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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Cherry Point, WA
Friday Harbor WA
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Seattle, WA
Port Angeles, WA
Neah Bay, WA
Toke Point, WA
Astoria, OR
South Beach, OR
Charleston, OR
Port Orford, OR
Crescent City, CA
North Spit, CA
Arena Cove, CA
Point Reyes, CA
Port Chicago, CA
San Francisco CA
Surge List
West Coast
#Neah Bay, WA : 04/20/2026 09:21:09 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/18 18Z,   0.30,   1.65,   1.40,  99.90,  -0.55,
04/18 19Z,   0.40,   3.85,   3.59,  99.90,  -0.66,
04/18 20Z,   0.40,   5.73,   5.48,  99.90,  -0.65,
04/18 21Z,   0.30,   6.83,   6.46,  99.90,  -0.67,
04/18 22Z,   0.30,   7.04,   6.54,  99.90,  -0.80,  (max)
04/18 23Z,   0.40,   6.45,   6.05,  99.90,  -0.80,
04/19 00Z,   0.40,   5.32,   5.07,  99.90,  -0.65,
04/19 01Z,   0.40,   4.05,   3.72,  99.90,  -0.73,
04/19 02Z,   0.40,   3.07,   2.89,  99.90,  -0.58,
04/19 03Z,   0.50,   2.73,   2.76,  99.90,  -0.47,  (min)
04/19 04Z,   0.50,   3.12,   3.32,  99.90,  -0.30,
04/19 05Z,   0.40,   4.24,   4.31,  99.90,  -0.33,
04/19 06Z,   0.40,   5.88,   5.89,  99.90,  -0.39,
04/19 07Z,   0.40,   7.66,   7.64,  99.90,  -0.42,
04/19 08Z,   0.40,   9.02,   8.87,  99.90,  -0.55,
04/19 09Z,   0.30,   9.52,   9.35,  99.90,  -0.47,  (max)
04/19 10Z,   0.40,   9.00,   8.88,  99.90,  -0.52,
04/19 11Z,   0.50,   7.56,   7.52,  99.90,  -0.54,
04/19 12Z,   0.40,   5.43,   5.34,  99.90,  -0.49,
04/19 13Z,   0.30,   2.96,   2.88,  99.90,  -0.38,
04/19 14Z,   0.30,   0.65,   0.56,  99.90,  -0.39,
04/19 15Z,   0.40,  -1.04,  -1.15,  99.90,  -0.51,
04/19 16Z,   0.40,  -1.81,  -2.07,  99.90,  -0.66,  (min)
04/19 17Z,   0.30,  -1.53,  -1.78,  99.90,  -0.55,
04/19 18Z,   0.40,  -0.24,  -0.39,  99.90,  -0.55,
04/19 19Z,   0.50,   1.77,   1.67,  99.90,  -0.60,
04/19 20Z,   0.40,   3.94,   3.84,  99.90,  -0.50,
04/19 21Z,   0.40,   5.69,   5.59,  99.90,  -0.50,
04/19 22Z,   0.50,   6.65,   6.37,  99.90,  -0.78,
04/19 23Z,   0.50,   6.75,   6.48,  99.90,  -0.77,  (max)
04/20 00Z,   0.60,   6.16,   5.99,  99.90,  -0.77,
04/20 01Z,   0.50,   5.13,   5.00,  99.90,  -0.63,
04/20 02Z,   0.40,   4.06,   3.95,  99.90,  -0.51,
04/20 03Z,   0.50,   3.37,   3.40,  99.90,  -0.47,  (min)
04/20 04Z,   0.50,   3.29,   3.46,  99.90,  -0.33,
04/20 05Z,   0.30,   3.90,   4.13,  99.90,  -0.07,
04/20 06Z,   0.30,   5.11,   5.20,  99.90,  -0.21,
04/20 07Z,   0.40,   6.70,   6.71,  99.90,  -0.39,
