(1) From May the progression of the ITF was characterized by a slow northward advancement relative to its movement during the third dekad of April

The eastern portion of the ITF was approximated at 12.8 degrees North, which was two degrees south of the previous dekadal position and behind the climatology mean position by

From June 11−20, 2011, the ITF shifted north of the climatology mean over its western and eastern segment, in contrast to its position relative to the climatology mean during

From May 11−20, 2011, the western segment of the ITF continued its northward advancement and now coincides with the climatology mean position, while its eastern segment

A major proportion of the ITF is now ahead of the climatology mean position due to enhanced southerlies in the Gulf of Guinea region and moisture convergence from the Congo

The greatest southward retreat of the ITF occurred in the far western Sahel, while prevailing southerlies agross the Gulf of Guinea region, and ample moisture were

From October 11−20, 2010, the ITF maintained a significantly northward position across much of the Sahel, resulting in anomalously high moisture and ample rainfall throughout

Compared to the previous dekad, there was a notable decrease in heavy rains and high moisture observed across many areas in the far western Sahel, while moderate amounts of

The mean eastern portion of the ITF was approximated at 14.8N, which continues the seasonal southward progression of the ITF over eastern Africa and remains near the