The Fourth of July holiday is expected to be extremely hot across much of the United States, with nearly half of all Americans enduring sweltering heat.
Approximately 170 million people are under heat watches and advisories on Thursday, as two separate high-pressure heat domes will cause heat indexes to rise into the triple digits from California to parts of the lower Mississippi River Valley. Severe thunderstorms are also predicted in areas of the upper Mississippi River Valley, Ozarks, southern and central plains, according to the National Weather Service.
Scripps News Meteorologist Scott Withers warned that the excessive heat is expected to persist for several days and advised individuals to take necessary precautions during the July Fourth holiday to prevent heat-related injuries or illnesses.
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Symptoms of heat exhaustion include heavy sweating, cold, pale and clammy skin, muscle cramps, fatigue, and dizziness. If heat exhaustion progresses to heat stroke, it can become life-threatening. Symptoms of heat stroke include a body temperature of 103 degrees Fahrenheit or higher, hot, red or moist skin, headache, dizziness, and nausea.
It is crucial to stay hydrated and cool as the high temperatures are expected to persist for an extended period of time. Cooling centers will be available in several cities to provide relief for those in need.