12/17 05Z,   0.60,   3.96,   4.16,  99.90,  -0.40,
12/17 06Z,   0.60,   5.68,   5.93,  99.90,  -0.35,
12/17 07Z,   0.60,   7.05,   7.34,  99.90,  -0.31,
12/17 08Z,   0.50,   7.81,   8.15,  99.90,  -0.16,
12/17 09Z,   0.60,   7.84,   8.30,  99.90,  -0.14,  (max)
12/17 10Z,   0.60,   7.27,   7.72,  99.90,  -0.15,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/17 11Z,   0.60,   6.33,  99.90,   6.76,  -0.18,
12/17 12Z,   0.50,   5.40,  99.90,   5.69,  -0.21,
12/17 13Z,   0.50,   4.81,  99.90,   5.07,  -0.24,
12/17 14Z,   0.50,   4.81,  99.90,   5.04,  -0.27,  (min)
12/17 15Z,   0.50,   5.47,  99.90,   5.67,  -0.30,
12/17 16Z,   0.50,   6.67,  99.90,   6.84,  -0.33,
12/17 17Z,   0.50,   8.12,  99.90,   8.25,  -0.36,
12/17 18Z,   0.50,   9.42,  99.90,   9.53,  -0.39,
12/17 19Z,   0.50,  10.20,  99.90,  10.28,  -0.42,  (max)
12/17 20Z,   0.40,  10.18,  99.90,  10.13,  -0.45,
12/17 21Z,   0.50,   9.25,  99.90,   9.27,  -0.48,
12/17 22Z,   0.40,   7.54,  99.90,   7.43,  -0.51,
12/17 23Z,   0.30,   5.35,  99.90,   5.14,  -0.51,
12/18 00Z,   0.30,   3.11,  99.90,   2.90,  -0.51,
12/18 01Z,   0.30,   1.29,  99.90,   1.07,  -0.51,
12/18 02Z,   0.30,   0.24,  99.90,   0.03,  -0.51,  (min)
12/18 03Z,   0.40,   0.18,  99.90,   0.06,  -0.51,
12/18 04Z,   0.40,   1.06,  99.90,   0.95,  -0.51,
12/18 05Z,   0.40,   2.66,  99.90,   2.54,  -0.51,
12/18 06Z,   0.40,   4.58,  99.90,   4.47,  -0.51,
12/18 07Z,   0.40,   6.39,  99.90,   6.28,  -0.51,
12/18 08Z,   0.30,   7.70,  99.90,   7.49,  -0.51,
12/18 09Z,   0.30,   8.27,  99.90,   8.06,  -0.51,  (max)
12/18 10Z,   0.20,   8.07,  99.90,   7.76,  -0.51,
12/18 11Z,   0.20,   7.28,  99.90,   6.96,  -0.51,
12/18 12Z,   0.30,   6.21,  99.90,   6.00,  -0.51,
12/18 13Z,   0.30,   5.28,  99.90,   5.07,  -0.51,
12/18 14Z,   0.40,   4.81,  99.90,   4.70,  -0.51,  (min)
12/18 15Z,   0.50,   5.03,  99.90,   5.01,  -0.51,
12/18 16Z,   0.50,   5.92,  99.90,   5.91,  -0.51,
12/18 17Z,   0.50,   7.30,  99.90,   7.28,  -0.51,
12/18 18Z,   0.40,   8.80,  99.90,   8.68,  -0.51,
12/18 19Z,   0.40,  10.00,  99.90,   9.88,  -0.51,
12/18 20Z,   0.50,  10.51,  99.90,  10.50,  -0.51,  (max)
12/18 21Z,   0.50,  10.12,  99.90,  10.10,  -0.51,
12/18 22Z,   0.50,   8.78,  99.90,   8.77,  -0.51,
12/18 23Z,   0.50,   6.72,  99.90,   6.71,  -0.51,
12/19 00Z,   0.50,   4.33,  99.90,   4.32,  -0.51,
12/19 01Z,   0.60,   2.08,  99.90,   2.17,  -0.51,
12/19 02Z,   0.60,   0.44,  99.90,   0.53,  -0.51,
12/19 03Z,   0.50,  -0.25,  99.90,  -0.27,  -0.51,  (min)
12/19 04Z,   0.50,   0.11,  99.90,   0.10,  -0.51,
