| Sep 22 12:00 | TD | 29 mph | 1005 mb | 13.8°N 98.6°W | 171 mi SSW of Río Grande, Oaxaca, Mexico |
| Sep 22 18:00 | TD | 35 mph | 1004 mb | 13.9°N 98.6°W | 165 mi SSW of Río Grande, Oaxaca, Mexico |
| Sep 23 00:00 | TS | 40 mph | 1002 mb | 14.0°N 98.6°W | 159 mi SSW of Río Grande, Oaxaca, Mexico |
| Sep 23 06:00 | TS | 46 mph | 1000 mb | 14.2°N 98.5°W | 144 mi SSW of Río Grande, Oaxaca, Mexico |
| Sep 23 12:00 | TS | 69 mph | 992 mb | 14.6°N 98.4°W | 117 mi SSW of Río Grande, Oaxaca, Mexico |
| Sep 23 18:00 | Cat 1 | 92 mph | 977 mb | 15.2°N 98.4°W | 82 mi SSW of Pinotepa Nacional, Oaxaca, Mexico |
| Sep 24 00:00 | Cat 3 | 115 mph | 960 mb | 15.9°N 98.6°W | 41 mi SSW of Cuajinicuilapa, Guerrero, Mexico |
| Sep 24 03:00 | Cat 3 LANDFALL | 121 mph | 956 mb | 16.6°N 98.9°W | 17 mi ESE of Cruz Grande, Guerrero, Mexico |
| Sep 24 06:00 | Cat 2 | 98 mph | 973 mb | 16.9°N 99.3°W | near San Marcos, Guerrero, Mexico |
| Sep 24 12:00 | TS | 52 mph | 999 mb | 17.5°N 100.3°W | 22 mi NNE of Atoyac de Álvarez, Guerrero, Mexico |
| Sep 24 18:00 | TD low/wave | 35 mph | 1003 mb | 17.4°N 100.7°W | 13 mi NNW of Técpan de Galeana, Guerrero, Mexico |
| Sep 25 00:00 | TD low/wave | 35 mph | 1001 mb | 17.1°N 101.0°W | 26 mi WSW of Técpan de Galeana, Guerrero, Mexico |
| Sep 25 06:00 | TD low/wave | 35 mph | 1000 mb | 16.8°N 101.3°W | 51 mi S of Petatlán, Guerrero, Mexico |
| Sep 25 12:00 | TS | 40 mph | 1000 mb | 16.4°N 101.5°W | 80 mi S of Petatlán, Guerrero, Mexico |
| Sep 25 18:00 | TS | 52 mph | 996 mb | 16.7°N 101.7°W | 66 mi S of Ixtapa-Zihuatanejo, Guerrero, Mexico |
| Sep 26 00:00 | TS | 63 mph | 984 mb | 16.9°N 102.0°W | 59 mi SSW of Ixtapa-Zihuatanejo, Guerrero, Mexico |
| Sep 26 06:00 | TS | 69 mph | 982 mb | 17.0°N 102.3°W | 67 mi S of Ciudad Lázaro Cárdenas, Michoacán, Mexico |
| Sep 26 12:00 | Cat 1 | 75 mph | 979 mb | 17.1°N 102.5°W | 63 mi SSW of Ciudad Lázaro Cárdenas, Michoacán, Mexico |
| Sep 26 18:00 | Cat 1 | 75 mph | 979 mb | 17.3°N 102.7°W | 56 mi SW of Ciudad Lázaro Cárdenas, Michoacán, Mexico |
| Sep 27 00:00 | TS | 69 mph | 984 mb | 17.5°N 102.9°W | 56 mi SW of Ciudad Lázaro Cárdenas, Michoacán, Mexico |
| Sep 27 06:00 | TS | 63 mph | 988 mb | 17.8°N 102.9°W | 47 mi WSW of Ciudad Lázaro Cárdenas, Michoacán, Mexico |
| Sep 27 12:00 | TS | 58 mph | 993 mb | 18.0°N 102.9°W | 38 mi W of La Mira, Michoacán, Mexico |
| Sep 27 16:00 | TS LANDFALL | 58 mph | 993 mb | 18.2°N 103.1°W | 40 mi S of Coalcomán de Vázquez Pallares, Michoacán, Mexico |
| Sep 27 18:00 | TS | 40 mph | 1000 mb | 18.3°N 103.2°W | 33 mi S of Coalcomán de Vázquez Pallares, Michoacán, Mexico |