According to the advisory, the Athi River flooded earlyonWednesday morning, making the bridge linking Kitengela to Mombasa Road along Namanga Road impassable.
At the same time, the Kenya Meteorological Department said the rains would continue in various parts of the country for the next seven days.
'Floodingis expectedin low-lying areas, flood plains and urban areas with poor drainage,'said David Gikungu, director of the meteorological department.
Landslides could also occur on steep slopes where the soil is saturated, he added.
Gikungu has advised road users to be extra cautious as visibilityis likely tobe reduced during heavy rainfall.
The warning also extends to users of aircraft and boats.
The expected heavy rainfall is likelyto beaccompanied by strong winds, thunder and lightning, Dr Gikungu said.
'The public is advised to avoid sheltering under trees and metal structures to minimise exposure to lightning. Cautionis advisedas the predicted strong winds may damage roofs, trees and tall objects such as billboards,'headded.
He said the large waves and strong windswere likely toaffect marine activities.
