EXTRA-TROPICAL  STORM  SURGE
N A T I O N A L    O C E A N I C    A N D    A T M O S P H E R I C    A D M I N I S T R A T I O N

  • This website is considered EXPERIMENTAL, is supported on an 8x5 basis, and has no guarantee of availability.
  • The data located HERE are considered OPERATIONAL and are supported on a 24x7 basis.
About
Manual
Disclaimer
Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
Mid-Atlantic
Southeast
Gulf
Northwest
Alaska
Gulf of Alaska
Status
Stations
Cherry Point, WA
Friday Harbor WA
Port Townsend
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
#Port Townsend, WA : 07/18/2026 05:22:44 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/16 12Z,   0.50,   7.91,   8.61,  99.90,   0.20,
07/16 13Z,   0.50,   7.52,   8.36,  99.90,   0.34,  (max)
07/16 14Z,   0.50,   6.33,   7.33,  99.90,   0.50,
07/16 15Z,   0.50,   4.39,   5.20,  99.90,   0.31,
07/16 16Z,   0.50,   1.99,   2.59,  99.90,   0.10,
07/16 17Z,   0.50,  -0.34,   0.18,  99.90,   0.02,
07/16 18Z,   0.60,  -1.98,  -1.50,  99.90,  -0.12,
07/16 19Z,   0.50,  -2.52,  -2.23,  99.90,  -0.21,  (min)
07/16 20Z,   0.50,  -2.00,  -1.57,  99.90,  -0.07,
07/16 21Z,   0.60,  -0.72,  -0.12,  99.90,   0.00,
07/16 22Z,   0.60,   1.02,   1.42,  99.90,  -0.20,
07/16 23Z,   0.60,   3.10,   3.41,  99.90,  -0.29,
07/17 00Z,   0.70,   5.32,   5.87,  99.90,  -0.15,
07/17 01Z,   0.70,   7.29,   7.82,  99.90,  -0.17,
07/17 02Z,   0.70,   8.61,   8.90,  99.90,  -0.41,
07/17 03Z,   0.70,   9.03,   9.19,  99.90,  -0.54,  (max)
07/17 04Z,   0.70,   8.58,   8.96,  99.90,  -0.32,
07/17 05Z,   0.70,   7.50,   8.05,  99.90,  -0.15,
07/17 06Z,   0.60,   6.31,   6.68,  99.90,  -0.23,
07/17 07Z,   0.50,   5.49,   5.84,  99.90,  -0.15,
07/17 08Z,   0.50,   5.27,   5.66,  99.90,  -0.11,  (min)
07/17 09Z,   0.60,   5.49,   5.89,  99.90,  -0.20,
07/17 10Z,   0.60,   5.93,   6.49,  99.90,  -0.04,
07/17 11Z,   0.50,   6.46,   6.94,  99.90,  -0.02,
07/17 12Z,   0.40,   6.98,   7.53,  99.90,   0.15,
07/17 13Z,   0.40,   7.24,   7.92,  99.90,   0.28,  (max)
07/17 14Z,   0.40,   6.91,   7.67,  99.90,   0.36,
07/17 15Z,   0.40,   5.82,   6.69,  99.90,   0.47,
07/17 16Z,   0.40,   4.07,   4.87,  99.90,   0.40,
07/17 17Z,   0.40,   1.98,   2.62,  99.90,   0.24,
07/17 18Z,   0.50,   0.04,   0.58,  99.90,   0.04,
07/17 19Z,   0.40,  -1.20,  -0.75,  99.90,   0.05,
07/17 20Z,   0.40,  -1.42,  -0.93,  99.90,   0.09,  (min)
07/17 21Z,   0.50,  -0.73,  -0.21,  99.90,   0.02,
07/17 22Z,   0.50,   0.59,   1.22,  99.90,   0.13,
07/17 23Z,   0.40,   2.31,   2.69,  99.90,  -0.02,
