A cold frontal boundary will linger over the Deep South on Friday, while an area of low pressure transitions across the Northeast.
A cold front will stretch west southwestward across the Southeast, the Deep South and the southern Plains. A wave of low pressure will deepen along the tail end of this frontal boundary. This area of low pressure will draw warm and moist air from the Gulf of Mexico, which will lead to rain and thunderstorms across the southern Plains and the lower Mississippi Valley. Isolated showers and thunderstorms will also develop over parts of the Southeast.
Meanwhile, a low pressure system will push slowly northeastward across northern New England and southeast Canada. A mixture of rain and snow is expected to develop over the northern Mid-Atlantic and New England. A cold frontal boundary stretching southwestward will initiate light to moderate rain across the Tennessee Valley, the middle Mississippi Valley and the central Plains. A mixture of rain and snow will also affect the central high Plains and the central Rockies. In addition, a swath of mixed precipitation will spread across North Dakota, eastern South Dakota, southwest Minnesota and northwest Iowa. North of the cold front, an arctic air mass will settle in across the northern Plains, the upper Midwest and the Northeast.
Out west, late evening showers will move onshore over northwest California, western Oregon and western Washington. A ridge of high pressure will bring warm and dry weather to the Southwest on Friday.
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