Weather Underground Forecast for Saturday, May 24, 2014
A cold frontal boundary will extend from the West Coast to the upper Intermountain West on Saturday, while a separate frontal boundary will stretch from the southern Plains to the Southeast.
A cold front will continue to linger over the southern Plains, the lower Mississippi Valley and the Southeast on Saturday. As warm, muggy air pushes northward from the Gulf of Mexico, it will collide with this frontal boundary to produce widespread rain and thunderstorms. Stormy weather can be expected across much of the Plains, the Mississippi Valley, the Tennessee Valley and the Southeast, while high pressure will keep the Gulf Coast clear of precipitation. There will be a slight chance of severe thunderstorms over eastern New Mexico and western Texas. These thunderstorms will be capable of producing large hail and dangerous straight line winds. Heavy rain associated with these storms will also bring a chance of flash flooding to western Texas.
Meanwhile, a strong low pressure system will inch across the Mid-Atlantic and Northeast coast on Saturday. Rain and thunderstorms are forecast to develop over the northern Mid-Atlantic and New England. High pressure will keep conditions clear across the Ohio Valley and the southern Mid-Atlantic.
Out west, a cold front will stretch from northern California to central Montana, as scattered showers and thunderstorms will be possible over the eastern Great Basin and the Intermountain West.
Temperatures in the Lower 48 states Friday have ranged from a morning low of 28 degrees at Yellowstone, Wyo. to a high of 96 degrees at Barnwell, S.C.