Tropical Storm Sean (2023)

Tropical Storm Sean peaked at 40 kt in the North Atlantic between October 10, 2023 and October 16, 2023, with a lowest pressure of 1005 mb.

Track and intensity

The whole track of Tropical Storm Sean, colored by strength, with the other storms of the 2023 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: North Atlantic
Dates: October 10, 2023 to October 16, 2023
Peak strength: Tropical Storm, 40 kt (46 mph)
Lowest pressure: 1005 mb (29.68 inHg)
Landfall: No; closest approach 1280 km (795 mi)
Accumulated cyclone energy: 1.3
Tropical-storm-force wind reached: 80 nmi (148 km, 92 mi) from the center at its widest
Eyewall radius at its peak: 40 nmi (74 km, 46 mi)
Overall size: 240 nmi (444 km, 276 mi) to the outermost closed isobar
Peak gust in the best track: 50 kt (58 mph)
Fastest the center moved: 12 kt (14 mph)
Identifier: AL192023

Deaths and damage

The sources count different things and are not added together.

National Hurricane Center

0 direct deathsnone recorded in the United States

The season table in NHC’s report archive, final report. Direct deaths are those caused by the storm’s own wind, water or surge, anywhere in the world.

Track

Time (UTC)	Position	Wind	Pressure	Status
Oct 10, 18:00	9.6N 30.2W	30 kt	1007 mb	Tropical depression
Oct 11, 00:00	9.8N 31.4W	35 kt	1006 mb	Tropical storm
Oct 11, 06:00	10.1N 32.6W	35 kt	1006 mb	Tropical storm
Oct 11, 12:00	10.7N 33.7W	35 kt	1006 mb	Tropical storm
Oct 11, 18:00	11.3N 34.7W	30 kt	1007 mb	Tropical depression
Oct 12, 00:00	11.8N 35.6W	30 kt	1007 mb	Tropical depression
Oct 12, 06:00	12.3N 36.4W	30 kt	1007 mb	Tropical depression
Oct 12, 12:00	12.8N 37.1W	35 kt	1006 mb	Tropical storm
Oct 12, 18:00	13.3N 37.8W	40 kt	1005 mb	Tropical storm
Oct 13, 00:00	13.7N 39.0W	40 kt	1005 mb	Tropical storm
Oct 13, 06:00	14.0N 40.1W	40 kt	1005 mb	Tropical storm
Oct 13, 12:00	14.3N 41.2W	35 kt	1006 mb	Tropical storm
Oct 13, 18:00	14.6N 42.2W	35 kt	1006 mb	Tropical storm
Oct 14, 00:00	14.9N 42.7W	35 kt	1006 mb	Tropical storm
Oct 14, 06:00	15.3N 43.3W	30 kt	1007 mb	Tropical depression
Oct 14, 12:00	15.8N 43.9W	30 kt	1007 mb	Tropical depression
Oct 14, 18:00	16.3N 44.5W	30 kt	1007 mb	Tropical depression
Oct 15, 00:00	16.8N 45.1W	30 kt	1008 mb	Tropical depression
Oct 15, 06:00	17.3N 45.8W	30 kt	1009 mb	Tropical depression
Oct 15, 12:00	17.6N 46.6W	25 kt	1010 mb	Low
Oct 15, 18:00	17.9N 47.6W	25 kt	1010 mb	Low
Oct 16, 00:00	18.1N 48.6W	25 kt	1011 mb	Low
Oct 16, 06:00	18.2N 49.8W	25 kt	1011 mb	Low
Oct 16, 12:00	18.3N 51.0W	20 kt	1011 mb	Low
Oct 16, 18:00	18.4N 52.2W	20 kt	1011 mb	Low

Other North Atlantic storms of 2023

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.