An overperforming trough pushed into the Midwest & Eastern US this week yielding severe weather reports in Indiana and tornado reports in Delaware. This trough also brought cold air into the region prompting a locally impactful lake-effect snow event across Indiana and Illinois. That cold air will settle in the Southeast this weekend prompting a multi-night freeze and frost episode across the Mid-South and Deep South. Sensitive areas like the citrus growing regions of S GA and N FL could see a frost event Sunday morning.