As we turned the page to July, we finished night 4 in Belle Fourche and
were greeted by some sort of Miss South Dakota audition in the hotel
this morning. Sorry to have to leave! The forecast for today will take
us to northeast Montana as another large trough deepens off the NW
Pacific coast, sending several disturbances across this region. In the
wake of a remnant sfc trough over the eastern Dakotas, morning sfc data
shows a nice fetch of ESE winds across ern MT into the wrn Dakotas, with
favorable upper 50-low 60s dewpoints returning westward along a
developing warm front. This will occur beneath an increasing fetch of
strengthening SW flow aloft, yielding a nice combination of moderate
instability and favorable deep layer shear for a few supercells across
the eastern MT prairies late this afternoon and evening. Will stage near
Circle, MT this afternoon.
