Tropical Storm Boris made landfall on the Pacific coast of Mexico between the states of Guerrero and Oaxaca on June 9, 2026 [1].

The activation of federal emergency plans highlights the immediate risk of flooding and landslides in these coastal regions. Local authorities are coordinating with the federal government to mitigate the impact of heavy rains and high winds on vulnerable populations.

Maximum sustained winds were recorded at 45 mph [1] at the time of landfall. The storm began forming off the coast on June 8, 2026 [2], before moving toward the shore. While the New York Times reported that the system was expected to move ashore throughout Monday, Univision said the official landfall and the subsequent activation of emergency plans occurred on June 9, 2026 [1, 2].

Emergency response teams are currently monitoring the states of Guerrero and Oaxaca. These areas are particularly susceptible to mudslides when tropical systems dump significant rainfall on mountainous terrain, a primary concern for officials during this event [1].

Despite the activation of emergency protocols, there have been zero reported fatalities [1] as of the latest updates. Federal and local authorities continue to manage the situation on the ground to prevent casualties as the storm progresses inland.

Tropical Storm Boris made landfall on the Pacific coast of Mexico between the states of Guerrero and Oaxaca.

The rapid activation of emergency plans in Guerrero and Oaxaca suggests a prioritized approach to disaster mitigation in regions historically prone to landslide fatalities. By deploying resources immediately upon landfall, Mexican authorities aim to prevent the infrastructure collapse often associated with Pacific tropical storms.