Real-Time Streamgages
A streamgage contains instruments that measure and record the amount of water flowing in the river or stream, or its discharge. Generally, these measurements occur automatically every 15 minutes or more frequently in times of flooding. The flood stage represents an established gage height at a given river location at which a rise in water surface level begins to impact lives, property, or commerce. Click here to learn more about streamgages from the USGS.
The National Weather Service Alaska Pacific River Forecast Center is one of thirteen River Forecast Centers in the National Weather Service. The center uses selected USGS stream stations to provide hydrologic forecasts and warnings for our area. When viewing their streamgages, the color of each streamgage indicates the current level of flooding or water at that stream. Below are links to ten different streamgages in waterways that have a direct impact on the City and County of Honolulu.
Waimanalo Stream near Waimanalo
North Halawa Stream near Quarantine Station
