The 2001 season

Typhoon Krosa (2001)

Typhoon Krosa reached Category 3 in the Western Pacific between October 3, 2001 and October 10, 2001, with a lowest pressure of 938 mb.

Radar

Reflectivity now over Typhoon Krosa. 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
October 3, 2001 to October 10, 2001
Peak strength
Category 3, 105 kt (121 mph)
Lowest pressure
938 mb (27.70 inHg)
Landfall
No; closest approach 614 km (382 mi)
Accumulated cyclone energy
14.7
Identifier
WP242001

Radar at PGUA as it neared land, Oct 3, 12:00 UTC

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Oct 3, 06:0013.4N 146.4E25 kt1004 mbTropical depression
Oct 3, 12:0013.9N 145.4E25 kt1002 mbTropical depression
Oct 3, 18:0014.4N 144.6E30 kt1000 mbTropical depression
Oct 4, 00:0015.1N 144.0E35 kt997 mbTropical storm
Oct 4, 06:0015.8N 142.7E40 kt994 mbTropical storm
Oct 4, 12:0016.6N 141.5E50 kt987 mbTropical storm
Oct 4, 18:0017.5N 140.2E60 kt980 mbTropical storm
Oct 5, 00:0017.9N 139.4E65 kt976 mbTyphoon
Oct 5, 06:0018.8N 138.2E75 kt967 mbTyphoon
Oct 5, 12:0019.6N 137.2E105 kt938 mbTyphoon
Oct 5, 18:0020.7N 136.4E105 kt938 mbTyphoon
Oct 6, 00:0021.4N 135.8E100 kt944 mbTyphoon
Oct 6, 06:0022.4N 135.1E100 kt944 mbTyphoon
Oct 6, 12:0023.3N 135.3E100 kt944 mbTyphoon
Oct 6, 18:0024.0N 135.5E100 kt944 mbTyphoon
Oct 7, 00:0025.0N 135.8E95 kt949 mbTyphoon
Oct 7, 06:0025.5N 136.7E90 kt954 mbTyphoon
Oct 7, 12:0026.2N 137.7E90 kt954 mbTyphoon
Oct 7, 18:0027.0N 138.5E90 kt954 mbTyphoon
Oct 8, 00:0028.0N 139.6E85 kt958 mbTyphoon
Oct 8, 06:0028.9N 140.7E75 kt967 mbTyphoon
Oct 8, 12:0029.7N 142.5E75 kt967 mbTyphoon
Oct 8, 18:0031.0N 145.0E75 kt967 mbTyphoon
Oct 9, 00:0032.7N 147.6E75 kt967 mbTyphoon
Oct 9, 06:0034.3N 151.2E55 kt984 mbTropical storm
Oct 9, 12:0035.5N 156.5E992 mbExtratropical
Oct 9, 18:0037.0N 162.1E992 mbExtratropical
Oct 10, 00:0038.1N 169.1E992 mbExtratropical
Oct 10, 06:0041.0N 174.9E982 mbExtratropical
Oct 10, 12:0043.0N 178.9E972 mbExtratropical
Oct 10, 18:0044.4N 182.2EExtratropical

Other Western Pacific storms of 2001

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.