Core Points - The 15th National Games opening ceremony will take place at the Guangdong Olympic Sports Center on the night of the 9th, with favorable weather conditions expected [1][3] - A weak cold air mass will influence Guangdong over the next week, leading to slight temperature fluctuations, primarily cloudy to sunny weather [1] - The peripheral circulation of Typhoon "Phoenix" may bring precipitation on the 12th and 13th, necessitating advance preparations [1] Weather Monitoring - The venue features white cylindrical facilities, which are micro weather stations deployed by meteorological departments to capture real-time changes in temperature and humidity [5] - Various types of radar and meteorological monitoring stations are deployed outside the venue to gather data on low-altitude winds and atmospheric conditions, presented in a three-dimensional format within the intelligent weather service system for the Games [7] - A public service tool named "Sui Xiao Tian" has been launched, integrating all venue data and event schedules, providing real-time weather information and forecasts tailored to specific venues and events [10]