Authorities have warned of heavy rainfall across Kenya starting Saturday, February 21, with the potential for floods affecting several counties, including the capital Nairobi.
The Kenya Meteorological Department (KMD) says the alert will last through Wednesday, February 25, covering the Lake Victoria Basin, Rift Valley, Highlands on both sides of the Rift, and parts of the South-eastern Lowlands and Coastal areas, especially the South Coast.
The department predicts that rainfall in affected areas may exceed 20mm within 24 hours on Saturday and could rise to more than 30mm daily from Sunday to Tuesday (February 22–24).
Meteorologists expect the rain to reduce by February 25.
High-risk counties include Migori, Nyamira, Bungoma, Kakamega, Embu, Murang’a, Nyeri, Tharaka-Nithi, Kisii, Narok, Kajiado, Makueni, Machakos, Nairobi, Kericho, Bomet, Taita-Taveta, Kitui, Kwale, Mombasa, southern Tana River, and parts of Kilifi.
“We urge residents to take precautionary measures and monitor official updates closely. Heavy rainfall can cause sudden flooding even in areas that might not have experienced significant rain, so preparedness is critical," said Edward Muriuki, Acting Managing Director of KMD.
The department advised people to avoid crossing flowing water, remain cautious in open areas, and watch for flash floods in low-lying and riverside regions. “Flood waters can move fast and may appear downstream from areas that are currently dry. People must exercise extreme caution,” Muriuki added.
This warning comes after weeks of scattered rainfall, with some locations already reporting waterlogged streets and minor flooding. Experts note that while these rains follow seasonal patterns, changing climate conditions could increase their intensity.
Local authorities in the most affected counties have been asked to clear drainage channels, prepare schools and public spaces for possible disruptions, and keep emergency services on alert.
Residents in Nairobi and neighboring counties are encouraged to follow updates from KMD via its website, WhatsApp, and FASTA-Ken, and to pay attention to county-specific forecasts to better understand local risks.
Although the probability of heavy rain is considered moderate (33%–66%), the consequences in flood-prone regions could be serious. "Even a moderate probability should not be taken lightly. Early action saves lives and reduces property damage,” Muriuki emphasized.
Kenya has previously experienced destructive floods following heavy rain, resulting in fatalities, damaged property, and interrupted transport systems. Authorities are reminding residents to relocate valuables to safe areas and avoid walking or driving through floodwaters.
The alert will remain in force from 3pm on February 21 until 6pm on February 25, with updates issued as conditions evolve.
