21.   Elsewhere, chilly air will surge south across the western Plains, keeping temperatures below normal and producing snow showers in the southern and central Rockies.

22.   Farther west, a stronger cold front will cross the northern Great Lakes, producing showers.

23.   However, gusty winds from the west over New England will produce snow showers in the mountains.

24.   In the Northwest, a cold front will produce coastal showers, but most areas east of the coastal mountain ranges will remain dry through late afternoon.

25.   Low pressure moving east over the northern Gulf of Mexico will produce these showers.

26.   Low pressure moving into southern Utah will produce scattered showers.

27.   Meanwhile, a disturbance near the Delmarva Peninsula will produce heavier showers across the Carolinas on Wednesday morning.

28.   Meanwhile, brisk winds from the west will produce showers in western Washington and Oregon.

29.   Moisture from decaying hurricane Hillary in the eastern Pacific will flow into the Southwest helping to produce showers in sections of Arizona and parts of southern California.

30.   Milder, moist air from the Gulf of Mexico will produce showers in the lower Mississippi Valley and periods of rain farther north in Michigan and Indiana.