See more of the story The northern Plains will likely not be the only part of the nation's midsection to be inundated in the upcoming days. Heavy rain will threaten to cause problems over parts of the Midwest Thursday into Thursday night.

A potent storm set to tap into moisture from the Gulf of Mexico will deliver the soaking rain. The same storm will ignite a widespread outbreak of severe weather over the South.

The greatest potential for flash flooding lies from northern Arkansas to Illinois and Indiana. Rain totals will range between 2 to 3 inches. The rain will pour down in only a 6- to 10-hour time frame. Small streams will quickly fill up and inundate nearby land and roads. Flooding would also occur in low-lying and poor drainage areas.

The rain will spread farther into the Great Lakes and Northeast Thursday night and Friday. Rain amounts should not be as extreme but could be heavy enough to cause localized flooding problems.

Story by AccuWeather.com Senior Meteorologist Kristina Pydynowski