A heat dome has settled over the southwest and Texas, bringing hazardous conditions to tens of millions of Americans. More than 23 million people were under some form of heat advisory or warning, with major and extreme levels of heat risk in parts of the region. Record-breaking temperatures were expected in Arizona, New Mexico, and Texas, with cities like Phoenix reaching 112 degrees and Houston experiencing heat indices up to 116 degrees.
The heat wave also impacted the Southern Plains, with temperatures in the upper 90s and triple digits expected to continue through the week. The Electric Reliability Council of Texas reported record power demand as the state’s grid was pushed to its limits. Heat-related illnesses were a significant concern, with heat stress being the leading cause of weather-related deaths.
The World Health Organization highlighted the increasing frequency and intensity of heatwaves due to climate change. Heat-related deaths and illnesses are preventable, but about 1,220 people die from extreme heat in the United States each year. In severe cases, heat-related illnesses can lead to heat exhaustion or heat strokes. The CDC advises staying in cool environments, hydrating with water, and seeking medical attention if symptoms persist or worsen.
A heat dome occurs when a region of high pressure traps heat over an area for days to weeks. This can create stagnant, hot air that feels like an oven and poses risks to people, crops, and animals. The heat dome in the southwest and Texas has led to scorching temperatures and dangerous conditions for millions of people.
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