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
#Philadelphia, PA : 02/17/2026 04:21:09 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
02/15 12Z,   0.50,   0.19,   0.81,  99.90,   0.12,  (min)
02/15 13Z,   0.50,   1.64,   2.62,  99.90,   0.48,
02/15 14Z,   0.50,   3.28,   4.20,  99.90,   0.42,
02/15 15Z,   0.50,   4.48,   5.53,  99.90,   0.55,
02/15 16Z,   0.50,   5.43,   6.50,  99.90,   0.57,
02/15 17Z,   0.50,   5.94,   7.05,  99.90,   0.61,  (max)
02/15 18Z,   0.50,   5.60,   6.78,  99.90,   0.68,
02/15 19Z,   0.50,   4.72,   5.70,  99.90,   0.48,
02/15 20Z,   0.50,   3.69,   4.48,  99.90,   0.29,
02/15 21Z,   0.60,   2.62,   3.39,  99.90,   0.17,
02/15 22Z,   0.60,   1.54,   2.31,  99.90,   0.17,
02/15 23Z,   0.60,   0.47,   1.27,  99.90,   0.20,
02/16 00Z,   0.60,  -0.06,   0.53,  99.90,  -0.01,  (min)
02/16 01Z,   0.60,   0.59,   1.03,  99.90,  -0.16,
02/16 02Z,   0.60,   2.00,   2.88,  99.90,   0.28,
02/16 03Z,   0.60,   3.24,   4.29,  99.90,   0.45,
02/16 04Z,   0.60,   4.26,   5.40,  99.90,   0.54,
02/16 05Z,   0.60,   5.06,   6.13,  99.90,   0.47,
02/16 06Z,   0.70,   5.11,   6.23,  99.90,   0.42,  (max)
02/16 07Z,   0.70,   4.36,   5.27,  99.90,   0.21,
02/16 08Z,   0.70,   3.29,   4.10,  99.90,   0.11,
02/16 09Z,   0.70,   2.17,   3.02,  99.90,   0.15,
02/16 10Z,   0.70,   1.13,   1.96,  99.90,   0.13,
02/16 11Z,   0.70,   0.23,   0.96,  99.90,   0.03,
02/16 12Z,   0.70,  -0.25,   0.25,  99.90,  -0.20,  (min)
02/16 13Z,   0.80,   0.36,   1.59,  99.90,   0.43,
02/16 14Z,   0.80,   2.04,   3.48,  99.90,   0.64,
02/16 15Z,   0.80,   3.72,   4.94,  99.90,   0.42,
02/16 16Z,   0.80,   4.88,   6.14,  99.90,   0.46,
02/16 17Z,   0.80,   5.73,   7.05,  99.90,   0.52,
02/16 18Z,   0.80,   6.00,   7.51,  99.90,   0.71,  (max)
02/16 19Z,   0.90,   5.45,   7.03,  99.90,   0.68,
02/16 20Z,   0.90,   4.46,   5.92,  99.90,   0.56,
02/16 21Z,   1.00,   3.39,   4.77,  99.90,   0.38,
02/16 22Z,   1.00,   2.29,   3.68,  99.90,   0.39,
02/16 23Z,   1.10,   1.20,   2.65,  99.90,   0.35,
02/17 00Z,   1.10,   0.20,   1.71,  99.90,   0.41,
02/17 01Z,   1.20,  -0.05,   1.21,  99.90,   0.06,  (min)
02/17 02Z,   1.20,   0.95,   2.44,  99.90,   0.29,
02/17 03Z,   1.20,   2.53,   4.15,  99.90,   0.42,
02/17 04Z,   1.20,   3.78,   5.47,  99.90,   0.49,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
02/17 05Z,   1.20,   4.73,  99.90,   6.39,   0.46,
