Patricia's intensification defied forecasting models. Between 06:00 UTC on October 22 and 06:00 UTC on October 23, its sustained winds increased by 120 mph, a record single-day leap. In that same window, central pressure plummeted by 95 millibars. Hurricane hunters flying into the storm found a tight, 12-mile-wide eye surrounded by a solid ring of towering cloud tops, the signature of a Category 5 hurricane at peak fury. The NHC later noted that Patricia may have briefly surpassed Typhoon Tip as the strongest tropical cyclone ever observed, but the lack of direct measurements at the exact moment of peak intensity prevented confirmation. What is certain is that no hurricane had ever intensified this fast, and no Western Hemisphere cyclone had ever been this powerful.

Mexico's emergency response was massive and rapid. Across Michoacan, Colima, Jalisco, and Nayarit, 1,782 shelters opened on October 22 with capacity for 258,000 people. Civil protection officials mobilized 600 buses and two aircraft to evacuate roughly 50,000 people from the projected path. Ultimately, 8,500 evacuated before landfall, including 2,600 from Cabo Corrientes, directly in the storm's projected track. The Mexican Army, Navy, and Federal Police deployed 25,000 personnel preemptively. More than 500 Red Cross volunteers stood ready. The Electric Federal Commission dispatched 2,500 crewmen, 152 cranes, and 84 generators to prepare for the inevitable blackouts. In Colima, 30,000 kilograms of relief supplies were staged for immediate distribution. Schools suspended classes across Guerrero and Jalisco. The speed of mobilization would prove decisive.

Patricia made landfall on the evening of October 23 as a Category 4 hurricane, having weakened somewhat over water in the hours before striking land, a record amount of over-water weakening. Even diminished, it remained at landfall the most intense Pacific hurricane on record at the time, with a pressure of 932 millibars. But its core was only 15 miles wide, and that narrow eye passed through sparsely populated terrain with fewer than 30 people per square mile. Had the storm tracked slightly east or west, it would have struck Manzanillo or Puerto Vallarta directly, cities with hundreds of thousands of residents. Instead, small communities like Chamela, home to just 40 families, absorbed the full force. Chamela was completely flattened. A 224-meter cargo ship, the bulk carrier Los Llanitos, was shoved off course and grounded near Barra de Navidad; her 27 crew survived thanks to a military helicopter rescue, but the ship was scrapped where it lay.

Six people died in Jalisco from direct or indirect effects of the hurricane. Across the state, approximately 9,000 homes were damaged or destroyed. Agricultural losses were staggering: more than 24,000 hectares of crops affected, with total damage reaching 1.139 billion pesos, roughly 68.6 million US dollars. In Colima, 200 schools, 107 health facilities, and 11,645 hectares of farmland sustained damage, with banana crop losses alone estimated at 500 million pesos. Michoacan suffered even heavier agricultural devastation. Roads were washed out, isolating entire communities. In Coahuayana, 5,600 hectares of bananas were ruined, the worst crop loss in the municipality's history, costing thousands of residents their livelihoods. Patricia's precursor rains had already hammered Central America and eastern Mexico for days before landfall, flooding 1,500 homes in Chetumal alone and causing 85.3 million US dollars in damage across Quintana Roo.

Within a day of landfall, 5,791 marines from Mexico's Naval Infantry Force reached the hardest-hit areas. The recovery effort underscored both the effectiveness of the preparations and the limits of what preparation can achieve against nature. Fifteen of Jalisco's 125 municipalities were declared disaster areas. Of the 24,000 hectares of crops destroyed in Jalisco, only 6,600 were insured. In January 2016, Michoacan enacted a 10-million-peso program to build 605 homes for displaced families. The World Meteorological Organization retired the name Patricia in April 2016. It was replaced by Pamela for the 2021 season. Patricia left behind a paradox: the most powerful winds ever measured in a tropical cyclone, yet a death toll of six, thanks to a narrow storm core, a fortuitous track through empty land, and a mobilization that got people out of the way in time.