A historic heat wave in the West was forecast to roll eastward this week after Phoenix, Las Vegas and Denver joined a plethora of cities and towns posting record temperatures and more than 50 million Americans sweltered under heat advisories.
Southerly winds will pump hot, humid air into the eastern two-thirds of the nation through Wednesday, forecaster WeatherBug warned. The result: temperatures ranging from 10 to 30 degrees above normal for this time of year.
Farther west, weekend temperatures in California’s Death Valley climbed above 120 degrees while in Phoenix, a man grilled burgers and baked a cake on his dashboard. Parts of Missouri, Kansas, Louisiana and Mississippi also saw weekend heat advisories.
Blame a northward bulge in the jet stream that unfolded over the Southwestern states this week, allowing air more typical of midsummer to spread over the region. A “drastic and intense warmup” is on tap for more of the nation this week as the jet stream lifts north, AccuWeather warned.
“A large heat dome will become more expansive over the central states, Midwest and Southeast over the next several days,” AccuWeather senior meteorologist Dan Pydynowski said.
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Cities from Chicago and St. Louis to Charlotte and Raleigh, North Carolina, could see record temperatures and triple-digit highs this week, AccuWeather said. Wichita, Kansas, will approach 100 degrees on Monday. Chicago and Indianapolis will see peak highs Tuesday.
“As heat and humidity build on Monday, a complex of severe storms may track across northern Illinois,” the National Weather Service in Chicago said. “Dangerous heat and humidity will follow Tuesday and Wednesday.”
The weather service in Nashville, Tennessee, warned of temperatures nearing 100 degrees later in the week.
“Here’s the bigger issue: Morning lows are only going to *cool* into the upper 70s with VERY humid conditions,” the service posted on Twitter. “Continuous heat like this can cause #Heat illnesses and injuries to vulnerable populations.”
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The overall weather pattern has been largely stuck in place for more than a week, which allowed heat to build across the central United States and desert southwest.
Denver reached 100 degrees Saturday, a record for the day and the earliest in the summer the city ever hit triple digits. Temperatures surpassing 100 degrees were also moving across parts of New Mexico and Texas.
The excessive heat that’s been gripping much of the Lone Star State is far from over, AccuWeather forecasters warn. And as it expands into the Plains, rounds of severe weather are emerging.
“Some impressive tree damage on east side of K-State campus with buildings damaged,” the weather service in Topeka, Kanas, tweeted Sunday. “A lot of multi-directional tree fall and substantial limbs 4-8″ diameter carried a long ways.”
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The weather service in Pittsburgh warned storms could move across western Pennsylvania along with a heavy dose of high heat: “If you are not a fan of the heat, well … only 192 days until the 1st day of winter.”
In California, thousands of residents headed for the beach.
“Just to escape the heat, really,” San Bernardino resident Christine Ramirez told KABC-TV on Newport Beach. San Bernardino could see 100 degrees later in the week. “We just wanted a family day so we all just came out. … Get early parking, and stay out here the whole day.”
At least the heat that found Death Valley was not a threat to the all-time record. It topped out at 134 degrees July 10, 1913.
In Arizona, meteorologists warned of high “heat risk” until Monday as highs soar up to 115 degrees. Residents were warned to limit outdoor activities. In Phoenix, TikToker Joe Brown’s thermometer showed a temperature of 202 degrees inside his car.