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.
Note: Water Year 2025 is currently showing peak daily mean values. These will be updated to instantaneous peaks in the coming months.
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
Most Recent 5 Years
2025*
93,000
115.00
Feb 06, 2025
2024*
89,400
114.37
Feb 20, 2024
2023*
94,000
115.09
Mar 16, 2023
2022*
44,100
106.44
Oct 25, 2021
2021*
12,700
98.94
Jan 29, 2021
Historical High Stage/Flow Events (Completion of Shasta Dam (1943) to Present) - Ranked by Stage
1958*
--
120.10**
Feb 25, 1958
1970*
--
119.79
Jan 24, 1970
1965*
--
119.00
Dec 23, 1964
1997*
215,000
118.66
Jan 02, 1997
1974*
212,400
118.40
Jan 16, 1974
1986*
195,000
118.30
Feb 19, 1986
* Discharge affected by regulation or diversion
** Datum changed from USED to NAVD88 on 10/01/2019. The difference is -0.2 ft and must be applied to all data before date to convert to NAVD88
Design overflow level for M&T, 3Bs and Goose Lake flood control facilities to divert flood flows into Butte Basin. M&T overflows close River Road from Ord Ferry Road to Chico Road. Ord Ferry Road is already closed.
112.0 Feet
At 112 to 113 feet, water inundates portions of Ord Ferry Road (County Road 32) in Glenn County from CA-45 east to the county line at the Sacramento River.
110.3 Feet
Head cuts in 3Bs silt weir start overflow into Butte Basin, flooding dips on Ord Ferry Road west of River Road in Butte County. Persistent flows at or above this level increase flooding in Butte Basin. Ord Ferry Road and additional roads in Glenn and Colusa counties are closed due to flooding.
Official 7 Day National Weather Service Forecast (CAZ016)
Tonight: Rain showers and a slight chance of thunderstorms in the evening, then a chance of rain after midnight. Breezy. Some thunderstorms may produce heavy rainfall in the evening. Lows 43 to 49. South winds 10 to 25 mph with gusts to around 40 mph.
Friday: A chance of rain in the morning, then rain in the afternoon. Breezy. Highs around 50. Southeast winds 10 to 25 mph with gusts to around 40 mph.
Friday Night: Mostly cloudy. Rain likely in the evening, then a chance of rain after midnight. Lows 39 to 46. Southeast winds 10 to 15 mph. Gusts up to 30 mph decreasing to 20 mph after midnight.
Saturday: Mostly cloudy with a slight chance of rain in the morning, then partly cloudy in the afternoon. Highs around 48. North winds up to 10 mph.
Saturday Night: Mostly clear. Lows 34 to 40. North winds around 10 mph with gusts to around 20 mph.
Sunday: Partly cloudy. Highs around 48.
Sunday Night: Partly cloudy. Lows around 36.
Monday through Tuesday: Partly cloudy. Highs 47 to 54. Lows around 36.
Tuesday Night through Wednesday Night: Mostly clear. Lows around 38. Highs 48 to 54.
New Years Day: Mostly cloudy with a slight chance of rain. Highs around 48.
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 Sacramento 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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