EXTRA-TROPICAL  STORM  SURGE
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Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
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Gulf of Alaska
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Port Angeles, WA
Neah Bay, WA
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Crescent City, CA
North Spit, CA
Arena Cove, CA
Point Reyes, CA
Port Chicago, CA
San Francisco CA
Surge List
West Coast
#Wachapreague, VA : 04/18/2026 12:21:07 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/16 12Z,   0.30,   4.14,   4.58,  99.90,   0.14,
04/16 13Z,   0.20,   4.12,   4.43,  99.90,   0.11,  (max)
04/16 14Z,   0.20,   3.50,   3.70,  99.90,   0.00,
04/16 15Z,   0.20,   2.51,   2.70,  99.90,  -0.01,
04/16 16Z,   0.20,   1.45,   1.67,  99.90,   0.02,
04/16 17Z,   0.20,   0.47,   0.84,  99.90,   0.17,
04/16 18Z,   0.30,  -0.19,   0.37,  99.90,   0.26,  (min)
04/16 19Z,   0.30,  -0.14,   0.86,  99.90,   0.70,
04/16 20Z,   0.30,   0.72,   1.86,  99.90,   0.84,
04/16 21Z,   0.30,   2.00,   2.91,  99.90,   0.61,
04/16 22Z,   0.40,   3.21,   3.79,  99.90,   0.18,
04/16 23Z,   0.40,   4.17,   4.66,  99.90,   0.09,
04/17 00Z,   0.40,   4.85,   5.31,  99.90,   0.06,
04/17 01Z,   0.40,   5.08,   5.48,  99.90,   0.00,  (max)
04/17 02Z,   0.40,   4.67,   4.93,  99.90,  -0.14,
04/17 03Z,   0.40,   3.73,   3.97,  99.90,  -0.16,
04/17 04Z,   0.30,   2.55,   2.90,  99.90,   0.05,
04/17 05Z,   0.30,   1.30,   1.74,  99.90,   0.14,
04/17 06Z,   0.30,   0.19,   0.72,  99.90,   0.23,
04/17 07Z,   0.30,  -0.39,   0.15,  99.90,   0.24,  (min)
04/17 08Z,   0.30,  -0.11,   0.67,  99.90,   0.48,
04/17 09Z,   0.30,   0.87,   1.65,  99.90,   0.48,
04/17 10Z,   0.30,   2.02,   2.66,  99.90,   0.34,
04/17 11Z,   0.30,   3.00,   3.45,  99.90,   0.15,
04/17 12Z,   0.30,   3.76,   4.20,  99.90,   0.14,
04/17 13Z,   0.30,   4.18,   4.60,  99.90,   0.12,  (max)
04/17 14Z,   0.30,   4.04,   4.27,  99.90,  -0.07,
04/17 15Z,   0.30,   3.30,   3.36,  99.90,  -0.24,
04/17 16Z,   0.30,   2.24,   2.33,  99.90,  -0.21,
04/17 17Z,   0.30,   1.13,   1.32,  99.90,  -0.11,
04/17 18Z,   0.40,   0.14,   0.44,  99.90,  -0.10,
04/17 19Z,   0.40,  -0.41,   0.03,  99.90,   0.04,  (min)
04/17 20Z,   0.40,  -0.15,   0.86,  99.90,   0.61,
04/17 21Z,   0.40,   0.93,   2.01,  99.90,   0.68,
04/17 22Z,   0.40,   2.33,   3.07,  99.90,   0.34,
04/17 23Z,   0.40,   3.55,   4.05,  99.90,   0.10,
04/18 00Z,   0.40,   4.49,   5.00,  99.90,   0.11,
04/18 01Z,   0.40,   5.11,   5.65,  99.90,   0.14,  (max)
