7/29 - 80 Million Americans In 20 States Were Under Excessive Heat Warnings; That's W. 2F Of Warming

[hatrack]

Nearly a quarter of the U.S. population was covered by heat warnings or advisories issued by the National Weather Service on Thursday, as sweltering temperatures stretched in a band of misery that included parts of 20 states from Washington to Florida.

Among the places forecast to experience near triple-digit temperatures on Thursday: Kansas City and St. Louis at 99 degrees, Memphis at 98 degrees and Charlotte, N.C., at 96 degrees.

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The level of heat and humidity at which the Weather Service issues excessive heat warnings and advisories varies from place to place, depending on local conditions. But both signal that temperatures are predicted to be dangerous enough to trigger potential health problems, such as heat stroke, that can be fatal.

The Pacific Northwest, where a high-pressure “heat dome” shattered temperature records and led to hundreds of deaths a month ago, was expected to again experience triple-digit temperatures on Friday and into the weekend. Most cities in the region won’t get quite as hot as they did in late June — and Seattle will be mostly spared, forecasters said — but parts of southern Oregon could reach 110 degrees.

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https://www.nytimes.com/live/2021/07/29/us/climate-change