Reservoir Report

Willow Creek Reservoir reservoir

Colorado, USA USBR
Today high
--
Tonight low
--
Current storage
7,009acre-ft
% of normal
-11%
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Right now · current storage
Willow Creek Reservoir
USBR · 100118
7,009 acre-ft
As of 2026-05-11
Seasonal avg
7,903
Record max
10,596
24h change
3.0%
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Willow Creek Reservoir -- None reservoir
Willow Creek Reservoir None
About this reservoir

Willow Creek Reservoir

Willow Creek Reservoir is a man-made body of water located in Grand County, Colorado. The reservoir was constructed in 1948 by the Colorado River Water Conservation District for agricultural and municipal purposes. The reservoir has a capacity of 1,100 acre-feet and is fed by Willow Creek, which is a tributary of the Colorado River. The primary purpose of the reservoir is to provide water for irrigation and municipal purposes in the surrounding area. Surface flows into the reservoir come primarily from Willow Creek and snowmelt from the surrounding mountains. The reservoir also provides recreational opportunities such as fishing and boating. It is known for its trout fishing and scenic views of the surrounding mountains. The reservoir is a popular destination for anglers and outdoor enthusiasts in the summer months.

StateNone
OperatorUSBR
Site ID100118
Percent of normal-11%
Last updated2026-05-11
Records since1953
Storage trends

Daily levels at Willow Creek Reservoir

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

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 Willow Creek Reservoir -- inflows here typically show up in storage 24-72 hours later.

Track Willow Creek 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 Willow Creek Reservoir

Where does the data for Willow Creek 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.

More reservoirs

Other water bodies near here

Snoflo-tracked reservoirs and dams within driving distance of Willow Creek 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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