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
Naples, FL
St Petersburg, FL
Clearwater, FL
Cedar Key, FL
Apalachicola, FL
Panama City, FL
Pensacola, FL
Waveland, MS
Grand Isle, LA
Sabine Pass, TX
Galveston, TX
Freeport, TX
Port Aransas, TX
Padre Island, TX
Surge List
Gulf Coast
#Ketchikan, AK : 04/27/2025 14:20:55 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/25 18Z,  -0.20,  12.49,  11.91,  99.90,  -0.38,
04/25 19Z,  -0.20,  14.61,  13.96,  99.90,  -0.45,
04/25 20Z,  -0.20,  14.93,  14.33,  99.90,  -0.40,  (max)
04/25 21Z,  -0.20,  13.35,  12.91,  99.90,  -0.24,
04/25 22Z,  -0.20,  10.25,   9.82,  99.90,  -0.23,
04/25 23Z,  -0.10,   6.40,   6.00,  99.90,  -0.30,
04/26 00Z,  -0.20,   2.84,   2.39,  99.90,  -0.25,
04/26 01Z,  -0.20,   0.53,   0.08,  99.90,  -0.25,
04/26 02Z,  -0.20,   0.14,  -0.35,  99.90,  -0.29,  (min)
04/26 03Z,  -0.20,   1.79,   1.26,  99.90,  -0.33,
04/26 04Z,  -0.30,   5.07,   4.54,  99.90,  -0.23,
04/26 05Z,  -0.30,   9.17,   8.63,  99.90,  -0.24,
04/26 06Z,  -0.40,  13.10,  12.62,  99.90,  -0.08,
04/26 07Z,  -0.40,  15.93,  15.54,  99.90,   0.01,
04/26 08Z,  -0.40,  16.95,  16.65,  99.90,   0.10,  (max)
04/26 09Z,  -0.30,  15.83,  15.53,  99.90,   0.00,
04/26 10Z,  -0.30,  12.74,  12.38,  99.90,  -0.06,
04/26 11Z,  -0.30,   8.35,   7.96,  99.90,  -0.09,
04/26 12Z,  -0.30,   3.71,   3.29,  99.90,  -0.12,
04/26 13Z,  -0.30,  -0.00,  -0.36,  99.90,  -0.06,
04/26 14Z,  -0.30,  -1.83,  -2.05,  99.90,   0.08,  (min)
04/26 15Z,  -0.30,  -1.34,  -1.50,  99.90,   0.14,
04/26 16Z,  -0.30,   1.29,   1.08,  99.90,   0.09,
04/26 17Z,  -0.30,   5.32,   5.01,  99.90,  -0.01,
04/26 18Z,  -0.40,   9.72,   9.27,  99.90,  -0.05,
04/26 19Z,  -0.40,  13.41,  12.82,  99.90,  -0.19,
04/26 20Z,  -0.40,  15.52,  14.92,  99.90,  -0.20,
04/26 21Z,  -0.40,  15.55,  14.96,  99.90,  -0.19,  (max)
04/26 22Z,  -0.30,  13.49,  12.90,  99.90,  -0.29,
04/26 23Z,  -0.30,   9.89,   9.32,  99.90,  -0.27,
04/27 00Z,  -0.30,   5.71,   5.17,  99.90,  -0.24,
04/27 01Z,  -0.30,   2.12,   1.62,  99.90,  -0.20,
04/27 02Z,  -0.30,   0.16,  -0.27,  99.90,  -0.13,  (min)
04/27 03Z,  -0.30,   0.40,   0.07,  99.90,  -0.03,
04/27 04Z,  -0.30,   2.79,   2.47,  99.90,  -0.02,
04/27 05Z,  -0.30,   6.72,   6.34,  99.90,  -0.08,
04/27 06Z,  -0.40,  11.20,  10.82,  99.90,   0.02,
04/27 07Z,  -0.40,  15.15,  14.82,  99.90,   0.07,
04/27 08Z,  -0.40,  17.61,  17.32,  99.90,   0.11,
04/27 09Z,  -0.40,  17.93,  17.63,  99.90,   0.10,  (max)
