Heat Advisory Issued for NYC and Northeast as 100M Americans Face Dangerous Heat

A heat dome is moving east across the United States this week, putting more than 100 million Americans under heat alerts. Multiple western cities set all-time temperature records on Sunday, with Salt Lake City reaching 109 degrees and Billings, Montana hitting 111 degrees. Heat advisories are now in effect for New York City and surrounding areas from noon Tuesday through 9 p.m. Wednesday, with heat index values expected to reach 95 to over 100 degrees.

Record-breaking heat shatters western cities

Western cities experienced their hottest temperatures ever recorded on Sunday. Salt Lake City reached 109 degrees, breaking its previous all-time high of 107 degrees set in 1960, 2002, 2021, and twice in 2022. Billings, Montana hit 111 degrees, shattering its previous record of 108 degrees from July 14, 2002. Miles City, Montana recorded 115 degrees, surpassing its prior high of 111 degrees from June 26, 2012. Temperatures across the region ran 20 to 30 degrees above normal for mid-July.

Heat advisory spreads to Northeast through Wednesday

A heat advisory is in place from noon Tuesday to 9 p.m. Wednesday for New York City and surrounding areas. Feels-like temperatures will range from 95 to over 100 degrees, with Wednesday designated a First Alert Weather Day due to extreme heat and humidity. Peak heat is expected Wednesday, though temperatures will remain hot through the end of the week. The current count of days above 90 degrees in New York City is nine so far this summer, compared to an average of 15 for the entire season.

Health risks and preparedness measures

Researchers at Johns Hopkins Bloomberg School of Public Health calculated that five days of extreme heat could cause 300 deaths and 4,000 emergency department visits in a typical metropolitan area, plus $870 million in costs from decreased productivity and health expenses. Pennsylvania recorded 1,345 heat-related illness emergency department visits between June 29 and July 5, peaking at 335 visits on July 3. CBS News reported seven heat-related deaths in Philadelphia in early July. The National Weather Service warns residents to stay hydrated, avoid prolonged sun exposure, and seek shade during peak heat hours.

Heat dome expected to linger through the weekend

The heat dome built over the Northern Plains after the first heat wave of the summer began last week. Extreme heat warnings remain in place across Utah, Montana, the Dakotas, and extending into Michigan and Minnesota through at least Thursday. The National Weather Service warns the hazardous heat will spread eastward at times while lingering in the central region through next weekend. Rain is not expected until Friday and Saturday, when thunderstorms may develop across the Northeast.

Final Thoughts

With 100 million Americans under heat alerts and multiple all-time temperature records already broken, this week poses serious health risks across the country. Residents in the Northeast should take precautions during the heat advisory period and monitor vulnerable family members.

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