04/20 08Z,   0.30,   8.27,   8.24,  99.90,  -0.33,
04/20 09Z,   0.30,   9.31,   9.28,  99.90,  -0.33,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/20 10Z,   0.40,   9.46,  99.90,   9.52,  -0.35,  (max)
04/20 11Z,   0.40,   8.65,  99.90,   8.70,  -0.36,
04/20 12Z,   0.40,   7.02,  99.90,   7.06,  -0.37,
04/20 13Z,   0.40,   4.82,  99.90,   4.84,  -0.38,
04/20 14Z,   0.50,   2.41,  99.90,   2.52,  -0.39,
04/20 15Z,   0.50,   0.24,  99.90,   0.34,  -0.40,
04/20 16Z,   0.40,  -1.25,  99.90,  -1.26,  -0.41,
04/20 17Z,   0.40,  -1.82,  99.90,  -1.85,  -0.43,  (min)
04/20 18Z,   0.50,  -1.39,  99.90,  -1.33,  -0.44,
04/20 19Z,   0.50,  -0.04,  99.90,   0.01,  -0.45,
04/20 20Z,   0.50,   1.92,  99.90,   1.96,  -0.46,
04/20 21Z,   0.50,   3.95,  99.90,   3.98,  -0.47,
04/20 22Z,   0.50,   5.52,  99.90,   5.54,  -0.47,
04/20 23Z,   0.50,   6.33,  99.90,   6.36,  -0.47,
04/21 00Z,   0.50,   6.39,  99.90,   6.42,  -0.47,  (max)
04/21 01Z,   0.50,   5.87,  99.90,   5.90,  -0.47,
04/21 02Z,   0.50,   5.01,  99.90,   5.04,  -0.47,
04/21 03Z,   0.60,   4.18,  99.90,   4.31,  -0.47,
04/21 04Z,   0.50,   3.73,  99.90,   3.76,  -0.47,  (min)
04/21 05Z,   0.40,   3.85,  99.90,   3.78,  -0.47,
04/21 06Z,   0.50,   4.54,  99.90,   4.56,  -0.47,
04/21 07Z,   0.50,   5.70,  99.90,   5.73,  -0.47,
04/21 08Z,   0.40,   7.13,  99.90,   7.06,  -0.47,
04/21 09Z,   0.50,   8.43,  99.90,   8.46,  -0.47,
04/21 10Z,   0.60,   9.16,  99.90,   9.29,  -0.47,  (max)
04/21 11Z,   0.50,   9.07,  99.90,   9.10,  -0.47,
04/21 12Z,   0.40,   8.13,  99.90,   8.06,  -0.47,
04/21 13Z,   0.50,   6.50,  99.90,   6.53,  -0.47,
04/21 14Z,   0.60,   4.39,  99.90,   4.52,  -0.47,
04/21 15Z,   0.60,   2.16,  99.90,   2.29,  -0.47,
04/21 16Z,   0.40,   0.21,  99.90,   0.14,  -0.47,
04/21 17Z,   0.50,  -1.08,  99.90,  -1.06,  -0.47,
04/21 18Z,   0.60,  -1.52,  99.90,  -1.40,  -0.47,  (min)
04/21 19Z,   0.50,  -1.05,  99.90,  -1.02,  -0.47,
04/21 20Z,   0.40,   0.24,  99.90,   0.17,  -0.47,
04/21 21Z,   0.50,   2.05,  99.90,   2.08,  -0.47,
04/21 22Z,   0.50,   3.87,  99.90,   3.90,  -0.47,
04/21 23Z,   0.50,   5.24,  99.90,   5.27,  -0.47,
04/22 00Z,   0.50,   5.97,  99.90,   6.00,  -0.47,  (max)
04/22 01Z,   0.40,   6.07,  99.90,   6.00,  -0.47,
04/22 02Z,   0.50,   5.67,  99.90,   5.70,  -0.47,
04/22 03Z,   0.50,   5.00,  99.90,   5.03,  -0.47,
04/22 04Z,   0.50,   4.39,  99.90,   4.42,  -0.47,
04/22 05Z,   0.50,   4.11,  99.90,   4.13,  -0.47,  (min)
04/22 06Z,   0.50,   4.29,  99.90,   4.32,  -0.47,
