The 2007 season

Typhoon Usagi (2007)

Typhoon Usagi reached Category 4 in the Western Pacific between July 27, 2007 and August 4, 2007, with a lowest pressure of 933 mb, and made landfall.

Track and intensity

The whole track of Typhoon Usagi, 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
July 27, 2007 to August 4, 2007
Peak strength
Category 4, 120 kt (138 mph)
Lowest pressure
933 mb (27.55 inHg)
Landfall
Yes
Accumulated cyclone energy
16.3
Tropical-storm-force wind reached
170 nmi (315 km, 196 mi) from the center at its widest
Hurricane-force wind reached
80 nmi (148 km, 92 mi) from the center at its widest
Eyewall radius at its peak
30 nmi (56 km, 35 mi)
Overall size
290 nmi (537 km, 334 mi) to the outermost closed isobar
Fastest the center moved
31 kt (36 mph)
Identifier
WP052007

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Jul 27, 00:0020.1N 155.4E15 kt1010 mbDisturbance
Jul 27, 06:0019.5N 154.7E20 kt1007 mbDisturbance
Jul 27, 12:0018.7N 154.2E20 kt1007 mbDisturbance
Jul 27, 18:0018.1N 153.4E20 kt1007 mbDisturbance
Jul 28, 00:0017.9N 152.1E20 kt1005 mbDisturbance
Jul 28, 06:0017.7N 150.8E20 kt1005 mbDisturbance
Jul 28, 12:0017.8N 149.4E25 kt1002 mbTropical depression
Jul 28, 18:0018.2N 148.2E30 kt1000 mbTropical depression
Jul 29, 00:0018.4N 147.0E35 kt996 mbTropical storm
Jul 29, 06:0018.5N 145.5E35 kt996 mbTropical storm
Jul 29, 12:0018.4N 144.1E45 kt989 mbTropical storm
Jul 29, 18:0018.7N 143.3E65 kt974 mbTyphoon
Jul 30, 00:0019.5N 142.7E65 kt974 mbTyphoon
Jul 30, 06:0020.0N 141.9E75 kt967 mbTyphoon
Jul 30, 12:0020.8N 141.4E75 kt967 mbTyphoon
Jul 30, 18:0021.4N 140.7E80 kt963 mbTyphoon
Jul 31, 00:0021.9N 139.9E85 kt959 mbTyphoon
Jul 31, 06:0022.8N 139.6E90 kt956 mbTyphoon
Jul 31, 12:0023.4N 138.9E105 kt944 mbTyphoon
Jul 31, 18:0024.2N 137.9E115 kt937 mbTyphoon
Aug 1, 00:0025.1N 136.9E120 kt933 mbTyphoon
Aug 1, 06:0026.2N 135.8E115 kt937 mbTyphoon
Aug 1, 12:0027.5N 134.9E115 kt937 mbTyphoon
Aug 1, 18:0029.0N 133.8E115 kt937 mbTyphoon
Aug 2, 00:0030.6N 132.9E105 kt944 mbTyphoon
Aug 2, 06:0032.0N 132.0E90 kt956 mbTyphoon
Aug 2, 12:0033.1N 131.6E80 kt963 mbTyphoon
Aug 2, 18:0034.4N 131.4E65 kt974 mbTyphoon
Aug 3, 00:0035.7N 132.2E65 kt974 mbTyphoon
Aug 3, 06:0037.2N 133.6E55 kt982 mbTropical storm
Aug 3, 12:0038.6N 135.3E45 kt989 mbTropical storm
Aug 3, 18:0039.7N 136.9E40 kt993 mbExtratropical
Aug 4, 00:0040.6N 139.1E30 kt1000 mbExtratropical
Aug 4, 06:0041.2N 141.4E30 kt1000 mbExtratropical
Aug 4, 12:0042.0N 145.4E1000 mbExtratropical
Aug 4, 18:0042.3N 148.9E1000 mbExtratropical

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.