The 1931 season

Unnamed tropical storm (1931)

Unnamed tropical storm peaked at 60 kt in the North Atlantic between July 11, 1931 and July 17, 1931, with a lowest pressure of 1000 mb, and made landfall.

Radar

Reflectivity now over Unnamed tropical storm. 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
July 11, 1931 to July 17, 1931
Peak strength
Tropical Storm, 60 kt (69 mph)
Lowest pressure
1000 mb (29.53 inHg)
Landfall
Yes
Accumulated cyclone energy
2.5
Identifier
AL021931

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
Jul 11, 06:0015.7N 82.3W30 ktTropical depression
Jul 11, 12:0016.0N 83.0W30 ktTropical depression
Jul 11, 18:0016.5N 84.0W30 ktTropical depression
Jul 12, 00:0017.0N 85.0W30 ktTropical depression
Jul 12, 06:0017.5N 86.0W30 ktTropical depression
Jul 12, 12:0018.0N 87.0W30 ktTropical depression
Jul 12, 18:0018.5N 88.0W30 ktTropical depression
Jul 13, 00:0019.0N 88.8W30 ktTropical depression
Jul 13, 06:0019.5N 89.5W30 ktTropical depression
Jul 13, 12:0020.0N 90.0W35 ktTropical storm
Jul 13, 18:0020.8N 90.3W40 ktTropical storm
Jul 14, 00:0022.0N 90.4W45 ktTropical storm
Jul 14, 06:0023.5N 90.5W50 ktTropical storm
Jul 14, 12:0024.8N 90.6W55 ktTropical storm
Jul 14, 18:0026.0N 90.7W60 ktTropical storm
Jul 15, 00:0027.2N 90.8W60 ktTropical storm
Jul 15, 06:0028.4N 90.9W55 ktTropical storm
Jul 15, 10:00 landfall29.2N 91.0W50 ktTropical storm
Jul 15, 12:0029.6N 91.1W45 kt1000 mbTropical storm
Jul 15, 18:0030.4N 91.3W40 ktTropical storm
Jul 16, 00:0031.0N 91.7W35 ktTropical storm
Jul 16, 06:0031.6N 92.3W30 ktTropical depression
Jul 16, 12:0032.2N 93.0W25 ktTropical depression
Jul 16, 18:0033.1N 93.8W25 ktTropical depression
Jul 17, 00:0034.2N 94.7W25 ktTropical depression
Jul 17, 06:0035.3N 95.7W20 ktTropical depression

Other North Atlantic storms of 1931

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.