A report out today claims that replacing Heathrow with a new hub airport would leave passengers, taxpayers and business worse off. It says a third London airport runway is essential if capacity is to be increased.
The study will be presented as evidence to the Airports Commission and argues against a new airport in the Thames Estuary, Isle of Grain or Stansted.
Earlier we spoke to John Holland-Kay, development Director at Heathrow.
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A windy but mostly dry start with the best of the bright spells towards the south east. Becoming cloudy with heavy showers later
Very windy with heavy rain moving east tonight. Becoming drier but staying windy later. Then sunny spells and strong winds tomorrow
Heavy rain and strong winds this evening. The rain will clear tonight but staying windy, especially along the coast