It begins now "mount" the low pressure system to the SW RAM, and will measure the height disturbance is approaching and with acopolando vortice surface is expected to form a region unstable around the sector S / E / N of depression (in purple):

This first banda instability seems to be showing some shear, visible in V formation the tops of cells ...

So we can have some more organized convection, SCM's, maybe a few lines and a possibility of convective genesis of some supercells capable of bringing strong winds.

Rainfall is abundant.

After the passage of this unstable band, the RAM will be affected more by the north and central sector of the depression, with strong convection bands but a low shear environment which does not favor the formation of severe cells.

However keeping the prediction of strong thermodynamic forcing, which creates an environment very favorable to the occurrence of heavy precipitation and convective orographic origin.

As for the wind, will be even stronger NW of downtown, and RAM can be affected by this band of strong winds, with a preponderance of the E quadrant with average speeds between 60 and 75km.h gusting between 11 and 130km.h .

So now from the beginning / middle of the afternoon the thing tends to aggravate rather ... [link to www.meteopt.com]