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Associated Press

Posted on February 18, 2014 at 6:34 AM

Updated Tuesday, Feb 18 at 6:36 AM

Weather Underground Forecast for Tuesday, Feb. 18, 2014

A cold frontal boundary will extend from the western Gulf Coast to the Mid-Atlantic on Tuesday, while another cold front will stretch from the Great Basin to the upper Midwest.

A swath of heavy snow showers are expected to move across the Northeast on Tuesday as an area of low pressure treks across the region. Heavy snow will be possible from the northern Mid-Atlantic to northern New England, while a mixture of rain and snow will push across the eastern Ohio Valley and the western portion of the Mid-Atlantic. Meanwhile, another wave of low pressure along the western portion of the Gulf Coast will draw a warm, muggy air mass from the Gulf of Mexico across the Gulf Coast and Southeast. This will lead to rain across a handful of states in the southern Plains, the Gulf Coast, the low Mississippi Valley, the Tennessee Valley, the Southeast and the lower Mid-Atlantic.

A cold front extending from the Great Basin to the upper Midwest will drive heavy snow showers across the Cascades and the northern Rockies on Tuesday. Rainy weather is expected in lower elevations across northern California, Oregon, Washington, Idaho and northern Nevada. Towards the end of the day, light snow will move across parts of the northern Plains and the upper Midwest. High pressure over the four corners will bring above normal temperatures to the Southwest and the central Plains.

Temperatures in the Lower 48 states Monday have ranged from a morning low of -26 degrees at Watertown, N.Y. to a high of 87 degrees at Robstown, Texas

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