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Storms to hit NW U.S., southwestern to see unseasonable heat

Staff Writer |
As storms tap into tropical moisture and snow levels rise, the risk of flash flooding and avalanches will increase across the northwestern United States into early next week.

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Warm, dry conditions will dominate the Southwest this weekend, but it will be a different story for residents farther north, where umbrellas, rain jackets and windshield wipers will get extensive use.

Storms with significant precipitation will track across the Pacific Ocean and take aim at the Northwest and southwestern Canada into early next week.

The risk of flash, urban and river flooding will increase with each storm.

Unseasonably warm air will build in and challenge records across the southwestern United States into early in the new week.

A building area of high pressure will bring a noticeable warmup over the weekend, according to AccuWeather Senior Meteorologist Ken Clark.

Las Vegas, Phoenix, and Burbank, Los Angeles and San Diego, California, may flirt with record levels spanning Sunday through Monday.

Temperatures will average 10-15 degrees Fahrenheit above late-January normals during the warm spell. Average highs range from 59-60 in Las Vegas to 68 in downtown Los Angeles and 69 in Phoenix at the end of the month.

The amount of warming will be limited in California’s Central Valley and the other valleys where fog may form at night and linger through much of the morning.

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