Two separate warning systems now help UK residents prepare for dangerous weather – but confusion remains over when each applies and what action to take.
Weather-Health Alerts, issued jointly by the UK Health Security Agency (UKHSA) and the Met Office, target health and social care services about weather impacts on public health. These cover heat, cold and flu conditions that could strain the NHS and care systems.
The alerts use a four-tier system: Green indicates no current risk, whilst Yellow and Amber signal increasing health threats. Red warnings mean significant risk to life with widespread health service impacts expected. This framework launched in June 2023, replacing the narrower Heat-Health Alert system.
Severe Weather Warnings come exclusively from the Met Office and address immediate physical dangers to the public. These cover heavy rain, strong winds, snow, ice and fog that could disrupt travel and damage property. The three-level system – Yellow, Amber and Red – advises on practical safety measures like avoiding unnecessary journeys or securing outdoor items.
The distinction matters for residents. A Red Weather-Health Alert for extreme heat triggers emergency health service plans to protect vulnerable people. A Red Severe Weather Warning for high winds tells everyone to stay indoors due to dangerous conditions outside.
Both systems use colour coding but serve different purposes – one protects health services and vulnerable groups, the other warns of immediate physical danger. As extreme weather becomes more frequent, understanding which warning applies could prove vital for communities across Britain.