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
Port Townsend
Seattle, WA
Port Angeles, WA
Neah Bay, WA
Toke Point, WA
Astoria, OR
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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
#Port Townsend, WA : 12/14/2025 04:21:02 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/12 12Z,  -0.10,   2.51,   2.92,  99.90,   0.51,  (min)
12/12 13Z,   0.00,   3.24,   3.68,  99.90,   0.44,
12/12 14Z,   0.00,   4.29,   4.76,  99.90,   0.47,
12/12 15Z,   0.00,   5.58,   6.05,  99.90,   0.47,
12/12 16Z,   0.00,   6.96,   7.43,  99.90,   0.47,
12/12 17Z,   0.00,   8.16,   8.55,  99.90,   0.39,
12/12 18Z,   0.20,   8.89,   9.19,  99.90,   0.10,
12/12 19Z,   0.10,   9.04,   9.37,  99.90,   0.23,  (max)
12/12 20Z,   0.10,   8.58,   8.83,  99.90,   0.15,
12/12 21Z,   0.20,   7.56,   7.75,  99.90,  -0.01,
12/12 22Z,   0.20,   6.18,   6.25,  99.90,  -0.13,
12/12 23Z,   0.20,   4.83,   4.74,  99.90,  -0.29,
12/13 00Z,   0.30,   3.83,   3.66,  99.90,  -0.47,
12/13 01Z,   0.30,   3.27,   3.12,  99.90,  -0.45,
12/13 02Z,   0.30,   3.10,   2.98,  99.90,  -0.42,  (min)
12/13 03Z,   0.30,   3.27,   3.29,  99.90,  -0.28,
12/13 04Z,   0.30,   3.72,   3.71,  99.90,  -0.31,
12/13 05Z,   0.40,   4.29,   4.28,  99.90,  -0.41,
12/13 06Z,   0.20,   4.76,   4.73,  99.90,  -0.23,
12/13 07Z,   0.10,   5.02,   5.19,  99.90,   0.07,
12/13 08Z,   0.10,   5.03,   5.32,  99.90,   0.19,  (max)
12/13 09Z,   0.20,   4.79,   5.20,  99.90,   0.21,
12/13 10Z,   0.20,   4.34,   5.02,  99.90,   0.48,
12/13 11Z,   0.10,   3.88,   4.63,  99.90,   0.65,
12/13 12Z,   0.00,   3.72,   4.48,  99.90,   0.76,  (min)
12/13 13Z,   0.10,   3.98,   4.72,  99.90,   0.64,
12/13 14Z,   0.10,   4.59,   5.29,  99.90,   0.60,
12/13 15Z,   0.10,   5.47,   6.12,  99.90,   0.55,
12/13 16Z,   0.00,   6.54,   7.06,  99.90,   0.52,
12/13 17Z,   0.10,   7.63,   7.97,  99.90,   0.24,
12/13 18Z,   0.30,   8.48,   8.76,  99.90,  -0.02,
12/13 19Z,   0.30,   8.86,   9.00,  99.90,  -0.16,  (max)
12/13 20Z,   0.30,   8.68,   8.81,  99.90,  -0.17,
12/13 21Z,   0.30,   7.92,   8.01,  99.90,  -0.21,
12/13 22Z,   0.30,   6.63,   6.74,  99.90,  -0.19,
12/13 23Z,   0.30,   5.05,   4.97,  99.90,  -0.38,
12/14 00Z,   0.30,   3.58,   3.49,  99.90,  -0.39,
12/14 01Z,   0.40,   2.56,   2.49,  99.90,  -0.47,
12/14 02Z,   0.40,   2.06,   2.00,  99.90,  -0.46,  (min)
12/14 03Z,   0.40,   2.02,   2.10,  99.90,  -0.32,
