A low sun blazing over a city skyline in a heat haze

EventsChallenge 05 · Charity · patient safety

Ahead of the Heat

Turn official heat-health alerts into timely, personal safety notifications that protect brain-injury survivors.

Apply for a place Eventbrite tickets — link coming soon
before the heat-alert season
May 2027
alert season, England
1 Jun – 30 Sep
health data, minimised
Consent

01 — The problem

When the heat rises, who is at risk?

Heatwaves are getting more frequent and intense, and adults living with acquired brain injury can be especially vulnerable: fatigue, medication and difficulty recognising or responding to heat all raise the risk. The UK already runs an authoritative early-warning system aimed at exactly this.

But a regional colour-coded alert does not tell a small charity who among its clients is most at risk today, or what to do. The signal exists; the personal, timely action does not. The gap is between a national alert and a knock on the right door.

01

National alert, local gap

A regional yellow, amber or red alert is not a plan for a named, at-risk client.

Why this is hard
REGION ? ONE PERSON RIGHT SCALE TO PLAN, WRONG SCALE TO ACT

Heat-health alerts are issued for regions, which is the right scale for planning services and the wrong scale for one person. Between the alert and the individual sits the question of who, specifically, needs something done today.

02

Vulnerable people, high stakes

Survivors may not self-identify heat risk; carers cannot watch everyone at once.

Why this is hard
MAY NOT RAISE IT CANNOT WATCH ALL AT ONCE

The difficulty is about who notices. If the person most at risk may not raise it themselves, then the warning has to reach somebody who can act on their behalf — and a carer supporting many people cannot watch them all at the same time.

03

Small charity, big duty

Limited technical capacity — but a real duty of care when a heatwave hits.

Why this is hard
CAPACITY DUTY OF CARE DOES NOT SCALE WITH THE TEAM

A duty of care does not scale with the size of the technical team. A small organisation carries the same obligation to act on a warning as a large one, with far less to act with.

02 — The question

How might a warning issued for a whole region reach the individual people most at risk from it, while there is still time to act?

The question deliberately does not say what an answer looks like. A build, an analysis, a design or a shared standard can all answer it — see the four tracks.

A warning issued for a region; the risk sits with individual peopleOn the left, one alert is issued for a whole region. On the right, the people inside that region, of whom only some are at high risk. A dashed line between them marked with a cross stands for the route from the regional warning to the individual person, which does not exist. Along the bottom, a time bar runs from the warning being issued to the heat arriving, bracketing the window in which acting is still useful. WHAT IS ISSUED A REGION ONE ALERT WHO IS ACTUALLY AT RISK FILLED = AT HIGHER RISK. THE ALERT DOES NOT KNOW WHICH. NO ROUTE FROM REGION TO PERSON WARNING ISSUED HEAT ARRIVES THE TIME TO ACT
Fig. 1 — the warning is issued for a region; the risk sits with particular people, and the time to reach them is bounded.

03 — The mission

From a regional alert to a knock on the right door

Build an ethical prototype that ingests official heat-health alerts and turns them into timely, personalised safety notifications and a simple staff view — so a small charity can reach the service users most at risk before a heatwave bites, and act.

What good looks like

  1. 1Safety impactDoes it reach the right people in time?
  2. 2ClarityUsable by busy support staff and clients?
  3. 3IntegrationJoins official alerts with the charity’s knowledge?
  4. 4Responsible useConsented, GDPR-safe; supports, not replaces, care?
  5. 5FeasibilityCould a small charity run it each summer?

Five criteria, equal weight.

04 — The data

The official alerts and data you will use

Heat-Health Alerts are issued by UKHSA with the Met Office; the season runs 1 June to 30 September.

DatasetWhat it isLicence
UKHSA Heat-Health AlertsOfficial colour-coded alerts (green to red) for England — dashboard and email feed.Free · UKHSA
Met Office weather dataForecast temperatures, heatwave thresholds and severe-weather warnings.Free / open
Adverse Weather and Health PlanThe national plan for what to do before and during a heat alert.Public guidance
Charity service knowledgeClient needs and contact preferences, held with consent by the charity.Consent-held
Open notification toolingSMS, email and app channels to turn an alert into a personal message.Open source

Open data repository on GitHub (opens external site) No account needed to browse

Take part in 05

Late May 2027. 100 places, free to enter, open to all ages — some ages may need parental consent. Bring a team or form one on the day — no prior coding needed.