National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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WILLIAMSON RIVER - CHILOQUIN (WMSO3)
Latitude: 42.57º NLongitude: 121.88º WElevation: 4149 Feet
Location: Klamath County in OregonRiver Group: North Coast
Monitor Stage: 8.0 FeetFlood Stage: 9.0 Feet

Observed Data Credit
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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
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (ORZ029)
Today: Sunny. Highs in the mid 60s to lower 70s. South winds around 5 mph shifting to the southwest 10 to 15 mph this afternoon.

Tonight: Mostly clear. Lows in the lower to mid 30s. West winds 10 to 15 mph shifting to the northwest around 5 mph after midnight.

Sunday: Partly cloudy. Highs in the lower to mid 60s. Northwest winds around 5 mph.

Sunday Night: Partly cloudy. Lows in the lower to mid 30s. Northwest winds 5 to 10 mph.

Monday: Sunny in the morning then becoming partly cloudy. Highs in the mid 60s to lower 70s. Northeast winds around 5 mph shifting to the east in the afternoon.

Monday Night: Partly cloudy. Lows in the lower to mid 40s.

Tuesday: Partly cloudy. Slight chance of thunderstorms in the afternoon. Highs in the mid 60s to lower 70s.

Tuesday Night and Wednesday: Partly cloudy with a slight chance of rain and thunderstorms. Lows in the mid 30s to lower 40s. Highs in the lower 60s to lower 70s.

Wednesday Night: Partly cloudy. Lows in the mid 30s.

Thursday: Partly cloudy with a slight chance of rain and snow in the morning, then mostly cloudy with a chance of rain in the afternoon. Highs in the lower to mid 50s.

Thursday Night and Friday: Mostly cloudy with a chance of rain and snow. Lows in the mid 30s to lower 40s. Highs in the lower to mid 50s.
Impacts - E19 Information
8.0 FeetWater 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 FeetWater exceeds the channel of the river and begins to impact structures along the river and in low-lying areas near the river.
10.0 FeetWidespread 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.