12/14 04Z,   0.40,   2.39,   2.63,  99.90,  -0.16,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/14 05Z,   0.40,   3.07,  99.90,   3.33,  -0.14,
12/14 06Z,   0.50,   3.91,  99.90,   4.28,  -0.13,
12/14 07Z,   0.50,   4.71,  99.90,   5.10,  -0.11,
12/14 08Z,   0.50,   5.35,  99.90,   5.76,  -0.09,
12/14 09Z,   0.50,   5.76,  99.90,   6.18,  -0.08,
12/14 10Z,   0.50,   5.84,  99.90,   6.28,  -0.06,  (max)
12/14 11Z,   0.60,   5.59,  99.90,   6.14,  -0.05,
12/14 12Z,   0.50,   5.24,  99.90,   5.71,  -0.03,
12/14 13Z,   0.50,   5.10,  99.90,   5.58,  -0.02,  (min)
12/14 14Z,   0.50,   5.30,  99.90,   5.79,  -0.00,
12/14 15Z,   0.50,   5.79,  99.90,   6.30,   0.01,
12/14 16Z,   0.50,   6.48,  99.90,   7.01,   0.03,
12/14 17Z,   0.50,   7.31,  99.90,   7.84,   0.03,
12/14 18Z,   0.50,   8.10,  99.90,   8.63,   0.03,
12/14 19Z,   0.50,   8.60,  99.90,   9.13,   0.03,
12/14 20Z,   0.50,   8.63,  99.90,   9.16,   0.03,  (max)
12/14 21Z,   0.50,   8.12,  99.90,   8.65,   0.03,
12/14 22Z,   0.50,   7.05,  99.90,   7.58,   0.03,
12/14 23Z,   0.50,   5.49,  99.90,   6.02,   0.03,
12/15 00Z,   0.50,   3.74,  99.90,   4.27,   0.03,
12/15 01Z,   0.50,   2.25,  99.90,   2.78,   0.03,
12/15 02Z,   0.60,   1.33,  99.90,   1.96,   0.03,
12/15 03Z,   0.60,   1.02,  99.90,   1.65,   0.03,  (min)
12/15 04Z,   0.50,   1.22,  99.90,   1.75,   0.03,
12/15 05Z,   0.60,   1.85,  99.90,   2.48,   0.03,
12/15 06Z,   0.70,   2.82,  99.90,   3.55,   0.03,
12/15 07Z,   0.60,   3.96,  99.90,   4.59,   0.03,
12/15 08Z,   0.60,   5.07,  99.90,   5.70,   0.03,
12/15 09Z,   0.70,   6.04,  99.90,   6.77,   0.03,
12/15 10Z,   0.80,   6.71,  99.90,   7.54,   0.03,
12/15 11Z,   0.80,   6.95,  99.90,   7.78,   0.03,  (max)
12/15 12Z,   0.70,   6.76,  99.90,   7.49,   0.03,
12/15 13Z,   0.80,   6.42,  99.90,   7.25,   0.03,  (min)
12/15 14Z,   1.00,   6.24,  99.90,   7.27,   0.03,
12/15 15Z,   1.00,   6.36,  99.90,   7.39,   0.03,
12/15 16Z,   1.00,   6.73,  99.90,   7.76,   0.03,
12/15 17Z,   1.00,   7.25,  99.90,   8.28,   0.03,
12/15 18Z,   1.10,   7.85,  99.90,   8.98,   0.03,
12/15 19Z,   1.10,   8.35,  99.90,   9.48,   0.03,
12/15 20Z,   1.00,   8.52,  99.90,   9.55,   0.03,  (max)
12/15 21Z,   1.00,   8.22,  99.90,   9.25,   0.03,
12/15 22Z,   1.10,   7.37,  99.90,   8.50,   0.03,
12/15 23Z,   1.20,   5.99,  99.90,   7.22,   0.03,
12/16 00Z,   1.20,   4.20,  99.90,   5.43,   0.03,
12/16 01Z,   1.30,   2.37,  99.90,   3.70,   0.03,
12/16 02Z,   1.50,   0.98,  99.90,   2.51,   0.03,
