CNRFC - Hydrology - Observed River/Reservoir Conditions

WILLIAMSON RIVER - CHILOQUIN (WMSO3)

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

Monitor Stage: 8.0 Feet

Flood Stage: 9.0 Feet

Plot Type:

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
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
2017	5,520	7.56	Mar 24, 2017
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

Official 7 Day National Weather Service Forecast (ORZ029)

Today: Mostly cloudy then becoming partly cloudy early this afternoon then becoming mostly cloudy. Chance of rain and snow showers early this morning, then chance of snow showers in the late morning and afternoon. Snow level 2800 feet. Highs in the mid 30s to mid 40s. West winds 10 to 20 mph. Chance of precipitation 40 percent.

Tonight: Partly cloudy. Lows 15 to 25. West winds 5 to 10 mph shifting to the east late in the evening and overnight.

Tuesday: Partly cloudy. Highs in the lower 40s to lower 50s. Northeast winds 15 to 20 mph.

Tuesday Night: Mostly cloudy. Lows in the lower to mid 20s. Northeast winds 10 to 15 mph shifting to the northwest 5 to 10 mph well after midnight.

Wednesday: Partly cloudy. Slight chance of snow in the morning, then slight chance of rain and snow in the afternoon. Snow level 3700 feet in the afternoon. Highs in the lower to mid 40s. Northwest winds 10 to 15 mph. Chance of precipitation 20 percent.

Wednesday Night: Mostly cloudy. Slight chance of rain and snow in the evening. Lows in the mid 20s to lower 30s.

Thursday: Mostly cloudy. Slight chance of snow in the morning, then slight chance of rain and snow in the afternoon. Highs in the lower to mid 40s.

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

Friday: Mostly cloudy. Chance of snow in the morning, then snow in the afternoon. Highs in the mid 30s to lower 40s.

Friday Night and Saturday: Mostly cloudy with a chance of snow. Lows 15 to 20. Highs in the mid 30s to lower 40s.

Saturday Night: Partly cloudy. Slight chance of snow in the evening. Lows 15 to 25.

Sunday: Mostly cloudy. Chance of snow in the afternoon. Highs in the mid 30s to lower 40s.

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.

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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