The surface front may stall on Monday, leading to showers and thunderstorms through the day. Localized heavy rainfall may lead to the need for flood watches and warnings.
There is a threat for strong storms in the late afternoon. With the heavy rain that will occur through the weekend, flooding could become a problem Monday night.
Showers and storms are expected to develop on Monday afternoon. Large hail is possible and though the tornado threat looks low, it cannot be ruled out.
Flooding is expected to become an issue after localized heavy rainfall. Afternoon storms could produce large hail, damaging wind gusts and possible tornadoes. In St. Louis, storms will reorganize during the afternoon and evening hours. Threats include large hail, damaging winds and the possibility of tornadoes.