CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

WILLIAMSON RIVER - CHILOQUIN (WMSO3)

Latitude: 42.57º N	Longitude: 121.88º W	Elevation: 4149 Feet
Location: Klamath County in Oregon		Bulletin Group: North Coast		River Group: Klamath

Issuance Time:

Dec 05 2023 at 1:35 PM PST

Next Issuance:

Dec 06 2023 at 9:00 AM PST

Monitor Stage: 8.0 Feet

Flood Stage: 9.0 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 US Geological Survey (USGS). View USGS Data for this station location.

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2022	1,040	4.16	Jan 9, 2022
2021	670	3.68	Apr 28, 2021
2020	1,120	4.26	Jan 29, 2020
2019	4,000	6.57	Apr 14, 2019
2018	1,650	4.81	Mar 26, 2018
Historical High Stage/Flow Events (Period of Record - April 1917 to Present) - Ranked by Flow
1997	17,100	10.27	Jan 5, 1997
1964	16,100	10.56	Feb 26, 1964
1982	10,200	8.45	Feb 24, 1982
1970	8,010	7.53	Feb 27, 1970
1943	7,660	7.29	Apr 1, 1943

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Impacts - E19 Information
8.0 Feet	Water is nearing many structures along and near the river. Water is close to structures at the Water Wheel Campground near US Highway 97.
9.0 Feet	Water exceeds the channel of the river and begins to impact structures along the river and in low-lying areas near the river.
10.0 Feet	Widespread flooding is occurring along the Williamson River from the US Highway 97 bridge downstream to Upper Klamath Lake. Widespread farm land is flooded and numerous structures as well.

Official 7 Day National Weather Service Forecast (ORZ029)

Tonight: Mostly cloudy. Lows in the mid 30s to lower 40s. Southeast winds 10 to 15 mph.

Wednesday: Slight chance of rain in the morning, then rain and snow in the afternoon. Snow level 5000 feet in the afternoon. Little or no snow accumulation. Highs in the lower 40s to lower 50s. Breezy. South winds 15 to 25 mph with gusts to around 40 mph shifting to the southwest with gusts to around 40 mph late in the afternoon. Chance of precipitation near 100 percent.

Wednesday Night: Rain and snow in the evening, then snow likely after midnight. Snow level 4300 feet in the evening. Snow accumulation up to 1 inch. Lows in the mid 20s to lower 30s. Southwest winds 10 to 20 mph with gusts to around 35 mph. Chance of precipitation near 100 percent.

Thursday: Snow. Highs in the mid 30s to lower 40s. Breezy. Southwest winds 15 to 25 mph. Chance of snow near 100 percent.

Thursday Night: Mostly cloudy. Snow likely in the evening, then chance of snow after midnight. Lows in the lower to mid 20s. West winds 10 to 20 mph decreasing to 5 to 10 mph after midnight. Chance of snow 60 percent.

Friday and Friday Night: Mostly cloudy with a chance of snow. Highs in the lower to mid 30s. Lows in the lower to mid 20s.

Saturday: Cloudy. Snow likely in the morning, then rain and snow in the afternoon. Highs in the mid 30s to lower 40s.

Saturday Night: Mostly cloudy. Rain and snow in the evening, then chance of rain and snow after midnight. Lows in the mid 20s to lower 30s.

Sunday: Mostly cloudy with a chance of rain and snow. Highs around 40.

Sunday Night: Partly cloudy in the evening then becoming mostly cloudy. Slight chance of rain and snow. Lows in the lower to mid 20s.

Monday: Mostly cloudy in the morning then becoming partly cloudy. Slight chance of rain and snow. Highs in the mid 30s to lower 40s.

Monday Night and Tuesday: Partly cloudy with a slight chance of rain and snow. Lows 15 to 20. Highs in the mid 30s to lower 40s.

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 Medford 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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