Close this window. The 1984 National Minimum Drinking Age Act, [23 U.S.C. Â§ 158], requires that States prohibit persons under 21 years of age from purchasing or publicly possessing alcoholic beverages as a condition of receiving State highway funds.
Desert soil is thin and dry and cannot absorb a sudden rainstorm and there are few plants to absorb water. The rain rushes down hillsides and mountains and overflows arroyos, flowing into roads and homes in its path. They can occur suddenly and areas far from the actual storm can be flooded.esert soil is thin and dry and cannot absorb a sudden rainstorm and there are few plants to absorb water. The rain rushes down hillsides and mountains and overflows arroyos, flowing into roads and homes in its path. They can occur suddenly and areas far from the actual storm can be flooded.
Although prior ground saturation increases the flash flood risk, many flash floods occur when the ground is not saturated. Flash floods can and do occur with dry soils and drought conditions. Hydrologic influences of the ground surface can have a major impact on the timing, location, and severity of flash flooding.lthough prior ground saturation increases the flash flood risk, many flash floods occur when the ground is not saturated. Flash floods can and do occur with dry soils and drought conditions. Hydrologic influences of the ground surface can have a major impact on the timing, location, and severity of flash flooding.