07/18 00Z,   0.60,   4.31,   4.72,  99.90,  -0.19,
07/18 01Z,   0.60,   6.33,   6.81,  99.90,  -0.12,
07/18 02Z,   0.60,   7.97,   8.39,  99.90,  -0.18,
07/18 03Z,   0.60,   8.87,   9.08,  99.90,  -0.39,
07/18 04Z,   0.60,   8.86,   9.12,  99.90,  -0.34,  (max)
07/18 05Z,   0.60,   8.05,   8.56,  99.90,  -0.09,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/18 06Z,   0.60,   6.74,  99.90,   7.25,  -0.09,
07/18 07Z,   0.60,   5.44,  99.90,   5.95,  -0.09,
07/18 08Z,   0.50,   4.59,  99.90,   5.00,  -0.09,
07/18 09Z,   0.50,   4.34,  99.90,   4.75,  -0.08,  (min)
07/18 10Z,   0.50,   4.53,  99.90,   4.95,  -0.08,
07/18 11Z,   0.50,   4.96,  99.90,   5.37,  -0.08,
07/18 12Z,   0.50,   5.53,  99.90,   5.95,  -0.08,
07/18 13Z,   0.50,   6.12,  99.90,   6.54,  -0.08,
07/18 14Z,   0.50,   6.46,  99.90,   6.87,  -0.08,  (max)
07/18 15Z,   0.40,   6.23,  99.90,   6.55,  -0.08,
07/18 16Z,   0.50,   5.35,  99.90,   5.77,  -0.08,
07/18 17Z,   0.50,   3.93,  99.90,   4.35,  -0.08,
07/18 18Z,   0.50,   2.27,  99.90,   2.69,  -0.08,
07/18 19Z,   0.40,   0.80,  99.90,   1.12,  -0.08,
07/18 20Z,   0.40,  -0.03,  99.90,   0.29,  -0.08,  (min)
07/18 21Z,   0.40,   0.02,  99.90,   0.34,  -0.08,
07/18 22Z,   0.40,   0.82,  99.90,   1.14,  -0.08,
07/18 23Z,   0.40,   2.11,  99.90,   2.43,  -0.08,
07/19 00Z,   0.40,   3.73,  99.90,   4.05,  -0.08,
07/19 01Z,   0.40,   5.53,  99.90,   5.85,  -0.08,
07/19 02Z,   0.50,   7.25,  99.90,   7.67,  -0.08,
07/19 03Z,   0.50,   8.46,  99.90,   8.88,  -0.08,
07/19 04Z,   0.50,   8.89,  99.90,   9.31,  -0.08,  (max)
07/19 05Z,   0.50,   8.46,  99.90,   8.88,  -0.08,
07/19 06Z,   0.50,   7.34,  99.90,   7.76,  -0.08,
07/19 07Z,   0.50,   5.86,  99.90,   6.28,  -0.08,
07/19 08Z,   0.50,   4.48,  99.90,   4.90,  -0.08,
07/19 09Z,   0.40,   3.61,  99.90,   3.93,  -0.08,
07/19 10Z,   0.40,   3.34,  99.90,   3.66,  -0.08,  (min)
07/19 11Z,   0.50,   3.51,  99.90,   3.93,  -0.08,
07/19 12Z,   0.50,   3.94,  99.90,   4.36,  -0.08,
07/19 13Z,   0.50,   4.57,  99.90,   4.99,  -0.08,
07/19 14Z,   0.40,   5.25,  99.90,   5.57,  -0.08,
07/19 15Z,   0.40,   5.68,  99.90,   6.00,  -0.08,  (max)
07/19 16Z,   0.40,   5.63,  99.90,   5.95,  -0.08,
07/19 17Z,   0.40,   5.05,  99.90,   5.37,  -0.08,
07/19 18Z,   0.40,   4.06,  99.90,   4.38,  -0.08,
07/19 19Z,   0.40,   2.89,  99.90,   3.21,  -0.08,
07/19 20Z,   0.40,   1.89,  99.90,   2.21,  -0.08,
07/19 21Z,   0.40,   1.43,  99.90,   1.75,  -0.08,  (min)
07/19 22Z,   0.40,   1.67,  99.90,   1.99,  -0.08,
07/19 23Z,   0.40,   2.48,  99.90,   2.80,  -0.08,
