Rhybudd coch am wres eithafol i rannau o Gymru am y tro cyntaf (opens original article in a new tab)

The Met Office issued a red extreme heat warning for parts of Wales on Wednesday and Thursday, with temperatures potentially reaching 38C-40C, affecting the entire population.

• The Met Office issued a red warning for extreme heat in parts of Wales on Wednesday and Thursday
• Temperatures could reach between 38C and 40C in some areas
• The extreme heat warning affects the entire population, not just the most vulnerable