| 9 | 1500 FRI APR 21 | Post-Tropical Cyclone Arlene | 39.3N | 49.9W | SW | 23 (20) | 995 (29.38) | 50 (43) |
| 8 | 0900 FRI APR 21 | Tropical Storm Arlene | 40N | 48W | W | 31 (27) | 993 (29.32) | 50 (43) |
| 7 | 0300 FRI APR 21 | Tropical Storm Arlene | 39.4N | 44.2W | NW | 28 (24) | 993 (29.32) | 50 (43) |
| 6 | 2100 THU APR 20 | Tropical Storm Arlene | 37.7N | 42W | WNW | 25 (22) | 993 (29.32) | 45 (39) |
| 5 | 1500 THU APR 20 | Tropical Depression One | 36.1N | 40W | NW | 14 (12) | 996 (29.41) | 35 (30) |
| 4 | 0900 THU APR 20 | Subtropical Depression One | 34.4N | 39.3W | N | 14 (12) | 996 (29.41) | 35 (30) |
| 3 | 0300 THU APR 20 | Subtropical Depression One | 33.2N | 39.3W | NE | 12 (10) | 996 (29.41) | 35 (30) |
| 2 | 2100 WED APR 19 | Subtropical Depression One | 32.4N | 40W | N | 12 (10) | 996 (29.41) | 35 (30) |
| 1 | 1500 WED APR 19 | Subtropical Depression One | 31.9N | 40.9W | NNE | 8 (7) | 995 (29.38) | 35 (30) |
| | 1500 WED APR 19 | | 31.9N | 40.9W | NNE | 8 (7) | 995 (29.38) | 35 (30) |