The 2012 season

Tropical Storm John (2012)

Tropical Storm John peaked at 40 kt in the Eastern Pacific between September 2, 2012 and September 7, 2012, with a lowest pressure of 1000 mb.

Track and intensity

The whole track of Tropical Storm John, colored by strength, with the other storms of the 2012 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 2, 2012 to September 7, 2012
Peak strength
Tropical Storm, 40 kt (46 mph)
Lowest pressure
1000 mb (29.53 inHg)
Landfall
No; closest approach 345 km (214 mi)
Accumulated cyclone energy
0.8
Tropical-storm-force wind reached
160 nmi (296 km, 184 mi) from the center at its widest
Eyewall radius at its peak
60 nmi (111 km, 69 mi)
Overall size
300 nmi (556 km, 345 mi) to the outermost closed isobar
Peak gust in the best track
45 kt (52 mph)
Fastest the center moved
14 kt (16 mph)
Identifier
EP102012

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Sep 2, 12:0017.5N 107.6W35 kt1004 mbTropical storm
Sep 2, 18:0018.0N 108.9W40 kt1001 mbTropical storm
Sep 3, 00:0018.7N 110.1W40 kt1000 mbTropical storm
Sep 3, 06:0019.3N 111.2W35 kt1001 mbTropical storm
Sep 3, 12:0020.0N 112.3W35 kt1003 mbTropical storm
Sep 3, 18:0020.8N 113.4W35 kt1003 mbTropical storm
Sep 4, 00:0021.4N 114.2W30 kt1004 mbTropical depression
Sep 4, 06:0022.2N 115.1W30 kt1004 mbTropical depression
Sep 4, 12:0023.1N 116.1W30 kt1005 mbLow
Sep 4, 18:0024.0N 117.3W30 kt1006 mbLow
Sep 5, 00:0024.5N 118.6W30 kt1006 mbLow
Sep 5, 06:0024.8N 119.5W25 kt1006 mbLow
Sep 5, 12:0025.2N 120.2W20 kt1007 mbLow
Sep 5, 18:0025.6N 120.7W20 kt1007 mbLow
Sep 6, 00:0026.0N 121.1W20 kt1007 mbLow
Sep 6, 06:0026.2N 121.4W20 kt1007 mbLow
Sep 6, 12:0026.4N 121.8W15 kt1008 mbLow
Sep 6, 18:0026.5N 122.0W15 kt1008 mbLow
Sep 7, 00:0026.6N 122.1W15 kt1008 mbLow
Sep 7, 06:0026.7N 122.2W15 kt1008 mbLow

Other Eastern Pacific storms of 2012

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.