Reservoir Report

Moon Lake Reservoir reservoir

Utah, USA USBR
Today high
--
Tonight low
--
Current storage
30,752acre-ft
% of normal
38%
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Right now · current storage
Moon Lake Reservoir
USBR · 930
30,752 acre-ft
As of 2026-05-12
Seasonal avg
22,333
Record max
38,772
24h change
0.7%
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Moon Lake Reservoir -- None reservoir
Moon Lake Reservoir None
About this reservoir

Moon Lake Reservoir

Moon Lake Reservoir is a man-made lake located in the Ashley National Forest in northeastern Utah. The reservoir was constructed in the early 1900s to store water for agricultural purposes in the Uinta Basin. The water in the reservoir comes from snowmelt and surface runoff from surrounding mountains. The reservoir is also fed by the White River and tributaries. The water is used for irrigation in the surrounding agricultural areas and for recreational purposes such as fishing, camping, and boating. The reservoir has a capacity of over 76,000 acre-feet and covers an area of 2,800 acres. The surrounding area is popular for outdoor activities, including hiking, hunting, and snowmobiling in the winter. Moon Lake Reservoir is an important source of water for the region and provides significant benefits to the local communities.

StateNone
OperatorUSBR
Site ID930
Percent of normal38%
Last updated2026-05-12
Records since1974
Storage trends

Daily levels at Moon Lake Reservoir

Storage volume, pool elevation, and total release plotted from the operating agency's daily observations.

Storage

acre-ft · code 17

Inflow

cfs · code 29

Pool Elevation

ft · code 49

Total Release

cfs · code 42

Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Moon Lake Reservoir -- inflows here typically show up in storage 24-72 hours later.

Track Moon Lake Reservoir in the Snoflo app

Save this reservoir as a favorite and set push alerts when storage crosses a threshold (e.g. "alert me at 80% of normal").

FAQ

About Moon Lake Reservoir

Where does the data for Moon Lake Reservoir 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 above 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.

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Other water bodies near here

Snoflo-tracked reservoirs and dams within driving distance of Moon Lake Reservoir.

Premium feature

Favorites and alerts are part of Snoflo Premium. Save reservoirs, set storage thresholds, and get push notifications when conditions cross.

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this reservoir, set a threshold, and you'll get a push the moment conditions cross.

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