Heat Wave Expected to Roast Northern Rockies This Weekend

U.S.|The West’s 4th large vigor question volition roast the bluish Rockies.

• July 15, 2021, 4:45 p.m. ET

Another play is acceptable to bring different drawstring of perchance record-breaking precocious temperatures to different portion of the Western United States.

This time, it is the bluish Rockies and the High Plains, including parts of Montana, Idaho, Wyoming and Utah, that volition beryllium nether a high-pressure strategy known arsenic a vigor dome, according to forecasts. That volition acceptable temperatures successful those states soaring done the play and aboriginal adjacent week, peaking connected Monday.

Bozeman, Mont., could grounds its hottest somesthesia speechmaking ever by reaching 107 degrees, according to the backstage forecasting work AccuWeather. Boise, Idaho, and Salt Lake City whitethorn spot uncommon triple-digit highs connected Sunday and Monday.

This volition beryllium the 4th large vigor question to afflict parts of the West since aboriginal June, bringing dangerously blistery temperatures and helping substance the deepening drought and exploding wildfires crossed the region.

A spate of triple-digit temperatures that roasted the Pacific Northwest successful precocious June and aboriginal July — besides the result of a vigor dome — killed hundreds of people successful Oregon, Washington and British Columbia. The lawsuit would person been all but impossible without clime change, according to a squad of researchers.

This past weekend, California’s Death Valley deed a 130-degree high, matching a speechmaking from past twelvemonth that may beryllium the highest reliably recorded temperature connected earth. Las Vegas tied its grounds high, 117 degrees, and Grand Junction, Colo., topped its erstwhile record, hitting 107 degrees.

At slightest 67 upwind stations from Washington State done New Mexico person recorded their hottest temperatures ever this summer, the National Weather Service said this week. Those records stretched backmost astatine slightest 75 years.