Friday July 23, 2021, 11:52 PM Summer weather July 21st 2021 Credit: PA Wire/PA Images Thunderstorms could cast a shadow over plans for a summer weekend of camping, festival-going or lazing on the beach. The Met Office has said that the heatwave will be replaced with unsettled and thundery conditions for southern and central areas, with yellow weather warnings in force. A thunderstorm warning is in place until 10pm on Saturday, with the possibility of heavy rain that could cause disruption and flooding. (PA Graphics) Credit: PA Graphics The warning covers southern England and Wales, potentially disappointing anyone who hoped for a dry, sunny trip to the coast.