The nation’s weather

Weather Underground Forecast for Monday, April 29, 2013.

Wet and unsettled weather will continue for the eastern third of the nation on Monday as a trough of low pressure reaches the Lower Great Lakes and the Appalachians. This disturbance will spread light to moderate scattered showers from the Ohio Valley into the Northeast and the Upper Mid-Atlantic. Meanwhile, heavier precipitation along with isolated thunderstorms are expect near and ahead of an associated low pressure system crossing into the southern Mid-Atlantic, from South Carolina into southeastern Pennsylvania. The southern stream of this system will continue to impact the Gulf Coast from southern Texas through the southeastern coast. Sea breeze convergence and weak low pressure energy may also translate locally heavy rainfall and thunderstorms over the southern tip of Florida.

Meanwhile, behind this system, a cold front will move into the Upper Midwest with a wave of low pressure and sufficient moisture. This will translate into scattered showers and chances of isolated thunderstorms with gusty winds from the Upper Great Lakes into Iowa and northern Illinois.

Elsewhere in the North, a series of cold fronts will drop into the Northwest and North-Central U.S., bring cooler temperatures, rain, and high elevation snow to areas from the Pacific Northwest through the Northern Plains through the beginning of the week.

Temperatures in the Lower 48 states Sunday have ranged from a morning low of 21 degrees at Alamosa, Colo. to a high of 102 degrees at Thermal, Calif.

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