The Meteorological Department forecasts heavy rain in parts of the Northeast and East over the next 24 hours, with flash floods and overflowing streams possible in low-lying and foothill areas. Bangkok and vicinity have a 60% chance of thunderstorms today. Seas are about 2 metres high in storm areas, so boats and marine operators should take care and avoid storm zones. If your business is in those areas, plan for possible delivery delays, flooding of stock, and reduced foot traffic on the day.