National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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SHASTA RIVER - YREKA (YREC1)
Latitude: 41.82º NLongitude: 122.59º WElevation: 2000 Feet
Location: Siskiyou County in CaliforniaBulletin Group: North CoastRiver Group: Klamath
Issuance Time: May 10 2025 at 7:55 AM PDTNext Issuance: May 11 2025 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.
Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View US Geological Survey (USGS) Data for this station location.

Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ081)
rest of Today: Sunny. Highs in the lower 70s to lower 80s. West winds 5 to 10 mph.

Tonight: Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower to mid 40s. Northwest winds 10 to 15 mph decreasing to 5 to 10 mph after midnight.

Sunday: Partly cloudy. Highs in the mid 50s to mid 60s. West winds around 5 mph shifting to the southwest early in the afternoon, then increasing to around 15 mph late in the afternoon.

Sunday Night: Mostly cloudy. Chance of rain in the evening, then rain and snow likely after midnight. Snow level 5500 feet lowering to 5000 feet after midnight. Lows around 40. Southwest winds 10 to 15 mph. Chance of precipitation 60 percent.

Monday: Rain and snow likely in the morning, then rain showers and slight chance of thunderstorms in the afternoon. Snow level 4500 feet rising to 5000 feet in the afternoon. Highs in the mid 40s to mid 50s. Southwest winds 5 to 10 mph. Chance of precipitation 80 percent.

Monday Night: Mostly cloudy. Chance of rain in the evening. Lows around 40.

Tuesday: Mostly cloudy in the morning then becoming partly cloudy. Highs in the mid 50s to lower 60s.

Tuesday Night and Wednesday: Partly cloudy. Lows around 40. Highs in the mid 50s to mid 60s.

Wednesday Night: Mostly clear. Lows in the mid 30s to lower 40s.

Thursday through Friday: Partly cloudy. Highs in the mid 60s to mid 70s. Lows in the mid 30s to mid 40s.
Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS Medford Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.