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Intense, prolonged heat wave set to roast the West

A heat dome will settle over the West this week and help produce record-challenging temperatures across the region. One location could reach as high as 119 degrees Fahrenheit.

AccuWeather Global Weather Center – August 30, 2022 – In recent days and weeks, many of the Western states have avoided prolonged periods of intense heat that have been common this summer as the frequent rainfall and humidity provided by the North American monsoon have helped keep temperatures in check across the region. However, AccuWeather meteorologists expect a sharp pattern change to occur this week and usher in much higher temperatures.

The frequent rainfall so far this month has made an impact on temperatures in the Desert Southwest. In Phoenix, for example, temperatures so far in August have been 1.5 degrees below average. While temperatures in the city generally peak at around 105 degrees Fahrenheit in August, the mercury has failed to reach the triple digits on many days. Albuquerque, New Mexico, and Las Vegas have also had below-normal temperatures so far this month.

In the Northwest, which has been drier as of late, it’s been a slightly different story. In Portland, Oregon, temperatures have been about 4 degrees above average for August. Similar numbers are being reported in cities such as Seattle and Salt Lake City. The combination of high heat and little rain has led to the spread of wildfires as well, with several major blazes burning in the region. With this week’s expected pattern, relief is unlikely to arrive soon.

An impressive ridge of high pressure will build across the West this week, allowing temperatures to steadily rise over time. With the jet stream pushed well to the north, the chances for meaningful, widespread rain will be close to zero with this pattern, according to AccuWeather Meteorologist Andrew Kienzle.

Intense, prolonged heat wave set to roast the West (Full Story) >>

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