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		River Group: Upper Sacramento

Monitor Stage: 142.0 Feet

Flood Stage: 147.0 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
2020	28,100	134.20	Jan 27, 2020
2019	117,800	147.87	Feb 27, 2019
2018	61,600	140.70	Apr 8, 2018
2017	131,100	149.33	Feb 19, 2017
2016	77,947	142.43	Jan 18, 2016
2015	124,356	148.32	Dec 12, 2014
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

Official 7 Day National Weather Service Forecast (CAZ016)

Today: Sunny. Highs 89 to 94. Northwest winds up to 15 mph.

Tonight: Clear. Lows 56 to 62. Northwest winds around 10 mph with gusts to around 20 mph.

Wednesday: Mostly sunny. Highs 92 to 97. Northwest winds 10 to 20 mph with gusts to around 30 mph.

Wednesday Night: Mostly clear. Lows around 63. Northwest winds 10 to 20 mph with gusts to around 30 mph.

Thursday: Mostly sunny. Breezy. Highs 84 to 90. Northwest winds 10 to 15 mph increasing to 15 to 25 mph in the afternoon.

Thursday Night: Mostly clear. Breezy. Lows around 59.

Friday: Mostly sunny. Breezy. Highs 84 to 90.

Friday Night and Saturday: Clear. Lows 57 to 63. Highs 85 to 95.

Saturday Night and Sunday: Mostly clear. Lows 58 to 64. Highs 90 to 98.

Sunday Night and Monday: Mostly clear. Lows 63 to 69. Highs 93 to 100.

Impacts - E19 Information
137.7 Feet	West Sacramento Avenue and River Road north of Big Chico Creek flood 1.5 hours after the Hamilton City gage reaches 138.5 and 138.8 feet.
147.2 Feet	Overflow begins on the east bank of the river, from near Wilson Landing Road to Highway 32.

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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