The weather in London and Rio de Janeiro couldn't be more different, so why are Brazilian officials visiting Britain's weather agency?
That's because every Summer Olympics needs good forecasting no matter which country is host. Rio has the 2016 Games.
Marcia dos Santos Seabra from Brazil's National Institute of Meteorology has been observing the Met Office operation at London's Olympic sites and says she's been "very impressed."
Games officials depend heavily on good weather forecasts. Andy Murray's gold medal win against Roger Federer, for example, went ahead on Wimbledon's Centre Court with the roof off after the Met Office predicted a dry spell after a morning of rain.
— Sheila Norman-Culp — Twitter — http://twitter.com/snormanculp
EDITOR'S NOTE — "Eyes on London" shows you the Olympics through the eyes of Associated Press journalists across the 2012 Olympic city and around the world. Follow them on Twitter where available with the handles listed after each item.