04/18 02Z,   0.50,   5.24,   5.64,  99.90,  -0.10,
04/18 03Z,   0.50,   4.72,   4.87,  99.90,  -0.35,
04/18 04Z,   0.50,   3.68,   3.88,  99.90,  -0.30,
04/18 05Z,   0.50,   2.42,   2.80,  99.90,  -0.12,
04/18 06Z,   0.50,   1.09,   1.66,  99.90,   0.07,
04/18 07Z,   0.50,  -0.02,   0.69,  99.90,   0.21,
04/18 08Z,   0.50,  -0.49,   0.23,  99.90,   0.22,  (min)
04/18 09Z,   0.50,  -0.04,   1.02,  99.90,   0.56,
04/18 10Z,   0.60,   1.03,   2.10,  99.90,   0.47,
04/18 11Z,   0.60,   2.18,   3.04,  99.90,   0.26,
04/18 12Z,   0.60,   3.13,   3.93,  99.90,   0.20,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/18 13Z,   0.60,   3.83,  99.90,   4.62,   0.19,
04/18 14Z,   0.60,   4.15,  99.90,   4.93,   0.18,  (max)
04/18 15Z,   0.60,   3.89,  99.90,   4.65,   0.16,
04/18 16Z,   0.70,   3.05,  99.90,   3.90,   0.15,
04/18 17Z,   0.70,   1.94,  99.90,   2.78,   0.14,
04/18 18Z,   0.70,   0.82,  99.90,   1.64,   0.12,
04/18 19Z,   0.70,  -0.11,  99.90,   0.70,   0.11,
04/18 20Z,   0.80,  -0.50,  99.90,   0.40,   0.10,  (min)
04/18 21Z,   0.80,  -0.02,  99.90,   0.87,   0.08,
04/18 22Z,   0.80,   1.21,  99.90,   2.08,   0.07,
04/18 23Z,   0.80,   2.63,  99.90,   3.49,   0.05,
04/19 00Z,   0.90,   3.80,  99.90,   4.74,   0.04,
04/19 01Z,   0.90,   4.68,  99.90,   5.62,   0.04,
04/19 02Z,   0.90,   5.23,  99.90,   6.17,   0.04,  0.07 ft above HAT
04/19 03Z,   0.90,   5.27,  99.90,   6.21,   0.04,  0.11 ft above HAT  (max)
04/19 04Z,   0.90,   4.66,  99.90,   5.60,   0.04,
04/19 05Z,   0.90,   3.56,  99.90,   4.50,   0.04,
04/19 06Z,   0.80,   2.25,  99.90,   3.09,   0.04,
04/19 07Z,   0.80,   0.93,  99.90,   1.77,   0.04,
04/19 08Z,   0.80,  -0.10,  99.90,   0.74,   0.04,
04/19 09Z,   0.80,  -0.42,  99.90,   0.42,   0.04,  (min)
04/19 10Z,   0.80,   0.16,  99.90,   1.00,   0.04,
04/19 11Z,   0.80,   1.25,  99.90,   2.10,   0.04,
04/19 12Z,   0.70,   2.34,  99.90,   3.08,   0.04,
04/19 13Z,   0.70,   3.20,  99.90,   3.94,   0.04,
04/19 14Z,   0.60,   3.83,  99.90,   4.47,   0.04,
04/19 15Z,   0.40,   4.07,  99.90,   4.51,   0.04,  (max)
04/19 16Z,   0.30,   3.69,  99.90,   4.03,   0.04,
04/19 17Z,   0.30,   2.78,  99.90,   3.12,   0.04,
04/19 18Z,   0.20,   1.66,  99.90,   1.90,   0.04,
04/19 19Z,   0.20,   0.58,  99.90,   0.82,   0.04,
04/19 20Z,   0.30,  -0.23,  99.90,   0.11,   0.04,
04/19 21Z,   0.30,  -0.44,  99.90,  -0.10,   0.04,  (min)
04/19 22Z,   0.40,   0.21,  99.90,   0.65,   0.04,
04/19 23Z,   0.50,   1.49,  99.90,   2.03,   0.04,
04/20 00Z,   0.60,   2.84,  99.90,   3.48,   0.04,
