Please prepare for a significant warmup heading into the weekend. Hot and muggy weather will persist from Saturday through Tuesday. We are forecasting a 50-90% chance of Major HeatRisk for north-central Minnesota on Sunday, with a 20-60% chance across the remainder of northeast Minnesota, and a 20-45% chance (with localized 60% chances) in northwest Wisconsin. Make sure you have a plan to stay safe, check on vulnerable people, and stay tuned for possible Heat Advisories and Warnings.