The 2011 season

Tropical Storm Washi (2011)

Tropical Storm Washi peaked at 50 kt in the Western Pacific between December 11, 2011 and December 19, 2011, with a lowest pressure of 985 mb, and made landfall.

Track and intensity

The whole track of Tropical Storm Washi, colored by strength, with the other storms of the 2011 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
December 11, 2011 to December 19, 2011
Peak strength
Tropical Storm, 50 kt (58 mph)
Lowest pressure
985 mb (29.09 inHg)
Landfall
Yes
Accumulated cyclone energy
2.8
Tropical-storm-force wind reached
60 nmi (111 km, 69 mi) from the center at its widest
Eyewall radius at its peak
30 nmi (56 km, 35 mi)
Overall size
160 nmi (296 km, 184 mi) to the outermost closed isobar
Fastest the center moved
23 kt (26 mph)
Identifier
WP272011

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Dec 11, 18:003.4N 155.9E15 kt1010 mbDisturbance
Dec 12, 00:004.4N 154.5E20 kt1007 mbTropical depression
Dec 12, 06:005.2N 153.0E20 kt1007 mbDisturbance
Dec 12, 12:005.5N 151.1E20 kt1007 mbDisturbance
Dec 12, 18:005.5N 148.9E25 kt1004 mbTropical depression
Dec 13, 00:006.0N 146.7E25 kt1004 mbTropical depression
Dec 13, 06:006.0N 145.2E30 kt1000 mbTropical depression
Dec 13, 12:006.2N 143.5E30 kt1005 mbTropical depression
Dec 13, 18:005.9N 141.9E30 kt1000 mbTropical depression
Dec 14, 00:005.7N 140.6E30 kt1000 mbTropical depression
Dec 14, 06:006.0N 139.3E30 kt1000 mbTropical depression
Dec 14, 12:006.6N 137.8E30 kt1000 mbTropical depression
Dec 14, 18:006.9N 136.2E30 kt1000 mbTropical depression
Dec 15, 00:007.2N 134.5E35 kt996 mbTropical storm
Dec 15, 06:007.7N 132.5E35 kt996 mbTropical storm
Dec 15, 12:007.7N 130.8E40 kt993 mbTropical storm
Dec 15, 18:007.6N 129.4E45 kt989 mbTropical storm
Dec 16, 00:007.6N 128.0E45 kt989 mbTropical storm
Dec 16, 06:008.0N 126.6E45 kt989 mbTropical storm
Dec 16, 12:008.3N 125.3E45 kt989 mbTropical storm
Dec 16, 18:008.7N 123.7E45 kt989 mbTropical storm
Dec 17, 00:009.0N 122.4E50 kt985 mbTropical storm
Dec 17, 06:009.1N 121.5E45 kt989 mbTropical storm
Dec 17, 12:009.7N 120.3E45 kt989 mbTropical storm
Dec 17, 18:0010.2N 118.9E45 kt993 mbTropical storm
Dec 18, 00:0010.4N 117.4E40 kt993 mbTropical storm
Dec 18, 06:0010.3N 115.9E40 kt993 mbTropical storm
Dec 18, 12:0010.2N 114.7E35 kt996 mbTropical storm
Dec 18, 18:009.6N 113.9E35 kt996 mbTropical storm
Dec 19, 00:009.7N 113.0E25 kt1004 mbTropical depression
Dec 19, 06:009.4N 112.2E20 kt1007 mbDisturbance
Dec 19, 12:009.2N 111.4ETropical storm

Other Western Pacific storms of 2011

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.