Britain will endure intense rainfall over the coming days along with thunderstorms, lightning, gusty winds and hail as temperatures soar to 30C.
The Met Office has activated three yellow thunderstorm warnings for parts of England, Wales and Northern Ireland, running between tomorrow and Saturday.
And with the mercury rising towards Friday, the UK Health Security Agency has issued the first heat-health alert of the year which covers three regions of England.
The UKHSA's yellow alert is in place from 9pm tomorrow until 8am on Sunday and covers the East of England, the East Midlands, London and the South East.
Under UKHSA and the Met Office's Weather-Health alerting system, a yellow alert means there could be an increased use of healthcare services by vulnerable people.
