21.   However, a band of clouds and patchy snow will accompany a frontal system neat the Great Lakes.

22.   However, sunshine will yield to thickening high clouds in the interior Northeast and Ohio Valley as a frontal system approaches from the Midwest.

23.   Low pressure will organize along a complex frontal system on Thursday in the southern Plains states.

24.   Most of the West will be dry and mild, although a Pacific frontal system will bring rain to the Northwest Coast.

25.   Rain and mountain snow will sweep across northern and central California as a strong frontal system moves inland.

26.   Skies will be duller in the Middle Atlantic and Northeast than in recent days as high clouds spread ahead of the approaching frontal system.

27.   Sunshine will mix with clouds in coastal areas as a fast-moving frontal system moves southeast from the Ontario region.

28.   The latest in a series of wet frontal systems will invade the Pacific Northwest.

29.   The northern end of this frontal system will move off the Northeast coast early Friday and conditions will slowly improve.