The 2009 season

Tropical Storm Patricia (2009)

Tropical Storm Patricia peaked at 50 kt in the Eastern Pacific between October 8, 2009 and October 15, 2009, with a lowest pressure of 996 mb.

Track and intensity

The whole track of Tropical Storm Patricia, 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
October 8, 2009 to October 15, 2009
Peak strength
Tropical Storm, 50 kt (58 mph)
Lowest pressure
996 mb (29.41 inHg)
Landfall
No; closest approach 22 km (14 mi)
Accumulated cyclone energy
1.8
Tropical-storm-force wind reached
90 nmi (167 km, 104 mi) from the center at its widest
Eyewall radius at its peak
40 nmi (74 km, 46 mi)
Overall size
180 nmi (333 km, 207 mi) to the outermost closed isobar
Peak gust in the best track
60 kt (69 mph)
Fastest the center moved
10 kt (12 mph)
Identifier
EP192009

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Oct 8, 12:0016.4N 107.6W20 kt1009 mbDisturbance
Oct 8, 18:0016.7N 107.6W20 kt1009 mbDisturbance
Oct 9, 00:0017.0N 107.4W20 kt1009 mbDisturbance
Oct 9, 06:0017.3N 107.1W20 kt1009 mbDisturbance
Oct 9, 12:0017.5N 106.6W20 kt1009 mbDisturbance
Oct 9, 18:0017.4N 106.0W20 kt1009 mbDisturbance
Oct 10, 00:0016.6N 105.6W25 kt1008 mbDisturbance
Oct 10, 06:0016.1N 106.4W25 kt1008 mbDisturbance
Oct 10, 12:0015.6N 107.3W25 kt1007 mbDisturbance
Oct 10, 18:0015.2N 108.0W25 kt1007 mbDisturbance
Oct 11, 00:0015.4N 108.0W25 kt1007 mbDisturbance
Oct 11, 06:0015.8N 108.1W25 kt1007 mbDisturbance
Oct 11, 12:0016.6N 108.2W25 kt1007 mbDisturbance
Oct 11, 18:0017.1N 108.2W30 kt1005 mbTropical depression
Oct 12, 00:0017.7N 108.7W35 kt1003 mbTropical storm
Oct 12, 06:0018.3N 109.2W40 kt1001 mbTropical storm
Oct 12, 12:0018.8N 109.5W50 kt997 mbTropical storm
Oct 12, 18:0019.3N 109.5W50 kt997 mbTropical storm
Oct 13, 00:0019.8N 109.4W50 kt996 mbTropical storm
Oct 13, 06:0020.4N 109.2W50 kt997 mbTropical storm
Oct 13, 12:0021.1N 109.0W45 kt1000 mbTropical storm
Oct 13, 18:0021.9N 108.9W40 kt1002 mbTropical storm
Oct 14, 00:0022.4N 109.1W35 kt1004 mbTropical storm
Oct 14, 06:0022.6N 109.5W30 kt1006 mbLow
Oct 14, 12:0022.7N 110.2W25 kt1008 mbLow
Oct 14, 18:0022.8N 111.2W25 kt1008 mbLow
Oct 15, 00:0022.7N 111.9W20 kt1009 mbLow
Oct 15, 06:0022.5N 112.5W20 kt1009 mbLow
Oct 15, 12:0022.3N 112.9W20 kt1009 mbLow

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.