The 2017 season

Tropical Storm Muifa (2017)

Tropical Storm Muifa peaked at 40 kt in the Western Pacific between April 22, 2017 and April 29, 2017, with a lowest pressure of 993 mb.

Track and intensity

The whole track of Tropical Storm Muifa, colored by strength, with the other storms of the 2017 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
April 22, 2017 to April 29, 2017
Peak strength
Tropical Storm, 40 kt (46 mph)
Lowest pressure
993 mb (29.32 inHg)
Landfall
No; closest approach 1000 km (621 mi)
Accumulated cyclone energy
0.9
Tropical-storm-force wind reached
55 nmi (102 km, 63 mi) from the center at its widest
Eyewall radius at its peak
25 nmi (46 km, 29 mi)
Overall size
175 nmi (324 km, 201 mi) to the outermost closed isobar
Peak gust in the best track
50 kt (58 mph)
Fastest the center moved
21 kt (24 mph)
Identifier
WP032017

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Apr 22, 18:008.8N 144.0E1006 mbTropical storm
Apr 23, 00:009.3N 143.2E1006 mbTropical storm
Apr 23, 06:0010.0N 142.4E1006 mbTropical storm
Apr 23, 12:0010.7N 141.8E1006 mbTropical storm
Apr 23, 18:0011.3N 140.8E1006 mbTropical storm
Apr 24, 00:0011.9N 139.8E1006 mbTropical storm
Apr 24, 06:0012.2N 138.8E1004 mbTropical storm
Apr 24, 12:0012.4N 138.2E1004 mbTropical storm
Apr 24, 18:0012.4N 136.5E20 kt1007 mbDisturbance
Apr 25, 00:0012.6N 136.3E25 kt1004 mbTropical depression
Apr 25, 06:0012.7N 136.1E30 kt1005 mbTropical depression
Apr 25, 12:0012.8N 135.9E30 kt1005 mbTropical depression
Apr 25, 18:0012.9N 135.4E35 kt996 mbTropical storm
Apr 26, 00:0013.0N 134.8E35 kt996 mbTropical storm
Apr 26, 06:0013.3N 134.4E35 kt996 mbTropical storm
Apr 26, 12:0013.8N 134.2E35 kt996 mbTropical storm
Apr 26, 18:0014.6N 134.3E40 kt993 mbTropical storm
Apr 27, 00:0015.2N 134.5E40 kt993 mbTropical storm
Apr 27, 06:0015.9N 134.6E35 kt996 mbTropical storm
Apr 27, 12:0017.0N 134.6E30 kt1006 mbTropical depression
Apr 27, 18:0017.9N 134.8E25 kt1007 mbTropical depression
Apr 28, 00:0018.4N 135.5E20 kt1007 mbDisturbance
Apr 28, 06:0018.9N 136.3E15 kt1008 mbDisturbance
Apr 28, 12:0019.9N 137.7E1008 mbTropical storm
Apr 28, 18:0020.8N 139.1E1008 mbTropical storm
Apr 29, 00:0021.6N 140.3E1008 mbTropical storm
Apr 29, 06:0022.8N 141.9E1008 mbTropical storm

Other Western Pacific storms of 2017

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.