Storm Activity: Sep 6, 1921 - Sep 17, 1921
Sep 17 · 18:00 GMT 75 mph -- Category 1
| Sep 17 | 18:00 GMT | 56.5 | -40 | 75 mph | -- | Extratropical | 1 |
| Sep 17 | 15:00 GMT | 54.22 | -41.52 | 75 mph | -- | Extratropical | 1 |
| Sep 17 | 12:00 GMT | 52 | -43 | 80 mph | -- | Extratropical | 1 |
| Sep 17 | 09:00 GMT | 49.92 | -44.53 | 85 mph | -- | Extratropical | 1 |
| Sep 17 | 06:00 GMT | 48 | -46.1 | 85 mph | 959 mb | Extratropical | 1 |
| Sep 17 | 03:00 GMT | 46.2 | -47.64 | 90 mph | 960 mb | Hurricane | 1 |
| Sep 17 | 00:00 GMT | 44.5 | -49.2 | 90 mph | 961 mb | Hurricane | 1 |
| Sep 16 | 21:00 GMT | 42.79 | -50.74 | 95 mph | 962 mb | Hurricane | 1 |
| Sep 16 | 18:00 GMT | 41.2 | -52.3 | 100 mph | 964 mb | Hurricane | 2 |
| Sep 16 | 15:00 GMT | 39.77 | -53.89 | 100 mph | -- | Hurricane | 2 |
| Sep 16 | 12:00 GMT | 38.5 | -55.5 | 105 mph | -- | Hurricane | 2 |
| Sep 16 | 09:00 GMT | 37.33 | -57.15 | 105 mph | -- | Hurricane | 2 |
| Sep 16 | 06:00 GMT | 36.3 | -58.7 | 105 mph | -- | Hurricane | 2 |
| Sep 16 | 03:00 GMT | 35.38 | -60.03 | 105 mph | -- | Hurricane | 2 |
| Sep 16 | 00:00 GMT | 34.6 | -61.2 | 105 mph | -- | Hurricane | 2 |
| Sep 15 | 21:00 GMT | 33.9 | -62.3 | 105 mph | -- | Hurricane | 2 |
| Sep 15 | 18:00 GMT | 33.3 | -63.3 | 110 mph | -- | Hurricane | 2 |
| Sep 15 | 15:00 GMT | 32.75 | -64.24 | 110 mph | -- | Hurricane | 2 |
| Sep 15 | 12:00 GMT | 32.3 | -65.1 | 110 mph | -- | Hurricane | 2 |
| Sep 15 | 09:00 GMT | 31.93 | -65.89 | 110 mph | -- | Hurricane | 3 |
| Sep 15 | 06:00 GMT | 31.6 | -66.6 | 115 mph | -- | Hurricane | 3 |
| Sep 15 | 03:00 GMT | 31.25 | -67.24 | 115 mph | -- | Hurricane | 3 |
| Sep 15 | 00:00 GMT | 30.9 | -67.8 | 115 mph | -- | Hurricane | 3 |
| Sep 14 | 21:00 GMT | 30.55 | -68.3 | 115 mph | -- | Hurricane | 3 |
| Sep 14 | 18:00 GMT | 30.2 | -68.7 | 120 mph | -- | Hurricane | 3 |
| Sep 14 | 15:00 GMT | 29.84 | -68.99 | 120 mph | -- | Hurricane | 3 |
| Sep 14 | 12:00 GMT | 29.5 | -69.2 | 120 mph | -- | Hurricane | 3 |
| Sep 14 | 09:00 GMT | 29.19 | -69.39 | 120 mph | -- | Hurricane | 3 |
| Sep 14 | 06:00 GMT | 28.9 | -69.5 | 120 mph | -- | Hurricane | 3 |
| Sep 14 | 03:00 GMT | 28.6 | -69.52 | 120 mph | -- | Hurricane | 3 |
| Sep 14 | 00:00 GMT | 28.3 | -69.5 | 120 mph | -- | Hurricane | 3 |
