Weather Underground Forecast for Saturday,November 19,2016
A low pressure system will impact a handful of states across the eastern half of the country on Saturday, while a Pacific system affects the West Coast.
An area of low pressure will move in an eastward trajectory from the Great Lakes to the Northeast. This system will usher moderate to heavy snow across portions of the upper Midwest. A cold air mass will trail this system and interact with the relatively warm waters of the Great Lakes. This interaction will generate lake effect snow downwind of the Great Lakes over portions of the central and northern Appalachians. A light to moderate mixture of rain and snow will also develop in parts of the northern Mid-Atlantic and northwest New England. Precipitation will fall in the form of rain across most coastal regions stretching from New England to the Mid-Atlantic. Cold and dry air will settle in over the northern and central Plains, as well as the Mississippi Valley.
Meanwhile, a separate frontal system will move south southeastward over the West Coast. This frontal boundary will produce moderate to heavy rain from the Pacific Northwest to central California. Light to moderate rain will also develop over parts of the northern Great Basin and the lower elevations of the upper Intermountain West. High elevation snow will impact the Cascades, the northern Sierra Nevada and the northern Rockies. Winter storm warnings are in effect for the southern Cascades, while winter weather advisories are in effect across the Sierra Nevada. High pressure should keep conditions fairly dry from southern California to the southern Plains.
A low pressure system will impact a handful of states across the eastern half of the country on Saturday, while a Pacific system affects the West Coast.
An area of low pressure will move in an eastward trajectory from the Great Lakes to the Northeast. This system will usher moderate to heavy snow across portions of the upper Midwest. A cold air mass will trail this system and interact with the relatively warm waters of the Great Lakes. This interaction will generate lake effect snow downwind of the Great Lakes over portions of the central and northern Appalachians. A light to moderate mixture of rain and snow will also develop in parts of the northern Mid-Atlantic and northwest New England. Precipitation will fall in the form of rain across most coastal regions stretching from New England to the Mid-Atlantic. Cold and dry air will settle in over the northern and central Plains, as well as the Mississippi Valley.
Meanwhile, a separate frontal system will move south southeastward over the West Coast. This frontal boundary will produce moderate to heavy rain from the Pacific Northwest to central California. Light to moderate rain will also develop over parts of the northern Great Basin and the lower elevations of the upper Intermountain West. High elevation snow will impact the Cascades, the northern Sierra Nevada and the northern Rockies. Winter storm warnings are in effect for the southern Cascades, while winter weather advisories are in effect across the Sierra Nevada. High pressure should keep conditions fairly dry from southern California to the southern Plains.
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