September 1st Assessment and 2nd outlook ,2025

Bulletin

Moderate to high surface water flows are forecast for most Kiremt moisture-benefiting catchments during the period of September 11-20, 2025; this is expected to significantly enhance surface and groundwater recharge, increasing water levels in ponds and reservoirs and improving water resources for both natural systems and man-made infrastructure. However, the significant rainfall captured in the previous dekade has saturated the ground, increasing the risk of flooding, and there is a high probability of flash floods and elevated river flows, particularly in flood-prone basins. Riverine flooding and inundation present a particularly high risk in the lower reaches of basins such as the Tekeze, Abay, Omo Gibe, and Lower Awash which receive water from upper catchment areas; consequently, communities residing along river banks, in wetlands, and in swamplands are advised to exercise heightened caution.