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Rainy & Possibly Snowy Week Ahead



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Over the past couple of weeks, with the exception of just a couple of days, we’ve gotten quite a taste of spring. After all, we are almost a week into the month of April and our average highs should be in the lower 50s. We did start out this week on a rather chilly note, but after a few days with plenty of sunshine; the warmer temperatures and we warmed up quite a bit.




In fact, Friday was one of the warmest days we’ve had this year—but not necessarily for everyone. Places like Winner and Valentine warmed up to about 80 degrees, while Sisseton struggled to get out of the 30s. That created a spread of over 40 degrees across our entire region.




While it has been nice, we are in much need of moisture and for the first time in quite a while; it looks like we may get it. A few different systems will be pushing through the Upper Midwest bringing a shot of rainfall to our region just about every day. Here’s a look at what our Futurecast Rainfall model is putting out as far as rainfall goes through Monday night.




As you can see, there’s quite a bit of rain in the forecast—especially across parts of the southeast. Locations like Sioux Falls, Spencer, and Worthington may pick up somewhere between a half to three quarters of an inch while other locations across the central portion of the state may struggle to pick up even a quarter of an inch.

That doesn’t mean there is no hope, though. The system that comes through behind the first one has much more potential to bring quite a bit of moisture. In fact, it doesn’t only bring quite a bit of moisture to the area; but it also comes with colder temperatures and even snow.

Yes, we’re still talking about snow; and no, I’m not talking about just a little bit. It does look like it will all start out as rainfall on Tuesday, but depending on how quickly the cold air filters in on the back end of this system; we will likely see this change over to snow sometime Tuesday afternoon or Tuesday night going into Wednesday morning.

Not only is the timing of the transition an issue, but the position of the system and exactly where the snow will set up. At this point, models have come to some agreement that parts of central South Dakota will see this snow; but models are just now shifting this south and east. Here’s a look at one model, run at separate times.



12Z GFS Accumulating Snowfall


18Z GFS Accumulating Snowfall

Both runs are showing quite a bit of snow, which I would certainly take with a grain of salt. Since quite a bit of this will be falling in the form of rain, this may be off by several inches. Also, this may be a wetter snow, so that would mean we may have to cut back on the totals. Either way, it could be good news for farmers across the Upper Midwest as there is quite a bit of moisture associated with this system.

Of course, we still have a couple of days before this storm actually reaches our area and a lot that happens with this first system will affect what happens with the big one. As always, we will keep you updated here at KDLT with any precipitation chances, no matter what form it may come in. 
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