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:

Sep 27 2023 at 8:12 AM PDT

Next Issuance:

Sep 28 2023 at 9:00 AM PDT

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)

Today: Sunny. Highs around 81. Northwest winds up to 10 mph.

Tonight: Clear. Lows 52 to 58. Northwest winds around 10 mph with gusts to around 20 mph.

Thursday: Sunny. Highs around 83. Northwest winds 10 to 15 mph with gusts to around 25 mph.

Thursday Night: Clear. Lows 51 to 58. Northwest winds up to 10 mph with gusts to around 20 mph.

Friday: Mostly sunny. Highs around 78. Northwest winds up to 10 mph shifting to the south around 10 mph in the afternoon.

Friday Night: Partly cloudy with a slight chance of rain showers. Lows around 55.

Saturday: Partly cloudy with a slight chance of rain showers. Highs 67 to 73.

Saturday Night through Sunday Night: Mostly clear. Lows 50 to 56. Highs 67 to 76.

Monday and Monday Night: Mostly clear. Highs around 77. Lows 50 to 59.

Tuesday: Mostly sunny. Highs around 83.

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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Verification - Historical Graphical RVF
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