The Times reports this morning that Bournemouth business leaders are hugely annoyed with the BBC, whose weather app predicted thick cloud and thunderstorms for the recent bank holiday. In the event, it was sunny and warm, but the damage had already been done, and takings on the seafront were said to be down by nearly 40 percent as people decided to stay at home rather than risk a soaking.
While weather forecasting is undoubtedly getting better, it seems fairly clear that ultra-local forecasts of the kind you find on weather apps can be very misleading: reducing the whole forecast to a single icon, as most apps do, removes all the nuance. The lesson seems to be that if you are going to make a decision based on a forecast, you should watch the TV weather and get it explained to you.
However, another problem with weather apps is the ultra-local nature of the forecast, which implies a level of accuracy that weather models just can’t give.
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