What to expect
- Population-wide adverse health effects experienced, not limited to those most vulnerable to extreme heat, leading to serious illness or danger to life.
- Substantial changes in working practices and daily routines will be required
- High risk of failure of heat-sensitive systems and equipment, with the loss of power and other essential services, such as water, electricity, gas or mobile phone services
- Significantly more people visiting coastal areas, lakes and rivers, leading to an increased risk of water safety incidents Delays on roads and road closures, along with delays and cancellations to rail and air travel, with significant welfare issues for those who experience even moderate delays
- met-office-red-extreme-heat-warning-issued-2026-06-22-1030