An upper-level ridge will shift eastward over the West Coast and into the Intermountain West, with a thermal trough slowly shifting eastward from near the coast into the Willamette Valley and on western slopes of the Cascades. Temperatures will be 5-15°F above normal in northern California, the Northwest, Idaho, and Montana, with minimum relative humidity mostly 10-35%. Weak east-northeast offshore flow may develop again overnight in northwest California and southwest Oregon, and some areas of poor to moderate relative humidity recovery may persist overnight as well. Scattered to widespread thunderstorms and showers will develop from the Four Corners through much of the southern and central Plains, Texas, Gulf Coast, Deep South, Florida, and into the Upper Midwest and western Great Lakes. A cold front will be a focus of rainfall from the Great Lakes into the southern Rockies and a stalled surface front will be another focus of rainfall from central Texas through the Gulf Coast. Another cold front will push south through the northern Plains into the western Great Lakes. Rain and gusty winds of 25-50 mph are likely to begin overnight along coastal New England ahead of Hurricane Lee. Dry and breezy conditions are likely in eastern Virginia and North Carolina due to Lee passing to the east and remaining in a post-frontal airmass.