A sudden cloudburst dumped about 83 millimetres of rain on the Guadalajara suburb of Zapopan on the night of 15 July, unleashing flash floods that burst the banks of a local arroyo and inundated the neighbourhoods of La Martinica and Tabachines. Civil Protection officials said a three-month-old baby died when a wall collapsed, and roughly 14 residents were treated for injuries ranging from fractures to hypothermia. An initial survey counted 144 homes damaged—14 of them with structural compromise—and more than 30 vehicles swept away or left beyond repair. Municipal authorities activated the army-backed Plan DN-III-E and deployed rescue crews, medical brigades and cleaning teams at first light. Mayor Juan José Frangie reported that community kitchens, temporary shelters and insurance assessors were operating on site while engineers evaluated embankments and drainage to prevent further incidents. Zapopan lies in a fast-growing metropolitan area that has seen repeated seasonal flooding; state officials said they are reviewing drainage projects and retention basins as thunderstorms persist in western Mexico’s rainy season.