The 2018 season

Tropical Storm Yagi (2018)

Tropical Storm Yagi peaked at 45 kt in the Western Pacific between August 6, 2018 and August 16, 2018, with a lowest pressure of 983 mb, and made landfall.

Track and intensity

The whole track of Tropical Storm Yagi, colored by strength, with the other storms of the 2018 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 6, 2018 to August 16, 2018
Peak strength
Tropical Storm, 45 kt (52 mph)
Lowest pressure
983 mb (29.03 inHg)
Landfall
Yes
Accumulated cyclone energy
2.8
Tropical-storm-force wind reached
130 nmi (241 km, 150 mi) from the center at its widest
Eyewall radius at its peak
30 nmi (56 km, 35 mi)
Overall size
300 nmi (556 km, 345 mi) to the outermost closed isobar
Fastest the center moved
22 kt (25 mph)
Identifier
WP182018

Radar at RODN as it neared land, Aug 11, 06:00 UTC

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Aug 6, 00:0018.2N 134.1E1000 mbTropical storm
Aug 6, 06:0018.6N 133.6E20 kt997 mbDisturbance
Aug 6, 12:0018.7N 133.4E25 kt998 mbTropical depression
Aug 6, 18:0018.8N 133.1E25 kt998 mbTropical depression
Aug 7, 00:0018.8N 132.9E25 kt995 mbTropical depression
Aug 7, 06:0018.8N 132.7E25 kt998 mbTropical depression
Aug 7, 12:0018.9N 132.5E30 kt995 mbTropical depression
Aug 7, 18:0019.1N 132.4E30 kt995 mbTropical depression
Aug 8, 00:0019.3N 132.6E35 kt996 mbTropical storm
Aug 8, 06:0019.5N 133.4E35 kt993 mbTropical storm
Aug 8, 12:0019.9N 134.0E35 kt995 mbTropical storm
Aug 8, 18:0020.5N 134.1E35 kt995 mbTropical storm
Aug 9, 00:0020.9N 133.7E35 kt994 mbTropical storm
Aug 9, 06:0020.8N 133.5E40 kt993 mbTropical storm
Aug 9, 12:0021.3N 133.5E40 kt991 mbTropical storm
Aug 9, 18:0022.1N 132.8E40 kt991 mbTropical storm
Aug 10, 00:0022.8N 132.2E35 kt996 mbTropical storm
Aug 10, 06:0022.9N 132.2E35 kt993 mbTropical storm
Aug 10, 12:0023.3N 131.9E35 kt992 mbTropical storm
Aug 10, 18:0024.3N 131.0E35 kt994 mbTropical storm
Aug 11, 00:0025.0N 129.5E35 kt994 mbTropical storm
Aug 11, 06:0024.9N 128.2E35 kt992 mbTropical storm
Aug 11, 12:0024.9N 126.9E40 kt989 mbTropical storm
Aug 11, 18:0025.1N 125.6E40 kt993 mbTropical storm
Aug 12, 00:0025.6N 124.8E40 kt986 mbTropical storm
Aug 12, 06:0026.6N 123.8E40 kt993 mbTropical storm
Aug 12, 12:0027.8N 122.3E45 kt983 mbTropical storm
Aug 12, 18:0029.2N 120.7E35 kt996 mbTropical storm
Aug 13, 00:0030.5N 119.3E30 kt993 mbTropical depression
Aug 13, 06:0031.9N 117.7E30 kt1000 mbTropical depression
Aug 13, 12:0033.0N 116.8E25 kt1004 mbTropical depression
Aug 13, 18:0034.4N 116.2E25 kt1004 mbTropical depression
Aug 14, 00:0036.0N 116.3E25 kt1004 mbTropical depression
Aug 14, 06:0037.0N 116.7E25 kt1004 mbExtratropical
Aug 14, 12:0037.6N 117.1E25 kt1004 mbExtratropical
Aug 14, 18:0037.8N 118.2E1002 mbTropical storm
Aug 15, 00:0038.1N 119.4E1002 mbTropical storm
Aug 15, 06:0037.8N 119.7E1000 mbMixed
Aug 15, 12:0037.2N 119.2E1000 mbMixed
Aug 15, 18:0036.5N 118.0E1004 mbMixed
Aug 16, 00:0035.6N 116.6E1006 mbMixed

Other Western Pacific storms of 2018

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.