A serious weather alert has been issued for the central United States, with forecasts predicting an increased risk of tornadoes and severe thunderstorms. The National Weather Service has declared a Weather Aware Day for Wednesday, warning that over 30 million residents could see their Halloween plans disrupted due to the severe weather. Storms capable of producing damaging winds and large hail are expected to develop, particularly across the Great Plains. Some areas have already experienced severe thunderstorm warnings, with strong storms bringing heavy hail and road closures reported in Kansas. As the cold front moves through, gusty thunderstorms are likely to precede a quick cooldown in the region.