Floods are most common during spring and summer
It depends on how much it rains. Any part of Nebraska can have the most floods. But usually Nebraska only floods by rain.
Most flash floods occur after late afternoon rainfall.
china
japan
kansas
the hudson river, and every year, it floods Maine. :P
They mostly happen in south America or in Mexico where the land is dry is where the floods occur.
japan
Flash Floods
June-October
most floods occur when dams break or even rainy days that can make lakes filled and can pour onto land.