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Weather Underground Forecast for Friday, May 22, 2015
A low pressure system will slide across the East Coast on Friday, while a separate system will shift over the Southwest.
A pair of low pressure systems are expected to merge over the Northeast. These systems will bring light to moderate showers to portions of New England. A cold frontal boundary will extend across the western Atlantic, Florida and the Gulf Coast. Moisture from the Gulf of Mexico will collide with this frontal boundary, resulting in showers and thunderstorms from the western Gulf Coast to Florida. High pressure will keep conditions relatively dry across the Tennessee Valley, the Ohio Valley and the upper Midwest on Friday.
Meanwhile, an area of low pressure will slide across the Southwest. This system will continue to bring showers and isolated thunderstorms to the Pacific Northwest, the Southwest, the Great Basin and the Intermountain West. There will also be chances of rain along the coast of California. In addition, this system will interact with warm, muggy air over the Plains. This interaction will generate strong to severe thunderstorms over the central and southern Plains, as well as the middle Mississippi Valley. Severe thunderstorms will be possible over western Texas and eastern New Mexico. These thunderstorms will be capable of producing large hail, dangerous straight line winds and isolated tornadoes. Heavy rain will bring threats of flash flooding to southeast New Mexico, northern Texas and Oklahoma.