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UK Heatwave Alert: Spot Danger Signs Now
22 Jun
Summary
- Recognize eight heat exhaustion and six heatstroke symptoms.
- Heat exhaustion needs cooling within 30 minutes to avoid heatstroke.
- Heatstroke is a medical emergency requiring immediate 999 call.

The UK Health Security Agency (UKHSA) has released detailed instructions for staying safe during impending high temperatures. The guidance highlights eight common symptoms of heat exhaustion and six for heatstroke, emphasizing the importance of early recognition. Heat exhaustion typically occurs when the body overheats and can usually be managed by cooling down within 30 minutes without requiring emergency medical attention. However, failure to cool down can lead to heatstroke, a dangerous condition where the body's temperature rises to critical levels. Symptoms of heatstroke, such as confusion and hot, dry skin, signify a medical emergency that necessitates an immediate call to 999, followed by cooling efforts. The Met Office predicts temperatures will rapidly increase, reaching up to 34°C in southern England on Monday. By Tuesday, highs are expected to reach 37°C in southern England and 35°C in southeast Wales, with the peak of the heatwave anticipated for Wednesday and Thursday, potentially hitting 38°C. Overnight, widespread 'Tropical Nights' with temperatures not dropping below 20°C are forecast, particularly in urban areas of southern England.