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Heat dome is scorching South, moving toward East
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The heat index, or how it feels with humidity factored in, will rise into the triple digits for millions as the hot dome of high pressure engulfs the central states and eventually spreads eastward.
You’ll hear the term “heat dome” a lot this week as a pattern of very hot temperatures and dangerous heat indices set up across a good portion of the US. A heat dome is strong area of high pressure and warm air that essentially sits over an area for a prolonged period
Almost 85 million Americans from South Dakota to Texas and North Carolina to Florida are already under extreme heat warnings, watches or advisories.
Heat domes are caused by high-pressure systems that trap air near the surface of the Earth, sealing in hot, humid air and stopping cooler air from cycling through.
More than 97 million people are under life-threatening heat alerts from the South to the East Coast as a large ridge of high pressure builds over the central U.S. this week, commo
A heat dome dries out the ground and air above it, which deters thunderstorms, but means drought can begin or worsen. A heat dome is also known as a ridge of pressure, blocking high and death ridge.
How hot will it get as the humidity builds and a heat dome spreads toward the Northeast? What is a heat dome? Here's what to know and what it means.
The National Weather Service has issued a Heat Advisory for Kent and Sussex counties, and an Extreme Heat Watch for New Castle County, as the heat dome is expected to impact Delaware on Friday. The Heat Advisories and Extreme Heat Watch will be in effect from 10 a.m. to 8 p.m. on July 25.
While Texas bakes under sweltering conditions, it's far from alone. Millions are under threat of extreme heat this week.
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