Several Illinois counties are under a tornado watch as a storm moves northward through the state.

The following counties are under a tornado watch as of 1:45 p.m.: Bond, Calhoun, Clinton, Fayette, Greene, Jersey, Macoupin, Marion, Monroe, Montgomery, Pike, Randolph, St. Clair, and Washington.

The National Weather Service is predicting for southern Illinois to see the brunt of the storms, but the entirety of the state will be affected.

Some of central Illinois will see a 5-10% chance of seeing tornadoes, according to NWS' Storm Prediction Center . Some of southern Illinois faces a 15% chance of experiencing tornadoes, and a small portion of the southernmost part of the state faces a 30% chance of seeing tornadoes. Northern Illinois has a 2% chance of seeing tornadoes.

The percentages indicate the probability of a tornado happening within 25 miles of a point.

Most of Illinois is expected to see an "enhanced" risk from the storms Wednesday, which is a level three out of five.

In addition to the possibility of tornadoes, the storm is predicted to bring hail and heavy rainfall. The weather will continue throughout the week for some of Illinois, but particularly for the southern regions.

The NWS office for southern Illinois has not announced tornado watches, but they describe the weather pattern as "very active" and "very dangerous." The southernmost part of the state is labeled as high risk, or level five for severe thunderstorms for Wednesday afternoon and night.

A severe risk will linger through Saturday.

"Dangerous and potentially historic rainfall will begin this afternoon, with numerous rounds of heavy rain continuing into Saturday night, leading to potential catastrophic flash flooding," text from an informational graphic from NWS read.

Tom Ackerman covers breaking news and trending news along with general news for the Springfield State Journal-Register. He can be reached at [email protected].