Weather experts are warning of potential risk to elderly people as a period of below-average temperatures is set to last for the week. A Met Office and UK National Health Agency amber cold-health warning for Kent as well as the rest of the South East and London will remain in place until midday on Friday. It comes after snow fell across Kent yesterday, bringing with it hazardous icy conditions in places. The UK Health Security Agency and Met Office say vulnerable people including the elderly, very young, pregnant women and anyone with long-term health conditions are at increased risk of fallin…