Weather apps: Why showers can wreck their forecasts
The weather in Wales is warming up after a damp and cold start to May.
But whether it is fine or foul, a reliable forecast is essential to making the most of your plans.
Weather apps promise convenient, local information.
But does what they say always happen? BBC Wales weather forecasters Derek Brockway and Sabrina Lee explain.
Filmed and edited by Michael Burgess
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