Heavy Rain Risk Area
The southwest monsoon prevails over the Andaman Sea and Thailand while the southerly and the southeasterly wind brings moisture from the South China Sea and the Gulf to the country. The high-pressure system from China that has extended to cover the upper Northeastern region with thundershowers and gusty wind including lightning strikes in the upper country and isolated heavy rains.
For the Andaman Sea and the Gulf, waves will be higher than 2 meters high in thundershower areas.
In addition, during 9-13 October 2026, the another high pressure system from China will extend to cover the Northeast and the South China Sea leading to the monsoon trough move down to lies across the East, the upper South.
Meanwhile the moderate southwest monsoon prevailing over the Andaman Sea, Thailand and the Gulf. More rain with isolated heavy to very heavy rains are forecast in the East, the Central including Bangkok and vicinity and the South.
People in the country should beware of the severe condition and accumulated rain that may cause flash flood and overflows, especially along the waterways near foothills and lowlands with gusty winds and lighting strikes by keeping off outdoor places, big trees and unsecured billboards.
All ships in the Andaman Sea and the Gulf should keep off thundershowers.
During this period, people are advised to closely monitor weather forecasts and people in the affected areas should beware of heavy to very heavy rains and accumulated rains that may cause flash floods, overflows and landslides especially along the waterways near foothills and lowlands.
Varoitus voimassa ma klo 2:00 - ma klo 14:00
