The 2017 season

Tropical Storm Greg (2017)

Tropical Storm Greg peaked at 50 kt in the Eastern Pacific between July 17, 2017 and July 27, 2017, with a lowest pressure of 1000 mb.

Track and intensity

The whole track of Tropical Storm Greg, colored by strength, with the other storms of the 2017 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 17, 2017 to July 27, 2017
Peak strength
Tropical Storm, 50 kt (58 mph)
Lowest pressure
1000 mb (29.53 inHg)
Landfall
No; closest approach 496 km (308 mi)
Accumulated cyclone energy
5.2
Tropical-storm-force wind reached
90 nmi (167 km, 104 mi) from the center at its widest
Eyewall radius at its peak
30 nmi (56 km, 35 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
13 kt (15 mph)
Identifier
EP072017

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Jul 17, 12:0014.1N 105.0W30 kt1008 mbTropical depression
Jul 17, 18:0014.1N 105.7W30 kt1007 mbTropical depression
Jul 18, 00:0014.2N 106.4W30 kt1007 mbTropical depression
Jul 18, 06:0014.4N 107.1W30 kt1007 mbTropical depression
Jul 18, 12:0014.5N 107.9W35 kt1006 mbTropical storm
Jul 18, 18:0014.5N 108.7W35 kt1006 mbTropical storm
Jul 19, 00:0014.4N 109.6W35 kt1006 mbTropical storm
Jul 19, 06:0014.2N 110.5W35 kt1006 mbTropical storm
Jul 19, 12:0014.1N 111.4W40 kt1005 mbTropical storm
Jul 19, 18:0014.0N 112.3W40 kt1005 mbTropical storm
Jul 20, 00:0014.0N 113.3W35 kt1006 mbTropical storm
Jul 20, 06:0014.0N 114.3W35 kt1006 mbTropical storm
Jul 20, 12:0014.0N 115.2W40 kt1005 mbTropical storm
Jul 20, 18:0014.1N 116.1W45 kt1003 mbTropical storm
Jul 21, 00:0014.2N 117.0W50 kt1000 mbTropical storm
Jul 21, 06:0014.3N 117.9W50 kt1000 mbTropical storm
Jul 21, 12:0014.5N 119.0W45 kt1001 mbTropical storm
Jul 21, 18:0014.7N 120.1W45 kt1001 mbTropical storm
Jul 22, 00:0014.9N 121.2W45 kt1001 mbTropical storm
Jul 22, 06:0015.0N 122.3W45 kt1001 mbTropical storm
Jul 22, 12:0015.0N 123.5W45 kt1001 mbTropical storm
Jul 22, 18:0014.9N 124.7W45 kt1001 mbTropical storm
Jul 23, 00:0014.7N 125.9W45 kt1001 mbTropical storm
Jul 23, 06:0014.4N 127.2W45 kt1001 mbTropical storm
Jul 23, 12:0014.3N 128.4W45 kt1001 mbTropical storm
Jul 23, 18:0014.3N 129.6W45 kt1001 mbTropical storm
Jul 24, 00:0014.3N 130.7W45 kt1001 mbTropical storm
Jul 24, 06:0014.3N 131.8W40 kt1003 mbTropical storm
Jul 24, 12:0014.3N 132.8W40 kt1003 mbTropical storm
Jul 24, 18:0014.4N 133.8W40 kt1003 mbTropical storm
Jul 25, 00:0014.6N 134.8W40 kt1003 mbTropical storm
Jul 25, 06:0014.9N 135.8W40 kt1003 mbTropical storm
Jul 25, 12:0015.3N 136.7W35 kt1005 mbTropical storm
Jul 25, 18:0015.9N 137.6W35 kt1005 mbTropical storm
Jul 26, 00:0016.8N 138.3W30 kt1006 mbTropical depression
Jul 26, 06:0017.5N 139.3W30 kt1007 mbTropical depression
Jul 26, 12:0018.0N 140.5W25 kt1008 mbTropical depression
Jul 26, 18:0018.3N 141.6W25 kt1008 mbLow
Jul 27, 00:0018.1N 142.6W25 kt1009 mbLow
Jul 27, 06:0017.7N 143.6W25 kt1009 mbLow

Other Eastern Pacific storms of 2017

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.