How hot does it need to be for a heatwave to be declared?
The weather's getting hotter, but how hot does it need to be to be considered a heatwave?
The weather's getting hotter, but how hot does it need to be to be considered a heatwave?
Congestion could peak on Friday as commuting traffic will compete for road space, with at least 3.2 million drivers making leisure journeys.
July has seen rain showers, thunderstorms and blustery winds sweep across the UK.