Motorists in Herts and Essex can expect difficult driving conditions on Sunday morning - with visibility possibly as low as 50m in places - as the Met Office issued its second fog warning of the weekend.At 9.05pm on Saturday night the weather service issued a yellow "be aware" alert, which applies from 12.05am to 11am on Sunday (Oct 4).Fog patches forming on Saturday evening will become locally dense by Sunday morning. Not everywhere will see fog, but where it does form, visibility is...
