Summer storms and hail forecast across multiple regions

The Meteorological Department forecasts summer storms and hail in many regions at the start of the week, due to cold air from China mixing with hot weather. Affected areas include the North, Northeast, Central Plain, East, and upper South. Temperatures are expected to drop by five to eight degrees Celsius in the Northeast and two to four degrees in other regions from Tuesday to Thursday. Stronger winds will also bring increased rainfall, with heavy downpours likely in the South. Waves in the lower Gulf of Thailand may reach two to three meters, while the upper Gulf and Andaman Sea could see waves over two meters. Small boats are advised to stay ashore in the lower Gulf and avoid the Andaman Sea.