- NIHSA's newest advisory covers 17 states, eight at high risk, from 28 September to 4 October
- River floods often follow rain that fell far upstream days earlier
- Act early: move people, livestock and valuables to higher ground
How Nigeria’s flood warnings work, and how to read the next alert
A NIHSA alert put parts of 15 states at high flood risk last week. Here is the science behind the forecasts and what each warning asks you to do.
Updated 18:23 WAT, 30 Sep 2026: NIHSA has issued a new flood advisory covering 17 states from 28 September to 4 October, with eight at high risk. Last week the flood warnings came thick and fast. The Nigeria Hydrological Services Agency (NIHSA) issued an alert, coded NFA-2026-262, placing parts of 15 states at high risk of flooding between 19 and…