Following thunderstorms, cooler settles into the Midwest and Northeast through Midweek.
One person is dead, and another remains critically injured after a lightning strike in Southern California.
Relief is on the way for portions of the Plains that are in the grips of the ongoing drought.
Severe storms brought damaging winds, hail, flooding downpours and possibly tornadoes across the Ohio Valley and mid-Atlantic Sunday and early Monday.
Heavy rain will aim for eastern France, southern Germany and northern Italy early this week.
A wildfire that has already destroyed at least 17 structures is threatening more than 500 more in the Sierra Nevada foothills near Plymouth, California, state fire officials said Sunday.
Sharon, PA (1999)
70 mph wind gus in a thunderstorm.
Small but intense storm, said to be the worst in about 50 years, hit southern Mississippi (where Camille hit in 1969). U.S. Coast Guard cutter lost with 39 aboard.
New England (1949)
Heat wave in New England; Greenville, RI hit 102 degrees.