The Thai Meteorological Department warns of heavy rain, strong gusts and flash floods in the central, eastern and southern regions, with Bangkok and surroundings at 60% thunderstorm coverage. Heavy rain continues 18-20 Oct in the south and east, and rain increases 21-25 Oct across Bangkok, the central region and the east. Low-lying shops and warehouses should move stock off the floor, and deliveries and site work should allow for delays. Boat operators should avoid storm areas, with waves over 2 m in the Andaman Sea and Gulf of Thailand.