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NEW YORK<\/strong> \u2013 As of Sunday, June 22, 2025<\/strong>, a dangerous heat dome<\/strong> continues to smother the eastern half of the United States<\/strong>, with tens of millions<\/strong> enduring another day of oppressive temperatures<\/strong> and soaring humidity<\/strong>. The scorching air mass, driven by a persistent high-pressure system<\/strong>, shows no signs of easing<\/strong>, and forecasts indicate that more record-breaking heat<\/strong> is on the way.<\/p>\n By early Sunday morning<\/strong>, temperatures had already climbed above 80\u00b0F (26.6\u00b0C)<\/strong> in cities like Chicago<\/strong>, setting the tone for another punishingly hot day<\/strong>. Across the Midwest<\/strong> and Northeast<\/strong>, heat indices were projected to surge between 100\u00b0F and 105\u00b0F (37.7\u00b0C to 40.5\u00b0C)<\/strong>, stretching from Minnesota<\/strong> to Maine<\/strong>, and affecting large areas of Arkansas<\/strong>, Tennessee<\/strong>, Louisiana<\/strong>, and Mississippi<\/strong> as well.<\/p>\n In Philadelphia<\/strong>, where the heat index was forecast to climb to 108\u00b0F (42.2\u00b0C)<\/strong> by Monday<\/strong>, the public health department<\/strong> declared an official heat emergency<\/strong> effective from Sunday noon through Wednesday evening<\/strong>. Officials activated cooling centers<\/strong> in air-conditioned public spaces<\/strong> such as libraries<\/strong> and community centers<\/strong>, and established a \u201cheat line\u201d<\/strong> where medical staff are available to respond to health concerns.<\/p>\n New York City<\/strong> faces a similarly intense forecast, with highs expected to hover near 95\u00b0F (35\u00b0C)<\/strong> on Monday<\/strong> and Tuesday<\/strong>. Conditions across the five boroughs<\/strong> will feel even hotter due to high dew points<\/strong>, raising the heat index<\/strong> significantly.<\/p>\n The blistering heat has impacted sporting events<\/strong> from Connecticut<\/strong> to Illinois<\/strong>. In Cromwell, Connecticut<\/strong>, golfers Tommy Fleetwood<\/strong> and Keegan Bradley<\/strong> were forced to compete under a heat index of 105\u00b0F (40.5\u00b0C)<\/strong> during the final round of the Travelers Championship<\/strong>.<\/p>\n On Saturday, Seattle Mariners<\/strong> pitcher Trent Thornton<\/strong> collapsed from heat stroke<\/strong> during a game against the Chicago Cubs<\/strong> at Wrigley Field<\/strong>, where the temperature peaked at 103\u00b0F (39.4\u00b0C)<\/strong>. Similarly, Cincinnati Reds<\/strong> shortstop Elly De La Cruz<\/strong> fell ill in St. Louis<\/strong> during a game against the Cardinals<\/strong>, under similar conditions.<\/p>\n In Madison, Wisconsin<\/strong>, where Saturday’s heat index hit 101\u00b0F (38.3\u00b0C)<\/strong>, the city\u2019s annual naked bike ride<\/strong> turned into a steamy, sweaty challenge. Minneapolis<\/strong> broke a record from 1910<\/strong>, recording 96\u00b0F (35.5\u00b0C)<\/strong> with a heat index of 106\u00b0F (41.1\u00b0C)<\/strong>.<\/p>\n This current weather pattern<\/strong> is being driven by a heat dome<\/strong> \u2014 a phenomenon where a strong ridge of high pressure<\/strong> traps warm, moist air near the surface, preventing any significant cooling. According to Mark Gehring<\/strong>, meteorologist with the National Weather Service<\/strong> in Sullivan, Wisconsin<\/strong>, what’s striking about this wave isn’t just the timing but the enormous geographical scope<\/strong>.<\/p>\n “It’s basically everywhere east of the Rockies<\/strong>,” Gehring said, referring to the Rocky Mountains<\/strong>. “That is unusual<\/strong> \u2014 to have this massive area<\/strong> of high dew points<\/strong> and unrelenting heat<\/strong>.”<\/p>\n As the heat shifts eastward into the new week, Washington, D.C.<\/strong> is projected to hit 100\u00b0F (37.7\u00b0C)<\/strong> by Tuesday<\/strong> and Wednesday<\/strong>. Boston<\/strong> is also on track for temperatures flirting with the 100\u00b0F (37.7\u00b0C)<\/strong> mark on Tuesday<\/strong>, exacerbated by humid conditions<\/strong> and minimal overnight relief<\/strong>.<\/p>\n In Columbus, Ohio<\/strong>, temperatures were already at 77\u00b0F (25\u00b0C)<\/strong> before 9 a.m. on Sunday<\/strong>, with highs expected to reach 97\u00b0F (36\u00b0C)<\/strong> and a heat index of 104\u00b0F (40\u00b0C)<\/strong>. Pittsburgh<\/strong> faced an even more brutal index, forecast to exceed 105\u00b0F (40.5\u00b0C)<\/strong>.<\/p>\n As the heat dome<\/strong> remains locked in place, millions across the Eastern Seaboard<\/strong>, Midwest<\/strong>, and Southern U.S.<\/strong> continue to experience the relentless intensity of this early summer scorcher<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":" NEW YORK \u2013 As of Sunday, June 22, 2025, a dangerous heat dome continues to smother the eastern half of the United States, with tens of millions enduring another day of oppressive temperatures and soaring humidity. The scorching air mass, driven by a persistent high-pressure system, shows no signs of easing, and forecasts indicate that […]<\/p>\n","protected":false},"author":18,"featured_media":4692,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4691","post","type-post","status-publish","format-standard","has-post-thumbnail","category-news"],"yoast_head":"\n<\/h3>\n
Heat emergency in Philadelphia and dangerous highs in New York<\/strong><\/h3>\n
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Sports, outdoor events strained by extreme heat<\/strong><\/h3>\n
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Air stagnates under heat dome spanning east of the Rockies<\/strong><\/h3>\n
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Washington and Boston brace for triple-digit heat<\/strong><\/h3>\n