CNRFC - Hydrology - Observed River/Reservoir Conditions

FEATHER RIVER - GRIDLEY (GRIC1)

Latitude: 39.37º N	Longitude: 121.65º W	Elevation: 92 Feet
Location: Butte County in California		River Group: Lower Sacramento

Monitor Stage: 94.0 Feet

Flood Stage: 103.0 Feet

Danger Stage: 104.0 Feet

Observed Data Credit
	Raw streamflow data is provided by the California Department of Water Resources. View CA DWR Data for this station location.

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2024*	14,300	78.80	Feb 29, 2024
2023*	38,900	85.49	Mar 20, 2023
2022*	6,200	75.47	Mar 9, 2022
2021*	3,310	73.81	Jul 2, 2021
2020*	9,540	76.16	Oct 2, 2019
Historical High Stage/Flow Events (Period of Record - Mar 1929 to Present) - Ranked by Flow
1956	--	102.25**	Dec 23, 1955
1986*	--	100.06	Feb 19, 1986
1997*	--	98.83	Jan 2, 1997
2017*	129,000	96.37	Feb 14, 2017
1995*	89,434	94.66	Mar 12, 1995
2006*	76,964	91.97	Jan 3, 2006
* Discharge affected by regulation or diversion
** Peak stage before regulation by Oroville Dam began in 1967 (also old datum)
*** Datum difference is -2.9 ft and must be applied to data to convert from NGVD29 to NAVD88
**** Datum changed from USED to NAVD88 on 10/01/2019. The difference is -0.7 ft and must be applied to all data before date to convert to NAVD88

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ016)

Tonight: Clear. Lows 56 to 62. Southeast winds up to 10 mph with gusts to around 20 mph.

Wednesday: Sunny. Highs around 92. Light winds.

Wednesday Night: Clear. Lows 62 to 70. Light winds.

Thursday: Sunny. Highs around 101. Northwest winds up to 10 mph.

Thursday Night: Clear. Lows 65 to 73. Southwest winds up to 10 mph shifting to the east after midnight.

Friday: Sunny. Highs around 101.

Friday Night: Clear. Lows 64 to 72.

Saturday through Tuesday: Clear. Highs around 99. Lows 62 to 72.

Flood Impacts
106.5 Feet	Stages above 106.5 feet result in flooding outside the levees. Top of levee.
101.6 Feet	East bank overflows from Hamilton Bend to Four Corners and to near Hwy 40.
99.3 Feet	Water flows over Hwy 70 south of east Gridley Road.
97.5 Feet	General overflow of the east bank south of the gage to near Hwy 70 occurs. This floods extensive areas of farm land.
95.3 Feet	Overflow of the east bank begins east of Gridley. This water flows into orchards.

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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