CNRFC - Hydrology - River Guidance - Graphical RVF

FEATHER RIVER - GRIDLEY (GRIC1)

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

Issuance Time:

Mar 20 2023 at 2:42 PM PDT

Next Issuance:

Mar 21 2023 at 9:00 AM PDT

Monitor Stage: 94.0 Feet

Flood Stage: 103.0 Feet

Danger Stage: 104.0 Feet

Plot Type:

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
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
2017*	129,000	96.37	Feb 14, 2017
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: Partly cloudy until early morning, then mostly cloudy with a chance of rain showers late in the night. Lows around 43. Southeast winds around 10 mph shifting to the northeast up to 10 mph after midnight. Gusts up to 20 mph.

Tuesday: A chance of rain showers in the morning, then rain showers in the afternoon. Highs 49 to 57. Northeast winds 10 to 15 mph shifting to the southeast in the afternoon. Gusts up to 25 mph.

Tuesday Night: Mostly cloudy. Rain showers likely in the evening, then a chance of rain showers after midnight. Lows around 44. East winds 10 to 20 mph. Gusts up to 30 mph in the evening.

Wednesday: Mostly cloudy with a chance of rain showers. Highs around 57. East winds up to 10 mph shifting to the south around 10 mph in the afternoon.

Wednesday Night: Mostly cloudy. A slight chance of rain showers in the evening. Lows 41 to 47. Southeast winds up to 10 mph.

Thursday: Mostly cloudy with a slight chance of rain showers. Highs 57 to 62.

Thursday Night: Partly cloudy with a slight chance of rain showers. Lows 36 to 42.

Friday: Partly cloudy. Highs around 58.

Friday Night and Saturday: Mostly clear. Lows around 36. Highs around 58.

Saturday Night: Mostly clear. Areas of frost. Lows around 34.

Sunday: Partly cloudy with a slight chance of rain showers. Areas of frost. Highs 54 to 59.

Sunday Night and Monday: Mostly cloudy with a chance of rain showers. Lows around 41. Highs 50 to 59.

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.

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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