Unnamed was a TS Atlantic tropical cyclone that existed from July 11 to July 17, 1931 (7 days). It reached peak winds of 69 mph (60 kt) and a minimum central pressure of 1000 mb. The storm made one landfall on July 15 at 29.2°N, 91.0°W.
| Time (UTC) | Status | Lat | Lon | Winds (kt) | Pressure (mb) | Record |
|---|---|---|---|---|---|---|
| 1931-07-11 06:00 | TD | 15.70 | -82.30 | 30 | ||
| 1931-07-11 12:00 | TD | 16.00 | -83.00 | 30 | ||
| 1931-07-11 18:00 | TD | 16.50 | -84.00 | 30 | ||
| 1931-07-12 00:00 | TD | 17.00 | -85.00 | 30 | ||
| 1931-07-12 06:00 | TD | 17.50 | -86.00 | 30 | ||
| 1931-07-12 12:00 | TD | 18.00 | -87.00 | 30 | ||
| 1931-07-12 18:00 | TD | 18.50 | -88.00 | 30 | ||
| 1931-07-13 00:00 | TD | 19.00 | -88.80 | 30 | ||
| 1931-07-13 06:00 | TD | 19.50 | -89.50 | 30 | ||
| 1931-07-13 12:00 | TS | 20.00 | -90.00 | 35 | ||
| 1931-07-13 18:00 | TS | 20.80 | -90.30 | 40 | ||
| 1931-07-14 00:00 | TS | 22.00 | -90.40 | 45 | ||
| 1931-07-14 06:00 | TS | 23.50 | -90.50 | 50 | ||
| 1931-07-14 12:00 | TS | 24.80 | -90.60 | 55 | ||
| 1931-07-14 18:00 | TS | 26.00 | -90.70 | 60 | ||
| 1931-07-15 00:00 | TS | 27.20 | -90.80 | 60 | ||
| 1931-07-15 06:00 | TS | 28.40 | -90.90 | 55 | ||
| 1931-07-15 10:00 | TS | 29.20 | -91.00 | 50 | Landfall | |
| 1931-07-15 12:00 | TS | 29.60 | -91.10 | 45 | 1000 | |
| 1931-07-15 18:00 | TS | 30.40 | -91.30 | 40 | ||
| 1931-07-16 00:00 | TS | 31.00 | -91.70 | 35 | ||
| 1931-07-16 06:00 | TD | 31.60 | -92.30 | 30 | ||
| 1931-07-16 12:00 | TD | 32.20 | -93.00 | 25 | ||
| 1931-07-16 18:00 | TD | 33.10 | -93.80 | 25 | ||
| 1931-07-17 00:00 | TD | 34.20 | -94.70 | 25 | ||
| 1931-07-17 06:00 | TD | 35.30 | -95.70 | 20 |
Source: NOAA National Hurricane Center HURDAT2 best-track database (nhc.noaa.gov/data). Data is in the public domain. Best-track positions and intensities are post-storm reanalysis estimates and may differ from real-time advisories.