The 1924 season

Unnamed tropical storm (1924)

Unnamed tropical storm peaked at 40 kt in the North Atlantic between September 20, 1924 and September 22, 1924, with a lowest pressure of 1005 mb.

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
September 20, 1924 to September 22, 1924
Peak strength
Tropical Storm, 40 kt (46 mph)
Lowest pressure
1005 mb (29.68 inHg)
Landfall
No; closest approach 561 km (349 mi)
Accumulated cyclone energy
1.4
Identifier
AL061924

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 20, 00:0015.8N 22.6W25 ktTropical depression
Sep 20, 06:0015.9N 22.8W30 ktTropical depression
Sep 20, 12:0016.0N 23.0W35 ktTropical storm
Sep 20, 18:0016.1N 23.2W40 ktTropical storm
Sep 21, 00:0016.2N 23.4W40 ktTropical storm
Sep 21, 06:0016.3N 23.7W40 ktTropical storm
Sep 21, 12:0016.5N 24.0W40 ktTropical storm
Sep 21, 18:0016.8N 24.5W40 ktTropical storm
Sep 22, 00:0017.2N 25.2W35 kt1005 mbTropical storm
Sep 22, 06:0017.6N 26.1W35 ktTropical storm
Sep 22, 12:0018.0N 27.0W35 ktTropical storm
Sep 22, 18:0018.5N 28.0W35 ktTropical storm

Other North Atlantic storms of 1924

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.