The Harris County Flood Control District Flood Warning System measures rainfall amounts and monitors water levels in bayous and major streams on a real-time basis to inform citizens of dangerous weather conditions. The system relies on 133 gauge stations strategically placed throughout Harris County bayous and their tributaries. The stations contain sensors that transmit valuable data during times of heavy rainfall and during tropical storms and hurricanes. Some gauges also measure wind speed and direction, barometric pressure, air temperature, road temperature and humidity. The purpose of the Flood Warning System website is to provide information collected by the gauges in a user-friendly format directly to you.
This information is used by the Flood Control District and by Harris County Office of Homeland Security and Emergency Management to inform citizens of imminent and current flooding conditions along bayous. It also is used by the National Weather Service to assist in the issuing of flood watches and warnings. Accurate rainfall and bayou/stream level data help citizens and emergency management officials make critical decisions that ultimately can reduce the risk of property damage, injuries and loss of life. The Flood Control District urges citizens and their families to use this information and take the appropriate precautions during times of heavy rain and flooding. Citizens are encouraged to monitor bayou/stream levels near their homes, places of work and areas along their daily commutes. This website also provides information on historical rainfall and flooding events, Harris County watersheds and frequently asked questions.
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