Scattered Storms Today, A Nice Weekend Ahead

Today will be partly to mostly cloudy, warm and humid. High temperatures will only reach the mid 80s but the dew point will be back in the upper 60s to low 70s which will make it feel sticky. Thunderstorms will develop along east of the James River by early to mid afternoon and move east into Iowa and Minnesota by early evening. Some storms could be severe with large hail and damaging straight-line wind being the main threat.

After the storms roll out, drier air from the northwest will roll in. Tomorrow will be sunny with temperatures similar to today, but it will be a lot less humid. The weekend will be partly cloudy with highs in the mid 80s. An isolated late afternoon or nighttime thunderstorm is possible, especially across northern South Dakota.


Severe Storms Likely Tonight

The storm prediction Center has issued a moderate risk for severe storms across much of South Dakota and portions of Iowa, Minnesota and Nebraska. Storms will develop across western and central South Dakota by late this afternoon and move east through the night tonight.

As storms initially develop across central and western South Dakota, there will be the potential for large hail and possibly even a tornado or two. As storms progress eastward, they will evolve into a line of severe storms and the primary severe threat will transition to damaging straight-line wind gusts in excess of 70 or 80 mph.

As of right now, I think that storms are move into to central South Dakota by early evening, the James Valley after 9 or 10 PM, and into the Sioux Falls area and places along I-29 after 10 PM, possibly as late as midnight. Storms will then progress into Iowa and Minnesota during the early morning hours. Timing could change a bit depending on where and when storms develop. Be sure to stay tuned throughout the day for the latest developments.


Sunny & Warmer Today… Watching a Possible Winter Storm

We are keeping an eye on a winter/spring storm system that could bring accumulating snow to parts of our region later this week. More on that in a sec… Before we get to the snow, I have a couple of really nice days to tell you about.

Today will be mostly sunny, warm and not terribly windy with highs in the mid to upper 50s. Central South Dakota will be quite a bit warmer with highs ranging from the mid 60s in Pierre to the mid 70s in Gregory, Winner and White River. Tomorrow won’t be quite as warm in central South Dakota, but we will warm back into the low 60s in the Sioux Falls area.

Of course, the “big talker” this morning is the possibility of snow later this week. It’s true, part of our region could get several inches of snow late Tuesday night and Wednesday. Our latest models are suggesting the potential for four or more inches. At this point it is way too early to get specific with a track, but it looks like the best chance for snow accumulation will be a long and south of line that runs from Marshall to Mitchell to Winner. In addition to snow, strong wind gusts will create blowing snow Wednesday afternoon and Wednesday night into Thursday.

Don’t make any major decisions yet, there’s a lot that could change with the storm system. Snowfall amounts will depend largely on how fast cold air wraps its way into the system and changes rain to snow. The track is also still uncertain… A couple of our forecast models still take this system well south of our area. I’ll be watching things closely as the system develops and will have updates as things change.