Storm Activity: Sep 20, 1977 - Sep 24, 1977
Sep 24 · 12:00 GMT 30 mph -- Extrapolated
| Sep 24 | 12:00 GMT | 27.4 | -122.3 | 30 mph | -- | Extrapolated | -- |
| Sep 24 | 09:00 GMT | 27.3 | -122.41 | 30 mph | -- | Tropical Depression | -- |
| Sep 24 | 06:00 GMT | 27.1 | -122.5 | 30 mph | -- | Tropical Depression | -- |
| Sep 24 | 03:00 GMT | 26.73 | -122.59 | 30 mph | -- | Tropical Depression | -- |
| Sep 24 | 00:00 GMT | 26.2 | -122.8 | 30 mph | -- | Tropical Depression | -- |
| Sep 23 | 21:00 GMT | 25.55 | -123.25 | 35 mph | -- | Tropical Storm | -- |
| Sep 23 | 18:00 GMT | 24.8 | -123.8 | 40 mph | -- | Tropical Storm | -- |
| Sep 23 | 15:00 GMT | 24.04 | -124.32 | 55 mph | -- | Tropical Storm | -- |
| Sep 23 | 12:00 GMT | 23.2 | -124.8 | 70 mph | -- | Tropical Storm | -- |
| Sep 23 | 09:00 GMT | 22.26 | -125.21 | 75 mph | -- | Hurricane | 1 |
| Sep 23 | 06:00 GMT | 21.3 | -125.6 | 80 mph | -- | Hurricane | 1 |
| Sep 23 | 03:00 GMT | 20.38 | -125.99 | 85 mph | -- | Hurricane | 1 |
| Sep 23 | 00:00 GMT | 19.5 | -126.4 | 90 mph | -- | Hurricane | 1 |
| Sep 22 | 21:00 GMT | 18.62 | -126.88 | 100 mph | -- | Hurricane | 2 |
| Sep 22 | 18:00 GMT | 17.9 | -127.3 | 105 mph | -- | Hurricane | 2 |
| Sep 22 | 15:00 GMT | 17.49 | -127.54 | 100 mph | -- | Hurricane | 2 |
| Sep 22 | 12:00 GMT | 17.2 | -127.7 | 90 mph | -- | Hurricane | 1 |
| Sep 22 | 09:00 GMT | 16.79 | -127.95 | 85 mph | -- | Hurricane | 1 |
| Sep 22 | 06:00 GMT | 16.4 | -128.1 | 80 mph | -- | Hurricane | 1 |
| Sep 22 | 03:00 GMT | 16.09 | -128.05 | 75 mph | -- | Hurricane | 1 |
| Sep 22 | 00:00 GMT | 15.8 | -127.8 | 75 mph | -- | Hurricane | 1 |
| Sep 21 | 21:00 GMT | 15.42 | -127.37 | 70 mph | -- | Tropical Storm | -- |
| Sep 21 | 18:00 GMT | 15.1 | -126.9 | 65 mph | -- | Tropical Storm | -- |
| Sep 21 | 15:00 GMT | 14.97 | -126.59 | 60 mph | -- | Tropical Storm | -- |
| Sep 21 | 12:00 GMT | 14.9 | -126.3 | 50 mph | -- | Tropical Storm | -- |
| Sep 21 | 09:00 GMT | 14.75 | -125.91 | 50 mph | -- | Tropical Storm | -- |
| Sep 21 | 06:00 GMT | 14.6 | -125.5 | 45 mph | -- | Tropical Storm | -- |
| Sep 21 | 03:00 GMT | 14.5 | -125.13 | 45 mph | -- | Tropical Storm | -- |
| Sep 21 | 00:00 GMT | 14.4 | -124.8 | 40 mph | -- | Tropical Storm | -- |
| Sep 20 | 21:00 GMT | 14.25 | -124.51 | 35 mph | -- | Tropical Depression | -- |
| Sep 20 | 18:00 GMT | 14.1 | -124.3 | 30 mph | -- | Tropical Depression | -- |
| Sep 20 | 15:00 GMT | 13.99 | -124.22 | 30 mph | -- | Tropical Depression | -- |
| Sep 20 | 12:00 GMT | 13.9 | -124.2 | 30 mph | -- | Tropical Depression | -- |
Learn more about Hurricane Florence and the 1977 Eastern Pacific hurricane season in our hurricane archive.
View All Hurricanes and Tropical Cyclones