| Year | R1 | R2 | Impact |
| 1980, 1982, 1987, 1989, 1992 and 1996 | Drought | Affected 1.1 million affected and various economic activities are damaged | |
| 1982, 1989, 1991, 1997, 2002 and 2015 | Drought | Affected 1.263 million people from Kenya, Uganda, Sudan, Djibouti and Ethiopia | |
| 1995, 2000, 2007, 2010, 2011, 2014 and 2016 | Flood | 150 people are died due to sudden flood and more peoples displaced and various infrastructure damaged | |
| 1988, 1995, 1998, 2006, 2008 and 2010 | Flood | Flood displaced more than one million peoples from Kenya and Somalia |