What does the weather forecast percentage mean?

The percentage of weather forecast is the probability of representing the situation of the day.

Generally speaking, weather forecast is a kind of "forecast", so it involves probability, and this percentage is the probability representing the situation of the day. If it is raining or snowing, the percentage number next to the raindrop or snowflake icon represents the probability of rain or snow. For example, for the prediction of precipitation, the traditional weather forecast generally predicts whether it will rain or not, while the probability weather forecast gives the percentage of possible precipitation. The greater the percentage, the greater the possibility of precipitation.

Forecasters predict the percentage of precipitation opportunities in a certain area and a certain period of time through sorting, analysis, judgment and discussion based on various meteorological data. This is only the "probability" of forecasting precipitation, and it cannot be guaranteed to be 100%. If the probability of precipitation forecast is 60%, when arranging activities, it is mainly rainy, supplemented by no rain; The probability of forecasting precipitation is 80%, so be prepared for rain.

Weather forecast type

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.