A stormy weather pattern will persist across the Four Corners on Friday, while a strong cold frontal boundary approaches the Northwest.
A cold frontal boundary will extend southwestward across the western Atlantic, the Gulf Coast, the southern Plains and the lower Intermountain West. A plume of moisture will interact with he tail end of this frontal boundary, which will lead to moderate to heavy rain and thunderstorms across the Four Corners. Locally heavy rain will bring threats of flash flooding to New Mexico, especially along sloped terrain. Showers and thunderstorms will also develop along and near this frontal boundary across the southern Plains, the Gulf Coast and the Southeast. Additionally, a low pressure system associated with the frontal boundary will generate a light mixture of rain and snow in northern Maine. Cold and dry air will settle in across the remainder of the Northeast on Friday.
Meanwhile, a strong Pacific cold frontal boundary will approach the Northwest. Moderate to heavy rain and high elevation snow will develop ahead of this frontal boundary over western Washington and western Oregon.
A ridge of high pressure should keep weather conditions dry in California, the Great Basin and the upper Intermountain West. The same high pressure system will expand over the Plains, drying conditions out from the northern Plains to the Great Lakes.
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