Weather-Health Alert System User Guide
Summary
UKHSA published a user guide for the Weather-Health Alert system, operated jointly with the Met Office to issue Heat-Health Alerts (June 1 to September 30) and Cold-Health Alerts (November 1 to March 30). Users must register on the system specifying their government region to receive alerts, which are triggered by joint dynamic risk assessments when weather episodes are forecast to impact health. Alerts communicate risk to NHS England, the government, and the public health system, with advice sent to health and social care professionals working with at-risk groups.
“Weather-health alerts are issued by UKHSA in partnership with the Met Office.”
About this source
GovPing monitors UK UKHSA for new healthcare & life sciences regulatory changes. Every update since tracking began is archived, classified, and available as free RSS or email alerts — 13 changes logged to date.
What changed
UKHSA published a new user guide describing the Weather-Health Alert system operated in partnership with the Met Office. The system issues Heat-Health Alerts during summer (June 1 to September 30) and Cold-Health Alerts during winter (November 1 to March 30), based on joint dynamic risk assessments of weather forecasts and health impact evidence. The document does not create new compliance obligations but explains the operational framework for the existing alerting system.
Health and social care organisations, particularly those working with at-risk populations, should register for the Weather-Health Alert system to receive notifications for their relevant government region. Public health authorities and NHS England will receive communications triggered by alerts at appropriate response levels, though this is an existing operational protocol rather than a new requirement introduced by this guide.
Archived snapshot
Apr 23, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Guidance
Weather-Health Alert system user guide
Weather-health alerts are issued by UKHSA in partnership with the Met Office.
From: UK Health Security Agency Published 22 April 2026 Get emails about this page
Documents
Weather-health alerting system user guide
Ref: GOV-18238
PDF, 816 KB, 28 pages
Details
During the summer and winter seasons, UKHSA and the Met Office monitor the weather forecasts and where episodes of hot or cold weather are identified using predefined evidence-based considerations, a joint dynamic risk assessment is carried out and the appropriate alert issued.
Users need to register for the Weather-Health Alert (WHA) system where they can specify the government region they wish to receive alerts for.
The Heat-Health Alert (HHA) operates from 1 June to 30 September and the Cold-Health Alert (CHA) operates from 1 November to 30 March.
An out-of-season alert may still be issued if impacts from adverse weather on health (heat or cold) are expected.
Depending on the level of alert, a response is triggered to communicate the risk to NHS England, the government and the public health system.
Advice and information are sent to the public and health and social care professionals, particularly those working with at-risk groups, after an alert is issued or updated.
Published 22 April 2026 Get emails about this page Print this page
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Source document text, dates, docket IDs, and authority are extracted directly from UKHSA.
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