* WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph.
* WHERE...Portions of northwestern, south central, and southwestern South Dakota.
* WHEN...Until 6 AM MST /7 AM CST/ Tuesday.
* IMPACTS...Sudden wind gusts can cause drivers to lose control, especially in lightweight or high profile vehicles. Strong winds can cause blowing dust, reduced visibility, and flying debris.