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)

Rest of Today: Mostly cloudy. Slight chance of showers early this afternoon. Slight chance of thunderstorms late this afternoon. Highs in the lower to mid 70s. Southwest winds 15 to 25 mph decreasing to 5 to 10 mph with gusts to around 35 mph early this afternoon, then increasing to west 15 to 20 mph with gusts to around 35 mph late this afternoon.

Tonight: Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 40s. West winds 10 to 20 mph decreasing to 5 to 10 mph after midnight, then shifting to the southwest well after midnight.

Friday: Mostly cloudy. A 20 percent chance of showers in the afternoon. Highs in the lower to mid 60s. South winds around 5 mph increasing to west 10 to 20 mph in the afternoon.

Friday Night: Mostly cloudy with a 40 percent chance of rain showers. Snow level 7000 feet after midnight. Lows in the lower to mid 40s. West winds 15 to 20 mph decreasing to 5 to 10 mph late in the evening and overnight.

Saturday: Rain likely in the morning, then rain likely and slight chance of thunderstorms in the afternoon. Snow level 7000 feet. Highs in the lower 50s to lower 60s. Breezy. Southwest winds 5 to 10 mph increasing to 20 to 25 mph in the afternoon. Chance of precipitation 70 percent.

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

Sunday: Mostly cloudy. Chance of rain and snow showers in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs in the mid 40s to lower 50s.

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

Memorial Day: Mostly cloudy in the morning then becoming partly cloudy. Highs in the lower to mid 50s.

Monday Night and Tuesday: Partly cloudy. Lows in the mid 30s to lower 40s. Highs in the mid 50s to mid 60s.

Tuesday Night and Wednesday: Mostly clear. Lows around 40. Highs in the mid 60s to mid 70s.

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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