There is tremendous shear over the area. If your eyes are not yet trained to discern shear, you can always find a professional shear analysis here, from CIMSS. The hotter the color, the greater the shear. Basically, your yellows to oranges are unfavorable. Getting into the reds, brighter reds, hot pink and finally white is highly unfavorable to impossible (for tropical cyclones to form and/or survive).
Right now the high shear over the region is fanning the convection: showers and storms.. but preventing any kind of (tropical cyclone) organization from taking place. The shear will need to relax quite a bit before this area becomes hospitable.
|