02/17 06Z,   1.20,   5.31,  99.90,   6.94,   0.43,  (max)
02/17 07Z,   1.20,   5.07,  99.90,   6.68,   0.41,
02/17 08Z,   1.20,   4.16,  99.90,   5.74,   0.38,
02/17 09Z,   1.20,   3.04,  99.90,   4.60,   0.36,
02/17 10Z,   1.20,   1.92,  99.90,   3.45,   0.33,
02/17 11Z,   1.20,   0.89,  99.90,   2.40,   0.30,
02/17 12Z,   1.20,   0.03,  99.90,   1.51,   0.28,
02/17 13Z,   1.20,  -0.27,  99.90,   1.18,   0.25,  (min)
02/17 14Z,   1.20,   0.65,  99.90,   2.08,   0.23,
02/17 15Z,   1.20,   2.53,  99.90,   3.93,   0.20,
02/17 16Z,   1.10,   4.19,  99.90,   5.47,   0.17,
02/17 17Z,   1.10,   5.27,  99.90,   6.54,   0.17,
02/17 18Z,   1.10,   5.95,  99.90,   7.22,   0.17,  (max)
02/17 19Z,   1.10,   5.94,  99.90,   7.22,   0.17,
02/17 20Z,   1.10,   5.16,  99.90,   6.44,   0.17,
02/17 21Z,   1.10,   4.08,  99.90,   5.35,   0.17,
02/17 22Z,   1.10,   2.97,  99.90,   4.24,   0.17,
02/17 23Z,   1.00,   1.87,  99.90,   3.04,   0.17,
02/18 00Z,   1.00,   0.81,  99.90,   1.98,   0.17,
02/18 01Z,   1.00,  -0.02,  99.90,   1.15,   0.17,  (min)
02/18 02Z,   1.00,   0.09,  99.90,   1.26,   0.17,
02/18 03Z,   1.00,   1.46,  99.90,   2.64,   0.17,
02/18 04Z,   1.00,   3.17,  99.90,   4.34,   0.17,
02/18 05Z,   1.00,   4.37,  99.90,   5.55,   0.17,
02/18 06Z,   0.90,   5.17,  99.90,   6.25,   0.17,
02/18 07Z,   0.90,   5.48,  99.90,   6.56,   0.17,  (max)
02/18 08Z,   0.90,   4.96,  99.90,   6.04,   0.17,
02/18 09Z,   0.90,   3.91,  99.90,   4.98,   0.17,
02/18 10Z,   0.90,   2.76,  99.90,   3.83,   0.17,
02/18 11Z,   0.90,   1.65,  99.90,   2.72,   0.17,
02/18 12Z,   0.90,   0.65,  99.90,   1.72,   0.17,
02/18 13Z,   0.90,  -0.13,  99.90,   0.94,   0.17,
02/18 14Z,   0.90,  -0.20,  99.90,   0.87,   0.17,  (min)
02/18 15Z,   0.90,   1.04,  99.90,   2.11,   0.17,
02/18 16Z,   0.90,   3.05,  99.90,   4.12,   0.17,
02/18 17Z,   0.90,   4.64,  99.90,   5.71,   0.17,
02/18 18Z,   1.00,   5.57,  99.90,   6.75,   0.17,
02/18 19Z,   1.00,   6.03,  99.90,   7.21,   0.17,  (max)
02/18 20Z,   1.00,   5.74,  99.90,   6.92,   0.17,
02/18 21Z,   1.00,   4.77,  99.90,   5.95,   0.17,
02/18 22Z,   1.00,   3.62,  99.90,   4.79,   0.17,
02/18 23Z,   1.00,   2.48,  99.90,   3.66,   0.17,
02/19 00Z,   1.00,   1.41,  99.90,   2.58,   0.17,
02/19 01Z,   1.00,   0.44,  99.90,   1.61,   0.17,
02/19 02Z,   1.00,  -0.15,  99.90,   1.02,   0.17,  (min)
