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    Interior West to Sizzle into Tuesday

    By By Brian Lada, Meteorologist
    May 19, 2013, 5:24:57 AM EDT

    Above average temperatures will continue through this week across much of the Southwest while some cooling occurs in the Northwest.

    After a sizzling hot day on Monday, temperatures will once again climb into the lower 90s on Tuesday in California's Sacramento Valley and into the upper 90s in the San Joaquin Valley.

    Temperatures will top out in the low 100s from Palm Springs, Calif. for the fourth day in a row, as well as much of southwestern Arizona.

    High temperatures rising into the 90s will be found into eastern Utah and central Nevada, though some cooling will begin to invade the northern Rockies.

    These above-normal temperatures are due to an upper-level zone of high pressure that had slowly been strengthening over the Southwest since Friday.

    But, the area of high pressure will continue to break down into Tuesday causing the cooling in the northern Rockies.

    Just a day after Boise, Bozeman, and Billings rose into the upper 80s, highs on Tuesday will struggle to reach the 70-degree mark.


    A system will move through the northern Rockies into Tuesday, allowing for that cooler Pacific air to invade the region.

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    As temperatures cool in the Northern Rockies, temperatures will be on the rise elsewhere. The ridge of high pressure over the Southwest will shift eastward Tuesday, bringing another day of record-challenging warmth from the Front Range of the Rockies and into the central Plains. Temperatures will also warm into the 80s all the way into Chicago.

    High Tues.
    High Wed.
    Seattle, Wash. 65 62
    Portland, Ore. 69 66
    Salt Lake City, Utah 82 81
    Sacramento, Calif. 89 83
    Fresno, Calif. 95 91
    Palm Springs, Calif. 104 98
    Las Vegas, Nev. 101 94
    Phoenix, Ariz. 102 100

    Further cooling of the West is expected on Wednesday as a dip in the jet stream moves into the area. High temperatures will fall about 3-5 degrees across much of the Southwest, though they will still remain above normal for this time of year.

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