Winter Weather Advisories & High Wind Watches Posted
A series of systems will barrel through the area this weekend, finishing with a strong clipper Sunday evening
Snow showers are crossing the South Dakota plains this morning and afternoon, bringing some brief periods of moderate snow and gusty winds. Major impacts to travel are not expected for I-90, save for areas of Northeastern Wyoming that are currently under winter weather advisories. 10-15 mph northwest winds will follow the Black Hills all the way to Monday morning, with gusty conditions peppered throughout that time.
Moderate snow accumulations of 3-7″ are possible in the Wyoming and Northern Black Hills, with higher elevation areas near Cheyenne Crossing and Buckhorn possibly receiving up to 10-12″ of snow through Saturday evening.
Saturday will bring the chances for Snow, and mixed precipitation for areas of the Black Hills. Mostly Snow at higher elevations, mixed precipitation for areas like Rapid City and Sturgis. Road surface temperatures will be below freezing in spots, so rainfall could lead to freezing rain Saturday afternoon and evening and create slick spots.
Sunday will see things clear out nicely for everyone, temperatures rising to almost the mid 50’s in areas that see more sunshine. As we approach the evening however, signs that an approaching system will become evident with increasing cloud cover and cool temperatures. By around 6 pm, a strong Alberta Clipper will push through the area, with snow squalls and gusty winds. Accumulations are a little tough to call at this point, but it looks more likely that wind and dropping temperatures will be the more concentrated issue. Single digits Sunday evening into Monday morning are possible for Rapid City, with wind chill reaching the negatives.
High Wind Watches have also been posted for portions of West River, North and East of the Black Hills which includes Rapid City for possible 60 mph wind gusts. This is specifically for the clipper system Sunday evening going into Monday morning.
Although next week will be much cooler with high temperatures topping out in the low to mid 20’s, conditions look more stable with less chances for precipitation. The next chance for moisture and unsettled weather are tied with another possible cold shot at the end of next week.