With temperatures soaring into the 90s and 100s and abundant moisture to fuel storms, communities from the Midwest to Southeast were ransacked by damaging thunderstorms again on Sunday.
Cities and towns that were struck by Friday's deadly derecho were once again the targets of severe weather.
Eastern North Carolina was hit very hard on Sunday. Three people were killed, and more than 40 others were injured in North Carolina as the storms rumbled.
A couple was killed when a tree crashed down on a golf cart in Gilead, N.C. A shed fell on and killed one man near Calico, N.C., while he was trying to put his golf cart in storage.
At least 40 people were treated for storm-related injuries throughout Beaufort County, N.C. Four miles northeast of Hope Mills, N.C., a tree fell on a vehicle, injuring the person inside.
Two people were injured by falling trees at Rural Retreat Lake in Virginia. A roof was blown off a concession stand, while several trees were blown down.
A tree was downed on a car in Locust, Ky., injuring one occupant.
One person was injured near Rogersville, Ala., with a large tree toppling onto a camper trailer.
In Tybee Island, Ga., a tree landed on a vehicle, causing two injuries.
A woman was trapped in a house after a tree was downed on a home in Ludowici, Ga.
There was a total of 395 damaging wind reports and 190 large hail reports from the thunderstorms on Sunday.
The Chicago area was hammered by storms again with hail the size of quarters and larger.
Showers and thunderstorms will return to the Southwest late this week and could reach part of California.
A cold front swinging into the Northeast will bring the threat of severe weather to part of the region on Tuesday afternoon.
The southwest Gulf of Mexico has given birth to the Atlantic basin's fourth tropical storm of the season and will send torrential rain into northern Mexico.
Flooding is a concern across southwest Mexico through midweek as Norbert moves just offshore.
An area of low pressure will bring a threat of heavy rain and flooding to parts of southern Europe through the middle of the week.
East Coast (1775)
Matecumbe Key, FL (1935)
Labor Day Hurricane hit Florida. Pressure at Matecumbe Key dipped to 26.35"/892.3 mb. Most intense hurricane ever to hit the U.S. with 200-mph wind. Tide of 15 feet; 408 dead.
Mecca, CA (1950)
126 degrees - highest ever for U.S. in Sept.