1. A slow moving front will stretch from the Northern Plains into the central Rockies on Wednesday, triggering patchy clouds and a few thundershowers.
2. Heavy rain will cause flooding in parts of the East Thursday as a slow front intercepts a very humid air mass.
3. Isolated thunderstorms will erupt from the Tennessee Valley to the southern Appalachians as humid air intercepts a slow front.
4. Showers and thunderstorms will shift into the middle Mississippi Valley Thursday as low pressure develops along a slow front in Illinois.
5. The remnants of a tropical depression will merge with a slow moving cool front in the Ohio Valley.
6. The Southeast will have some clouds and scattered showers due to a slow moving front.
7. Thunderstorms will also fall on the Middle Atlantic and Southeast as a slow front undercuts and lifts very humid air.
8. A slow moving front draped across the northeastern portion of the country Tuesday spawned scattered showers and thunderstorms throughout the Northeast, Great Lakes and Ohio Valley.