Britain faces an ‘explosive’ autumn kick-off as September climaxes with yo-yoing temperatures, wind, rain and a potential storm. Meteorologists are agonising over conflicting forecasts of torrential downpours followed by an Arctic plunge ahead of a brief calm which will be shattered by a ‘cyclonic’ assault. The jet stream, Britain’s weather marshal, will fracture leaving a powerful ‘jet streak’ whipping up trouble to the south. This could strengthen stormy weather systems in the Atlantic, steering them towards the UK later this weekend. Met Office meteorologist Alex Deakin said: “As we go into…
