The 2017 season

Tropical Storm Nalgae (2017)

Tropical Storm Nalgae peaked at 60 kt in the Western Pacific between July 31, 2017 and August 9, 2017, with a lowest pressure of 978 mb.

Radar

Reflectivity now over Tropical Storm Nalgae. 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 31, 2017 to August 9, 2017
Peak strength
Tropical Storm, 60 kt (69 mph)
Lowest pressure
978 mb (28.88 inHg)
Landfall
No; closest approach 117 km (73 mi)
Accumulated cyclone energy
2.3
Identifier
WP132017

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Jul 31, 06:0026.6N 157.8E1006 mbTropical storm
Jul 31, 12:0027.1N 159.6E1006 mbTropical storm
Jul 31, 18:0026.8N 161.2E20 kt1003 mbDisturbance
Aug 1, 00:0026.5N 162.4E25 kt1003 mbTropical depression
Aug 1, 06:0026.1N 163.1E25 kt1004 mbTropical depression
Aug 1, 12:0025.6N 163.9E30 kt1000 mbTropical depression
Aug 1, 18:0025.3N 164.6E30 kt998 mbTropical depression
Aug 2, 00:0025.4N 165.3E30 kt998 mbTropical depression
Aug 2, 06:0025.6N 165.4E30 kt998 mbTropical depression
Aug 2, 12:0025.9N 165.4E35 kt998 mbTropical storm
Aug 2, 18:0026.2N 165.2E35 kt997 mbTropical storm
Aug 3, 00:0026.6N 164.7E35 kt997 mbTropical storm
Aug 3, 06:0027.2N 164.1E40 kt993 mbTropical storm
Aug 3, 12:0027.5N 163.6E40 kt992 mbTropical storm
Aug 3, 18:0027.8N 163.1E45 kt989 mbTropical storm
Aug 4, 00:0028.3N 162.8E45 kt989 mbTropical storm
Aug 4, 06:0028.9N 162.8E45 kt989 mbTropical storm
Aug 4, 12:0029.8N 162.5E45 kt989 mbTropical storm
Aug 4, 18:0030.8N 162.3E45 kt989 mbTropical storm
Aug 5, 00:0032.5N 162.2E50 kt985 mbTropical storm
Aug 5, 06:0034.2N 162.0E55 kt982 mbTropical storm
Aug 5, 12:0036.1N 161.1E60 kt978 mbSubtropical storm
Aug 5, 18:0038.0N 160.2E60 kt978 mbSubtropical storm
Aug 6, 00:0039.9N 159.2E55 kt982 mbSubtropical storm
Aug 6, 06:0041.7N 158.5E45 kt989 mbSubtropical storm
Aug 6, 12:0044.0N 156.9E35 kt996 mbSubtropical storm
Aug 6, 18:0044.5N 156.1E994 mbExtratropical
Aug 7, 00:0045.3N 155.3E994 mbExtratropical
Aug 7, 06:0045.7N 154.8E996 mbExtratropical
Aug 7, 12:0045.9N 154.6E998 mbExtratropical
Aug 7, 18:0046.2N 154.6E998 mbExtratropical
Aug 8, 00:0046.6N 154.6E998 mbExtratropical
Aug 8, 06:0046.5N 154.2E1000 mbExtratropical
Aug 8, 12:0046.4N 153.9E1000 mbExtratropical
Aug 8, 18:0046.0N 154.6E1000 mbExtratropical
Aug 9, 00:0045.6N 153.0E1002 mbExtratropical
Aug 9, 06:0045.2N 151.3E1002 mbExtratropical

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.