Europe's Escalating Heat Danger
Red Danger-to-Life Heat Warnings Cover UK Regions; Italy’s Heatwave Emergency Escalates
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Italy’s Ministry of Health bulletin specifies the 12 “red” cities on Monday (including Bologna, Bolzano, Brescia, Florence, Frosinone, Milan, Perugia, Pescara, Rieti, Rome, Turin and Verona) and says the coverage is for 27 urban centers overall. It adds that Venice, Viterbo and Ancona move into “red” on Tuesday, with Latina joining on Wednesday.
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In England, UKHSA’s “danger to life” red heat-health alert is scheduled to run from 1am on Wednesday (June 24) to 11pm on Thursday (June 25) covering East Midlands, West Midlands, South East, South West, East of England and London. UKHSA also says heat-health alerts are issued when “severe impacts” are expected across health and social care—citing risks including hot indoor care settings, increased demand on services and “national critical infrastructure failures, such as generators and power outages.”
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North Wales forecasts include sharp local variation: Wrexham is expected to reach 34C at 4pm on Wednesday (and 37C at 4pm on Thursday), while Amlwch is forecast to be “relatively cooler” with temperatures around 22C on Wednesday. Forecasters also warn that if temperatures hit at least 25C for three consecutive days, it will mark the second official “heatwave” of the year for North Wales.
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Wales’ Met Office red extreme heat warning is scheduled for the period Wednesday 09:00 BST to Thursday 21:00, with amber heat-health alerts extended from two to four days across all of Wales. The Met Office warns overnight temperatures are unlikely to drop far from “high teens” and that some places may not fall below 20–21C, while also urging people to avoid midday sun, limit exercise and stay hydrated; the RSPCA separately advised pet owners to take extra care.
A dangerous heat dome has settled over Western Europe, pushing the UK into a rare June emergency. The Met Office and UK Health Security Agency have placed six English regions under a "danger to life" red heat-health alert from 1am Wednesday to 11pm Thursday, with temperatures forecast to peak at 39°C to 40°C — levels that would shatter all June records. Westminster Pimlico News reported the alerts cover East Midlands, West Midlands, South East, South West, East of England, and London.
Italy is facing the same crisis from the south. The country's Ministry of Health has raised its highest-level "red" alert from 12 cities on Monday to a peak of 16 by Wednesday, covering major centers including Rome, Milan, Florence, and Turin. Across the Channel, France has already recorded deaths linked to the heat, with Morning Chronicle reporting two children, aged two and four, died in the southern town of Carpentras.
Six English Regions Face Danger-to-Life Heat Alerts
The UKHSA red heat-health alert runs from 1am on Wednesday, June 24, to 11pm on Thursday, June 25. Westminster Pimlico News noted these alerts are only issued when "severe impacts" are expected across health and social care. The UKHSA cited risks including hot indoor care settings, increased demand on emergency services, and — strikingly — "national critical infrastructure failures, such as generators and power outages."
Infrastructure risk is a serious concern at these temperatures. Steel rail tracks can run 20°C hotter than air temperature. At a 40°C air reading, rails could reach 60°C and buckle. Head Topics reported that school closures and transport disruptions are already being planned ahead of the peak heat days.
Wales Braces for Red Warning and Tropical Nights
Wales is under a Met Office red extreme heat warning from 09:00 BST Wednesday to 21:00 BST Thursday. Amber heat-health alerts have been extended from two to four days across the entire country. The Met Office warned overnight temperatures are unlikely to drop below the "high teens," and some areas may not fall below 20°C to 21°C — a threshold meteorologists call a "tropical night."
The heat will not be felt equally across Wales. Wrexham, an inland town in North Wales, is forecast to reach 34°C at 4pm Wednesday and 37°C at 4pm Thursday. Coastal Amlwch, just miles away, is expected to peak near 22°C on Wednesday — a difference of 15 degrees. If temperatures in North Wales hit 25°C for three consecutive days, it will mark the region's second official heatwave of 2026. The RSPCA also issued an urgent advisory, warning that "dogs die in hot cars" and also struggle on hot pavements during midday walks.
Italy's "Charon" Heatwave Spreads to 16 Cities
Italy's Ministry of Health monitors 27 urban centers through its heat bulletin. On Monday, 12 cities sat at red — the highest level — including Bologna, Brescia, Florence, Milan, Perugia, Rome, and Turin. By Tuesday, Venice, Viterbo, and Ancona joined the list, bringing the total to 15. Latina was added Wednesday, pushing the peak to 16 red-alert cities.
Italian meteorologists have named this the "Charon" heatwave, after the mythological ferryman of the underworld. They say the African anticyclone driving the heat is pushing further north into the Alps than is typical even for July, let alone June. The Ministry of Health warned that red status signals risks not just to the elderly, but to "healthy and active people" as well.
What Authorities Are Telling the Public to Do Now
Health officials across both countries are urging the same core steps: avoid the sun between 11am and 3pm, limit strenuous exercise, drink water regularly, and check on elderly or vulnerable neighbors. The humidity accompanying this heat makes things worse. It reduces how effectively the body cools itself through sweating, putting extra strain on the heart and lungs.
The UKHSA specifically warned of risks to care home residents in buildings without air conditioning. Temporary relocation of residents may be needed in some cases. Head Topics noted that the UK's housing stock remains largely "built for the cold," with poor insulation and no shutters — features that trap heat rather than block it. Officials say this makes preparation and early action critical before Wednesday's peak arrives.
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