This circulation dissipated by September 19, just east of the border between Arizona and New Mexico, leaving behind a marked mass of thunderstorms which persisted across the region for the next several days. Shortly after designation, a "yellow" alert was issued for western Michoacán, while a "green" alert was issued for the rest of the state, Colima, and Jalisco. Meanwhile, a "blue" alert was in effect for Nayarit, Oaxaca, and Guerrero. On September 11, the Servicio Meteorológico Nacional issued a tropical storm watch from Lazaro Cardenas to Manzanillo. The watch was gradually extended northward as Odile paralleled the coast, and was briefly upgraded into a tropical storm warning on September 14. At 09:00 UTC September 13, a tropical storm watch was declared from La Paz, Baja California Sur to Santa Fe. At this time, all dynamical models kept this system far offshore, so Odile was only expected to pose a slight threat to the area. However, at 21:00 UTC, as the guidance rapidly shifted left, a tropical storm warning and hurricane watch was declared for the southern portion of the peninsula. At 03:00 UTC September 14, a little under 26 hours prior to its first landfall, a hurricane warning was declared. Meanwhile, the Baja California Peninsula was placed under "red" (maximum) alert. The aforementioned warnings and watches were gradually extended north as the storm progressed inland, before finally being cancelled after moving inland mainland Mexico on September 17. Following the sudden shift in the projected track, a state of emergency was declared on September 14 in La Paz, Los Cabos, Comondú, Loreto and Mulegé. In Cabo San Lucas, 2,100 marine workers were set up to start evacuations. In La Paz, classes were suspended. Throughout the peninsula, 164 shelters were opened capable of harboring 30,000 people, but only 3,500 persons used these shelters. At the time of landfall, hotels in the state were at 46% of capacity, equal to 30,000 tourists, 26,000 of whom were foreigners. The ports of La Paz, Los Cabos, San José del Cabo, and Loreto were closed. Around 800 marine officers were placed on standby. Police with megaphones walked through vulnerable areas in Cabo San Lucas urging people to evacuate.