How can weather forecast more or less accurately predict weather and temperature two weeks in advance?
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By using historical data to make very well educated guesses.
Seriously, the entire field of meteorology is very much a “educated” guess kind of field.
Essentially, weather stations have been collecting weather data across the world for decades, temperatures, pressure conditions, wind speeds, precipitation, etc etc.
And nowadays we are lucky enough to have very powerful computers. So we take aaaallllll that data we have collected and use it to make a model.
Which to put it simply is just saying “okay, hear are the current weather conditions at this locations and and two dozen surrounding locations, compare these current conditions to what has happened in the past, and then if something like this has happened before in the past, tell me what happened after it in the past so I can guess what is going to happen in the future now.
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