UKHSA issues Bbc London Weather alert as 33C forecast Monday

london weather turned hotter on Friday as the UK Health Security Agency put extraordinary heat-health alerts in place across parts of the Midlands, eastern and south-east England. The yellow alerts run from 09:00 BST Friday to 17:00 Wednesday, with bank holiday Monday now forecast to bring temperatures near 33C in south-east England.

Dr Anya Gopfert, a consultant in public health at UKHSA, said: "This first heat-health alert of the summer season is an important reminder that sustained periods of warm weather can pose a real risk to the most vulnerable." The agency said the alerts suggest some minor impacts to health and social services, with many areas expected to enter official heatwave thresholds over the next few days.

Midlands and South-East England

The alert area covers parts of the Midlands, eastern England and south-east England. Local temperatures in the south Midlands and south-east England could reach 30C by Sunday, before the warmest conditions build further into bank holiday Monday.

For many parts of England and Wales, temperatures are expected to rise into the mid to high twenties over the weekend. The forecast also points to high UV levels in many places because of the sunshine.

May record in 1944

Bank holiday Monday could bring the hottest May day on record. The current highest recorded May temperature is 32.8C, set in 1944, and forecasters say south-east England could approach 33C.

The alert is unusual because heat-health alerts are usually issued between 1 June and 1 September, while UKHSA normally issues them during its core season of 1 June to 30 September. Health and social care services in the alert areas now have several days to prepare for hotter conditions before the warning ends on Wednesday afternoon.