The 2017 season

Tropical Storm Roke (2017)

Tropical Storm Roke peaked at 35 kt in the Western Pacific between July 21, 2017 and July 23, 2017, with a lowest pressure of 996 mb, and made landfall.

Radar

Reflectivity now over Tropical Storm Roke. Open it to see storms, cones and warnings on the map.

Open the live radar with storms, cones and warnings

Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.

The storm

Basin
Western Pacific
Dates
July 21, 2017 to July 23, 2017
Peak strength
Tropical Storm, 35 kt (40 mph)
Lowest pressure
996 mb (29.41 inHg)
Landfall
Yes
Accumulated cyclone energy
0.4
Identifier
WP102017

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Jul 21, 06:0018.5N 124.0E20 kt1007 mbDisturbance
Jul 21, 12:0019.1N 123.0E20 kt1007 mbDisturbance
Jul 21, 18:0019.7N 122.0E25 kt1004 mbTropical depression
Jul 22, 00:0020.6N 120.5E30 kt1000 mbTropical depression
Jul 22, 06:0021.1N 119.0E35 kt996 mbTropical storm
Jul 22, 12:0021.5N 117.6E35 kt996 mbTropical storm
Jul 22, 18:0021.8N 116.2E35 kt996 mbTropical storm
Jul 23, 00:0022.3N 114.8E30 kt1000 mbTropical depression
Jul 23, 06:0022.8N 113.7E20 kt1007 mbDisturbance
Jul 23, 12:0022.8N 110.8E1004 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.