The 2009 season

Unnamed tropical depression (2009)

Unnamed tropical depression peaked at 30 kt in the Eastern Pacific between August 26, 2009 and September 2, 2009, with a lowest pressure of 1007 mb.

Track and intensity

The whole track of Unnamed tropical depression, 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.

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The storm

Basin
Eastern Pacific
Dates
August 26, 2009 to September 2, 2009
Peak strength
Tropical Depression, 30 kt (35 mph)
Lowest pressure
1007 mb (29.74 inHg)
Landfall
No; closest approach 1633 km (1015 mi)
Accumulated cyclone energy
0.0
Eyewall radius at its peak
75 nmi (139 km, 86 mi)
Overall size
200 nmi (370 km, 230 mi) to the outermost closed isobar
Peak gust in the best track
40 kt (46 mph)
Fastest the center moved
16 kt (18 mph)
Identifier
CP022009

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Aug 26, 06:0011.9N 170.9W20 kt1009 mbDisturbance
Aug 26, 12:0012.2N 171.5W20 kt1009 mbDisturbance
Aug 26, 18:0012.6N 172.1W20 kt1009 mbDisturbance
Aug 27, 00:0012.8N 172.6W20 kt1009 mbDisturbance
Aug 27, 06:0013.1N 173.0W20 kt1009 mbDisturbance
Aug 27, 12:0013.5N 173.4W20 kt1009 mbDisturbance
Aug 27, 18:0014.0N 173.6W20 kt1009 mbDisturbance
Aug 28, 00:0014.4N 174.5W25 kt1009 mbDisturbance
Aug 28, 06:0014.5N 175.5W25 kt1008 mbDisturbance
Aug 28, 12:0014.5N 176.3W30 kt1007 mbTropical depression
Aug 28, 18:0014.5N 177.0W30 kt1007 mbTropical depression
Aug 29, 00:0014.5N 177.6W30 kt1007 mbTropical depression
Aug 29, 06:0014.5N 178.3W30 kt1007 mbTropical depression
Aug 29, 12:0014.6N 179.0W30 kt1007 mbTropical depression
Aug 29, 18:0014.6N 179.6W30 kt1007 mbTropical depression
Aug 30, 00:0014.7N 179.1E30 kt1007 mbTropical depression
Aug 30, 06:0015.3N 177.5E25 kt1007 mbTropical depression
Aug 30, 12:0015.6N 175.9E25 kt1007 mbTropical depression
Aug 30, 18:0015.3N 174.5E20 kt1007 mbDisturbance
Aug 31, 00:0015.4N 173.3E20 kt1007 mbDisturbance
Aug 31, 06:0015.8N 172.1E20 kt1007 mbDisturbance
Aug 31, 12:0016.0N 170.9E20 kt1007 mbDisturbance
Aug 31, 18:0016.2N 169.8E20 kt1007 mbDisturbance
Sep 1, 00:0016.2N 168.9E20 kt1007 mbDisturbance
Sep 1, 06:0016.3N 168.1E20 kt1007 mbDisturbance
Sep 1, 12:0016.4N 167.2E20 kt1007 mbDisturbance
Sep 1, 18:0016.8N 166.2E15 kt1007 mbDisturbance
Sep 2, 00:0016.9N 165.6E15 kt1007 mbDisturbance

Other Eastern 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.

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