Aroyo's
Heavy rainfall directed into steep valleys does it in California.
Flash floods - a big killer of humans in desert regions.
So far as we know in 2015, Mars does not have any running water to create floods.
Fast processes, such as volcanic eruptions, landslides, and flash floods, can create a variety of landforms quickly. For instance, volcanic eruptions can form new mountains and lava plateaus, while landslides can carve out steep valleys and create debris cones. Flash floods can reshape riverbanks and create alluvial fans. These rapid changes often lead to dramatic alterations in the landscape over a short period.
Flash floods are floods that happen quickly and without warning. Like they appear in a "flash".
flash floods
The Floods that happen suddenly are called Flash Floods.
Flash floods are floods that are caused by a storm. Normal floods are caused by non-stop rain.
you don't use answers.com because we ant profesionals
I believe Arizona is prone to occasional earthquakes, sandstorms, and flash floods (in canyons, valleys, etc.), as well as droughts.
Flash Floods take place at Canada and Johnstown.
In a flash.