Waiahi Str Us Upper Powerhouse, Kauai, HI
USGS Site No: 16057900 • Waiahi Stream Us Upper Powerhouse, Kauai • Kauai County, HI
Waiahi Str Us Upper Powerhouse, Kauai, HI on the Waiahi Stream Us Upper Powerhouse, Kauai is currently at 26 cfs (Normal — 48th percentile for this date) . Gage height: 3.49 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 0 | |
| 25th | Low threshold | 19 | |
| 50th (Median) | Normal (median) | 27 | Today: 26 cfs |
| 75th | High threshold | 46 | |
| 95th | Very High threshold | 0 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 22 | — |
| May 27, 2026 | 25 | — |
| May 26, 2026 | 26 | — |
| May 25, 2026 | 31 | — |
| May 24, 2026 | 37 | — |
| May 23, 2026 | 35 | — |
| May 22, 2026 | 40 | — |
| May 21, 2026 | 68 | — |
| May 20, 2026 | 99 | — |
| May 19, 2026 | 69 | — |
| May 18, 2026 | 299 | — |
| May 17, 2026 | 78 | — |
| May 16, 2026 | 62 | — |
| May 15, 2026 | 33 | — |
| Apr 20, 2026 | 20 | — |
| Apr 19, 2026 | 21 | — |
| Apr 18, 2026 | 22 | — |
| Apr 17, 2026 | 23 | — |
| Apr 16, 2026 | 25 | — |
| Apr 15, 2026 | 27 | — |
| Apr 14, 2026 | 30 | — |
| Apr 13, 2026 | 37 | — |
| Apr 12, 2026 | 41 | — |
| Apr 11, 2026 | 66 | — |
| Apr 10, 2026 | 294 | — |
| Apr 9, 2026 | 640 | — |
| Apr 8, 2026 | 22 | — |
| Apr 7, 2026 | 53 | — |
| Apr 6, 2026 | 23 | — |
| Apr 5, 2026 | 18 | — |
Station Information
- USGS Site No
- 16057900
- State
- HI
- County
- Kauai County
- Coordinates
- 22.0227, -159.4651
- Drainage Area
- 4 mi²
- Datum (ft)
- 815.0
- HUC Code
- 20070000
Recent Extremes
- Max discharge
-
833 cfsMar 13, 2026
- Min discharge
-
14 cfsFeb 6, 2026
Computed from the local daily-values archive.
Nearby Gauges
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Eb Of Nf Wailua River near Lihue, Kauai, HINormal4.5 mi · 36 cfs
-
Sf Wailua River near Lihue, Kauai, HIHigh5.5 mi · 97 cfs
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Left Branch Opaekaa Str near Kapaa, Kauai, HIVery High5.7 mi · 4 cfs
-
Right Branch Lawai Stream near Umauma Road, Kauai, HINormal6.3 mi · 2 cfs
-
Hanapepe Riv below Manuahi Str near Eleele, Kauai, HIUnknown7.2 mi · 0 cfs