The 1863 season

Unnamed tropical storm (1863)

Unnamed tropical storm peaked at 60 kt in the North Atlantic between September 11, 1863 and September 20, 1863, and made landfall.

Track and intensity

The whole track of Unnamed tropical storm, colored by strength, with the other storms of the 1863 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
September 11, 1863 to September 20, 1863
Peak strength
Tropical Storm, 60 kt (69 mph)
Landfall
Yes
Accumulated cyclone energy
4.0
Identifier
AL061863

Deaths and damage

No source this site reads publishes a machine-readable casualty or damage figure for a storm of this era. The National Hurricane Center’s season tables begin in 1995 and carry deaths and damage only from 2005 in the Atlantic and 2020 in both basins; the US Storm Events record begins in 1996.

Track

Time (UTC)PositionWindPressureStatus
Sep 11, 12:0014.5N 59.8WTropical storm
Sep 11, 18:0015.3N 60.7WTropical storm
Sep 12, 00:0016.1N 61.6WTropical storm
Sep 12, 06:0016.9N 62.5WTropical storm
Sep 12, 12:0017.7N 63.5WTropical storm
Sep 12, 18:0018.3N 64.8WTropical storm
Sep 13, 00:0018.8N 66.1WTropical storm
Sep 13, 06:0019.3N 67.4WTropical storm
Sep 13, 12:0019.8N 68.7WTropical storm
Sep 13, 18:0020.4N 70.0WTropical storm
Sep 14, 00:0020.9N 71.3WTropical storm
Sep 14, 06:0021.5N 72.6WTropical storm
Sep 14, 12:0022.0N 73.8WTropical storm
Sep 14, 18:0022.5N 74.7WTropical storm
Sep 15, 00:0023.0N 75.6WTropical storm
Sep 15, 06:0023.5N 76.5WTropical storm
Sep 15, 12:0024.0N 77.5WTropical storm
Sep 15, 18:0024.8N 78.0WTropical storm
Sep 16, 00:0024.7N 79.9W40 ktTropical storm
Sep 16, 06:0025.2N 79.9W40 ktTropical storm
Sep 16, 12:0025.7N 79.8W50 ktTropical storm
Sep 16, 18:0026.3N 79.6W50 ktTropical storm
Sep 17, 00:0027.0N 79.4W60 ktTropical storm
Sep 17, 06:0027.8N 79.3W60 ktTropical storm
Sep 17, 12:0028.8N 79.1W60 ktTropical storm
Sep 17, 18:0030.1N 78.9W60 ktTropical storm
Sep 18, 00:0031.5N 78.6W60 ktTropical storm
Sep 18, 06:0032.9N 78.0W60 ktTropical storm
Sep 18, 12:0034.3N 77.3W60 ktTropical storm
Sep 18, 13:00 landfall34.6N 77.1W60 ktTropical storm
Sep 18, 18:0036.0N 76.5W50 ktTropical storm
Sep 19, 00:0038.5N 75.6W50 ktTropical storm
Sep 19, 06:0042.0N 73.5W40 ktTropical storm
Sep 19, 12:0043.7N 72.2WExtratropical
Sep 19, 18:0045.7N 69.5WExtratropical
Sep 20, 00:0048.0N 65.2WExtratropical

Other North Atlantic storms of 1863

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.