A storm system that looks to impact the state tomorrow looks to bring a mixture of light snow, light rain, light freezing, and even thunderstorms. A few of those thunderstorms may become severe in the far southeast part of South Dakota. The main threat with these storms will be damaging winds.
On the other side of the coin, a Winter Weather Advisory has been placed for north-central, northeast and central regions of the state. The reason behind the Winter Weather Advisory is for some freezing rain and total snow accumulations from a half of an inch to locally two inches and areas blowing snow.
Besides precipitation, strong northwest winds will gust from 50 to 60mph as High Wind Warnings and High Wind Watches.
Looking at the forecast radar maps and three different weather models, all three models show the impacts starting Wednesday afternoon and quickly moving out of there by early Thursday morning. Some models are showing more quick hits of intense amounts of precipitation. Generally, snow amounts look to be under two inches with the best risk for higher amounts will be near the North Dakota and South Dakota border.
The NAM weather model shows more precipitation than the GFS but still clearing out of here by Thursday morning.
The HRRR model has the precipitation out of the state by around midnight Wednesday night and shows a more widespread of light rain, light snow, and some freezing rain.