John Fish presenting the weather
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BBC forecasts: 40 years since weather symbols introduced

16 August 2015 Last updated at 09:11 BST

It is 40 years since weather symbols were introduced to BBC forecasts.

They were designed to give viewers a clearer understanding of what weather was on the way.

Over the years the style and technology of forecasting has changed considerably.

BBC Weather's John Hammond has been looking at the archives.