The howling wind remains the big weather story through this evening but it’s an interesting forecast to say the least, through late Wednesday. Snow is still a distinct possibility for many, primarily in the southern half of the area.
Winds won’t really start to subside until very light tonight. Well behind the actual cold front, very limited moisture comes into the west tonight. That means the chance of a few snowflakes for the far west and a stray rain shower towards Pierre before dawn. A glancing, quick shower could move into the east before noon, but it shouldn’t amount to much. Highs tomorrow will be warmest in the southeast, including in Sioux Falls. It won’t be the prettiest start to the week for those in Rapid City, though, with cold, clouds and a chance of wintry mix.
This first system shouldn’t amount to much and our eyes are focused more on the second piece arriving Tuesday. Most of the moisture is confined to the south, and we’re talking south of Highway 14 in most cases. Even though it comes from the south, the air is quite cold. While last week it looked more like rain, we’ve been talking about the threat of snow coming in and that’s still the case. Aberdeen and those farther north will miss out on the bulk of this but those in Rapid City and Sioux Falls will want to watch this closely.
The best banding happens to sit right over Sioux Falls and a few inches of snow are not out of the question. Of course, this storm will change its track somewhat before arriving and this is one of those tightrope storms. Minnesota (Buffalo Ridge) and parts of the Black Hills figure to end up with the most snow from this.
Here's a product that shows the potential of 4"+ of snow:
But THIS is the problem with wintry mix on the reliable Canadian model:
This pushes east fast on Wednesday so most of the storm will be gone by afternoon. We get a few quiet days before another Alberta Clipper tries its luck Friday into early Saturday.