These conditions are the result of a moderate high-pressure system over upper Thailand and another strong high-pressure system that has extended from the South of China to the upper North and the upper Northeast regions, the department said.
People are advised to take care of their health and beware of potential wildfires caused by the strong winds and dry air, it said, adding that farmers should take measures to prevent crop damage.
Meanwhile, the moderate northeast monsoon prevails over the Gulf and the South and will bring isolated heavy rain in the South on Thursday. Residents should be on the alert for accumulations of rain that may cause flash floods and overflows, especially along foothills near waterways and lowlands, the department said.
For sea conditions, waves in the Gulf are about 2 meters high and above 2 meters high in thundershowers, while those in the Andaman Sea are about a metre high. All ships should proceed with caution and keep away from storms, the department warned.