The brown area, which includes Aberdeen in South Dakota, has a significant risk of tornadoes later today. Please keep up on the weather in this area. 

I've written up fewer of the National Weather Service's missed tornado warnings this summer because I fear they have become repetitive reading. However, because yesterday evening's situation in northern South Dakota was straightforward, it is quite concerning no tornado warning was issued.   I am publishing the Twitter/X advisories that I provided to my followers not to boast but to disprove the National Weather Service's (NWS) past contentions of "Monday morning quarterbacking" which are silly. That said, if I was able to provide advance warnings from Wichita, there is no reason the NWS local office serving northern South Dakota couldn't, also.  6:14pm Advisory: While there were issues with the North Dakota tornado situation ("T" above), let's focus on South Dakota in this posting. The southern circle (orange arrow) showed an area of rapidly increasing rotation (right panel, below) in the Doppler wind data.  If the NWS or other organization ...

In addition to tornadoes, here is also an enhanced risk of hail 2" in diameter or larger in the yellow area.  As of 4:50pm, the first thunderstorm is forming on the border south of Bismarck. Please monitor the weather the rest of the evening!

It is looking like a winter storm will be developing over the northern Great Plains over the weekend.  Sunday and Sunday Night At lower left is the probability of 4" or more of snow. It is also possible there will be strong winds with this storm. So, I recommend those traveling on I-90 and, especially, I-94 begin looking at alternate routes. Note also the high probability of heavy snow over the Sierra.  Monday and Monday Night With Monday's snow, preliminarily, amounts may be high over parts of Minnesota and the eastern Dakotas. Again, consider the possibility of re-routing a road trip. If you are planning to fly through Minneapolis, you may wish to consider a re-route through Northwest's Detroit hub, if possible.  Update 4:45pm: The National Weather Service is also raising the alarm .