EXTRA-TROPICAL  STORM  SURGE
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Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
Mid-Atlantic
Southeast
Gulf
Northwest
Alaska
Gulf of Alaska
Status
Stations
Atlantic City, NJ
Cape May, NJ
Philadelphia, PA
Reedy Pnt, DE
Lewes, DE
Ocean City, MD
Wachapreague
Kiptopeke, VA
Cambridge, MD
Baltimore, MD
Annapolis, MD
Solomons Is, MD
Washington DC
Colonial Beach
Lewisetta, VA
Gloucester Pnt
Hampton Road
Portsmouth, VA
CBBT, VA
Duck Pier, NC
Cape Hatteras NC
Surge List
East Coast
#Philadelphia, PA : 05/18/2026 03:21:23 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/16 12Z,   0.40,   0.95,   0.79,  99.90,  -0.56,
05/16 13Z,   0.40,   0.78,   0.14,  99.90,  -1.04,  (min)
05/16 14Z,   0.40,   1.98,   2.05,  99.90,  -0.33,
05/16 15Z,   0.40,   3.73,   3.98,  99.90,  -0.15,
05/16 16Z,   0.40,   5.08,   5.33,  99.90,  -0.15,
05/16 17Z,   0.40,   5.99,   6.24,  99.90,  -0.15,
05/16 18Z,   0.50,   6.36,   6.74,  99.90,  -0.12,  (max)
05/16 19Z,   0.50,   5.85,   6.06,  99.90,  -0.29,
05/16 20Z,   0.50,   4.79,   4.86,  99.90,  -0.43,
05/16 21Z,   0.50,   3.72,   3.76,  99.90,  -0.46,
05/16 22Z,   0.50,   2.74,   2.71,  99.90,  -0.53,
05/16 23Z,   0.50,   1.87,   1.61,  99.90,  -0.76,
05/17 00Z,   0.50,   1.12,   0.61,  99.90,  -1.01,
05/17 01Z,   0.50,   0.96,   0.19,  99.90,  -1.27,  (min)
05/17 02Z,   0.50,   2.11,   2.64,  99.90,   0.03,
05/17 03Z,   0.50,   4.20,   4.48,  99.90,  -0.22,
05/17 04Z,   0.50,   6.01,   5.94,  99.90,  -0.57,
05/17 05Z,   0.50,   7.14,   6.97,  99.90,  -0.67,
05/17 06Z,   0.50,   7.70,   7.73,  99.90,  -0.47,  (max)
05/17 07Z,   0.50,   7.44,   7.29,  99.90,  -0.65,
05/17 08Z,   0.40,   6.45,   6.03,  99.90,  -0.82,
05/17 09Z,   0.40,   5.30,   4.79,  99.90,  -0.91,
05/17 10Z,   0.40,   4.21,   3.67,  99.90,  -0.94,
05/17 11Z,   0.30,   3.09,   2.51,  99.90,  -0.88,
05/17 12Z,   0.30,   1.88,   1.41,  99.90,  -0.77,
05/17 13Z,   0.20,   0.83,   0.40,  99.90,  -0.63,
05/17 14Z,   0.20,   0.79,  -0.38,  99.90,  -1.37,  (min)
05/17 15Z,   0.20,   2.11,   1.30,  99.90,  -1.01,
05/17 16Z,   0.10,   3.84,   3.34,  99.90,  -0.60,
05/17 17Z,   0.10,   5.12,   4.70,  99.90,  -0.52,
05/17 18Z,   0.00,   5.99,   5.65,  99.90,  -0.34,
05/17 19Z,   0.00,   6.26,   6.17,  99.90,  -0.09,  (max)
05/17 20Z,   0.00,   5.66,   5.41,  99.90,  -0.25,
05/17 21Z,   0.00,   4.63,   4.20,  99.90,  -0.43,
05/17 22Z,   0.00,   3.62,   3.10,  99.90,  -0.52,
05/17 23Z,   0.00,   2.68,   2.02,  99.90,  -0.66,
05/18 00Z,   0.00,   1.80,   0.93,  99.90,  -0.87,
