11.   A second surge of much cooler weather will trigger widespread showers in the northern and central Great Lakes.

12.   A stalled front across Florida will trigger some showers, mainly in central sections.

13.   A weak cold front will trigger a few showers in the northern Rockies.

14.   A weak cool front will trigger showers in the Dakotas, but a stronger front will bring gusty showers to the northwest Rockies.

15.   A weak cold front, north of the Dakotas, will push slowly south and may trigger a few showers in the northwest Lakes.

16.   A weak disturbance will trigger a few showers near the central Gulf Coast, while some showers will also develop in the Rio Grande valley.

17.   Cool, moist air circulating around low pressure in western Quebec will trigger a few showers in the northern and eastern Great Lakes.

18.   Gusty, cold winds from the northwest will trigger snow showers on the west slopes of the Bitterroots and Wasatch mountains.

19.   Humid air streaming north from the Gulf of Mexico will trigger showers from east Texas to the Florida panhandle.

20.   Humid winds from the northeast will trigger scattered showers in the lower Mississippi Valley and southern Texas.