04/27 10Z,  -0.30,  15.90,  15.51,  99.90,  -0.09,
04/27 11Z,  -0.30,  11.87,  11.33,  99.90,  -0.24,
04/27 12Z,  -0.30,   6.72,   6.13,  99.90,  -0.29,
04/27 13Z,  -0.30,   1.67,   1.17,  99.90,  -0.20,
04/27 14Z,  -0.30,  -2.00,  -2.35,  99.90,  -0.05,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/27 15Z,  -0.30,  -3.39,  99.90,  -3.74,  -0.05,  (min)
04/27 16Z,  -0.30,  -2.19,  99.90,  -2.55,  -0.05,
04/27 17Z,  -0.40,   1.17,  99.90,   0.71,  -0.06,
04/27 18Z,  -0.40,   5.79,  99.90,   5.33,  -0.06,
04/27 19Z,  -0.40,  10.51,  99.90,  10.05,  -0.06,
04/27 20Z,  -0.40,  14.22,  99.90,  13.76,  -0.07,
04/27 21Z,  -0.30,  16.08,  99.90,  15.71,  -0.07,  (max)
04/27 22Z,  -0.20,  15.69,  99.90,  15.41,  -0.07,
04/27 23Z,  -0.20,  13.17,  99.90,  12.89,  -0.08,
04/28 00Z,  -0.10,   9.22,  99.90,   9.04,  -0.08,
04/28 01Z,   0.00,   4.97,  99.90,   4.88,  -0.08,
04/28 02Z,   0.00,   1.66,  99.90,   1.57,  -0.09,
04/28 03Z,   0.00,   0.27,  99.90,   0.18,  -0.09,  (min)
04/28 04Z,   0.00,   1.22,  99.90,   1.14,  -0.09,
04/28 05Z,   0.00,   4.26,  99.90,   4.17,  -0.09,
04/28 06Z,   0.00,   8.59,  99.90,   8.50,  -0.09,
04/28 07Z,   0.00,  13.13,  99.90,  13.04,  -0.09,
04/28 08Z,   0.00,  16.77,  99.90,  16.69,  -0.09,
04/28 09Z,   0.00,  18.63,  99.90,  18.55,  -0.09,  (max)
04/28 10Z,   0.10,  18.16,  99.90,  18.17,  -0.09,
04/28 11Z,   0.20,  15.29,  99.90,  15.40,  -0.09,
04/28 12Z,   0.40,  10.55,  99.90,  10.86,  -0.09,
04/28 13Z,   0.50,   4.98,  99.90,   5.40,  -0.09,
04/28 14Z,   0.50,  -0.07,  99.90,   0.34,  -0.09,
04/28 15Z,   0.60,  -3.36,  99.90,  -2.85,  -0.09,
04/28 16Z,   0.50,  -4.11,  99.90,  -3.70,  -0.09,  (min)
04/28 17Z,   0.40,  -2.24,  99.90,  -1.93,  -0.09,
04/28 18Z,   0.30,   1.65,  99.90,   1.87,  -0.09,
04/28 19Z,   0.20,   6.55,  99.90,   6.66,  -0.09,
04/28 20Z,   0.10,  11.25,  99.90,  11.27,  -0.09,
04/28 21Z,   0.10,  14.71,  99.90,  14.72,  -0.09,
04/28 22Z,   0.10,  16.16,  99.90,  16.17,  -0.09,  (max)
04/28 23Z,   0.20,  15.31,  99.90,  15.42,  -0.09,
04/29 00Z,   0.20,  12.44,  99.90,  12.56,  -0.09,
04/29 01Z,   0.20,   8.40,  99.90,   8.51,  -0.09,
04/29 02Z,   0.10,   4.38,  99.90,   4.39,  -0.09,
04/29 03Z,   0.10,   1.60,  99.90,   1.61,  -0.09,
04/29 04Z,   0.00,   0.90,  99.90,   0.81,  -0.09,  (min)
04/29 05Z,  -0.10,   2.48,  99.90,   2.29,  -0.09,
04/29 06Z,  -0.20,   5.92,  99.90,   5.63,  -0.09,
04/29 07Z,  -0.20,  10.32,  99.90,  10.03,  -0.09,