05/18 01Z,   0.00,   1.06,  -0.04,  99.90,  -1.10,
05/18 02Z,   0.00,   1.04,  -0.11,  99.90,  -1.15,  (min)
05/18 03Z,   0.00,   2.40,   2.51,  99.90,   0.11,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/18 04Z,   0.00,   4.53,  99.90,   4.59,   0.06,
05/18 05Z,   0.00,   6.23,  99.90,   6.24,   0.01,
05/18 06Z,   0.00,   7.26,  99.90,   7.22,  -0.04,
05/18 07Z,   0.00,   7.71,  99.90,   7.61,  -0.10,  (max)
05/18 08Z,   0.00,   7.32,  99.90,   7.17,  -0.15,
05/18 09Z,   0.00,   6.32,  99.90,   6.12,  -0.20,
05/18 10Z,   0.00,   5.24,  99.90,   4.99,  -0.25,
05/18 11Z,   0.00,   4.19,  99.90,   3.88,  -0.31,
05/18 12Z,   0.00,   3.05,  99.90,   2.69,  -0.36,
05/18 13Z,   0.00,   1.78,  99.90,   1.37,  -0.41,
05/18 14Z,   0.00,   0.74,  99.90,   0.28,  -0.46,  (min)
05/18 15Z,   0.00,   0.85,  99.90,   0.33,  -0.52,
05/18 16Z,   0.00,   2.27,  99.90,   1.75,  -0.52,
05/18 17Z,   0.00,   3.93,  99.90,   3.41,  -0.52,
05/18 18Z,   0.00,   5.14,  99.90,   4.62,  -0.52,
05/18 19Z,   0.00,   5.97,  99.90,   5.45,  -0.52,
05/18 20Z,   0.00,   6.15,  99.90,   5.63,  -0.52,  (max)
05/18 21Z,   0.00,   5.51,  99.90,   4.99,  -0.52,
05/18 22Z,   0.00,   4.53,  99.90,   4.01,  -0.52,
05/18 23Z,   0.00,   3.57,  99.90,   3.05,  -0.52,
05/19 00Z,   0.00,   2.64,  99.90,   2.13,  -0.52,
05/19 01Z,   0.00,   1.75,  99.90,   1.23,  -0.52,
05/19 02Z,   0.00,   1.02,  99.90,   0.50,  -0.52,  (min)
05/19 03Z,   0.00,   1.14,  99.90,   0.62,  -0.52,
05/19 04Z,   0.00,   2.65,  99.90,   2.13,  -0.52,
05/19 05Z,   0.00,   4.74,  99.90,   4.22,  -0.52,
05/19 06Z,   0.10,   6.30,  99.90,   5.88,  -0.52,
05/19 07Z,   0.10,   7.24,  99.90,   6.82,  -0.52,
05/19 08Z,   0.10,   7.59,  99.90,   7.18,  -0.52,  (max)
05/19 09Z,   0.00,   7.14,  99.90,   6.62,  -0.52,
05/19 10Z,   0.00,   6.17,  99.90,   5.66,  -0.52,
05/19 11Z,   0.00,   5.17,  99.90,   4.65,  -0.52,
05/19 12Z,   0.00,   4.14,  99.90,   3.63,  -0.52,
05/19 13Z,   0.00,   2.97,  99.90,   2.46,  -0.52,
05/19 14Z,   0.00,   1.65,  99.90,   1.14,  -0.52,
05/19 15Z,   0.00,   0.67,  99.90,   0.16,  -0.52,  (min)
05/19 16Z,   0.00,   0.95,  99.90,   0.43,  -0.52,
05/19 17Z,   0.00,   2.43,  99.90,   1.91,  -0.52,
05/19 18Z,   0.00,   3.99,  99.90,   3.47,  -0.52,
05/19 19Z,   0.00,   5.14,  99.90,   4.62,  -0.52,
05/19 20Z,   0.00,   5.94,  99.90,   5.42,  -0.52,
05/19 21Z,   0.00,   6.06,  99.90,   5.55,  -0.52,  (max)
05/19 22Z,   0.00,   5.42,  99.90,   4.90,  -0.52,
05/19 23Z,   0.00,   4.50,  99.90,   3.98,  -0.52,
