Which six warnings have Beijing issued?

From August 12 to August 13, there will be a large-scale heavy rainfall process in the north, and the strongest rainfall, local rainstorm or heavy rainstorm will occur in Beijing, Tianjin and Hebei. In response to this heavy rainfall, on June 2, Beijing 1 1 municipal parks and mountain scenic spots were closed, and six early warnings of rainstorm, lightning, geological disasters, flash floods, strong winds and floods were issued.

1. Beijing Meteorological Observatory released yellow rainstorm warning signal on August 01/7: 40: It is estimated that there will be heavy rain to heavy rain in this city from 08: 00 on August 12 to 08: 00 on August 13, with local heavy rain, and some areas may have hourly rain intensity of more than 50 mm.

2. The Beijing Municipal Planning and Natural Resources Commission and the Municipal Meteorological Bureau jointly issued the yellow warning of meteorological risk of geological disasters 1 1 at 20: 00 on August 20th. In the next 48 hours, the risk of geological disasters such as mudslides, collapses and landslides in the mountainous areas of this city is high, so please pay attention to prevention.

3. The Municipal Water Affairs Bureau and the Municipal Meteorological Bureau jointly issued a flash flood risk warning at 22: 00 on August 1 1 day. It is estimated that from 8: 00 on August 12 to 8: 00 on June 13, the risk of mountain torrents in Fangshan, Mentougou, Changping, Yanqing, Huairou, Miyun and Pinggu in this city is high, reminding the general public to stay away from mountainous rivers and valleys and ensure their own safety.

4. The Municipal Hydrological Station issued a blue flood warning on August 2nd 1 1. According to the weather forecast, there will be heavy rain in Japan from 12 to 13. It is predicted that the main tributaries of Fangshan Juma River, Dashi River, Huairou Huaisha River, Huaijiu River, Pinggu River, Miyun Baihe River, Chaohe River, Urban River, North Canal and so on may have obvious flood processes, and there are risks such as flooding, jacking and drainage. Please stay away from the river to ensure your own safety.

5. The Municipal Meteorological Observatory issued the yellow lightning warning signal 1 1 at 0: 25 on August 2, 3. It is estimated that there will be obvious lightning activity and short-term heavy rainfall in this city at 05: 00, accompanied by a short-term strong wind of magnitude 7 and local hail. Please take preventive measures.

6. The Municipal Meteorological Observatory issued a blue gale warning signal at 03: 40 on August 2, 65438: It is expected that there will be a short-term gale of magnitude 8 in this city at 05: 00 on August 2, so please take precautions.

Beijing has issued six early warnings. What's going on here?