What do you think of the weather forecast time? For example, the precipitation from 08: 00 to 08: 00 on May 24th is ... and the precipitation from 20: 00 to 20: 00 is. ......

Precipitation refers to the precipitation in a certain area over a period of time, including evaporation, infiltration and solid ice and snow. Usually, the time interval for measuring or forecasting weather is 24 hours. For example, 08~08 on 24th refers to 08 am on 24th to 08 am on 25th.

The forecast is based on various meteorological factors, such as cloud water content, wind direction, wind speed and temperature. Estimate the weather in a specific place (such as Beijing) (is it sunny? Is it cloudy? Will there be precipitation? How much will it drop? )。 Because these factors will change at any time, there will be a saying that the weather forecast is inaccurate. If today's "weather forecast" predicts yesterday's, it is meaningless and can't be said to be a "forecast".

For example, there are saturated clouds (water vapor) passing through Shijiazhuang today. According to the wind speed and direction, it may arrive in Beijing tomorrow. If we want to forecast the precipitation in Beijing tomorrow, we should consider that this cloud can reach Beijing. According to other meteorological data (such as air humidity, etc. ), see how many degrees the temperature in Beijing may reach tomorrow, and whether precipitation can form. If so, how many?