The 1909 season

Unnamed hurricane (1909)

Unnamed hurricane reached Category 3 in the North Atlantic between September 13, 1909 and September 22, 1909, with a lowest pressure of 952 mb, and made landfall.

Radar

Reflectivity now over Unnamed hurricane. Open it to see storms, cones and warnings on the map.

Open the live radar with storms, cones and warnings

Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.

The storm

Basin
North Atlantic
Dates
September 13, 1909 to September 22, 1909
Peak strength
Category 3, 105 kt (121 mph)
Lowest pressure
952 mb (28.11 inHg)
Landfall
Yes
Accumulated cyclone energy
17.8
Fastest the center moved
20 kt (23 mph)
Identifier
AL091909

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 21, 00:00Bayou Vista, LA, 21 km away29.5N 91.3W100 kt (115 mph)952 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 13, 12:0017.5N 71.0W30 ktTropical depression
Sep 13, 18:0017.8N 72.5W30 ktTropical depression
Sep 14, 00:0018.1N 73.9W30 ktTropical depression
Sep 14, 06:0018.3N 75.2W30 ktTropical depression
Sep 14, 12:0018.5N 76.5W30 ktTropical depression
Sep 14, 18:0018.7N 77.5W30 ktTropical depression
Sep 15, 00:0018.9N 78.4W35 ktTropical storm
Sep 15, 06:0019.1N 79.3W40 ktTropical storm
Sep 15, 12:0019.3N 80.0W45 ktTropical storm
Sep 15, 18:0019.5N 80.6W50 ktTropical storm
Sep 16, 00:0019.6N 81.0W55 ktTropical storm
Sep 16, 06:0019.9N 81.5W60 ktTropical storm
Sep 16, 12:0020.3N 82.0W65 ktHurricane
Sep 16, 18:0020.6N 82.4W70 ktHurricane
Sep 17, 00:0020.9N 82.9W70 ktHurricane
Sep 17, 06:0021.3N 83.3W75 ktHurricane
Sep 17, 12:0021.7N 83.7W80 ktHurricane
Sep 17, 18:0022.0N 84.2W85 kt976 mbHurricane
Sep 18, 00:0022.3N 84.5W75 ktHurricane
Sep 18, 06:0022.6N 84.9W80 ktHurricane
Sep 18, 12:0022.9N 85.4W80 ktHurricane
Sep 18, 18:0023.2N 85.9W85 ktHurricane
Sep 19, 00:0023.5N 86.7W95 ktHurricane
Sep 19, 06:0023.9N 87.4W105 ktHurricane
Sep 19, 12:0024.3N 88.0W105 ktHurricane
Sep 19, 18:0024.8N 88.5W105 ktHurricane
Sep 20, 00:0025.4N 89.0W105 ktHurricane
Sep 20, 06:0026.1N 89.5W105 ktHurricane
Sep 20, 12:0026.9N 90.1W105 ktHurricane
Sep 20, 18:0027.7N 90.7W100 ktHurricane
Sep 21, 00:00 landfall29.5N 91.3W100 kt952 mbHurricane
Sep 21, 06:0031.4N 91.7W75 ktHurricane
Sep 21, 12:0033.2N 91.5W55 ktTropical storm
Sep 21, 18:0035.0N 91.3W40 ktTropical storm
Sep 22, 00:0036.8N 91.1W30 ktTropical depression

Other North Atlantic storms of 1909

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.