Most of the info you need is in the top left chart. Green line is dew point, red is temperature, white lines are standard pressure liens, red tick marks are altitude in km and the wind is the white wind barbs on the right side.
What it is telling you is that there is no cap on the atmosphere giving the storms room to grow as big as they want. Also with the wind there is plenty of direction and speed wind shear to help the storms rotate.