Weather Story

6:00 PM CDT Thunderstorm Update

Today's Severe Weather Threat

Flooding Threat Today and Tonight

Four Day Outlook

A line of severe thunderstorms is currently moving across northwest Illinois and is expected to move across the area. Hazards include damaging to locally destructive winds and torrential rainfall. Brief tornadoes also can't be ruled out. Current timing has these storms moving through the I-39 corridor between 6 and 7 PM and reaching the west side Chicago around 8 PM. Note the the storm motion may vary at times so be sure to have multiple ways to receive warnings and have a plan to seek shelter if one is issued for your area this evening! Well ahead of the line of storms isolated storms will be possible in the blue shaded area, with the main hazards being frequent lightning.

The threat for severe weather is increasing across portions of northern IL this afternoon. Main hazards will be damaging winds and large hail, but brief tornadoes cannot be ruled out. Stay updated on the forecast this afternoon and have ways to get weather alerts!

Thunderstorms today will also be capable of producing torrential rainfall which may result in instances of flash flooding this afternoon/evening. The greatest flash flood threat will be north of I-80 and west of I-55 especially where heavy rainfall occurred yesterday. Remember to never drive or walk through flooded areas!

The stormy weather pattern will continue through Saturday with threats for strong to severe thunderstorms and flash flooding. Drier and less humid conditions are then expected Sunday into Monday.