Timeline: Severe weather possible in Chicago area, new updates on wildfire smoke

What has been confirmed

Only one source so far — nothing has been independently corroborated yet.

What remains unknown

• Reported by one source, not yet independently confirmed: The Chicago area has been dealing with wildfire smoke for several days, but a severe weather threat is also looming for the region as a system sweeps down from Wisconsin.
• Reported by one source, not yet independently confirmed: What’s more, the wildfire smoke that’s billowed into the area from blazes burning in Canada and Minnesota may not be pushed out by the coming rain, but relief could still