Model Flood Early Warning System on River Nzoia-Kenya

Daniel W. Wepukhuludnlwepukhul@yahoo.com

Kenya Meteorological Service (KMS)K E N Y A

Mult i purpose Weirs and check dams to check silts from being transferred to the floodplain

Middle catchment design of a large multi purpose dam

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NZOIA BASIN REAL-TIME STATE-OF-THE-ARTMONITORING SYSTEM: NETWORK

HydroMET Automatic Weather Stations (AWSs)

•Flood monitoring equipment•Timely detection of heavy rainfall over the basin

Automatic Radar River Level Stations•Flood monitoring equipment•Early detection of dangerous water levels

Meteorological Satellite Images

•Detection of severe weather

CENTRAL BASE STATIONS

FORECAST CHART

FLOOD DIAGNOSTICS AND FORECASTING (WARNING) CENTRE DATA ACQUISITION FLOOD FORECASTING MODEL-GFFS

FLOW FORECASTING MODEL

MODEL INPUTS•Observed Areal Rainfall•Observed Discharge/River Flow•Observed Evapotranspiration•Rainfall Forecast

Use of Colour Codes: Green-No RiskAmber: Medium RiskRED: High Risk

EARLY WARNING BULLETIN

Description Range Colour codes

Remark

Flood Warning level (m)

>5.0 m Above this point flooding can occur

depending on strength of the dykes

Alert levels 4.0 -5.0 m Watch

No risk < 4.0m Safe

DISSEMINATIONEmail listThe OP-Ministry of State for Special ProgrammesNational Disaster Operations Centre (NOC)Red CrossMedical/Health/SchoolsReligious OrgNGOsCounty/District/Community Disaster Management Committees, etc]Radio Broadcasts: RANET Community FM Radio StationInternet website

WELL COORDINATED AND TIMELY RESPONSE PLAN

THANK YOU Arigato Gozaimasi

Asante Sana!