
Along I-75, I-275 and I-71, white-out conditions and ice along roadways set off chain reactions resulting in upwards of 100-car pileups, according to one estimate. At least one death has been reported.
You can use ODOT's new OHGO real-time traffic map to check out highway conditions ahead of time. Protip: Avoid yet another gigantic pileup by not checking the website while driving.