| Sep 13 | 21:00 GMT | 28.01 | -69.5 | 120 mph | -- | Hurricane | 3 |
| Sep 13 | 18:00 GMT | 27.7 | -69.5 | 120 mph | -- | Hurricane | 3 |
| Sep 13 | 15:00 GMT | 27.39 | -69.51 | 120 mph | -- | Hurricane | 3 |
| Sep 13 | 12:00 GMT | 27 | -69.5 | 120 mph | -- | Hurricane | 3 |
| Sep 13 | 09:00 GMT | 26.49 | -69.46 | 115 mph | -- | Hurricane | 3 |
| Sep 13 | 06:00 GMT | 25.9 | -69.4 | 115 mph | -- | Hurricane | 3 |
| Sep 13 | 03:00 GMT | 25.31 | -69.35 | 115 mph | -- | Hurricane | 3 |
| Sep 13 | 00:00 GMT | 24.7 | -69.3 | 115 mph | -- | Hurricane | 3 |
| Sep 12 | 21:00 GMT | 24.09 | -69.24 | 110 mph | -- | Hurricane | 3 |
| Sep 12 | 18:00 GMT | 23.5 | -69.2 | 110 mph | -- | Hurricane | 2 |
| Sep 12 | 15:00 GMT | 22.98 | -69.21 | 110 mph | -- | Hurricane | 2 |
| Sep 12 | 12:00 GMT | 22.5 | -69.2 | 110 mph | -- | Hurricane | 2 |
| Sep 12 | 09:00 GMT | 22.04 | -69.11 | 110 mph | -- | Hurricane | 2 |
| Sep 12 | 06:00 GMT | 21.6 | -69 | 110 mph | -- | Hurricane | 2 |
| Sep 12 | 03:00 GMT | 21.15 | -68.89 | 110 mph | -- | Hurricane | 2 |
| Sep 12 | 00:00 GMT | 20.7 | -68.8 | 110 mph | -- | Hurricane | 2 |
| Sep 11 | 21:00 GMT | 20.24 | -68.74 | 105 mph | -- | Hurricane | 2 |
| Sep 11 | 18:00 GMT | 19.8 | -68.7 | 105 mph | -- | Hurricane | 2 |
| Sep 11 | 15:00 GMT | 19.39 | -68.65 | 105 mph | -- | Hurricane | 2 |
| Sep 11 | 12:00 GMT | 19 | -68.6 | 105 mph | -- | Hurricane | 2 |
| Sep 11 | 09:00 GMT | 18.64 | -68.56 | 115 mph | -- | Hurricane | 3 |
| Sep 11 | 06:00 GMT | 18.3 | -68.5 | 125 mph | -- | Hurricane | 3 |
| Sep 11 | 03:00 GMT | 17.95 | -68.42 | 125 mph | -- | Hurricane | 3 |
| Sep 11 | 00:00 GMT | 17.6 | -68.3 | 125 mph | -- | Hurricane | 3 |
| Sep 10 | 21:00 GMT | 17.24 | -68.17 | 120 mph | -- | Hurricane | 3 |
| Sep 10 | 18:00 GMT | 16.9 | -68 | 115 mph | 961 mb | Hurricane | 3 |
| Sep 10 | 15:00 GMT | 16.59 | -67.82 | 115 mph | -- | Hurricane | 3 |
| Sep 10 | 12:00 GMT | 16.3 | -67.6 | 115 mph | -- | Hurricane | 3 |
| Sep 10 | 09:00 GMT | 16 | -67.32 | 115 mph | -- | Hurricane | 3 |
| Sep 10 | 06:00 GMT | 15.7 | -67 | 115 mph | -- | Hurricane | 3 |
| Sep 10 | 03:00 GMT | 15.39 | -66.67 | 115 mph | -- | Hurricane | 3 |
| Sep 10 | 00:00 GMT | 15.1 | -66.3 | 115 mph | -- | Hurricane | 3 |
| Sep 9 | 21:00 GMT | 14.85 | -65.92 | 115 mph | -- | Hurricane | 3 |
