The 2001 season

Typhoon Vipa (2001)

Typhoon Vipa reached Category 1 in the Western Pacific between September 16, 2001 and September 22, 2001, with a lowest pressure of 967 mb.

Radar

Reflectivity now over Typhoon Vipa. 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
September 16, 2001 to September 22, 2001
Peak strength
Category 1, 75 kt (86 mph)
Lowest pressure
967 mb (28.56 inHg)
Landfall
No; closest approach 176 km (109 mi)
Accumulated cyclone energy
6.2
Tropical-storm-force wind reached
115 nmi (213 km, 132 mi) from the center at its widest
Eyewall radius at its peak
15 nmi (28 km, 17 mi)
Overall size
135 nmi (250 km, 155 mi) to the outermost closed isobar
Fastest the center moved
51 kt (59 mph)
Identifier
WP212001

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Sep 16, 00:0020.1N 138.0E25 kt1002 mbTropical depression
Sep 16, 06:0020.6N 138.9E25 kt1002 mbTropical depression
Sep 16, 12:0021.1N 139.6E25 kt1002 mbTropical depression
Sep 16, 18:0022.0N 140.0E25 kt1002 mbTropical depression
Sep 17, 00:0022.4N 140.1E25 kt1002 mbTropical depression
Sep 17, 06:0022.9N 140.1E30 kt1000 mbTropical depression
Sep 17, 12:0023.7N 140.0E30 kt1000 mbTropical depression
Sep 17, 18:0024.3N 139.8E35 kt997 mbTropical storm
Sep 18, 00:0025.1N 139.4E35 kt997 mbTropical storm
Sep 18, 06:0026.4N 138.9E40 kt994 mbTropical storm
Sep 18, 12:0027.5N 138.5E50 kt991 mbTropical storm
Sep 18, 18:0028.9N 138.2E55 kt984 mbTropical storm
Sep 19, 00:0030.0N 138.1E65 kt976 mbTyphoon
Sep 19, 06:0030.9N 138.3E65 kt976 mbTyphoon
Sep 19, 12:0031.8N 138.9E65 kt976 mbTyphoon
Sep 19, 18:0032.6N 139.6E65 kt976 mbTyphoon
Sep 20, 00:0033.4N 140.6E70 kt972 mbTyphoon
Sep 20, 06:0034.2N 142.1E70 kt972 mbTyphoon
Sep 20, 12:0034.9N 143.7E70 kt972 mbTyphoon
Sep 20, 18:0036.1N 145.8E75 kt967 mbTyphoon
Sep 21, 00:0037.7N 148.5E75 kt967 mbTyphoon
Sep 21, 06:0040.1N 152.4E70 kt972 mbTyphoon
Sep 21, 12:0042.6N 157.4E65 kt976 mbTyphoon
Sep 21, 18:0046.8N 160.6E996 mbExtratropical
Sep 22, 00:0049.0N 162.9E996 mbExtratropical
Sep 22, 06:0051.2N 169.3E996 mbExtratropical

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.