NORTH ATLANTIC OCEAN, Earth - August 17, 2017: A massive bank of cloud from a low pressure system moving over the British Isles captured by the NASA MODIS satellites Aqua and Terra on August 16, 2017 . The UK Met Office has forecast heavy, perhaps thundery showers for northern Scotland (with a yellow rain warning issued for Friday) and showers and sunny spells for most of the rest of the UK until Saturday - Picture by Atlas Photo Archive/NASA *NB Latest data available