High temperatures are expected across the Tennessee Valley and the southern Appalachian Mountains as a heat wave expands across much of the country, according to the National Weather Service in Morristown. With humidity, heat indices in the region could exceed 100 degrees Fahrenheit.
The heat wave is forecast for the rest of July and into early August.
“Above-normal temperatures are likely over the Tennessee Valley and southern Appalachians,” the NWS said. “Temperatures will climb into the middle and upper 90s across parts of the Tennessee Valley for the end of July and early August along with muggy conditions.”
The heat indices over 100 are expected across parts of the central and southern Tennessee Valley, the forecast said.
The forecast for Oak Ridge calls for highs in the low- to mid-90s through Thursday. Haze from the wildfires in the western United States and Canada is expected to linger through Friday night. Saturday is forecast to be hot, and there is a chance of thunderstorms and showers from Sunday to Wednesday.
See the Oak Ridge forecast here.
There have been other heat waves in the United States this summer, including a very unusual one in the Pacific Northwest and western Canada in late June. A rapid analysis published in Nature said climate change and rising global temperatures made that deadly heat wave 150 times more likely. This month, Death Valley, California, set a world record for the hottest reliably measured temperature in Earth’s history for the second consecutive year.
More information will be added as it becomes available.
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