USA TODAY Days after parts of the south-central U.S. suffered freezing temperatures and ice that knocked out power to millions and resulted in dozens of deaths, many of the same areas are at risk of flash flooding from heavy rainfall expected over the weekend. Excessive rainfall is expected along an approximately 1,000-mile-long zone from Texas to Maryland over the next three days, according to AccuWeather senior meteorologist Alex Sosnowsk. Soil potentially still wet from the melting snow and ice from last week's winter storm could accelerate water runoff, Sosnowski said. Some areas could see more than 5 inches of rain, the National Weather Service said on Twitter Friday.