The Met Office has this morning (Thursday) issued a warning of possible severe thunderstorms with large hailstones and lightning in the Hertfordshire and Essex region.The yellow "be aware" alert was issued at 10.14am and relates to the period from 7pm on Friday (July 3) to noon on Saturday (July 4).The national weather service says that isolated heavy, and possibly severe, thunderstorms are expected to develop on Friday evening.Some torrential downpours are possible, leading to...
