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Weather Underground midday recap for Thursday, December 18, 2014

A cold front approached the West Coast on Thursday, while a low pressure system developed over the Gulf Coast.

A Pacific cold front moved eastward toward the West Coast. Light to moderate rain developed ahead of this frontal boundary over western Washington, western Oregon and northwest California. Seattle, Wash., reported a midday total of 0.08 inches of rain. In addition, high elevation snow showers began to develop over the Washington Cascades on Thursday, as winter weather advisories were issued across the region. Light precipitation also developed over the Four Corners and the upper Intermountain West. Winter weather advisories were issued in southwest New Mexico, while freezing fog advisories were issued in northern Montana.

Just to the east, a low pressure system deepened over the western Gulf Coast. This system ushered rain and thunderstorms over the coast of Texas and the lower Mississippi Valley. Meanwhile, scattered snow showers popped up over the northern Plains. Bitter cold arctic air lingered over the northern tier of the country, as Grand Forks, N.D., recorded a midday high of 18 degrees.

A low pressure system lingered over southeast Canada on Thursday. Winter weather advisories were issued across New York as snow showers trailed this system over New England and the interior Mid-Atlantic. Houlton, Maine, reported a midday total of 13.0 inches of snow. Scattered snow showers also shifted across the Ohio Valley. The southern Mid-Atlantic and the Southeast stayed clear of precipitation. Temperatures ranged between the 60s and 70s across Florida.


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