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Thailand Issues Heavy Rain and Storm Warning for 40 Provinces

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The Thai Meteorological Department has issued a severe weather warning for 40 provinces, citing increased rainfall and the formation of Tropical Storm Kujira.

On August 5, 2026, the Thai Meteorological Department (TMD) reported an increase in rainfall across Thailand, affecting 40 provinces. According to Khaosod Online, the weather pattern is driven by a monsoon trough passing through the upper North and Laos, connecting to a low-pressure area near Vietnam, alongside a strengthening southwest monsoon.

Residents and travelers in the North, Northeast, Central, East, and South regions should prepare for heavy to very heavy rainfall. The TMD has specifically warned of potential flash floods and forest runoff, particularly in low-lying areas and near mountain slopes.

Maritime conditions are also deteriorating. The upper Andaman Sea is experiencing waves between 2 and 3 meters, with heights exceeding 3 meters during thunderstorms. The lower Andaman Sea and upper Gulf of Thailand face waves of approximately 2 meters. Small boats in the upper Andaman Sea are advised to remain ashore, and all mariners are urged to exercise extreme caution.

Additionally, a depression in the South China Sea has intensified into Tropical Storm 'Kujira.' While the immediate impact of the storm is being monitored, the combination of these weather systems necessitates vigilance. Travelers are advised to monitor local weather updates closely, as conditions may change rapidly. Authorities have not yet provided a timeline for when these severe weather conditions are expected to subside.

Translated from Thai.

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