Concerns are growing about a possible storm system impacting South Dakota by the next work week.
Weather models predict a storm system with moderate to heavy precipitation for South Dakota starting on Monday. The GFS model shows rainfall moving up from the south on Monday and spreading across central and eastern areas of the state. As the storm system pulls away towards the northeast, wraparound precipitation looks to bring wintry weather to parts of central and eastern South Dakota on Tuesday and Wednesday.
The ECMWF agrees with the GFS model that moderate to heavy rains will occur in central and eastern regions of the state by Monday afternoon/evening. The difference with the ECMWF is that some precipitation, possibly snow or a wintry mix, will impact western regions by Tuesday and then spread wintry weather towards the east into Wednesday.
Weather Model's Simulated Radar (12Z Run 11-14-2024)
American (GFS):
European (ECMWF):
Both models forecast significant amounts of precipitation for the state's eastern half.
Total Precipitation Amounts Forecasts:
The winds look to be firm with this system, as well. The GFS model shows wind gusts over 60mph for areas of the west as the ECMWF is moving towards gusts over 40mph in a few areas of the west.
Wind Gusts Forecasts:
American (GFS) Model:
European (ECMWF):
As this system remains several days out, many changes can come in future model runs. For the latest weather model maps and additional maps from the Canadian (GEM) model, check out our Weather Maps page.