04/20 01Z,   0.60,   3.92,  99.90,   4.56,   0.04,
04/20 02Z,   0.50,   4.73,  99.90,   5.27,   0.04,
04/20 03Z,   0.60,   5.23,  99.90,   5.87,   0.04,  (max)
04/20 04Z,   0.50,   5.19,  99.90,   5.73,   0.04,
04/20 05Z,   0.50,   4.50,  99.90,   5.04,   0.04,
04/20 06Z,   0.50,   3.39,  99.90,   3.93,   0.04,
04/20 07Z,   0.50,   2.12,  99.90,   2.66,   0.04,
04/20 08Z,   0.50,   0.87,  99.90,   1.41,   0.04,
04/20 09Z,   0.50,  -0.04,  99.90,   0.50,   0.04,
04/20 10Z,   0.40,  -0.21,  99.90,   0.23,   0.04,  (min)
04/20 11Z,   0.40,   0.43,  99.90,   0.87,   0.04,
04/20 12Z,   0.30,   1.47,  99.90,   1.81,   0.04,
04/20 13Z,   0.20,   2.45,  99.90,   2.69,   0.04,
04/20 14Z,   0.20,   3.23,  99.90,   3.47,   0.04,
04/20 15Z,   0.10,   3.80,  99.90,   3.94,   0.04,
04/20 16Z,   0.10,   3.94,  99.90,   4.08,   0.04,  (max)
04/20 17Z,   0.10,   3.46,  99.90,   3.60,   0.04,
04/20 18Z,   0.10,   2.52,  99.90,   2.66,   0.04,
04/20 19Z,   0.10,   1.44,  99.90,   1.59,   0.04,
04/20 20Z,   0.00,   0.47,  99.90,   0.51,   0.04,
04/20 21Z,   0.00,  -0.21,  99.90,  -0.17,   0.04,  (min)
04/20 22Z,   0.10,  -0.27,  99.90,  -0.13,   0.04,
04/20 23Z,   0.20,   0.46,  99.90,   0.70,   0.04,
04/21 00Z,   0.20,   1.70,  99.90,   1.94,   0.04,
04/21 01Z,   0.20,   2.93,  99.90,   3.17,   0.04,
04/21 02Z,   0.20,   3.91,  99.90,   4.15,   0.04,
04/21 03Z,   0.20,   4.67,  99.90,   4.91,   0.04,
04/21 04Z,   0.20,   5.12,  99.90,   5.36,   0.04,  (max)
04/21 05Z,   0.30,   5.00,  99.90,   5.35,   0.04,
04/21 06Z,   0.30,   4.29,  99.90,   4.63,   0.04,
04/21 07Z,   0.30,   3.22,  99.90,   3.56,   0.04,
04/21 08Z,   0.30,   2.05,  99.90,   2.39,   0.04,
04/21 09Z,   0.30,   0.93,  99.90,   1.27,   0.04,
04/21 10Z,   0.30,   0.14,  99.90,   0.48,   0.04,
04/21 11Z,   0.30,   0.05,  99.90,   0.39,   0.04,  (min)
04/21 12Z,   0.40,   0.69,  99.90,   1.13,   0.04,
04/21 13Z,   0.40,   1.64,  99.90,   2.08,   0.04,
04/21 14Z,   0.40,   2.51,  99.90,   2.95,   0.04,
04/21 15Z,   0.40,   3.23,  99.90,   3.67,   0.04,
04/21 16Z,   0.40,   3.74,  99.90,   4.18,   0.04,
04/21 17Z,   0.40,   3.80,  99.90,   4.24,   0.04,  (max)
04/21 18Z,   0.40,   3.25,  99.90,   3.70,   0.04,
04/21 19Z,   0.40,   2.33,  99.90,   2.77,   0.04,
04/21 20Z,   0.40,   1.36,  99.90,   1.80,   0.04,
04/21 21Z,   0.40,   0.51,  99.90,   0.95,   0.04,
04/21 22Z,   0.40,  -0.06,  99.90,   0.38,   0.04,  (min)
04/21 23Z,   0.40,  -0.06,  99.90,   0.38,   0.04,
04/22 00Z,   0.50,   0.66,  99.90,   1.20,   0.04,