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Mystery #1Tier 2weather / forecasting

How can anyone possibly know what the weather will do tomorrow?

A forecaster stands in front of a map and says it will rain tomorrow afternoon, and often they get it right. But tomorrow hasn't happened yet, and nobody can see the future. So how can anyone possibly know what the weather will do tomorrow?

Rows of tall black supercomputer cabinets filling a weather forecasting machine room
Photo: NOAA Photo Library · CC BY 2.0 · via Wikimedia Commons

Your guess

What's your hunch? How could anyone work out what the weather will do tomorrow?

There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.

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