Three new hotspots have been added to the map highlighting areas in the Guadalajara metropolitan region that are prone to flash flooding during the upcoming rainy season, set to begin in the next few weeks.
The new locations in Tonalá, Tlaquepaque and Zapotlanejo bring the total number of hotspots to 363, with 143 of these classified as “high risk” zones.
The general public can access the full list of locations online through the Mapa Único de Inundaciones 2025, created by the Metropolitan Planning Institute (IMEPLAN).
The map shows a reduction of eight “critical” flooding points over the past five years, attributed to improvements in mitigation measures such as clearing storm drains and ongoing monitoring. However, the total number of zones prone to some form of flooding has increased by 51, from 312 to 363, in the same period.
High-traffic roads in the Guadalajara metropolitan area that are particularly vulnerable to severe flooding include Avenida López Mateos, especially in the zone bordering Plaza del Sol and the Las Fuentes neighborhood, as well as Avenida Patria, particularly at the intersection with Beethoven in Colonia La Estancia.
Many of the city’s underpasses—24 of which are highlighted on the IMEPLAN map—are prone to flash flooding, with water levels rising rapidly during storms. Motorists are advised to exercise extreme caution if they approach an underpass that appears to be filling up quickly with rainwater.