04/29 08Z,  -0.30,  14.58,  99.90,  14.20,  -0.09,
04/29 09Z,  -0.30,  17.69,  99.90,  17.31,  -0.09,
04/29 10Z,  -0.30,  18.85,  99.90,  18.46,  -0.09,  (max)
04/29 11Z,  -0.20,  17.64,  99.90,  17.35,  -0.09,
04/29 12Z,  -0.20,  14.15,  99.90,  13.87,  -0.09,
04/29 13Z,  -0.20,   9.06,  99.90,   8.77,  -0.09,
04/29 14Z,  -0.20,   3.50,  99.90,   3.22,  -0.09,
04/29 15Z,  -0.20,  -1.18,  99.90,  -1.46,  -0.09,
04/29 16Z,  -0.30,  -3.85,  99.90,  -4.24,  -0.09,
04/29 17Z,  -0.40,  -3.95,  99.90,  -4.44,  -0.09,  (min)
04/29 18Z,  -0.40,  -1.59,  99.90,  -2.08,  -0.09,
04/29 19Z,  -0.50,   2.53,  99.90,   1.94,  -0.09,
04/29 20Z,  -0.60,   7.34,  99.90,   6.66,  -0.09,
04/29 21Z,  -0.60,  11.74,  99.90,  11.05,  -0.09,
04/29 22Z,  -0.50,  14.74,  99.90,  14.15,  -0.09,
04/29 23Z,  -0.40,  15.71,  99.90,  15.22,  -0.09,  (max)
04/30 00Z,  -0.30,  14.49,  99.90,  14.11,  -0.09,
04/30 01Z,  -0.20,  11.50,  99.90,  11.22,  -0.09,
04/30 02Z,  -0.20,   7.65,  99.90,   7.37,  -0.09,
04/30 03Z,  -0.30,   4.13,  99.90,   3.74,  -0.09,
04/30 04Z,  -0.40,   2.01,  99.90,   1.53,  -0.09,
04/30 05Z,  -0.40,   1.94,  99.90,   1.46,  -0.09,  (min)
04/30 06Z,  -0.50,   3.94,  99.90,   3.35,  -0.09,
04/30 07Z,  -0.50,   7.46,  99.90,   6.87,  -0.09,
04/30 08Z,  -0.50,  11.59,  99.90,  11.00,  -0.09,
04/30 09Z,  -0.60,  15.34,  99.90,  14.65,  -0.09,
04/30 10Z,  -0.50,  17.79,  99.90,  17.20,  -0.09,
04/30 11Z,  -0.50,  18.28,  99.90,  17.69,  -0.09,  (max)
04/30 12Z,  -0.40,  16.52,  99.90,  16.03,  -0.09,
04/30 13Z,  -0.40,  12.75,  99.90,  12.26,  -0.09,
04/30 14Z,  -0.40,   7.72,  99.90,   7.23,  -0.09,
04/30 15Z,  -0.40,   2.57,  99.90,   2.08,  -0.09,
04/30 16Z,  -0.40,  -1.47,  99.90,  -1.95,  -0.09,
04/30 17Z,  -0.40,  -3.47,  99.90,  -3.95,  -0.09,  (min)
04/30 18Z,  -0.50,  -3.06,  99.90,  -3.64,  -0.09,
04/30 19Z,  -0.50,  -0.48,  99.90,  -1.07,  -0.09,
04/30 20Z,  -0.50,   3.52,  99.90,   2.93,  -0.09,
04/30 21Z,  -0.40,   7.95,  99.90,   7.47,  -0.09,
04/30 22Z,  -0.40,  11.82,  99.90,  11.34,  -0.09,
04/30 23Z,  -0.30,  14.28,  99.90,  13.90,  -0.09,
05/01 00Z,  -0.20,  14.83,  99.90,  14.55,  -0.09,  (max)
05/01 01Z,  -0.20,  13.44,  99.90,  13.15,  -0.09,
05/01 02Z,  -0.20,  10.58,  99.90,  10.30,  -0.09,
05/01 03Z,  -0.20,   7.18,  99.90,   6.90,  -0.09,
05/01 04Z,  -0.20,   4.31,  99.90,   4.02,  -0.09,
05/01 05Z,  -0.20,   2.84,  99.90,   2.55,  -0.09,  (min)
05/01 06Z,  -0.20,   3.21,  99.90,   2.92,  -0.09,