Chief Meteorologist Darby Bybee says that very isolated severe storms may impact Northwest Arkansas and the River Valley tonight. Watch the videocast above to learn more.

WATCH: Tornado footage from Harrisburg, Arkansas

The Storm Prediction Center has issued a tornado watch for south-central Missouri and northern Arkansas. This watch lasts until 11 pm as the cold front continues to fuel additional thunderstorms.

In the middle of the severe weather season in Arkansas, storms keep piling up in the forecast. Much of Arkansas could see severe weather and flooding on Wednesday and more storms on Thursday, the National Weather Service said.

CARTERVILLE, Ill. (WSIL) — A tornado watch has been issued for the entire region until 11 p.m. The National Weather Service issued the tornado watch which includes all of southern Illinois, southeast Missouri, western Kentucky and northwest Tennessee. The watch also extends into Indiana and further north into Illinois and into Arkansas.

This will be an important week to have weather notifications turned on and to have your safe place ready in case of a tornado.

Millions of people are under tornado watches across the central United States on Sunday, as a volatile weather system has triggered power outages and huge hail. Nearly 175 million people from Illinois to eastern Texas and beyond could be affected,

Severe storms are likely Wednesday, with heavy rain and potential severe weather continuing through Saturday, increasing the flood potential.