Lake Havasu reservoir
Lake Havasu
Lake Havasu is a reservoir located on the Colorado River in Arizona. It was formed in 1938 after the completion of the Parker Dam, which created a water storage capacity of 648,000 acre-feet. The lake is a popular spot for boating, fishing, and watersports, and it is home to many species of fish, including largemouth and striped bass. The hydrology of the lake is influenced by the snowpack in the mountains surrounding the Colorado River basin, as well as specific surface flow from tributaries such as the Bill Williams River. The lake also serves as a source of water for agricultural irrigation in the surrounding area. In addition to recreational and agricultural uses, Lake Havasu plays an important role in generating hydroelectric power and maintaining water levels downstream.
Daily levels at Lake Havasu
Storage volume, pool elevation, and total release plotted from the operating agency's daily observations.
Storage
acre-ft · code 17
Pool Elevation
ft · code 49
Total Release
cfs · code 42
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Lake Havasu -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Colorado River Below Parker Dam | 2,300 cfs | → |
| Bill Williams River Near Parker | · | → |
| C.R.I.R. Main Canal Nr Parker | 1,230 cfs | → |
| Gardner Lateral Spill Near Parker | 4 cfs | → |
| Poston Wasteway Near Poston | 56 cfs | → |
| Bill Williams River Below Alamo Dam | 36 cfs | → |
About Lake Havasu
Where does the data for Lake Havasu come from?
Daily storage, pool elevation, and release rates are sourced from USGS, USBR, and USACE monitoring stations. Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
Storage observations are updated daily by the operating agency. The 15-day weather forecast refreshes throughout the day. Snoflo caches and renders the most recent observation -- check the "as of" timestamp on the storage card.
What does the Hazard hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card below for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this reservoir, set a threshold, and you'll get a push the moment conditions cross.