Meteorologists warn of potentially historic flooding as a major storm hits the east with all hazards

A potent storm that already plunged parts of California underwater has started to deal a serious blow to the eastern half of the US with flooding rain, severe thunderstorms, tornadoes, snow and ice all expected.

​ A potent storm that already plunged parts of California underwater has started to deal a serious blow to the eastern half of the US with flooding rain, severe thunderstorms, tornadoes, snow and ice all expected. Read More Breaking News, Latest News and Videos | CNN