11.   A surge of very warm air will cover the Rockies, but the Northwest will become cooler with more clouds and scattered showers.

12.   A weak front will approach the Northwestern Coast will clouds and some scattered showers.

13.   A surge of arctic air will be attended by gusty winds and scattered snow showers in the Great Lakes and northern New England.

14.   A weak front and a jet stream disturbance will interact along the Northeast Coast, producing patches of clouds and scattered showers.

15.   Abundant moisture and a jet stream disturbance in the Southwest will promote cloudy skies and scattered showers from New Mexico to Idaho.

16.   But eastern sections will remain under the control of a pool of chilly air aloft which will cause plenty of clouds to persist and scattered showers to develop.

17.   Damp breezes from the Pacific Ocean will generate clouds and scattered showers across western Washington and Oregon on Tuesday.

18.   Elsewhere, a weak storm system will enter the Pacific Northwest, with clouds and scattered rain showers west of the Cascades.

19.   Farther south, a weak disturbance will promote clouds and scattered light showers from the eastern Gulf Coast to the Carolina coast.

20.   Farther south, residual moisture trailing a cold front will bring clouds and scattered showers to extreme southern Florida on Sunday morning.