Hurricane Ida became a tropical storm as its top winds slowed over Mississippi on Monday, while across southeast Louisiana residents waited for daylight to be rescued from floodwaters and see how much damage was caused by one of the most powerful hurricanes ever to strike the US mainland. All of New Orleans lost power right around sunset Sunday, leading to an uneasy night of pouring rain and howling winds. The weather died down shortly before dawn and people began carefully walking around neighborhoods with flashlights, dodging downed light poles, pieces of roofs and branches.