The 2001 season

Tropical Storm Ivo (2001)

Tropical Storm Ivo peaked at 45 kt in the Eastern Pacific between September 10, 2001 and September 15, 2001, with a lowest pressure of 997 mb.

Track and intensity

The whole track of Tropical Storm Ivo, colored by strength, with the other storms of the 2001 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.

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The storm

Basin
Eastern Pacific
Dates
September 10, 2001 to September 15, 2001
Peak strength
Tropical Storm, 45 kt (52 mph)
Lowest pressure
997 mb (29.44 inHg)
Landfall
No; closest approach 170 km (106 mi)
Accumulated cyclone energy
1.9
Tropical-storm-force wind reached
150 nmi (278 km, 173 mi) from the center at its widest
Overall size
200 nmi (370 km, 230 mi) to the outermost closed isobar
Fastest the center moved
18 kt (21 mph)
Identifier
EP102001

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Sep 10, 12:0014.8N 98.9W25 kt1004 mbTropical depression
Sep 10, 18:0014.9N 100.1W25 kt1004 mbTropical depression
Sep 11, 00:0015.2N 101.4W30 kt1002 mbTropical depression
Sep 11, 06:0015.7N 102.7W35 kt1000 mbTropical storm
Sep 11, 12:0016.7N 104.3W35 kt1000 mbTropical storm
Sep 11, 18:0017.3N 105.5W35 kt1000 mbTropical storm
Sep 12, 00:0017.9N 106.7W35 kt999 mbTropical storm
Sep 12, 06:0018.5N 108.0W35 kt999 mbTropical storm
Sep 12, 12:0019.4N 108.8W40 kt999 mbTropical storm
Sep 12, 18:0020.3N 109.6W45 kt997 mbTropical storm
Sep 13, 00:0021.0N 110.3W45 kt998 mbTropical storm
Sep 13, 06:0021.8N 111.2W45 kt998 mbTropical storm
Sep 13, 12:0023.0N 112.5W45 kt998 mbTropical storm
Sep 13, 18:0023.9N 113.8W40 kt1002 mbTropical storm
Sep 14, 00:0024.6N 114.6W35 kt1004 mbTropical storm
Sep 14, 06:0025.0N 115.2W30 kt1004 mbTropical depression
Sep 14, 12:0025.2N 116.2W25 kt1005 mbTropical depression
Sep 14, 18:0025.1N 117.0W25 kt1006 mbTropical depression
Sep 15, 00:0025.1N 117.5W20 kt1007 mbTropical depression

Other Eastern 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.

The National Hurricane Center has published no tropical cyclone report for this storm.