Alexander Reservoir water level · HI
Wind forecast, gusts, and gage height for small-craft sailing at Alexander Reservoir (Alexander Reservoir Near Kalaheo).
USGS gauge 16051500 is not reporting right now, so there is no current level to show. Any recent history the gauge has published still appears in the chart below.
No current gauge data
USGS gauge 16051500 has no readings in the last 14 days — it may be seasonal, temporarily offline, or permanently discontinued. Wind forecasts and everything else for Alexander Reservoir are unaffected.
View this gauge on USGS.govNo recent readings
USGS 16051500
1,599ft
Gage height
21.9564°, -159.5258°
Alexander Reservoir Near Kalaheo
Gage height history
Gage height · USGS gauge 16051500
Reading the chart. This gauge reports gage height — the depth of water above the sensor reference point, not absolute elevation. Trends matter more than the absolute number: a falling trend means shrinking launch depth.
Water levels respond to dam operations, irrigation drawdown, snowmelt, and recent rainfall. For launch decisions, combine the trend here with the wind forecast — low water plus strong wind makes steep, tired ramps.
About this lake
- Location
- 21.9564°, -159.5258°
- Gauge datum
- 1,599 ft
- USGS gauge
- 16051500
- Water temp sensor
- No
Water level data comes from the USGS gauge above; wind is modeled for the lake’s coordinates by Open-Meteo. Always confirm conditions locally before launching — shorelines, ramps, and trees can all change what you feel on the water. West of the Rockies, wind follows the gaps: passes and river canyons channel strong flow onto the water, afternoons run windier than mornings, and mountain lakes in particular can build fast as the slopes heat up.
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