Severe thunderstorm threat, tornadoes could affect Chicago area – NBC Chicago

Severe thunderstorm threat, tornadoes could affect Chicago area – NBC Chicago

Severe thunderstorm threat, tornadoes could affect Chicago area – NBC Chicago

It could be a messy commute for Chicago-area residents Tuesday morning as a strong storm threat could bring the risk of heavy rain, damaging winds and even tornadoes to the region.

Prior to the arrival of these storms, a severe thunderstorm warning was issued for all of Kendall County, as well as western Will, northeastern Grundy and southwestern Kane County until 12:45 p.m.

A line of storms, located between Big Rock and Elwood, was moving southeast at 20 to 30 miles per hour.

The National Weather Service is warning residents of quarter-sized hail and heavy rain in connection with the storms, which could affect Joliet, Naperville, Frankfort, Wilmington, Coal City and Shorewood, among others.

After these storms move away, another round could bring more severe weather to the region. According to the Storm Prediction Center, Wisconsin’s Kenosha County and Illinois’ McHenry and Lake counties are at an “increased” risk of severe weather into the early hours of Tuesday morning. The rest of the Chicago area is at a “slight” risk of severe storms, according to officials.

Those storms could start arriving before sunrise as a system pushes south from Minnesota and Wisconsin, forecasters warn.

The biggest storm threats could come in the form of damaging winds with gusts up to 70 miles per hour. There is also the risk of heavy rain and localized flooding, along with a chance for tornadoes, according to the NBC 5 Storm Team.

Elsewhere in the area, an isolated tornado threat is present, along with a chance for heavy rain, strong winds and some hail.

Those storms could pass by 7 a.m., but additional pop-up storms are still possible even after the main lines move through the area, according to the Storm Team forecast.

NOTE: We will update this story with additional details when the NBC 5 Storm Team releases new model data at approximately 9:30 p.m.

After those storms pass, the Chicago area could see warm and humid conditions Tuesday, with highs in the 90s and heat indices approaching 100 degrees, according to forecast models.

These conditions could help fuel additional storms as the front arrives Tuesday evening, with strong to severe storms again possible.

Another set of storms could also develop Wednesday morning, although the strength of those storms is unclear at this time.