12/16 03Z,   1.40,   0.29,  99.90,   1.72,   0.03,
12/16 04Z,   1.10,   0.28,  99.90,   1.41,   0.03,  (min)
12/16 05Z,   1.10,   0.79,  99.90,   1.92,   0.03,
12/16 06Z,   1.10,   1.74,  99.90,   2.87,   0.03,
12/16 07Z,   0.90,   3.01,  99.90,   3.94,   0.03,
12/16 08Z,   0.70,   4.42,  99.90,   5.15,   0.03,
12/16 09Z,   0.60,   5.79,  99.90,   6.42,   0.03,
12/16 10Z,   0.60,   6.94,  99.90,   7.57,   0.03,
12/16 11Z,   0.60,   7.71,  99.90,   8.33,   0.03,
12/16 12Z,   0.50,   7.93,  99.90,   8.46,   0.03,  (max)
12/16 13Z,   0.50,   7.68,  99.90,   8.21,   0.03,
12/16 14Z,   0.60,   7.29,  99.90,   7.92,   0.03,
12/16 15Z,   0.60,   7.07,  99.90,   7.70,   0.03,
12/16 16Z,   0.50,   7.13,  99.90,   7.66,   0.03,  (min)
12/16 17Z,   0.50,   7.38,  99.90,   7.91,   0.03,
12/16 18Z,   0.60,   7.75,  99.90,   8.38,   0.03,
12/16 19Z,   0.60,   8.15,  99.90,   8.78,   0.03,
12/16 20Z,   0.50,   8.40,  99.90,   8.93,   0.03,  (max)
12/16 21Z,   0.60,   8.27,  99.90,   8.90,   0.03,
12/16 22Z,   0.60,   7.64,  99.90,   8.27,   0.03,
12/16 23Z,   0.60,   6.47,  99.90,   7.10,   0.03,
12/17 00Z,   0.50,   4.81,  99.90,   5.34,   0.03,
12/17 01Z,   0.70,   2.86,  99.90,   3.59,   0.03,
12/17 02Z,   0.80,   1.07,  99.90,   1.90,   0.03,
12/17 03Z,   0.90,  -0.08,  99.90,   0.85,   0.03,
12/17 04Z,   0.90,  -0.43,  99.90,   0.50,   0.03,  (min)
12/17 05Z,   1.00,  -0.09,  99.90,   0.94,   0.03,
12/17 06Z,   1.30,   0.77,  99.90,   2.10,   0.03,
12/17 07Z,   1.40,   2.03,  99.90,   3.46,   0.03,
12/17 08Z,   1.40,   3.58,  99.90,   5.01,   0.03,
12/17 09Z,   1.50,   5.20,  99.90,   6.73,   0.03,
12/17 10Z,   2.00,   6.69,  99.90,   8.72,   0.03,
12/17 11Z,   2.20,   7.88,  99.90,  10.10,   0.03,
12/17 12Z,   1.70,   8.56,  99.90,  10.29,   0.03,  0.13 ft above HAT
12/17 13Z,   1.80,   8.63,  99.90,  10.46,   0.03,  0.30 ft above HAT  (max)
12/17 14Z,   1.90,   8.26,  99.90,  10.19,   0.03,  0.03 ft above HAT
12/17 15Z,   1.80,   7.81,  99.90,   9.64,   0.03,
12/17 16Z,   1.50,   7.58,  99.90,   9.11,   0.03,
12/17 17Z,   1.30,   7.60,  99.90,   8.93,   0.03,  (min)
12/17 18Z,   1.30,   7.77,  99.90,   9.10,   0.03,
12/17 19Z,  99.90,   8.02,  99.90,  99.90,   0.03,
12/17 20Z,  99.90,   8.26,  99.90,  99.90,   0.03,
12/17 21Z,  99.90,   8.28,  99.90,  99.90,   0.03,
12/17 22Z,  99.90,   7.89,  99.90,  99.90,   0.03,
12/17 23Z,  99.90,   6.95,  99.90,  99.90,   0.03,
12/18 00Z,  99.90,   5.48,  99.90,  99.90,   0.03,