Storm Activity: Aug 22, 1974 - Aug 27, 1974
Aug 27 · 12:00 GMT 60 mph -- Tropical Storm
| Aug 27 | 12:00 GMT | 19.5 | -128.5 | 60 mph | -- | Tropical Storm | -- |
| Aug 27 | 09:00 GMT | 19.45 | -126.99 | 60 mph | -- | Tropical Storm | -- |
| Aug 27 | 06:00 GMT | 19.4 | -125.6 | 65 mph | -- | Tropical Storm | -- |
| Aug 27 | 03:00 GMT | 19.35 | -124.46 | 70 mph | -- | Hurricane | -- |
| Aug 27 | 00:00 GMT | 19.3 | -123.6 | 80 mph | -- | Hurricane | 1 |
| Aug 26 | 21:00 GMT | 19.26 | -123.03 | 80 mph | -- | Hurricane | 1 |
| Aug 26 | 18:00 GMT | 19.2 | -122.6 | 80 mph | -- | Hurricane | 1 |
| Aug 26 | 15:00 GMT | 19.11 | -122.07 | 75 mph | -- | Tropical Storm | 1 |
| Aug 26 | 12:00 GMT | 19 | -121.5 | 70 mph | -- | Tropical Storm | -- |
| Aug 26 | 09:00 GMT | 18.91 | -120.86 | 70 mph | -- | Tropical Storm | -- |
| Aug 26 | 06:00 GMT | 18.8 | -120.2 | 70 mph | -- | Tropical Storm | -- |
| Aug 26 | 03:00 GMT | 18.65 | -119.6 | 70 mph | -- | Tropical Storm | -- |
| Aug 26 | 00:00 GMT | 18.5 | -119 | 70 mph | -- | Tropical Storm | -- |
| Aug 25 | 21:00 GMT | 18.4 | -118.33 | 70 mph | -- | Tropical Storm | -- |
| Aug 25 | 18:00 GMT | 18.3 | -117.7 | 70 mph | -- | Tropical Storm | -- |
| Aug 25 | 15:00 GMT | 18.14 | -117.18 | 70 mph | -- | Tropical Storm | -- |
| Aug 25 | 12:00 GMT | 18 | -116.8 | 70 mph | -- | Tropical Storm | -- |
| Aug 25 | 09:00 GMT | 17.93 | -116.56 | 70 mph | -- | Hurricane | -- |
| Aug 25 | 06:00 GMT | 17.9 | -116.4 | 75 mph | -- | Hurricane | 1 |
| Aug 25 | 03:00 GMT | 17.84 | -116.2 | 75 mph | -- | Hurricane | 1 |
| Aug 25 | 00:00 GMT | 17.8 | -116 | 80 mph | -- | Hurricane | 1 |
| Aug 24 | 21:00 GMT | 17.8 | -115.8 | 85 mph | -- | Hurricane | 1 |
| Aug 24 | 18:00 GMT | 17.8 | -115.6 | 85 mph | -- | Hurricane | 1 |
| Aug 24 | 15:00 GMT | 17.76 | -115.43 | 85 mph | -- | Hurricane | 1 |
| Aug 24 | 12:00 GMT | 17.7 | -115.2 | 80 mph | -- | Hurricane | 1 |
| Aug 24 | 09:00 GMT | 17.66 | -114.85 | 80 mph | -- | Hurricane | 1 |
| Aug 24 | 06:00 GMT | 17.6 | -114.4 | 80 mph | -- | Hurricane | 1 |
| Aug 24 | 03:00 GMT | 17.47 | -113.86 | 80 mph | -- | Hurricane | 1 |
| Aug 24 | 00:00 GMT | 17.3 | -113.3 | 80 mph | -- | Hurricane | 1 |
| Aug 23 | 21:00 GMT | 17.16 | -112.83 | 75 mph | -- | Tropical Storm | 1 |
| Aug 23 | 18:00 GMT | 17 | -112.4 | 70 mph | -- | Tropical Storm | -- |
| Aug 23 | 15:00 GMT | 16.81 | -111.97 | 55 mph | -- | Tropical Storm | -- |
| Aug 23 | 12:00 GMT | 16.6 | -111.6 | 40 mph | -- | Tropical Storm | -- |
| Aug 23 | 09:00 GMT | 16.41 | -111.33 | 40 mph | -- | Tropical Storm | -- |
| Aug 23 | 06:00 GMT | 16.2 | -111.1 | 40 mph | -- | Tropical Storm | -- |
| Aug 23 | 03:00 GMT | 15.96 | -110.85 | 40 mph | -- | Tropical Storm | -- |
| Aug 23 | 00:00 GMT | 15.7 | -110.6 | 40 mph | -- | Tropical Storm | -- |
| Aug 22 | 21:00 GMT | 15.45 | -110.34 | 40 mph | -- | Tropical Storm | -- |
| Aug 22 | 18:00 GMT | 15.2 | -110.1 | 40 mph | -- | Tropical Storm | -- |
| Aug 22 | 15:00 GMT | 14.94 | -109.89 | 35 mph | -- | Tropical Depression | -- |
| Aug 22 | 12:00 GMT | 14.7 | -109.7 | 30 mph | -- | Tropical Depression | -- |
| Aug 22 | 09:00 GMT | 14.49 | -109.49 | 30 mph | -- | Tropical Depression | -- |
| Aug 22 | 06:00 GMT | 14.3 | -109.3 | 30 mph | -- | Tropical Depression | -- |
| Aug 22 | 03:00 GMT | 14.14 | -109.14 | 30 mph | -- | Tropical Depression | -- |
| Aug 22 | 00:00 GMT | 14 | -109 | 30 mph | -- | Tropical Depression | -- |
Learn more about Hurricane Joyce and the 1974 Eastern Pacific hurricane season in our hurricane archive.
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