04/22 07Z,   0.50,   4.92,  99.90,   4.95,  -0.47,
04/22 08Z,   0.50,   5.92,  99.90,   5.95,  -0.47,
04/22 09Z,   0.50,   7.11,  99.90,   7.13,  -0.47,
04/22 10Z,   0.50,   8.14,  99.90,   8.17,  -0.47,
04/22 11Z,   0.50,   8.65,  99.90,   8.68,  -0.47,  (max)
04/22 12Z,   0.50,   8.45,  99.90,   8.48,  -0.47,
04/22 13Z,   0.60,   7.55,  99.90,   7.68,  -0.47,
04/22 14Z,   0.60,   6.07,  99.90,   6.20,  -0.47,
04/22 15Z,   0.50,   4.19,  99.90,   4.22,  -0.47,
04/22 16Z,   0.50,   2.20,  99.90,   2.23,  -0.47,
04/22 17Z,   0.50,   0.48,  99.90,   0.51,  -0.47,
04/22 18Z,   0.50,  -0.66,  99.90,  -0.63,  -0.47,
04/22 19Z,   0.50,  -1.05,  99.90,  -1.02,  -0.47,  (min)
04/22 20Z,   0.40,  -0.63,  99.90,  -0.70,  -0.47,
04/22 21Z,   0.40,   0.52,  99.90,   0.45,  -0.47,
04/22 22Z,   0.40,   2.12,  99.90,   2.05,  -0.47,
04/22 23Z,   0.50,   3.73,  99.90,   3.76,  -0.47,
04/23 00Z,   0.40,   4.98,  99.90,   4.91,  -0.47,
04/23 01Z,   0.40,   5.69,  99.90,   5.62,  -0.47,
04/23 02Z,   0.40,   5.88,  99.90,   5.81,  -0.47,  (max)
04/23 03Z,   0.50,   5.63,  99.90,   5.66,  -0.47,
04/23 04Z,   0.40,   5.13,  99.90,   5.06,  -0.47,
04/23 05Z,   0.30,   4.64,  99.90,   4.47,  -0.47,
04/23 06Z,   0.30,   4.41,  99.90,   4.24,  -0.47,  (min)
04/23 07Z,   0.40,   4.52,  99.90,   4.45,  -0.47,
04/23 08Z,   0.30,   4.98,  99.90,   4.81,  -0.47,
04/23 09Z,   0.30,   5.74,  99.90,   5.57,  -0.47,
04/23 10Z,   0.30,   6.67,  99.90,   6.50,  -0.47,
04/23 11Z,   0.30,   7.49,  99.90,   7.32,  -0.47,
04/23 12Z,   0.20,   7.90,  99.90,   7.63,  -0.47,  (max)
04/23 13Z,   0.30,   7.75,  99.90,   7.58,  -0.47,
04/23 14Z,   0.30,   7.03,  99.90,   6.86,  -0.47,
04/23 15Z,   0.20,   5.80,  99.90,   5.53,  -0.47,
04/23 16Z,   0.20,   4.19,  99.90,   3.92,  -0.47,
04/23 17Z,   0.20,   2.45,  99.90,   2.18,  -0.47,
04/23 18Z,   0.20,   0.92,  99.90,   0.65,  -0.47,
04/23 19Z,   0.20,  -0.11,  99.90,  -0.39,  -0.47,
04/23 20Z,   0.20,  -0.52,  99.90,  -0.79,  -0.47,  (min)
04/23 21Z,   0.20,  -0.21,  99.90,  -0.49,  -0.47,
04/23 22Z,   0.20,   0.77,  99.90,   0.50,  -0.47,
04/23 23Z,   0.20,   2.19,  99.90,   1.92,  -0.47,
04/24 00Z,   0.20,   3.66,  99.90,   3.39,  -0.47,
04/24 01Z,  99.90,   4.85,  99.90,  99.90,  -0.47,
04/24 02Z,  99.90,   5.61,  99.90,  99.90,  -0.47,
04/24 03Z,  99.90,   5.91,  99.90,  99.90,  -0.47,
04/24 04Z,  99.90,   5.77,  99.90,  99.90,  -0.47,
04/24 05Z,  99.90,   5.34,  99.90,  99.90,  -0.47,
04/24 06Z,  99.90,   4.87,  99.90,  99.90,  -0.47,