The TMD issued heavy rain and flash flood warnings for western provinces during the system's passage over the Isthmus of Kra. In Ratchaburi Province, disaster response teams prepared for the evacuation of settlements in mountainous terrain on May 3. The next day, Prachuap Khiri Khan Province was declared a disaster zone after low-lying areas were flooded with waters up to one metre deep. In the capital municipality, a prison was inundated, necessitating the evacuation of prisoners to Ratchaburi. In addition, a portion of rail was flooded, but train services were not disrupted. In Surat Thani Province, mudslides halted traffic in the municipal area. Multiple landslide warnings were also issued in other provinces. Northwestern provinces also braced for heavy rains following the system's second landfall.