Fall heat wave to build in California, Arizona, Nevada
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Fall heat wave to build in California, Arizona, Nevada

Fall heat wave to build in California, Arizona, NevadaFall heat wave to build in California, Arizona, Nevada

AccuWeather meteorologists say temperatures will rise to record highs for most of the week from the deserts of the southwestern United States to the California coast. As temperatures rise, the risk of fires will re-emerge.

“A broad area of ​​high pressure will expand across much of the West this week, allowing temperatures to rise well above historical averages, even along the Pacific Coast where it may be more difficult for temperatures to rise,” said AccuWeather Meteorologist Haley Taylor.

When temperatures rise in the western part of the country, a cool breeze often flows in off the Pacific Ocean and helps regulate temperatures on many beaches and along the Interstate 5 corridor. In this case, however, the flow will be directed out to sea, and the cooling effect of the ocean will be minimal or non-existent .

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One of the hot spots along the coast this week will be the San Francisco Bay Area. After temperatures reached 60 degrees Fahrenheit this weekend, a few degrees below average, high temperatures will trend into the 80s on Monday and then into the 90s on Tuesday. Given the right conditions, the 1980 record of 97 could have been broken. The heat wave will bring the highest temperatures of the year to San Francisco. The highest level at the airport so far was 88 on July 2.

Los Angeles will also feel the heat, although temperatures will likely stay well below highs well above 100 degrees early this month. On September 6, the temperature in downtown Los Angeles reached 112 degrees, just 1 degree shy of the all-time record high of 113 set on September 27, 2010. Highs in downtown Los Angeles this year will generally be in the 80s the week of, but on Wednesday may reach a low of 90. Temperatures will therefore be 5-10 degrees above historical average.

It’s going to be very hot in the desert cities of Las Vegas and Phoenix this week. Record-high or record-high temperatures are forecast in both cities every Monday through Saturday this week, with temperatures expected to be at least 100 degrees by Friday in Las Vegas and by Saturday in Phoenix. In Phoenix, temperatures could reach a few degrees above the all-time September high of 116, set on the 1st in 1950 and again on the 5th this year.

Experts recommend increasing your intake of non-alcoholic and caffeine-free fluids as temperatures rise, especially when working or exercising outdoors.

Fierce heat, low humidity levels and dry vegetation are the main factors causing fires, so people should avoid using open flames and exercise caution when using outdoor equipment that can produce sparks.

“With strong offshore winds, there will be an increased risk of wildfires in Southern California through Wednesday, primarily in the mountains and foothills,” Taylor said.

The wind may cause fires that will spread towards coastal areas.

Ongoing fires on lines, bridges and airports have burned more than 100,000 acres, but all are now almost completely contained. As of Saturday afternoon, the Line Fire’s lowest containment level was 83%.

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