Nairobi, Kenya is reeling from devastating floods after an unprecedented deluge swept through the city, resulting in at least 10 confirmed deaths. Torrential rainfall, beginning late Friday and continuing through Saturday, overwhelmed drainage systems and led to widespread disruption, trapping over 70 vehicles and causing significant damage to infrastructure. The extreme weather event saw 112mm of rain fall within a 24-hour period – exceeding the average monthly rainfall for March, which is typically 92.2mm, by more than 20%.
The crisis unfolded despite warnings issued by the Kenya Meteorological Department earlier in the week. A moderate to heavy rainfall advisory was in effect from Tuesday, March 3rd, to Monday, March 9th, with the heaviest downpours anticipated between Wednesday and Saturday. Areas including Westlands, Dagoretti, Roysambu, and Embakasi were specifically identified as being at high risk of flooding.
The rapid accumulation of rainfall, exceeding even historical records, caught many residents off guard. While Nairobi has experienced heavy rainfall in the past – including 189.1mm in a single day in May 2015 – the intensity of this event, and the concentration of rainfall within such a short timeframe, proved particularly destructive. The Kenya Meteorological Department’s Facebook page issued an update on March 7th regarding the ongoing heavy rainfall advisory, active until 9 March 19:00 EAT.
Understanding Nairobi’s Rainfall Patterns
Kenya’s geographical location just south of the equator results in a “bimodal seasonality,” characterized by two distinct rainy seasons. These seasons are driven by the movement of the Intertropical Convergence Zone (ITCZ), a band of low pressure that circles the Earth and shifts with the sun. The current heavy rains are part of the “long rains” season, triggered as the ITCZ moves northward between March and May. A second wet period, known as the “short rains,” occurs between October and December as the ITCZ migrates southward.
The recent rainfall event highlights the vulnerability of urban areas to extreme weather. In April 2018, Nairobi experienced exceptionally wet conditions, with a total of 495mm of rain falling – almost five times the monthly average – though this rainfall was spread out over a longer period. The current situation, with a concentrated burst of rainfall, has overwhelmed the city’s capacity to cope.
Impact and Response
The immediate aftermath of the flooding has focused on rescue efforts and providing assistance to those displaced by the disaster. At least eight deaths were attributed to the flooding itself, with an additional two fatalities linked to electrocution. Authorities are working to clear blocked roads and restore essential services. The Kenya Meteorological Department (@MeteoKenya) on X (formerly Twitter) has continued to emphasize that the weather advisory remains active until March 9th, warning that the ground is saturated and further flooding is possible.
The Kenya Meteorological Department can be contacted for further information at [email protected] or by phone at +254 20 3867880-5, +254 724 255154. Their offices are located at Dagoretti Corner, Ngong Road, P.O Box 30259, 00100 GPO Nairobi, Kenya.
What to Expect Next
As the current rainfall advisory period nears its end on Monday, March 9th, authorities will likely focus on assessing the full extent of the damage and implementing measures to prevent similar disasters in the future. Improved drainage infrastructure and early warning systems will be crucial in mitigating the impact of future extreme weather events. Residents are urged to remain vigilant and heed any further advisories issued by the Kenya Meteorological Department.
Please share your thoughts and experiences in the comments below. If you have been affected by the flooding, resources and support may be available through local organizations and government agencies.
