Heavy Rainfall Alert Issued for Several Regions as Flood Risk Rises

The Kenya Meteorological Department has issued a heavy rainfall alert for large parts of the country, warning residents to prepare for possible flooding from Saturday, February 21, to Wednesday, February 25, 2026.

The advisory covers counties in the Lake Victoria Basin, the Rift Valley, and the Highlands east and west of the Rift Valley, including Nairobi. The rains are expected to spread to the South-eastern Lowlands and the Coastal region, especially the South Coast.

According to the department, rainfall in affected areas may exceed 20 millimetres within 24 hours on Saturday and could intensify to more than 30 millimetres daily from Sunday through Tuesday, February 22 to 24. The intensity is expected to reduce on February 25.

Counties listed as high risk include Migori, Nyamira, Bungoma, Kakamega, Embu, Murang’a, Nyeri, Tharaka-Nithi, Kisii, Narok, Kajiado, Makueni, Machakos, 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 Kenya Met Acting Managing Director Edward Muriuki.

Residents have been advised to avoid driving or walking through moving water, remain cautious in open fields, and watch for flash floods in low-lying and riverine areas.

“Flood waters can move fast and may appear downstream from areas that are currently dry. People must exercise extreme caution,” Muriuki added.

The alert comes after weeks of sporadic rainfall across the country, with some areas already reporting waterlogging and minor flooding. Meteorologists say the rains are part of seasonal weather patterns but could intensify due to changing climatic conditions.

Local authorities in high-risk areas have been urged to clear drainage systems, prepare schools and public facilities for possible disruptions, and keep emergency services on standby.

Residents in Nairobi and surrounding counties are encouraged to monitor updates through official Kenya Met platforms and follow county-specific forecasts to better understand local risks.

The department noted that although the probability of heavy rainfall is moderate, between 33 and 66 percent, the potential impact in flood-prone areas could be significant.

“Even a moderate probability should not be taken lightly. Early action saves lives and reduces property damage,” Muriuki said.

Kenya has previously experienced severe flooding during heavy rains, leading to loss of life, destruction of property, and disruption of transport networks. The advisory remains in effect from February 21 at 3 p.m. until February 25 at 6 p.m., with updates to be issued as conditions change.