By Antony Clements-Thrower Millions of Brits have been warned of eleven hours of rain hell on its way today as urgent yellow warnings remain in place until this afternoon. Today’s alert came into effect at 3am this morning and stretches across the length of the southern areas of the country. Lasting until 5pm, it covers London, southeast England, east England, East Midlands. There’s a second alert for rain in effect for southwest England and Wales that lasts until 2pm. The horrendous conditions could possibly bring flooding to homes and businesses, as well as spray on roads which could bring n…