The 2007 season

Super Typhoon Sepat (2007)

Super Typhoon Sepat reached Category 5 in the Western Pacific between August 11, 2007 and August 24, 2007, with a lowest pressure of 918 mb, and made landfall.

Track and intensity

The whole track of Super Typhoon Sepat, colored by strength, with the other storms of the 2007 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.

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The storm

Basin
Western Pacific
Dates
August 11, 2007 to August 24, 2007
Peak strength
Category 5, 140 kt (161 mph)
Lowest pressure
918 mb (27.11 inHg)
Landfall
Yes
Accumulated cyclone energy
29.7
Tropical-storm-force wind reached
215 nmi (398 km, 247 mi) from the center at its widest
Hurricane-force wind reached
65 nmi (120 km, 75 mi) from the center at its widest
Eyewall radius at its peak
15 nmi (28 km, 17 mi)
Overall size
285 nmi (528 km, 328 mi) to the outermost closed isobar
Fastest the center moved
12 kt (14 mph)
Identifier
WP092007

Deaths and damage

No source this site reads carries a casualty or damage figure for this storm.

Track

Time (UTC)PositionWindPressureStatus
Aug 11, 00:0018.6N 136.1E15 kt1010 mbDisturbance
Aug 11, 06:0018.3N 135.8E15 kt1010 mbDisturbance
Aug 11, 12:0018.0N 135.6E20 kt1007 mbDisturbance
Aug 11, 18:0017.8N 135.5E20 kt1004 mbDisturbance
Aug 12, 00:0017.6N 135.5E25 kt1004 mbTropical depression
Aug 12, 06:0017.4N 135.4E35 kt996 mbTropical storm
Aug 12, 12:0017.0N 135.2E45 kt989 mbTropical storm
Aug 12, 18:0016.7N 134.8E50 kt985 mbTropical storm
Aug 13, 00:0016.6N 134.3E50 kt985 mbTropical storm
Aug 13, 06:0016.5N 133.7E55 kt982 mbTropical storm
Aug 13, 12:0016.4N 133.0E60 kt978 mbTropical storm
Aug 13, 18:0016.3N 132.3E70 kt970 mbTyphoon
Aug 14, 00:0016.2N 131.5E80 kt963 mbTyphoon
Aug 14, 06:0016.0N 130.7E90 kt956 mbTyphoon
Aug 14, 12:0015.8N 129.9E100 kt948 mbTyphoon
Aug 14, 18:0015.5N 129.2E110 kt941 mbTyphoon
Aug 15, 00:0015.6N 128.5E130 kt926 mbSuper typhoon
Aug 15, 06:0015.9N 128.0E130 kt926 mbSuper typhoon
Aug 15, 12:0016.1N 127.6E135 kt922 mbSuper typhoon
Aug 15, 18:0016.6N 127.1E140 kt918 mbSuper typhoon
Aug 16, 00:0017.2N 126.6E140 kt918 mbSuper typhoon
Aug 16, 06:0017.9N 126.1E140 kt918 mbSuper typhoon
Aug 16, 12:0018.7N 125.6E140 kt918 mbSuper typhoon
Aug 16, 18:0019.4N 124.8E140 kt918 mbSuper typhoon
Aug 17, 00:0020.2N 124.2E135 kt922 mbSuper typhoon
Aug 17, 06:0021.0N 123.5E120 kt933 mbTyphoon
Aug 17, 12:0021.9N 122.8E115 kt937 mbTyphoon
Aug 17, 18:0022.7N 122.0E105 kt944 mbTyphoon
Aug 18, 00:0023.4N 121.2E100 kt948 mbTyphoon
Aug 18, 06:0024.0N 119.9E85 kt959 mbTyphoon
Aug 18, 12:0024.4N 119.4E75 kt967 mbTyphoon
Aug 18, 18:0024.8N 119.0E65 kt974 mbTyphoon
Aug 19, 00:0025.2N 118.6E55 kt982 mbTropical storm
Aug 19, 06:0025.6N 118.3E45 kt989 mbTropical storm
Aug 19, 12:0026.0N 118.0E35 kt996 mbTropical storm
Aug 19, 18:0026.4N 117.7E30 kt1000 mbTropical depression
Aug 20, 00:0027.1N 116.8E998 mbTropical storm
Aug 20, 06:0027.5N 116.5E998 mbTropical storm
Aug 20, 12:0027.7N 116.0E1000 mbMixed
Aug 20, 18:0027.8N 115.3E1000 mbMixed
Aug 21, 00:0027.8N 114.9E1000 mbMixed
Aug 21, 06:0027.7N 114.6E1000 mbMixed
Aug 21, 12:0027.7N 114.3E1000 mbMixed
Aug 21, 18:0027.7N 113.9E1000 mbMixed
Aug 22, 00:0027.7N 113.5E1000 mbMixed
Aug 22, 06:0027.8N 113.1E1000 mbMixed
Aug 22, 12:0027.9N 112.6E1002 mbMixed
Aug 22, 18:0028.1N 111.7E1002 mbMixed
Aug 23, 00:0028.1N 110.4E1004 mbMixed
Aug 23, 06:0027.9N 109.4E1002 mbMixed
Aug 23, 12:0027.4N 108.3E1004 mbMixed
Aug 23, 18:0026.7N 107.2E1004 mbMixed
Aug 24, 00:0025.9N 106.5E1006 mbMixed
Aug 24, 06:0025.0N 106.0E1006 mbMixed

Other Western Pacific storms of 2007

What this means

A best track is the record a warning agency settles on after the storm, not what it said at the time: position, maximum sustained wind and central pressure every six hours, revised against every observation that came in later. Category is the Saffir-Simpson scale, which runs from Category 1 at 64 kt to Category 5 at 137 kt and reads wind only, so it says nothing about surge or rain. Accumulated cyclone energy adds up the square of the wind through the storm's life, so it counts strength and duration together.

Sources

Storm history from NOAA NCEI’s International Best Track Archive for Climate Stewardship (IBTrACS), which merges the official best track of every warning agency. Live storms, cones, watches and warnings from the National Hurricane Center and the Central Pacific Hurricane Center. Archived radar from NOAA’s Level II archive.