Bangkok: Heavy rains have battered northern Thailand, causing waves to surge up to 2 meters high, prompting authorities to caution small boats in the affected regions. Northeastern Thailand is bracing for significant weather impacts, with forecasts indicating an increased risk of flash floods and landslides due to accumulated rainfall expected from September 6-12.
According to Thai News Agency, the heavy rainfall is attributed to a monsoon trough passing through northern and upper northeastern Thailand, entering a low-pressure area in the upper South China Sea. This situation is exacerbated by a moderate southwest monsoon that continues to cover the Andaman Sea, Thailand, and the Gulf of Thailand. The public is urged to be vigilant, particularly those residing near the Mekong River basin, hillsides near waterways, and low-lying areas susceptible to flooding. It is advised to avoid traveling on flood-prone routes, especially in areas where short-term flooding may occur.
Wave conditions in the Andaman Sea and the Gulf of Thailand remain moderate, with waves in the upper Andaman Sea reaching approximately 2 meters and exceeding this height in areas experiencing thunderstorms. Mariners in these regions are advised to take precautions and avoid navigating through stormy areas.
The weather forecast for the upcoming week predicts heavy to very heavy rainfall in parts of upper Thailand, especially in the Northeast, due to the monsoon trough's movement and the southwest monsoon's influence. From September 8-12, increased rainfall is anticipated, affecting many areas, including the lower northern region, lower northeastern region, central region, Bangkok, and its surrounding areas, as the monsoon trough shifts southward.
Overall, the public is advised to remain alert to the potential dangers posed by heavy rainfall, including flash floods and landslides, particularly in slope areas near waterways and low-lying regions. Mariners are encouraged to exercise caution and avoid sailing in thunderstorm-prone areas.