1.   A potent jet stream disturbance will dive southward through the Mississippi Valley.

2.   By Friday, this disturbance will dive toward the Middle Atlantic Coast, causing low pressure to form near Cape Hatteras.

3.   Cloudy weather with areas of light snow will cover the northern and central Plains as a jet stream disturbance dives south from Ontario.

4.   Meanwhile, an important jet-stream disturbance will dive southeast from Oklahoma on Saturday.

5.   Snow showers will dot most of the mountains of the interior Northeast and the Middle Atlantic States on Monday as a jet stream disturbance dives south from Ontario.

6.   Snow showers are likely from the central Plains into the Ozarks Sunday afternoon as a jet stream disturbance dives south from Canada.