The 2009 season

Tropical Storm Nepartak (2009)

Tropical Storm Nepartak peaked at 55 kt in the Western Pacific between October 8, 2009 and October 15, 2009, with a lowest pressure of 982 mb.

Track and intensity

The whole track of Tropical Storm Nepartak, colored by strength, with the other storms of the 2009 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.

Open the live map with storms, cones and warnings

The storm

Basin
Western Pacific
Dates
October 8, 2009 to October 15, 2009
Peak strength
Tropical Storm, 55 kt (63 mph)
Lowest pressure
982 mb (29.00 inHg)
Landfall
No; closest approach 1166 km (725 mi)
Accumulated cyclone energy
2.7
Identifier
WP212009

Radar at PGUA as it neared land, Oct 8, 00:00 UTC

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Oct 8, 00:0015.6N 143.2E20 kt1007 mbDisturbance
Oct 8, 06:0016.2N 143.3E20 kt1007 mbDisturbance
Oct 8, 12:0016.8N 143.5E25 kt1004 mbTropical depression
Oct 8, 18:0017.7N 143.1E25 kt1004 mbTropical depression
Oct 9, 00:0018.6N 142.7E30 kt1000 mbTropical depression
Oct 9, 06:0019.6N 142.5E30 kt1000 mbTropical depression
Oct 9, 12:0020.4N 142.2E30 kt1000 mbTropical depression
Oct 9, 18:0020.9N 141.9E30 kt1000 mbTropical depression
Oct 10, 00:0021.3N 141.8E30 kt1000 mbTropical depression
Oct 10, 06:0021.6N 141.8E35 kt996 mbTropical storm
Oct 10, 12:0021.9N 141.8E40 kt993 mbTropical storm
Oct 10, 18:0022.1N 142.0E45 kt989 mbTropical storm
Oct 11, 00:0022.3N 142.3E45 kt989 mbTropical storm
Oct 11, 06:0022.5N 142.6E50 kt985 mbTropical storm
Oct 11, 12:0022.8N 143.0E55 kt982 mbTropical storm
Oct 11, 18:0023.2N 143.8E55 kt982 mbTropical storm
Oct 12, 00:0023.8N 144.7E55 kt982 mbTropical storm
Oct 12, 06:0024.6N 145.7E50 kt985 mbTropical storm
Oct 12, 12:0025.8N 147.1E45 kt989 mbTropical storm
Oct 12, 18:0027.0N 148.5E45 kt989 mbTropical storm
Oct 13, 00:0028.7N 150.7E45 kt989 mbTropical storm
Oct 13, 06:0030.4N 153.1E40 kt993 mbExtratropical
Oct 13, 12:0031.6N 155.6E40 kt993 mbExtratropical
Oct 13, 18:0032.9N 157.9E40 kt993 mbExtratropical
Oct 14, 00:0034.0N 160.0E998 mbExtratropical
Oct 14, 06:0035.4N 163.1E1000 mbExtratropical
Oct 14, 12:0036.4N 166.1E1000 mbExtratropical
Oct 14, 18:0037.5N 169.2E1000 mbExtratropical
Oct 15, 00:0038.5N 172.2E1000 mbExtratropical
Oct 15, 06:0039.2N 175.2E998 mbExtratropical
Oct 15, 12:0040.0N 178.1E998 mbExtratropical
Oct 15, 18:0041.1N 180.7EExtratropical

Other Western Pacific storms of 2009

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.