1.   An advancing cold front could trigger showers which would force a postponement, NASA warned Tuesday.

2.   A cold front approaching the Southeast Coast will trigger a few showers in south Georgia and north Florida.

3.   A cold front approaching Washington will trigger some showers in the Olympic peninsula.

4.   A cold front will trigger scattered showers in the northern Plains but rainfall amounts will generally remain below a third of the inch.

5.   A disturbance will trigger patchy showers, with snow confined to the highest elevations.

6.   A cold front moving into the northern Rockies will trigger a few showers.

7.   A new disturbance entering the nation from central Canada should trigger mixed showers from the eastern Dakotas to Minnesota.

8.   A jet stream disturbance moving into the west will keep ocean clouds near the coast and trigger a few showers inland.

9.   A large disturbance moving through the southern Rockies will trigger numerous showers from Colorado to central New Mexico.

10.   A large disturbance in the jet stream will linger over the Northeast and this will trigger a few showers into the Catskills and Poconos.