05/20 00Z,   0.00,   3.57,  99.90,   3.05,  -0.52,
05/20 01Z,   0.00,   2.63,  99.90,   2.12,  -0.52,
05/20 02Z,   0.00,   1.70,  99.90,   1.18,  -0.52,
05/20 03Z,   0.00,   0.98,  99.90,   0.46,  -0.52,  (min)
05/20 04Z,   0.00,   1.24,  99.90,   0.72,  -0.52,
05/20 05Z,   0.00,   2.84,  99.90,   2.32,  -0.52,
05/20 06Z,   0.00,   4.82,  99.90,   4.31,  -0.52,
05/20 07Z,   0.00,   6.23,  99.90,   5.71,  -0.52,
05/20 08Z,   0.00,   7.10,  99.90,   6.58,  -0.52,
05/20 09Z,   0.00,   7.41,  99.90,   6.89,  -0.52,  (max)
05/20 10Z,  -0.10,   6.93,  99.90,   6.32,  -0.52,
05/20 11Z,  -0.10,   6.03,  99.90,   5.41,  -0.52,
05/20 12Z,  -0.10,   5.09,  99.90,   4.47,  -0.52,
05/20 13Z,  -0.10,   4.06,  99.90,   3.45,  -0.52,
05/20 14Z,  -0.10,   2.86,  99.90,   2.24,  -0.52,
05/20 15Z,  -0.10,   1.51,  99.90,   0.89,  -0.52,
05/20 16Z,  -0.20,   0.62,  99.90,  -0.10,  -0.52,  (min)
05/20 17Z,  -0.20,   1.06,  99.90,   0.34,  -0.52,
05/20 18Z,  -0.20,   2.55,  99.90,   1.84,  -0.52,
05/20 19Z,  -0.20,   4.01,  99.90,   3.30,  -0.52,
05/20 20Z,  -0.20,   5.12,  99.90,   4.41,  -0.52,
05/20 21Z,  -0.20,   5.93,  99.90,   5.21,  -0.52,
05/20 22Z,  -0.20,   6.04,  99.90,   5.32,  -0.52,  (max)
05/20 23Z,  -0.20,   5.41,  99.90,   4.70,  -0.52,
05/21 00Z,  -0.20,   4.54,  99.90,   3.82,  -0.52,
05/21 01Z,  -0.20,   3.62,  99.90,   2.90,  -0.52,
05/21 02Z,  -0.20,   2.65,  99.90,   1.93,  -0.52,
05/21 03Z,  -0.20,   1.67,  99.90,   0.95,  -0.52,
05/21 04Z,  -0.20,   0.96,  99.90,   0.25,  -0.52,  (min)
05/21 05Z,  -0.20,   1.33,  99.90,   0.61,  -0.52,
05/21 06Z,  -0.20,   2.96,  99.90,   2.24,  -0.52,
05/21 07Z,  -0.30,   4.78,  99.90,   3.96,  -0.52,
05/21 08Z,  -0.30,   6.04,  99.90,   5.22,  -0.52,
05/21 09Z,  -0.30,   6.89,  99.90,   6.07,  -0.52,
05/21 10Z,  -0.30,   7.19,  99.90,   6.37,  -0.52,  (max)
05/21 11Z,  -0.30,   6.73,  99.90,   5.91,  -0.52,
05/21 12Z,  -0.40,   5.89,  99.90,   4.97,  -0.52,
05/21 13Z,  -0.40,   4.98,  99.90,   4.06,  -0.52,
05/21 14Z,  -0.30,   3.95,  99.90,   3.13,  -0.52,
05/21 15Z,  -0.30,   2.70,  99.90,   1.88,  -0.52,
05/21 16Z,  -0.30,   1.35,  99.90,   0.53,  -0.52,
05/21 17Z,  -0.30,   0.58,  99.90,  -0.24,  -0.52,  (min)
05/21 18Z,  -0.20,   1.17,  99.90,   0.45,  -0.52,
05/21 19Z,  99.90,   2.64,  99.90,  99.90,  -0.52,
05/21 20Z,  99.90,   4.01,  99.90,  99.90,  -0.52,
05/21 21Z,  99.90,   5.13,  99.90,  99.90,  -0.52,
05/21 22Z,  99.90,   5.97,  99.90,  99.90,  -0.52,
05/21 23Z,  99.90,   6.08,  99.90,  99.90,  -0.52,
05/22 00Z,  99.90,   5.49,  99.90,  99.90,  -0.52,