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Maps show millions of Americans under heat alerts from extreme temperatures in Plains, Northeast
Roughly 100 million people across the United States are facing extreme temperatures this week as a heat dome scorching the western part of the country spreads to the Northeast.
In Billings, Montana, temperatures reached a record high of 111 degrees on Sunday as the dangerous heat was felt across the Great Basin, the Rockies and sections of the desert Southwest.
Temperatures are forecast to be 20 to 30 degrees above average for this time of year, according to CBS News meteorologist Nikki Nolan. Some locations will see record-breaking temperatures through the week.
The peak for the Northern Tier is expected on Tuesday, while the Northeast's peak is expected on Wednesday. The heat index across this wide stretch of the country will reach into the high 90s to over 100 for the next several days.
Record-shattering heat spreads east as heat dome stretches out
Meteorologist Derek Van Dam shows the new areas a heat dome will shift into after it broke all-time record high temperatures in the West and Northern Plains over the weekend.
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Summit County could see daily and all-time temperature highs Tuesday
With a heat dome sitting over the western United States, temperatures are expected to peak in Summit County â and potentially tie or break records â Tuesday.
National Weather Service meteorologist Maggie Ideker said a high pressure system settled over the West last week and is not expected to clear out until next week, creating high temperatures throughout the region. Tuesday’s forecasted highs in Dillon and Breckenridge could tie break the record for the hottest July 14 in each town, Ideker said.
In Dillon, the hottest July 14 on record was in 1939, when the temperature at the Dillon weather station reached 87 degrees. On Tuesday, the National Weather Service forecasts the high temperature there could reach 88-89 degrees, Ideker said. If Dillon reaches 89 degrees, it will tie its all-time record temperature, which Ideker said was set July 12 and 15 of 1939.
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