Lake Mead reservoir
Lake Mead
Lake Mead is a reservoir located on the Colorado River in Nevada. It was created in the 1930s by the construction of the Hoover Dam. The lake is crucial for the hydrology of the region, supplying water to surrounding areas for agriculture and other uses. In recent years, however, the lake has experienced a decline in surface flow due to drought and overuse. Snowpack from the Rocky Mountains is a significant contributor to the lake's water supply. The lake is also used for recreational purposes, including fishing, swimming, and boating. However, the lake's water levels have been decreasing, leading to concerns about the future of these activities. The ongoing management of Lake Mead and the Colorado River is critical to the sustainability of the region's water resources.
Daily levels at Lake Mead
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 Mead -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Lv Wash Blw Lake Las Vegas Nr Boulder City Nv | 331 cfs | → |
| Las Vegas Wash Overflow At Lake Las Vegas Inlet | · | → |
| Lv Wash Ab Three Kids Wash Blw Henderson | 309 cfs | → |
| Las Vegas Wash At Pabco Rd Nr Henderson | 338 cfs | → |
| Duck Ck At Broadbent Blvd At East Las Vegas | 8 cfs | → |
| Las Vegas Wash At Vegas Valley Dr Nr Las Vegas | 42 cfs | → |
About Lake Mead
Where does the data for Lake Mead 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.