12/19 05Z,   0.60,   1.41,  99.90,   1.50,  -0.51,
12/19 06Z,   0.60,   3.32,  99.90,   3.41,  -0.51,
12/19 07Z,   0.60,   5.40,  99.90,   5.48,  -0.51,
12/19 08Z,   0.60,   7.17,  99.90,   7.25,  -0.51,
12/19 09Z,   0.60,   8.28,  99.90,   8.36,  -0.51,
12/19 10Z,   0.60,   8.56,  99.90,   8.64,  -0.51,  (max)
12/19 11Z,   0.60,   8.06,  99.90,   8.15,  -0.51,
12/19 12Z,   0.60,   7.04,  99.90,   7.13,  -0.51,
12/19 13Z,   0.60,   5.90,  99.90,   5.99,  -0.51,
12/19 14Z,   0.60,   5.04,  99.90,   5.13,  -0.51,
12/19 15Z,   0.50,   4.79,  99.90,   4.77,  -0.51,  (min)
12/19 16Z,   0.40,   5.27,  99.90,   5.16,  -0.51,
12/19 17Z,   0.30,   6.43,  99.90,   6.21,  -0.51,
12/19 18Z,   0.30,   7.95,  99.90,   7.74,  -0.51,
12/19 19Z,   0.20,   9.44,  99.90,   9.13,  -0.51,
12/19 20Z,   0.20,  10.45,  99.90,  10.14,  -0.51,
12/19 21Z,   0.20,  10.63,  99.90,  10.31,  -0.51,  (max)
12/19 22Z,   0.20,   9.81,  99.90,   9.50,  -0.51,
12/19 23Z,   0.20,   8.08,  99.90,   7.77,  -0.51,
12/20 00Z,   0.20,   5.74,  99.90,   5.42,  -0.51,
12/20 01Z,   0.20,   3.25,  99.90,   2.93,  -0.51,
12/20 02Z,   0.20,   1.12,  99.90,   0.80,  -0.51,
12/20 03Z,   0.20,  -0.21,  99.90,  -0.52,  -0.51,
12/20 04Z,   0.20,  -0.47,  99.90,  -0.79,  -0.51,  (min)
12/20 05Z,   0.10,   0.35,  99.90,  -0.07,  -0.51,
12/20 06Z,   0.00,   2.03,  99.90,   1.52,  -0.51,
12/20 07Z,   0.00,   4.17,  99.90,   3.65,  -0.51,
12/20 08Z,   0.00,   6.26,  99.90,   5.75,  -0.51,
12/20 09Z,   0.00,   7.86,  99.90,   7.35,  -0.51,
12/20 10Z,   0.00,   8.67,  99.90,   8.16,  -0.51,  (max)
12/20 11Z,   0.00,   8.60,  99.90,   8.09,  -0.51,
12/20 12Z,   0.10,   7.80,  99.90,   7.39,  -0.51,
12/20 13Z,   0.10,   6.62,  99.90,   6.21,  -0.51,
12/20 14Z,   0.10,   5.48,  99.90,   5.07,  -0.51,
12/20 15Z,   0.00,   4.79,  99.90,   4.28,  -0.51,  (min)
12/20 16Z,   0.00,   4.82,  99.90,   4.30,  -0.51,
12/20 17Z,   0.00,   5.61,  99.90,   5.09,  -0.51,
12/20 18Z,   0.00,   6.99,  99.90,   6.48,  -0.51,
12/20 19Z,   0.00,   8.60,  99.90,   8.09,  -0.51,
12/20 20Z,   0.00,   9.98,  99.90,   9.47,  -0.51,
12/20 21Z,   0.00,  10.71,  99.90,  10.20,  -0.51,  (max)
12/20 22Z,   0.00,  10.48,  99.90,   9.97,  -0.51,
12/20 23Z,   0.00,   9.24,  99.90,   8.73,  -0.51,
12/21 00Z,   0.00,   7.16,  99.90,   6.65,  -0.51,
12/21 01Z,  99.90,   4.64,  99.90,  99.90,  -0.51,
12/21 02Z,  99.90,   2.19,  99.90,  99.90,  -0.51,
12/21 03Z,  99.90,   0.31,  99.90,  99.90,  -0.51,
12/21 04Z,  99.90,  -0.61,  99.90,  99.90,  -0.51,
12/21 05Z,  99.90,  -0.39,  99.90,  99.90,  -0.51,
12/21 06Z,  99.90,   0.86,  99.90,  99.90,  -0.51,