The 1915 season

Unnamed hurricane (1915)

Unnamed hurricane reached Category 4 in the North Atlantic between September 21, 1915 and October 1, 1915, with a lowest pressure of 931 mb, and made landfall.

Track and intensity

The whole track of Unnamed hurricane, colored by strength, with the other storms of the 1915 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 21, 1915 to October 1, 1915
Peak strength
Category 4, 125 kt (144 mph)
Lowest pressure
931 mb (27.49 inHg)
Landfall
Yes
Accumulated cyclone energy
37.7
Fastest the center moved
29 kt (33 mph)
Identifier
AL061915

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
Sep 29, 18:00Grand Isle, LA, 40 km away29.0N 90.3W110 kt (127 mph)944 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
Sep 21, 12:0012.3N 61.0W35 ktTropical storm
Sep 21, 18:0012.8N 61.5W40 ktTropical storm
Sep 22, 00:0013.2N 62.1W45 ktTropical storm
Sep 22, 06:0013.5N 62.8W50 ktTropical storm
Sep 22, 12:0013.8N 63.6W55 ktTropical storm
Sep 22, 18:0014.0N 64.6W60 ktTropical storm
Sep 23, 00:0014.1N 65.8W65 ktHurricane
Sep 23, 06:0014.2N 66.9W70 ktHurricane
Sep 23, 12:0014.3N 68.0W75 ktHurricane
Sep 23, 18:0014.3N 69.0W75 ktHurricane
Sep 24, 00:0014.4N 70.0W80 ktHurricane
Sep 24, 06:0014.5N 71.0W85 ktHurricane
Sep 24, 12:0014.5N 72.0W95 ktHurricane
Sep 24, 18:0014.6N 73.1W105 ktHurricane
Sep 25, 00:0014.8N 74.2W115 ktHurricane
Sep 25, 06:0015.0N 75.3W120 ktHurricane
Sep 25, 12:0015.3N 76.5W125 ktHurricane
Sep 25, 18:0015.6N 77.7W125 kt931 mbHurricane
Sep 26, 00:0015.9N 78.8W125 ktHurricane
Sep 26, 06:0016.2N 79.9W125 ktHurricane
Sep 26, 12:0016.6N 81.0W125 ktHurricane
Sep 26, 18:0017.3N 81.9W125 ktHurricane
Sep 27, 00:0018.4N 82.8W125 ktHurricane
Sep 27, 06:0019.6N 83.7W125 ktHurricane
Sep 27, 12:0020.7N 84.6W125 ktHurricane
Sep 27, 18:0021.5N 85.3W125 ktHurricane
Sep 28, 00:0022.3N 85.9W125 ktHurricane
Sep 28, 06:0023.1N 86.6W125 ktHurricane
Sep 28, 12:0023.8N 87.2W125 ktHurricane
Sep 28, 18:0024.7N 87.8W125 ktHurricane
Sep 29, 00:0025.7N 88.5W120 ktHurricane
Sep 29, 06:0026.8N 89.2W120 kt935 mbHurricane
Sep 29, 12:0027.9N 89.8W115 kt940 mbHurricane
Sep 29, 18:00 landfall29.0N 90.3W110 kt944 mbHurricane
Sep 30, 00:0030.1N 90.2W70 kt949 mbHurricane
Sep 30, 06:0031.2N 90.0W60 ktTropical storm
Sep 30, 12:0032.3N 89.3W50 ktExtratropical
Sep 30, 18:0033.6N 88.4W40 ktExtratropical
Oct 1, 00:0035.0N 86.8W35 ktExtratropical
Oct 1, 06:0036.5N 84.8W35 ktExtratropical
Oct 1, 12:0038.2N 82.4W35 ktExtratropical
Oct 1, 18:0040.2N 79.8W35 ktExtratropical

Other North Atlantic storms of 1915

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.