Reservoir Report

Uvas Reservoir reservoir

California, USA USBR
Today high
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Tonight low
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Current storage
8,121acre-ft
% of normal
-5%
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Right now · current storage
Uvas Reservoir
USBR · UVA
8,121 acre-ft
As of 2026-05-11
Seasonal avg
8,516
Record max
10,182
24h change
-0.3%
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Uvas Reservoir -- None reservoir
Uvas Reservoir None
About this reservoir

Uvas Reservoir

Uvas Reservoir is a man-made lake located in Santa Clara County, California. The reservoir was created in 1957 as a part of the Uvas-Carnadero Project, which was designed to provide water to agricultural and urban users. The reservoir has a capacity of 22,000 acre-feet and is supplied by both surface flow from Uvas Creek and snowmelt from the nearby Santa Cruz Mountains. The water from the reservoir is used for irrigation and drinking water purposes. The surrounding area is also used for agricultural purposes, including the production of grapes, almonds, and hay. Additionally, the reservoir is used for recreational activities such as fishing, boating, and hiking. The Uvas Reservoir plays an important role in both the hydrology and economy of Santa Clara County.

StateNone
OperatorUSBR
Site IDUVA
Percent of normal-5%
Last updated2026-05-11
Records since2021
Storage trends

Daily levels at Uvas Reservoir

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

Storage

acre-ft · code 2

Pool Elevation

ft · code 1

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

Track Uvas 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 Uvas Reservoir

Where does the data for Uvas 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 Uvas 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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