Streamflow discharge was last observed at 2 cfs, and a gauge height of feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 2 .
Weather today, Tomorrow,
The tunnel is not associated with any specific related tributaries or dams, and seasonal trends show that flow levels tend to increase during the wet season and decrease during the dry season. Interestingly, the Opana Tunnel is known for its historical significance, as it was used by Native Hawaiians for irrigation and transportation purposes in the past. Today, the tunnel is used primarily for monitoring and research purposes, providing valuable insights into the complex hydrological processes that shape Hawaii's unique landscape.
| Elevation | 2,338.0 ft |
| Last Updated | |
| Gauge Height | ft |
| Observed Discharge | cfs |
| Percent of Normal | % |
| Year Over Year Average | cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | cfs |
| Geolocation | 20.85, -156.27 |