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:

May 29 2020 at 7:59 AM PDT

Next Issuance:

May 30 2020 at 9:00 AM PDT

Monitor Stage: 93.5 Feet

Flood Stage: 102.0 Feet

Danger Stage: 103.0 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
2019*	24,900	82.90	Apr 7, 2019
2018*	14,200	79.49	Apr 7, 2018
2017*	129,000	96.37	Feb 14, 2017
2016*	10,912	78.37	Jun 29, 2016
2015*	4,052	75.37	May 15, 2015
Historical High Stage/Flow Events (Period of Record - Mar 1929 to Present)
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 -1.6 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: Mostly cloudy. Rain showers likely and a slight chance of thunderstorms after midnight. Breezy. Lows 60 to 66. Southeast winds 15 to 25 mph with gusts to around 35 mph.

Saturday: Rain showers and a slight chance of thunderstorms. Breezy, cooler. Highs 68 to 74. Southeast winds 15 to 25 mph with gusts to around 35 mph.

Saturday Night: Partly cloudy. A slight chance of rain showers in the evening. Lows around 56. Southeast winds 10 to 15 mph. Gusts up to 30 mph in the evening.

Sunday: Partly cloudy. Highs around 80. Northwest winds around 10 mph.

Sunday Night: Mostly cloudy. Lows around 62. Southeast winds up to 10 mph.

Monday: Mostly cloudy with a slight chance of rain showers. Highs around 82.

Monday Night: Partly cloudy. Lows around 62.

Tuesday through Thursday Night: Mostly clear. Highs 90 to 95. Lows around 63.

Friday: Partly cloudy. Highs 81 to 86.

Impacts - E19 Information
94.4 Feet	Overflow of the east bank begins east of Gridley. This water flows into orchards.
96.6 Feet	General overflow of the east bank south of the gage to near Highway 70 occurs. This floods extensive areas of farm land.
98.4 Feet	Water flows over Highway 70 south of East Gridley Road.
100.7 Feet	East bank overflows from Hamilton Bend to Four Corners and to near Highway 40.
105.6 Feet	Stages above 105.6 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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