Classification of weather forecast and rainstorm warning grades

Weather forecast and rainstorm warning grades are divided into: light rain, moderate rain, heavy rain, heavy rain and heavy rain.

The classification of rainstorm warning grades is in accordance with the provisions of precipitation standards, and there are two standards: 12 hours and 24 hours:

The standard of 1 and 12 hour precipitation level is: "light rain" refers to the precipitation of 0.6-5 mm; The "moderate rain" precipitation is 5.1-15 mm; "rainstorm"15.1-30 mm; "Rainstorm" is 30.1-70mm; The rainstorm is 70. 1-200mm.

The standard of 24-hour precipitation level is: "light rain" precipitation means1-10mm; The precipitation of "moderate rain" means10.1-25mm; "Rainstorm" precipitation means 25. 1-50 mm; "Rainstorm" means 50.1-100 mm; "Rainstorm" is the precipitation of 100. 1-250 mm.

Extended data:

Types of weather forecast:

1, short-term forecast. According to the radar and satellite detection data, the local strong storm system in the future 1 ~ 6 hours is monitored and predicted.

2. Short-term forecast. Forecast the weather in the next 24 ~ 48 hours.

3. Medium-term forecast. Forecast for the next 3 ~ 15 days.

4. Long-term forecast. Refers to the forecast from 1 month to 1 year.

5. Ultra-long-term prediction. The forecast time limit is 1 ~ 5 years.

6. Climate outlook. 10 years old or older.

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