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:

Jan 18 2025 at 7:27 AM PST

Next Issuance:

Jan 19 2025 at 9:00 AM PST

Action/Monitor: 142.0 Feet

Minor Flood: 147.0 Feet

Moderate Flood: 149.2 Feet

Major Flood: 150.2 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 California Department of Water Resources Data for this station location.

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2023	105,300	146.79	Mar 15, 2023
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
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

Flood Impacts
147.2 Feet	Overflow begins on the east bank of the river, from near Wilson Landing Road to Highway 32.
146.8 Feet	Water at top of Irvine Finch boat ramp.
145.1 Feet	Water inundates Phase 2A restoration area north of Hwy 32 bridge inside of levee; touches toe of levee.
144.0 Feet	County Road 23 in Glenn County closes east of RD 2140 levee as a result of water on roadway.
137.7 Feet	West Sacramento Avenue and River Road north of Big Chico Creek flood 1.5 hours after the Hamilton City gage reaches 137.7-138.0 feet.

Official 7 Day National Weather Service Forecast (CAZ016)

Today: Areas of frost and patchy dense fog in the morning. Sunny. Highs around 57. Light winds.

Tonight: Clear. Lows 36 to 42. North winds up to 10 mph. Gusts up to 20 mph after midnight.

Martin Luther King Jr Day: Sunny. Highs around 59. North winds 10 to 20 mph with gusts to around 30 mph.

Monday Night: Clear. Lows 31 to 38. North winds 10 to 15 mph with gusts to around 25 mph.

Tuesday: Mostly sunny. Highs around 57. Light winds.

Tuesday Night: Clear. Lows 32 to 40.

Wednesday: Sunny. Areas of frost. Highs 59 to 67.

Wednesday Night and Thursday: Clear. Lows 35 to 43. Highs around 63.

Thursday Night through Friday Night: Mostly clear. Lows 35 to 43. Highs around 61.

Saturday: Partly cloudy with a slight chance of rain showers. Highs around 57.

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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