Reservoir Report

Relief reservoir

California, USA USBR
Today high
--
Tonight low
--
Current storage
12,322acre-ft
% of normal
-2%
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Right now · current storage
Relief
USBR · RLF
12,322 acre-ft
As of 2026-05-12
Seasonal avg
12,560
Record max
17,727
24h change
-0.3%
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Relief -- None reservoir
Relief None
About this reservoir

Relief

California relief is characterized by a variety of hydrological systems, including surface flow and snowpack. The state has experienced severe droughts in the past, leading to water scarcity and agricultural losses. However, thanks to the sophisticated water management systems in place, relief has been provided through reservoirs, canals, aqueducts, and groundwater recharge. The main water providers in California are the California State Water Project and the Central Valley Project, which supply water to urban, agricultural, and recreational areas. Additionally, snowpack in the Sierra Nevada Mountains serves as a vital source of water for the state, with winter storms providing the majority of the snowpack. Agriculture is a major user of water in California, with crops such as almonds, grapes, and lettuce requiring large quantities of water. Recreational uses include swimming, boating, and fishing.

StateNone
OperatorUSBR
Site IDRLF
Percent of normal-2%
Last updated2026-05-12
Records since2003
Storage trends

Daily levels at Relief

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

Track Relief 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 Relief

Where does the data for Relief 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 Relief.

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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