The UK weather services issue an expanded extreme heat warning as a heatwave is forecast to bring record-breaking temperatures. Multiple outlets report that the Met Office expects temperatures to rise to around 38C in parts of the country. The warning is described as lasting for four days, with heat conditions potentially continuing at least until Thursday. News reports also note that the spell could threaten records for June, with the hottest conditions expected across broad areas rather than isolated locations.

Some outlets frame the update as an extension or expansion of an earlier warning, indicating that forecasters adjust the expected timing and severity as the heatwave approaches. In addition to the headline temperature figures, at least one report highlights that certain areas may also be subject to health-related guidance, reflecting concerns about the risks of high temperatures for vulnerable groups. Overall, the sources agree the key development is the Met Office’s multi-day warning and the prospect of peak temperatures near 38C.