Weather Underground Forecast for Tuesday,December 16,2014
A series of Pacific systems will move across the West Coast on Tuesday, while a low pressure system will shift over the Midwest.
A pair of low pressure systems will impact the West Coast on Tuesday. During the morning, light to moderate rain will develop across portions of California, the Great Basin and the Pacific Northwest. High elevation snow showers will be possible across the Cascades and the Sierra Nevada. During the afternoon and evening, a stronger low pressure system will usher moderate to heavy rain across northern and central California. This system will also bring locally heavy snow showers to the Sierra Nevada. Winter weather advisories are already in place across the mountain range in anticipation of snow showers. In addition, scattered snow showers will spread across the northern Rockies during the late afternoon and evening.
A separate area of low pressure will move northeastward across the upper Midwest and the central Great Lakes. This system will trigger light to moderate rain across the Ohio Valley, the interior Mid-Atlantic and New England. Temperatures will be cold enough the west of this system to support snow showers across the upper Midwest and the western Great Lakes. A cold frontal boundary associated with this system will extend southward from the Ohio Valley to the Gulf Coast. As a moist air mass from the Gulf of Mexico collides with this frontal boundary, wet weather will develop across the southern tip of Texas, the central and eastern Gulf Coast, the Southeast, the eastern Tennessee Valley, the Mid-Atlantic and the Ohio Valley. High pressure will keep conditions relatively clear across the Plains on Tuesday.
A series of Pacific systems will move across the West Coast on Tuesday, while a low pressure system will shift over the Midwest.
A pair of low pressure systems will impact the West Coast on Tuesday. During the morning, light to moderate rain will develop across portions of California, the Great Basin and the Pacific Northwest. High elevation snow showers will be possible across the Cascades and the Sierra Nevada. During the afternoon and evening, a stronger low pressure system will usher moderate to heavy rain across northern and central California. This system will also bring locally heavy snow showers to the Sierra Nevada. Winter weather advisories are already in place across the mountain range in anticipation of snow showers. In addition, scattered snow showers will spread across the northern Rockies during the late afternoon and evening.
A separate area of low pressure will move northeastward across the upper Midwest and the central Great Lakes. This system will trigger light to moderate rain across the Ohio Valley, the interior Mid-Atlantic and New England. Temperatures will be cold enough the west of this system to support snow showers across the upper Midwest and the western Great Lakes. A cold frontal boundary associated with this system will extend southward from the Ohio Valley to the Gulf Coast. As a moist air mass from the Gulf of Mexico collides with this frontal boundary, wet weather will develop across the southern tip of Texas, the central and eastern Gulf Coast, the Southeast, the eastern Tennessee Valley, the Mid-Atlantic and the Ohio Valley. High pressure will keep conditions relatively clear across the Plains on Tuesday.
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