21. Polar air will flow back into the Northeast on Saturday as low pressure strengthens near Nova Scotia. 22. Rain showers will develop from Arkansas to the Gulf Coast as low pressure strengthens in the Red River Valley. 23. Rain will fall from Arkansas to the upper Tennessee Valley as low pressure strengthens across the region. 24. Showers and isolated weaker thunderstorms will develop from the Ohio Valley to the southern Great Lakes as low pressure strengthens over Missouri. 25. Snow will fall in the northern Rockies as low pressure strengthens. 26. Strong thunderstorms are possible across Montana as low pressure strengthens and moves toward Canada. 27. Strong winds, wet snow and heavy rain will batter most of New England on Friday as low pressure strengthens and stalls near the Massachusetts coast. 28. Sunny and very warm conditions will cover a large area from the central Plains to the Middle Atlantic States as high pressure strengthens. 29. Sunshine will finally return to parts of the Middle Atlantic States as a stubborn low pressure strengthens well east of Cape Hatteras. 30. The Northwest will be sunny and very pleasant as high pressure strengthens near the Olympic peninsula. |