Hurricane Guillermo (1991)
Aug 4, 12:00 AM UTC – Aug 10, 6:00 PM UTC (6.8 days)
- Peak
- Hurricane, Category 1
- Max sustained wind
- 80 mph (70 kt)
- Lowest pressure
- 983 mb
- Landfalls
- 0
Track
- Hurricane
- Tropical Storm
- Tropical Depression
- Other
- Large white-ringed dots: landfall
Every track point (28)
| UTC | Status | Position | Wind kt | mb | Note |
|---|---|---|---|---|---|
| 1991-08-04 00:00 | TD | 12.3°N 98.4°W | 25 | 1010 | |
| 1991-08-04 06:00 | TD | 12.9°N 99.4°W | 25 | 1009 | |
| 1991-08-04 12:00 | TD | 13.4°N 100.2°W | 30 | 1008 | |
| 1991-08-04 18:00 | TS | 13.8°N 101.1°W | 35 | 1007 | |
| 1991-08-05 00:00 | TS | 14.3°N 101.9°W | 40 | 1004 | |
| 1991-08-05 06:00 | TS | 14.7°N 102.8°W | 50 | 1000 | |
| 1991-08-05 12:00 | HU | 15.2°N 103.7°W | 65 | 993 | |
| 1991-08-05 18:00 | HU | 15.6°N 104.8°W | 70 | 985 | |
| 1991-08-06 00:00 | HU | 15.9°N 106.3°W | 70 | 984 | |
| 1991-08-06 06:00 | HU | 16.2°N 107.7°W | 70 | 983 | |
| 1991-08-06 12:00 | HU | 16.4°N 109.0°W | 70 | 983 | |
| 1991-08-06 18:00 | HU | 16.5°N 110.2°W | 70 | 983 | |
| 1991-08-07 00:00 | HU | 16.6°N 111.4°W | 70 | 984 | |
| 1991-08-07 06:00 | HU | 16.8°N 112.7°W | 65 | 987 | |
| 1991-08-07 12:00 | TS | 17.0°N 114.0°W | 60 | 991 | |
| 1991-08-07 18:00 | TS | 17.2°N 115.3°W | 55 | 995 | |
| 1991-08-08 00:00 | TS | 17.3°N 116.6°W | 50 | 997 | |
| 1991-08-08 06:00 | TS | 17.4°N 117.8°W | 45 | 1000 | |
| 1991-08-08 12:00 | TS | 17.5°N 119.1°W | 40 | 1002 | |
| 1991-08-08 18:00 | TS | 17.5°N 120.4°W | 40 | 1004 | |
| 1991-08-09 00:00 | TS | 17.5°N 121.9°W | 35 | 1005 | |
| 1991-08-09 06:00 | TS | 17.4°N 123.5°W | 35 | 1007 | |
| 1991-08-09 12:00 | TD | 17.3°N 125.3°W | 30 | 1008 | |
| 1991-08-09 18:00 | TD | 17.0°N 127.1°W | 30 | 1008 | |
| 1991-08-10 00:00 | TD | 16.5°N 128.9°W | 25 | 1009 | |
| 1991-08-10 06:00 | TD | 16.1°N 130.5°W | 25 | 1009 | |
| 1991-08-10 12:00 | TD | 15.6°N 132.0°W | 25 | 1009 | |
| 1991-08-10 18:00 | TD | 15.2°N 133.6°W | 25 | 1010 |
From the National Hurricane Center's best-track archive (HURDAT2), its post-season reanalysis; values can differ from the advisories issued at the time. Source: hurdat2-1851-2025-092326.txt, hurdat2-nepac-1949-2025-092926.txt.