Heavy rainfall is expected in Wajir, Garissa, parts of Isiolo, Marsabit and Mandera Counties from Tuesday evening 26th to 28th March 2019.
Residents in low-lying areas and dry river-beds are advised to be on the lookout for flash floods.
The meteorological department says heavy rainfall of more than 30mm is likely to continue on Thursday 28th March 2018 over the northern parts of Wajir and Marsabit counties.
Moderate wet weather is also expected over the Western parts of the Country and the Central Highlands.
The weatherman has warned that flood waters may suddenly appear in places where it has not rained heavily and may be deep and fast moving. Residents are advised to keep to safer grounds until the flooding subsides.
In the next seven-days, rainfall is also expected over several parts of the country during the forecast period.
According to the forecast, the Lake Victoria Basin, Highlands West of the Rift Valley, Central and South Rift Valley (Counties of Siaya, Kisumu, Homabay, Migori, Kisii, Nyamira, Trans Nzoia, Baringo, Uasin Gishu, Elgeyo-Marakwet, Nandi, Laikipia, Nakuru, Kericho, Bomet, Kakamega, Vihiga, Bungoma and Busia) are likely to experience sunny intervals in the morning.
In the evening, showers and thunderstorms are expected over several places on Wednesday and Thursday and over few places on the other days.
Northwestern (Counties of Turkana, West Pokot and Samburu) are likely to experience sunny conditions during the day and clear skies at night for much of the forecast period.
However, morning rains will be experienced over few places on Wednesday, Thursday and Sunday.
During the first half of March 2019, sunny and dry weather conditions prevailed over most parts of the country, with the first two weeks of the month recording high daytime and nighttime temperatures.