CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

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

Issuance Time:

Apr 23 2024 at 7:36 AM PDT

Next Issuance:

Apr 24 2024 at 9:00 AM PDT

Monitor Stage: 142.0 Feet

Flood Stage: 147.0 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	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)

Today: Partly cloudy in the morning then clearing. Highs 70 to 75. Southeast winds up to 10 mph.

Tonight: Mostly clear. Lows around 52. Southeast winds around 10 mph.

Thursday: Partly cloudy in the morning then becoming mostly cloudy. Highs 65 to 72. Southeast winds up to 15 mph.

Thursday Night: Mostly cloudy with a slight chance of rain showers. Lows around 52. South winds 10 to 15 mph.

Friday: Partly cloudy with a slight chance of rain showers in the morning, then mostly cloudy with a chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 67 to 72. Southeast winds up to 10 mph shifting to the east around 10 mph in the afternoon.

Friday Night: Mostly clear. Lows around 48.

Saturday: Mostly sunny. Highs 71 to 76.

Saturday Night: Mostly clear. Lows around 50.

Sunday through Tuesday: Clear. Highs 73 to 79. Lows around 50.

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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