Unnamed hurricane (1947)
Unnamed hurricane reached Category 3 in the North Atlantic between October 17, 1947 and October 22, 1947, with a lowest pressure of 961 mb.
Radar
Reflectivity now over Unnamed hurricane. Open it to see storms, cones and warnings on the map.
Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.
The storm
- Basin
- North Atlantic
- Dates
- October 17, 1947 to October 22, 1947
- Peak strength
- Category 3, 105 kt (121 mph)
- Lowest pressure
- 961 mb (28.38 inHg)
- Landfall
- No; closest approach 145 km (90 mi)
- Accumulated cyclone energy
- 14.3
- Identifier
- AL101947
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) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Oct 17, 00:00 | 19.0N 63.2W | 35 kt | Tropical storm | |
| Oct 17, 06:00 | 19.5N 64.7W | 40 kt | Tropical storm | |
| Oct 17, 12:00 | 20.0N 66.2W | 45 kt | 1000 mb | Tropical storm |
| Oct 17, 18:00 | 20.7N 67.5W | 50 kt | Tropical storm | |
| Oct 18, 00:00 | 21.4N 68.7W | 60 kt | Tropical storm | |
| Oct 18, 06:00 | 22.1N 69.6W | 65 kt | Hurricane | |
| Oct 18, 12:00 | 22.8N 70.2W | 70 kt | 990 mb | Hurricane |
| Oct 18, 18:00 | 23.7N 70.4W | 80 kt | 981 mb | Hurricane |
| Oct 19, 00:00 | 24.7N 70.5W | 85 kt | Hurricane | |
| Oct 19, 06:00 | 25.9N 70.2W | 90 kt | Hurricane | |
| Oct 19, 12:00 | 27.3N 69.9W | 100 kt | Hurricane | |
| Oct 19, 18:00 | 28.6N 69.2W | 105 kt | Hurricane | |
| Oct 20, 00:00 | 29.9N 68.1W | 105 kt | Hurricane | |
| Oct 20, 06:00 | 31.3N 66.9W | 105 kt | Hurricane | |
| Oct 20, 12:00 | 32.7N 65.7W | 100 kt | Hurricane | |
| Oct 20, 18:00 | 33.7N 65.1W | 100 kt | 961 mb | Hurricane |
| Oct 21, 00:00 | 34.8N 64.0W | 95 kt | Hurricane | |
| Oct 21, 06:00 | 36.1N 61.4W | 90 kt | Hurricane | |
| Oct 21, 12:00 | 37.5N 59.0W | 85 kt | Hurricane | |
| Oct 21, 18:00 | 38.4N 56.6W | 85 kt | Hurricane | |
| Oct 22, 00:00 | 39.0N 52.0W | 80 kt | Hurricane | |
| Oct 22, 06:00 | 39.5N 47.0W | 65 kt | Extratropical |
Other North Atlantic storms of 1947
- Unnamed tropical stormNorth Atlantic · 1947
- Unnamed hurricaneNorth Atlantic · 1947
- Unnamed hurricaneNorth Atlantic · 1947
- Unnamed hurricaneNorth Atlantic · 1947
- Unnamed tropical stormNorth Atlantic · 1947
- Unnamed tropical stormNorth Atlantic · 1947
- Unnamed tropical stormNorth Atlantic · 1947
- Unnamed tropical stormNorth Atlantic · 1947
- Unnamed hurricaneNorth Atlantic · 1947
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.