CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

SHASTA RIVER - YREKA (YREC1)

Latitude: 41.82º N	Longitude: 122.59º W	Elevation: 2000 Feet
Location: Siskiyou County in California		Bulletin Group: North Coast		River Group: Klamath

Issuance Time:

Dec 27 2025 at 9:16 AM PST

Next Issuance:

Dec 28 2025 at 9:00 AM PST

Action/Monitor: N/A

Minor Flood: N/A

Moderate Flood: N/A

Major Flood: N/A

Plot Type:

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
	Raw streamflow data is provided by the US Geological Survey (USGS). View US Geological Survey (USGS) Data for this station location.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ081)

Tonight: Mostly clear then becoming mostly cloudy in the late evening and early morning then becoming partly cloudy. Patchy fog through the night. Widespread freezing fog well after midnight. Lows in the lower to mid 20s. North winds around 5 mph.

Sunday: Sunny. Widespread freezing fog in the morning. Highs in the lower to mid 40s. Northeast winds around 5 mph.

Sunday Night: Mostly clear in the evening then becoming partly cloudy. Lows in the mid 20s to lower 30s. East winds around 5 mph.

Monday: Sunny. Highs in the mid 40s. East winds around 5 mph.

Monday Night: Mostly clear. Lows in the mid 20s to lower 30s. East winds around 5 mph.

Tuesday and Tuesday Night: Mostly clear. Highs in the mid 40s to lower 50s. Lows in the mid 20s to mid 30s.

Wednesday: Sunny in the morning then becoming partly cloudy. Highs in the mid 40s to lower 50s.

Wednesday Night: Mostly cloudy. Slight chance of rain after midnight. Lows in the lower to mid 30s.

New Years Day: Mostly cloudy with a chance of rain. Highs in the mid 40s to lower 50s.

Thursday Night and Friday: Mostly cloudy with a chance of rain and snow. Lows in the lower to mid 30s. Highs in the lower 40s to lower 50s.

Friday Night and Saturday: Mostly cloudy with a chance of rain and snow. Lows around 30. Highs in the lower 40s to lower 50s.

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.

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Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.