A powerful winter storm system will bring a significant, long-duration snowfall event to much of South Dakota, Minnesota, Iowa and Nebraska today and tomorrow. With 6 to 10 or more inches of snow likely over the next couple of days and wind gusts to 20 or 25 mph tomorrow into tomorrow night, travel will be impacted. A Winter Storm Warning is in effect for much of our region – including the Sioux Falls metro area – through Tuesday evening.
The storm will begin with areas of light freezing drizzle this morning. That will quickly change to snow that will become heavy at times by later this morning and will continue through the afternoon. Our heaviest snow will fall during the day today with 4 to 6 inches possible today alone. Snow that falls today will be relatively wet and heavy but will become lighter and fluffier as temperatures drop slightly this afternoon. Snow, while a bight lighter, will continue to fall through tonight and tomorrow with an additional 2 to 4 inches possible through tomorrow evening.
The wind will be relatively light both today and tonight, however, it will increase tomorrow. Gusts to 25 mph are possible by tomorrow afternoon through tomorrow evening and that will create areas of blowing snow at times, especially in rural areas.