which part of the first country?
The Pacific Coast of the Baja California Peninsula from Punta Abreojos to Cabo San Quintín.
Hurricane Rosa (2018)
The Government of Mexico issued a tropical storm watch on September 29 for the Pacific Coast of the Baja California Peninsula from Punta Abreojos to Cabo San Quintín. 
where did hurricane rosa hit? Northwestern Mexico and the Southwestern United States when did it strike the first country? Late September 2018 and the second? Late September 2018
wiki:9436843
Hurricane Rosa (2018) [SEP] Mexico
The Government of Mexico issued a tropical storm watch on September 29 for the Pacific Coast of the Baja California Peninsula from Punta Abreojos to Cabo San Quintín. The watches on the west coast of Baja California were changed to tropical storm warnings, and watches were issued for the east coast of Baja California from Bahia de los Angeles to San Felipe on the next day. All the watches and warnings were discontinued after Rosa weakened to a tropical depression. The State Unit of Civil Protection of Sonora issued a yellow alert (imminent severe weather) for 11 municipalities and a green alert (possible severe weather) for 19 municipalities on September 30.