04 January 1997 -- Convective snow over South Dakota and Minnesota

Mid-level short wave moved eastward along SD/NE border, and deepened rapidly (note pronounced darkening on water vapor animation)
Mid-level CAA coupled with low-level WAA/isentropic lift ahead of vorticity lobe destabilized atmosphere, generating convective snow from northeastern SD into west-central MN
10-19 inches of snowfall north of southern edge of IR cold cloud top enhancement
Mid-level dry slot shut off precipitation over southern MN and northern WI
Strong CAA behind system produced blowing/drifting snow; portions of I-29 and I-94 closed across ND/SD/MN due to near-blizzard conditions