11.   A frontal system with limited moisture will move quickly across the northern Plains toward the Great Lakes.

12.   A frontal system will gather moisture from over the Atlantic as it moves to the Eastern Seaboard on Wednesday.

13.   A moisture-laden frontal system will move slowly through the Eastern states, preceded by a band of heavy rain with some embedded thunderstorms.

14.   A surge of higher humidity will reach the Northeastern and Middle Atlantic States as a frontal system approaches from the Great Lakes.

15.   A swath of rain will sweep across New England on Saturday ahead of a weakening frontal system.

16.   A stream of Pacific moisture will impact much of the West as a complex frontal system pushes onshore.

17.   Breezes from the southwest ahead of a frontal system will draw milder air into the Northeast.

18.   But she said a frontal system northwest of the stricken area may finally provide the current necessary to break up the storm and drive it out of the Southeast.

19.   Clouds will rapidly thicken near the Northeast coast as a frontal system approaches from the Middle West.

20.   Farther south, a frontal system will bring showery rain from central California to northern Nevada and Utah.