The high temperatures are expected to have significant impacts on health and social care services, with a rise in deaths, particularly among those aged 65 and over or with health conditions. In East Lancashire, temperatures are set to reach highs of 27C with clear skies and sunshine forecast all day. The forecaster has issued the warning for London and parts of the South East, East Midlands, East of England, West Midlands and South Yorkshire from 9am to midnight on Thursday as temperatures are to climb to 37C or 38C in some places. The Met Office warning highlights the likely health impacts of the latest spike in temperatures, as well as the risk of incidents in open water, travel disruption and the potential for power cuts. Amber health heat alerts are already in place for most of England including the Midlands, South East, North West and South West, and a yellow alert is in force for the North East from Tuesday morning until Friday evening.