 Hill, Sudlersville, and Ellingdale. For your protection, move to an interior room on the lowest floor of a building. In addition to large hail and damaging winds, frequent cloud to ground lightning is occurring with these storms. Move indoors immediately. Remember, if you can hear thunder, you are close enough to be struck by lightning. Torrential rainfall is occurring with these storms and may lead to flash flooding. Do not drive your vehicle through flooded roadways.