| Sep 9 | 18:00 GMT | 14.6 | -65.5 | 115 mph | -- | Hurricane | 3 |
| Sep 9 | 15:00 GMT | 14.32 | -65.04 | 115 mph | -- | Hurricane | 3 |
| Sep 9 | 12:00 GMT | 14 | -64.5 | 115 mph | -- | Hurricane | 3 |
| Sep 9 | 09:00 GMT | 13.61 | -63.88 | 110 mph | -- | Hurricane | 3 |
| Sep 9 | 06:00 GMT | 13.2 | -63.2 | 110 mph | -- | Hurricane | 2 |
| Sep 9 | 03:00 GMT | 12.8 | -62.51 | 105 mph | -- | Hurricane | 2 |
| Sep 9 | 00:00 GMT | 12.4 | -61.8 | 105 mph | -- | Hurricane | 2 |
| Sep 8 | 21:00 GMT | 11.98 | -61.1 | 100 mph | -- | Hurricane | 2 |
| Sep 8 | 18:00 GMT | 11.6 | -60.4 | 90 mph | -- | Hurricane | 1 |
| Sep 8 | 15:00 GMT | 11.26 | -59.71 | 85 mph | -- | Hurricane | 1 |
| Sep 8 | 12:00 GMT | 11 | -59 | 80 mph | -- | Hurricane | 1 |
| Sep 8 | 09:00 GMT | 10.81 | -58.27 | 75 mph | -- | Hurricane | 1 |
| Sep 8 | 06:00 GMT | 10.7 | -57.5 | 75 mph | -- | Hurricane | 1 |
| Sep 8 | 03:00 GMT | 10.63 | -56.71 | 70 mph | -- | Tropical Storm | -- |
| Sep 8 | 00:00 GMT | 10.6 | -55.9 | 70 mph | -- | Tropical Storm | -- |
| Sep 7 | 21:00 GMT | 10.55 | -55.12 | 65 mph | -- | Tropical Storm | -- |
| Sep 7 | 18:00 GMT | 10.5 | -54.3 | 60 mph | -- | Tropical Storm | -- |
| Sep 7 | 15:00 GMT | 10.45 | -53.45 | 60 mph | -- | Tropical Storm | -- |
| Sep 7 | 12:00 GMT | 10.4 | -52.5 | 60 mph | -- | Tropical Storm | -- |
| Sep 7 | 09:00 GMT | 10.35 | -51.43 | 60 mph | -- | Tropical Storm | -- |
| Sep 7 | 06:00 GMT | 10.3 | -50.3 | 60 mph | -- | Tropical Storm | -- |
| Sep 7 | 03:00 GMT | 10.25 | -49.19 | 60 mph | -- | Tropical Storm | -- |
| Sep 7 | 00:00 GMT | 10.2 | -48.1 | 60 mph | -- | Tropical Storm | -- |
| Sep 6 | 21:00 GMT | 10.15 | -47.04 | 55 mph | -- | Tropical Storm | -- |
| Sep 6 | 18:00 GMT | 10.1 | -46 | 50 mph | -- | Tropical Storm | -- |
| Sep 6 | 15:00 GMT | 10.04 | -44.99 | 50 mph | -- | Tropical Storm | -- |
| Sep 6 | 12:00 GMT | 10 | -44 | 50 mph | -- | Tropical Storm | -- |
| Sep 6 | 09:00 GMT | 9.99 | -43 | 50 mph | -- | Tropical Storm | -- |
| Sep 6 | 06:00 GMT | 10 | -42 | 45 mph | -- | Tropical Storm | -- |
| Sep 6 | 03:00 GMT | 10 | -41 | 45 mph | -- | Tropical Storm | -- |
| Sep 6 | 00:00 GMT | 10 | -40 | 45 mph | -- | Tropical Storm | -- |
Learn more about Unnamed Hurricane and the 1921 Atlantic hurricane season in our hurricane archive.
View All Hurricanes and Tropical Cyclones