Unnamed was a Cat 2 Atlantic tropical cyclone that existed from October 19 to October 22, 1870 (4 days). It reached peak winds of 103 mph (90 kt). The storm made 2 landfalls during its lifetime.
| Time (UTC) | Status | Lat | Lon | Winds (kt) | Pressure (mb) | Record |
|---|---|---|---|---|---|---|
| 1870-10-19 00:00 | HU | 19.50 | -84.10 | 90 | ||
| 1870-10-19 06:00 | HU | 19.90 | -84.00 | 90 | ||
| 1870-10-19 12:00 | HU | 20.40 | -84.00 | 90 | ||
| 1870-10-19 18:00 | HU | 21.10 | -83.90 | 90 | ||
| 1870-10-20 00:00 | HU | 22.00 | -83.70 | 90 | ||
| 1870-10-20 06:00 | HU | 23.10 | -83.50 | 80 | ||
| 1870-10-20 12:00 | HU | 24.30 | -83.10 | 80 | ||
| 1870-10-20 14:00 | HU | 24.70 | -82.80 | 80 | Landfall | |
| 1870-10-20 18:00 | HU | 25.50 | -82.30 | 80 | ||
| 1870-10-20 20:00 | HU | 26.00 | -81.80 | 80 | Landfall | |
| 1870-10-21 00:00 | HU | 26.70 | -81.10 | 70 | ||
| 1870-10-21 06:00 | TS | 27.90 | -79.70 | 60 | ||
| 1870-10-21 12:00 | HU | 29.10 | -78.10 | 70 | ||
| 1870-10-21 18:00 | HU | 30.30 | -76.60 | 70 | ||
| 1870-10-22 00:00 | HU | 31.40 | -75.40 | 70 | ||
| 1870-10-22 06:00 | HU | 32.50 | -74.00 | 70 | ||
| 1870-10-22 12:00 | HU | 33.50 | -72.60 | 70 | ||
| 1870-10-22 18:00 | HU | 34.50 | -71.10 | 70 |
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.