CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

FEATHER RIVER - GRIDLEY (GRIC1)

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

Issuance Time:

Apr 25 2024 at 8:18 AM PDT

Next Issuance:

Apr 26 2024 at 9:00 AM PDT

Monitor Stage: 94.0 Feet

Flood Stage: 103.0 Feet

Danger Stage: 104.0 Feet

Plot Type:

Please Note: 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.

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
2022*	6,200	75.47	Mar 9, 2022
2021*	3,310	73.81	Jul 2, 2021
2020*	9,540	76.16	Oct 2, 2019
2019*	24,900	82.90	Apr 7, 2019
2018*	14,200	79.49	Apr 7, 2018
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

Impacts - E19 Information
95.3 Feet	Overflow of the east bank begins east of Gridley. This water flows into orchards.
97.5 Feet	General overflow of the east bank south of the gage to near Highway 70 occurs. This floods extensive areas of farm land.
99.3 Feet	Water flows over Highway 70 south of East Gridley Road.
101.6 Feet	East bank overflows from Hamilton Bend to Four Corners and to near Highway 40.
106.5 Feet	Stages above 106.5 feet result in flooding outside the levees. Top of levee.

Official 7 Day National Weather Service Forecast (CAZ016)

Today: Mostly cloudy. A chance of rain showers early in the morning. A slight chance of rain showers late in the morning. A slight chance of thunderstorms in the late morning and afternoon. A chance of rain showers in the afternoon. Highs 67 to 72. Southeast winds up to 10 mph shifting to the northwest in the afternoon.

Tonight: Mostly clear. Lows around 48. Northwest winds 10 to 15 mph.

Saturday: Mostly sunny. Highs 71 to 76. Northwest winds around 10 mph with gusts to around 20 mph.

Saturday Night: Mostly clear. Lows around 50. North winds up to 10 mph.

Sunday: Sunny. Highs 74 to 79. Northwest winds up to 10 mph.

Sunday Night: Clear. Lows around 50.

Monday: Sunny. Highs 74 to 79.

Monday Night through Wednesday Night: Clear. Lows around 52. Highs 74 to 84.

Thursday: Mostly sunny. Highs 74 to 79.

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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Verification - Historical Graphical RVF
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