coded warning system that has been introduced by the new. they say we are expecting more heatwaves more often, and they are going to be more intense. to explain more of what an amber warning means is clearfrom the met office. what is the difference between a yellow and amber weather warning, because it was escalated on thursday? its, amber weather warning, because it was escalated on thursday? a yellow warnin: was escalated on thursday? a yellow warning once was escalated on thursday? a yellow warning once health was escalated on thursday? a yellow warning once health professionals . warning once health professionals that vulnerable people could be impacted by this higher heat and hi-h impacted by this higher heat and high humidity. it is now ramped up toan high humidity. it is now ramped up toanarnber high humidity. it is now ramped up to an amberacross high humidity. it is now ramped up to an amber across more southern areasi to an amber across more southern areas, meaning th