The White House says US President Donald Trump is monitoring severe weather that caused a string of tornadoes blamed for three deaths in the Midwest.
The deadly storm is moving to the East, and White House spokesman Sean Spicer says the President urges everyone in the storm's path to follow directions from emergency services officials and stay inside.
Spicer says the White House will stay in touch with state and local officials to provide federal support as needed.
Hundreds of homes have been damaged or destroyed in storms that began yesterday.
One man was killed in Missouri and two people died in Illinois.
Authorities say the tornado that caused widespread damage in Missouri was a strong one that was on the ground for several kilometres.
Perryville Fire Chief Jeremy Triller says the twister was on the ground for up to 25km, starting in Missouri and ending in Illinois.
A 24-year-old Perryville man died when the vehicle he was in was blown off of Interstate 55 and he was ejected.
More than 100 homes in the area near Perryville were damaged, many of them destroyed. Twelve people were injured but none of the injuries are believed to be life-threatening.
Authorities have identified a central Illinois man who was killed. The LaSalle County coroner's office said that 76-year-old Wayne Tuntland, of Ottawa, was crushed by a falling tree. More than a dozen people in the area were injured.
Fire Chief John Nevins says about 50 of 200 homes were damaged in Naplate, a small community next to Ottawa.
Governor Bruce Rauner toured the region today and thanked first responders.
Authorities say there is flooding in parts of northern West Virginia.
Lawrence Messina, spokesman for the Division of Homeland Security and Emergency Management, says the agency is monitoring conditions throughout the state with the help of county and municipal authorities.
He says some roads have been flooded and drains are backing up, and that some schools cancelled classes as a precaution.