07/20 00Z,   0.40,   3.67,  99.90,   3.99,  -0.08,
07/20 01Z,   0.40,   5.09,  99.90,   5.41,  -0.08,
07/20 02Z,   0.50,   6.61,  99.90,   7.03,  -0.08,
07/20 03Z,   0.50,   7.92,  99.90,   8.34,  -0.08,
07/20 04Z,   0.50,   8.66,  99.90,   9.08,  -0.08,  (max)
07/20 05Z,   0.50,   8.63,  99.90,   9.05,  -0.08,
07/20 06Z,   0.50,   7.85,  99.90,   8.27,  -0.08,
07/20 07Z,   0.50,   6.50,  99.90,   6.92,  -0.08,
07/20 08Z,   0.50,   4.90,  99.90,   5.32,  -0.08,
07/20 09Z,   0.50,   3.50,  99.90,   3.92,  -0.08,
07/20 10Z,   0.50,   2.63,  99.90,   3.05,  -0.08,
07/20 11Z,   0.60,   2.36,  99.90,   2.88,  -0.08,  (min)
07/20 12Z,   0.60,   2.52,  99.90,   3.04,  -0.08,
07/20 13Z,   0.50,   3.00,  99.90,   3.42,  -0.08,
07/20 14Z,   0.50,   3.70,  99.90,   4.12,  -0.08,
07/20 15Z,   0.50,   4.47,  99.90,   4.89,  -0.08,
07/20 16Z,   0.60,   5.05,  99.90,   5.57,  -0.08,
07/20 17Z,   0.50,   5.23,  99.90,   5.65,  -0.08,  (max)
07/20 18Z,   0.50,   5.02,  99.90,   5.44,  -0.08,
07/20 19Z,   0.50,   4.50,  99.90,   4.92,  -0.08,
07/20 20Z,   0.50,   3.82,  99.90,   4.24,  -0.08,
07/20 21Z,   0.50,   3.23,  99.90,   3.65,  -0.08,
07/20 22Z,   0.50,   3.03,  99.90,   3.45,  -0.08,  (min)
07/20 23Z,   0.50,   3.34,  99.90,   3.76,  -0.08,
07/21 00Z,   0.50,   4.08,  99.90,   4.50,  -0.08,
07/21 01Z,   0.50,   5.08,  99.90,   5.50,  -0.08,
07/21 02Z,   0.50,   6.23,  99.90,   6.65,  -0.08,
07/21 03Z,   0.50,   7.40,  99.90,   7.82,  -0.08,
07/21 04Z,   0.60,   8.26,  99.90,   8.78,  -0.08,
07/21 05Z,   0.50,   8.54,  99.90,   8.96,  -0.08,  (max)
07/21 06Z,   0.50,   8.12,  99.90,   8.54,  -0.08,
07/21 07Z,   0.50,   7.07,  99.90,   7.49,  -0.08,
07/21 08Z,   0.50,   5.58,  99.90,   6.00,  -0.08,
07/21 09Z,   0.50,   3.94,  99.90,   4.36,  -0.08,
07/21 10Z,   0.50,   2.55,  99.90,   2.97,  -0.08,
07/21 11Z,   0.60,   1.71,  99.90,   2.23,  -0.08,
07/21 12Z,   0.50,   1.47,  99.90,   1.89,  -0.08,  (min)
07/21 13Z,   0.50,   1.67,  99.90,   2.09,  -0.08,
07/21 14Z,   0.50,   2.22,  99.90,   2.64,  -0.08,
07/21 15Z,   0.50,   3.02,  99.90,   3.44,  -0.08,
07/21 16Z,   0.50,   3.90,  99.90,   4.32,  -0.08,
07/21 17Z,   0.50,   4.65,  99.90,   5.07,  -0.08,
07/21 18Z,   0.50,   5.12,  99.90,   5.54,  -0.08,
07/21 19Z,   0.50,   5.31,  99.90,   5.73,  -0.08,  (max)
07/21 20Z,   0.50,   5.24,  99.90,   5.66,  -0.08,
07/21 21Z,   0.50,   4.95,  99.90,   5.37,  -0.08,
07/21 22Z,   0.50,   4.64,  99.90,   5.06,  -0.08,
07/21 23Z,   0.50,   4.56,  99.90,   4.98,  -0.08,  (min)
07/22 00Z,   0.50,   4.85,  99.90,   5.27,  -0.08,