The Met Office has issued an amber weather warning as Britons brace for flooding and stormy conditions. A yellow weather warning for rain remains in place for the north of England, the Midlands and Wales. Thunderstorms are expected to hit with a yellow weather warning issued for the south coast. The amber warning remains in place until 12pm tomorrow for northern Wales and north west England. The Met Office said: “Rain becoming heavy and persistent during Wednesday afternoon before easing during Thursday morning. The heaviest rain is expected over north facing hills and where strong winds will …