There is a 90 % probability of Heat-Health criteria being met between 1200 on Thursday and 0900 on Sunday in parts of England. An update will be issued when the alert level changes in any region. Alerts are issued once a day by 0900 if required and are not subject to amendment in between standard issue times.
Note that the details of the forecast weather are valid at the time of issue but may change over the period that an alert remains in force. These details will not be updated here unless the alert level also changes,
the latest forecast details can be obtained at the following link: http://www.metoffice.gov.uk/public/weather/forecast/#?tab=map
Level 3 - Heatwave Action https://www.metoffice.gov.uk/public/weather/heat-health/#?tab=heatHealth