Outbreaks of summer thunderstorms are predicted over the North, Northeast, Central and East of Thailand between March 31 - April 4 when another high pressure from China will extend to cover upper Thailand and the South China Sea, the Meteorology Department said in its forecast on Thursday.
Thundershowers, gusty winds and hail are possible in some areas, followed by a temperature drop.
From March 31 to April 1, summer thunderstorms are expected in the Northeast, particularly in the provinces of Udon Thani, Nong Khai, Bung Kan, Nakhon Ratchasima, Buri Ram, Surin, Si Sa Ket and Ubon Ratchathani.
During April 1-2, there will be more thunderstorms in the North, Northeast, East and Central regions, including Bangkok and its vicinities.
Outbreaks of rainfall will occur in much of the South on April 1-4, with moderate sea of about two metres high. All vessels are advised to proceed with caution.