BANGKOK: The Thai Meteorological Department (TMD) has warned of five days of heavy to very heavy rain across Thailand, with several provinces facing an increased risk of flash floods and forest run-off during the long holiday period.
The department's fourth weather warning, issued at 5am on July 25, covers July 26 to 30. It forecasts heavy rain in many areas, with very heavy downpours expected in parts of the Northeast, Central region, East and the western coast of the South.
The TMD said a monsoon trough would move across the North and upper Northeast, while the southwest monsoon over the Andaman Sea, Thailand and the Gulf of Thailand would strengthen.
Residents in low-lying areas, on hillsides and near waterways were advised to prepare for accumulated rainfall that could trigger sudden flooding and rapid forest run-off.
Rough seas expected as monsoon strengthens
Waves in the upper Andaman Sea are forecast to reach two to three metres and could exceed three metres during thunderstorms.
In the upper Gulf of Thailand and lower Andaman Sea, waves are expected to reach about two metres and could exceed that height during storms.
The TMD advised mariners to exercise caution and avoid areas affected by thunderstorms. Small boats in the upper Andaman Sea should remain ashore throughout the warning period.
Severe Tropical Storm Noul, meanwhile, was located over the upper South China Sea and is expected to make landfall in Guangdong province, China, on July 26.
The storm is not expected to move into Thailand, but travellers heading to affected areas of China were advised to check weather conditions before departure.
