Rain is Coming But Not for Everyone

Looks like we will be seeing some rain over the next couple of days. But not everyone is going to get wet. The rain will likely be confined to the I-29 corridor and points eastward. The models have really increased the amount of rain that they think we will see over the last 24 hours and in some cases doubled and tripled it now. For the most part, none of it will be all that heavy but some areas could really begin to add up by Tuesday night and Wednesday. Here is what a couple of the models are predicting for the upcoming couple of days.

Rainfall Totals through Monday afternoon:

Rainfall Totals through Tuesday morning:

The stationary boundary can be seen on this map. The wind barbs in far eastern South Dakota are coming out of the northwest and the wind barbs in far western Minnesota are coming out of the south southeast. This is indicative of some sort of boundary in between those areas. In this case the stationary boundary I was talking about:
Notice that there is a pretty small area that will be seeing the rain through Tuesday morning. But I'm sure you are wondering why all of the rain is in a straight line right over I-29. Well it looks like the focal point for most of the rain will be a left over stationary boundary. The model has it stalling north to south right over I-29. However, I do think that the model is putting too much emphasis on the stalled front so I think there will be showers a bit more widespread then what the model shows. Case and point; look at what the Hydrological Prediction Center has for rainfall amounts between now and Wednesday night.They have the most rain falling just south of Sioux City at nearly 2". Now the HPC is typically on the high side of potential precipitation however, 1" of rain is definitely possible in isolated spots. But a quarter to a half inch will probably be a lot more common.

~KDLT Meteorologist Cody Matz