The 2009 season

Tropical Storm Lana (2009)

Tropical Storm Lana peaked at 55 kt in the Eastern Pacific between July 28, 2009 and August 3, 2009, with a lowest pressure of 995 mb.

Track and intensity

The whole track of Tropical Storm Lana, 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
July 28, 2009 to August 3, 2009
Peak strength
Tropical Storm, 55 kt (63 mph)
Lowest pressure
995 mb (29.38 inHg)
Landfall
No; closest approach 492 km (306 mi)
Accumulated cyclone energy
2.4
Tropical-storm-force wind reached
75 nmi (139 km, 86 mi) from the center at its widest
Eyewall radius at its peak
15 nmi (28 km, 17 mi)
Overall size
150 nmi (278 km, 173 mi) to the outermost closed isobar
Peak gust in the best track
65 kt (75 mph)
Fastest the center moved
17 kt (20 mph)
Identifier
EP062009

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Jul 28, 18:0010.8N 128.8W25 kt1009 mbDisturbance
Jul 29, 00:0010.9N 130.0W25 kt1009 mbDisturbance
Jul 29, 06:0011.0N 131.2W25 kt1009 mbDisturbance
Jul 29, 12:0011.0N 132.5W25 kt1009 mbDisturbance
Jul 29, 18:0011.1N 134.0W25 kt1009 mbDisturbance
Jul 30, 00:0011.3N 135.6W25 kt1009 mbDisturbance
Jul 30, 06:0011.6N 137.3W25 kt1009 mbDisturbance
Jul 30, 12:0012.0N 139.1W30 kt1008 mbTropical depression
Jul 30, 18:0012.1N 140.6W35 kt1005 mbTropical storm
Jul 31, 00:0012.6N 142.3W45 kt1000 mbTropical storm
Jul 31, 06:0013.0N 143.9W50 kt997 mbTropical storm
Jul 31, 12:0013.4N 145.5W50 kt997 mbTropical storm
Jul 31, 18:0013.8N 146.9W55 kt995 mbTropical storm
Aug 1, 00:0014.0N 148.4W50 kt997 mbTropical storm
Aug 1, 06:0014.2N 149.8W45 kt999 mbTropical storm
Aug 1, 12:0014.4N 151.2W45 kt1000 mbTropical storm
Aug 1, 18:0014.4N 152.6W45 kt1000 mbTropical storm
Aug 2, 00:0014.5N 154.2W40 kt1002 mbTropical storm
Aug 2, 06:0014.5N 155.9W40 kt1003 mbTropical storm
Aug 2, 12:0014.4N 157.4W35 kt1004 mbTropical storm
Aug 2, 18:0014.4N 158.9W30 kt1006 mbTropical depression
Aug 3, 00:0014.4N 160.3W25 kt1008 mbLow
Aug 3, 06:0014.4N 161.7W20 kt1010 mbLow
Aug 3, 12:0014.8N 162.9W25 kt1010 mbTropical depression

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.