A series of shortwaves have been making there way through the northern plains with a stronger one forecast to move thorugh the Dakotas Friday afternoon/evening. The differences in the timing among the models is the only thing that concerns me. Both the GFS and NAM show good instability and deep layer shear for supercells with the NAM forecasting very high, low-level shear values enhancing the overall tornado threat if it verifies. I might be making this trip so stay tuned. Early target would be somewhere near Euraka - Aberdeen, SD.