In summer 2026, a persistent heat dome brought dangerous, record-challenging heat to the Western United States — forecast highs of 118°F in Phoenix and 126°F i…
Severe, prolonged heat struck the US Great Plains through the 1930s, peaking in 1934 and especially 1936, coinciding with a multi-year drought and widespread dust storms…
A prolonged summer heatwave and drought affected the UK from June through August 1976, prompting the appointment of a 'Minister for Drought' and the installation of stan…
An exceptional heatwave struck Western Europe in August 2003. France's national health institute recorded 14,802 heat-related deaths, and researchers estimate more than…
A severe heatwave affected western Russia through summer 2010, with Moscow recording its hottest temperature on record (39°C) and a national record of 44°C at Ya…
A historic heat dome struck the Pacific Northwest from June 25 to July 1, 2021. Lytton, British Columbia, recorded 49.6°C on June 29 -- an all-time Canadian record -…
On July 19, 2022, Coningsby, Lincolnshire, reached 40.3°C -- confirmed by the Met Office through full quality control. It was the first time 40°C had ever been o…
Multiple major heatwaves affected Southern Europe, North America and Asia across 2023, 2024 and 2025, with several years ranking among the warmest globally observed sinc…
UKHSA issued its first amber heat-health alert of 2026 from May 22-27, covering the West Midlands, East Midlands, East of England, South East and London, opening a summe…
UKHSA issued a red heat-health alert -- the system's highest level -- from June 24-25, 2026, covering the West Midlands, East Midlands, South East, South West, London an…
A heat dome intensified over the Western US from late July into early August 2026, with forecast highs of 118°F in Phoenix, 115°F in Las Vegas and 126°F in D…
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