Types of weather forecast

That is, according to the aging length of weather forecast, it is divided into:

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.

The statistical method is mainly based on the deviation between the monthly average of meteorological elements and the multi-year average. The method of long-term forecasting by numerical forecasting method is being tested and some progress has been made. The forecast time limit of 1-5 years is called ultra-long-term forecast, and the forecast time limit of 5 years and above 10 years is called climate outlook. According to the area covered by the forecast, the weather forecast can be divided into:

1. Large-scale forecast. Generally speaking, it refers to global forecast, hemispheric forecast, continental or national forecast. Mainly produced by World Meteorological Center, Regional Meteorological Center and National Meteorological Center.

2. Medium-term forecast. Often refers to the provincial (district), state and regional forecasts, which are made by provincial, municipal or state meteorological stations and regional meteorological stations.

3. Small-scale forecasting. Such as the forecast of a county, city, reservoir, airport, port, etc. These forecasts are made by the local weather station.