The 1856 season

Unnamed hurricane (1856)

Unnamed hurricane reached Category 4 in the North Atlantic between August 7, 1856 and August 14, 1856, with a lowest pressure of 934 mb, and made landfall.

Track and intensity

The whole track of Unnamed hurricane, colored by strength, with the other storms of the 1856 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
August 7, 1856 to August 14, 1856
Peak strength
Category 4, 130 kt (150 mph)
Lowest pressure
934 mb (27.58 inHg)
Landfall
Yes
Accumulated cyclone energy
11.8
Fastest the center moved
12 kt (14 mph)
Identifier
AL011856

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.

Landfall

Time (UTC)WherePositionWindPressure
Aug 10, 18:00Dulac, LA, 43 km away29.2N 91.1W130 kt (150 mph)934 mb

Landfall points the US agencies flagged in the best track. The nearest town is named from the site’s gazetteer, not from the report.

Track

Time (UTC)PositionWindPressureStatus
Aug 7, 12:0025.2N 83.5WTropical storm
Aug 7, 18:0025.5N 84.0WTropical storm
Aug 8, 00:0025.9N 84.5WTropical storm
Aug 8, 06:0026.2N 85.0WTropical storm
Aug 8, 12:0026.5N 85.5WTropical storm
Aug 8, 18:0026.8N 86.1WTropical storm
Aug 9, 00:0025.0N 83.9W70 ktHurricane
Aug 9, 06:0025.7N 85.1W80 ktHurricane
Aug 9, 12:0026.3N 86.5W90 ktHurricane
Aug 9, 18:0027.0N 87.8W100 ktHurricane
Aug 10, 00:0027.7N 89.1W110 ktHurricane
Aug 10, 06:0028.2N 89.8W120 ktHurricane
Aug 10, 12:0028.7N 90.5W130 ktHurricane
Aug 10, 18:00 landfall29.2N 91.1W130 kt934 mbHurricane
Aug 11, 00:0029.7N 91.6W110 ktHurricane
Aug 11, 06:0030.0N 91.8W80 ktHurricane
Aug 11, 12:0030.3N 91.9W60 ktTropical storm
Aug 11, 18:0030.6N 91.8W50 ktTropical storm
Aug 12, 00:0030.9N 91.6W40 ktTropical storm
Aug 12, 06:0031.3N 91.0W40 ktTropical storm
Aug 12, 12:0031.5N 92.7WTropical storm
Aug 12, 18:0031.6N 92.6WTropical storm
Aug 13, 00:0031.7N 92.5WTropical storm
Aug 13, 06:0031.9N 92.4WTropical storm
Aug 13, 12:0032.0N 92.3WTropical storm
Aug 13, 18:0032.1N 91.8WTropical storm
Aug 14, 00:0032.2N 91.3WTropical storm
Aug 14, 06:0032.2N 90.8WTropical storm
Aug 14, 12:0032.3N 90.3WTropical storm

Other North Atlantic storms of 1856

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.