02/19 03Z,   1.00,   0.38,  99.90,   1.55,   0.17,
02/19 04Z,   1.00,   2.08,  99.90,   3.26,   0.17,
02/19 05Z,   1.00,   3.84,  99.90,   5.02,   0.17,
02/19 06Z,   1.00,   4.94,  99.90,   6.11,   0.17,
02/19 07Z,   1.00,   5.55,  99.90,   6.72,   0.17,  (max)
02/19 08Z,   0.90,   5.57,  99.90,   6.64,   0.17,
02/19 09Z,   0.90,   4.79,  99.90,   5.86,   0.17,
02/19 10Z,   0.90,   3.63,  99.90,   4.71,   0.17,
02/19 11Z,   0.90,   2.47,  99.90,   3.54,   0.17,
02/19 12Z,   0.90,   1.38,  99.90,   2.45,   0.17,
02/19 13Z,   0.90,   0.43,  99.90,   1.50,   0.17,
02/19 14Z,   1.00,  -0.24,  99.90,   0.94,   0.17,  (min)
02/19 15Z,   1.00,  -0.05,  99.90,   1.13,   0.17,
02/19 16Z,   1.00,   1.47,  99.90,   2.65,   0.17,
02/19 17Z,   1.00,   3.53,  99.90,   4.71,   0.17,
02/19 18Z,   1.00,   4.98,  99.90,   6.16,   0.17,
02/19 19Z,   1.00,   5.75,  99.90,   6.92,   0.17,
02/19 20Z,   1.10,   5.98,  99.90,   7.25,   0.17,  (max)
02/19 21Z,   1.10,   5.43,  99.90,   6.70,   0.17,
02/19 22Z,   1.10,   4.31,  99.90,   5.58,   0.17,
02/19 23Z,   1.20,   3.11,  99.90,   4.49,   0.17,
02/20 00Z,   1.20,   1.99,  99.90,   3.36,   0.17,
02/20 01Z,   1.20,   0.97,  99.90,   2.34,   0.17,
02/20 02Z,   1.20,   0.14,  99.90,   1.51,   0.17,
02/20 03Z,   1.20,  -0.15,  99.90,   1.22,   0.17,  (min)
02/20 04Z,   1.20,   0.79,  99.90,   2.16,   0.17,
02/20 05Z,   1.20,   2.75,  99.90,   4.12,   0.17,
02/20 06Z,   1.20,   4.47,  99.90,   5.84,   0.17,
02/20 07Z,   1.20,   5.41,  99.90,   6.79,   0.17,
02/20 08Z,   1.20,   5.82,  99.90,   7.19,   0.17,  (max)
02/20 09Z,   1.20,   5.56,  99.90,   6.94,   0.17,
02/20 10Z,   1.20,   4.59,  99.90,   5.96,   0.17,
02/20 11Z,   1.20,   3.37,  99.90,   4.74,   0.17,
02/20 12Z,   1.20,   2.21,  99.90,   3.59,   0.17,
02/20 13Z,   1.20,   1.16,  99.90,   2.54,   0.17,
02/20 14Z,   1.20,   0.28,  99.90,   1.65,   0.17,
02/20 15Z,   1.20,  -0.26,  99.90,   1.12,   0.17,  (min)
02/20 16Z,   1.20,   0.18,  99.90,   1.56,   0.17,
02/20 17Z,   1.30,   1.90,  99.90,   3.38,   0.17,
02/20 18Z,   1.30,   3.91,  99.90,   5.39,   0.17,
02/20 19Z,  99.90,   5.17,  99.90,  99.90,   0.17,
02/20 20Z,  99.90,   5.77,  99.90,  99.90,   0.17,
02/20 21Z,  99.90,   5.79,  99.90,  99.90,   0.17,
02/20 22Z,  99.90,   5.04,  99.90,  99.90,   0.17,
02/20 23Z,  99.90,   3.84,  99.90,  99.90,   0.17,
02/21 00Z,  99.90,   2.63,  99.90,  99.90,   0.17,