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Heat Wave to Bring Record Highs to Eastern U.S. This Week
The National Weather Service forecasts a heat dome over the eastern two-thirds of the country with temperatures in the 100s and heat indices up to 115 F. Extreme heat warnings cover cities from Chicago to Washington, D.C., through Saturday.
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A long and dangerous heat wave will affect the eastern two-thirds of the United States this week, the National Weather Service said, with temperatures rising ahead of the July Fourth holiday and feeling hotter due to high humidity. A heat dome is expected to build over the region, bringing record highs into the 100s to New York City, Philadelphia, Baltimore and Washington, D.C., according to CBS News meteorologist Nikki Nolan.
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Extreme heat warnings are in effect for Nashville, St. Louis, Cincinnati, Kansas City, Des Moines, Chicago and Detroit. Extreme heat watches cover much of the Northeast, with temperatures over 100 degrees forecast through Saturday. Southern cities including Dallas, Little Rock and Memphis will also see dangerously high readings.
The heat wave is defined as high temperatures reaching or exceeding 90 degrees for three consecutive days or more. High humidity will push heat indices to 100-110 F, and as high as 115 F in some areas. Nightly lows in the 70s F will offer limited relief. The stagnant high-pressure pattern traps heat and raises humidity, making it harder for the body to cool through sweating.
In the West, the Four Corners area remains under dangerous fire weather conditions. Three firefighters have died and two others sustained burn injuries in fast-moving wildfires near the Colorado-Utah border. The National Fire Information Center described conditions as "extremely critical fire weather" that is rare for late June.
Severe thunderstorms continue across the northern Plains and Upper Midwest, with flooding concerns from the Rockies into the Mid-Atlantic.
The Centers for Disease Control and Prevention says heat can impact anyone. Signs of overheating include muscle cramping, dizziness, unusually heavy sweating, shortness of breath, headaches, weakness and nausea.
