Invisible Drought in Some Stations above Latitude 90N of Nigeria

This study is on invisible drought occurrence and reoccurrence in the Sudan-Sahel region of Nigeria. The region is prone to drought occurrence. Data used were from 1941 to 2010 and for eight stations scattered over the region. The Bhalme and Mooley Drought Index (BMDI) was used to characterize drought occurrences. This was with the intention of finding out the percentage of invisible drought occurrence over a 70 year period (1941-2010). There is statistical evidence of increasing invisible drought. Apart from these, other findings concerning the occurrences of invisible droughts in the decades and sub-periods used for the study were made and are in the study. Measures on how to ameliorate the effects of droughts, especially invisible drought on the populace and environment were suggested. These suggestions when implemented collectively will reduce the effects of invisible drought in the study area.