CNRFC - Hydrology - Observed River/Reservoir Conditions

SACRAMENTO RIVER - HAMILTON CITY (HAMC1)

Latitude: 39.75º N	Longitude: 122.00º W	Elevation: 125 Feet
Location: Glenn County in California		Bulletin Group: Upper Sacramento		River Group: Upper Sacramento

Monitor Stage: 142.0 Feet

Flood Stage: 147.0 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
2022	47,500	137.98	Oct 25, 2021
2021	13,300	130.71	Jan 29, 2021
2020	28,100	134.20	Jan 27, 2020
2019	117,800	147.87	Feb 27, 2019
2018	61,600	140.70	Apr 8, 2018
Historical High Stage/Flow Events (Period of Record - January 1927 to Present) - Ranked by Flow
1986	160,900	150.53	Feb 18, 1986
1970	160,700	150.80	Jan 24, 1970
1983	159,600	150.77	Mar 1, 1983
1997	155,300	150.92	Jan 2, 1997
1995	--	150.65	Jan 10, 1995
* Datum changed from USED to NAVD88 on 10/01/2019. The difference is -0.8 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
137.7 Feet	West Sacramento Avenue and River Road north of Big Chico Creek flood on the east side of the river 1.5 hours after the Hamilton City gage reaches 138.5 and 138.8 feet.
144.0 Feet	County Road 23 in Glenn County closes east of RD 2140 levee.
145.1 Feet	Water inundates Phase 2A restoration area north of Hwy 32 bridge inside of levee; touches toe of levee.
146.8 Feet	Water at top of Irvine Finch boat ramp.
147.2 Feet	Overflow begins on the east bank of the river, from near Wilson Landing Road to Highway 32.

Official 7 Day National Weather Service Forecast (CAZ016)

Tonight: Mostly cloudy with a slight chance of showers and thunderstorms early in the evening, then mostly cloudy with a slight chance of rain showers late in the evening. Partly cloudy after midnight. Lows around 60. East winds 10 to 15 mph with gusts to around 25 mph.

Tuesday: Partly cloudy in the morning then clearing. Not as warm. Highs 78 to 84. Southeast winds 10 to 15 mph with gusts to around 25 mph.

Tuesday Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows around 58. Southeast winds 10 to 15 mph.

Wednesday: Mostly cloudy in the morning then clearing. Highs 79 to 84. Southeast winds around 10 mph.

Wednesday Night: Partly cloudy. Lows around 59. South winds 10 to 15 mph.

Thursday: Partly cloudy. Highs 81 to 86.

Thursday Night: Mostly cloudy. Lows around 59.

Friday: Mostly sunny. Highs 80 to 85.

Friday Night: Mostly cloudy. Lows around 58.

Saturday: Mostly cloudy with a slight chance of rain showers. Highs around 81.

Saturday Night: Partly cloudy with a slight chance of rain showers. Lows around 59.

Sunday and Sunday Night: Mostly cloudy with a slight chance of rain showers. Highs around 79. Lows around 60.

Monday: Partly cloudy with a slight chance of rain showers. Highs around 80.

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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