Storm Center Update - Sunday PM

The large storm system taking over the Plains is now well to our south.  Any added moisture we see will be on the northern edges and should be comparatively light.  A brief warming trend will follow for some tomorrow before cold air puts an end to that by Tuesday. 
First, tonight.  Radar trends keep pushing light moisture along and south of I-90.  The Hills got the best of the moisture as expected but we could see some light snowy mix late tonight.  There are also a few thin pockets of flurries north of Aberdeen and it is still possible for many to pick up flurries or a dusting East River.  This would be most likely tonight or early tomorrow before drier air cuts in.  The far west should actually be cooler tonight, due to clearing skies.  The east should retain at least some milder lows with clouds overhead.  Those gloomy skies could lead to patchy fog, something we’ve seen the past two nights. 
Light snow is possible in NW Iowa early tomorrow but I think most will be just to our south.  We’ll keep in the slimmest chance for Sioux Falls with clearing skies to the north and west.  Winds should not be a big factor in our weather tomorrow but should noticeably pick up on Tuesday.  A cold front will move through and we’ll have cooler than normal highs to end February. 
The big system will return to the Upper Midwest late Tuesday and into Wednesday.  The bulk of the action will be well to the east, closer to Wisconsin.  Still, the very back end could reach far eastern KELOLAND, Sioux Falls included.  The chances are fairly low-end but one computer model still wants to bring a couple of inches of new snow.
We’ll warm up into next weekend but there could be some more activity brewing late next Sunday and into Monday.