Governors Plan to Rebuke Managers of Largest U.S. Electric Grid

Republican and Democratic governors in Eastern states will send a representative to a meeting of the PJM grid, which serves 67 million people in 13 states.

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Why Humidity Makes the Temperature Feel Worse During a Heat Wave

Some hot days feel even worse thanks to high humidity, trapped heat and dew points. Cities are especially vulnerable.

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Midwest Cities Bake as Heat Wave Blankets the Central U.S.

St. Louis, Chicago and Des Moines were among the cities that saw heat indexes hit triple digits on Saturday, with the East Coast bracing for similar conditions by Monday.

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Smoke From Canadian Wildfires Approaches the Northeast

Parts of the Upper Midwest were under air quality alerts on Tuesday. The New York City region is expected to be at risk on Wednesday.

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Midwest Braces Amid Threat from Pounding Winds, Hail and Tornadoes

Officials in the Upper Midwest warned of possible power outages and closed some schools early as the storms loomed.

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Storm Stalled Over Central U.S. Brings Another Day of Rain and Flooding

More than 30 tornadoes have already swept across the region, and at least seven people were killed in three states. Much of Kentucky was under a flash flood warning.

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