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
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
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (ORZ029)
Rest of Today: Mostly cloudy with a 30 percent chance of rain and snow. Snow level 4900 feet. Highs in the lower to mid 40s. South winds 10 to 20 mph. Gusts up to 35 mph this afternoon.

Tonight: Cloudy with rain and snow showers. Snow level 4600 feet lowering to 3900 feet after midnight. Snow accumulation of 2 to 3 inches. Lows in the mid 20s to lower 30s. South winds 10 to 20 mph with gusts to around 35 mph. Chance of precipitation 90 percent.

Sunday: Mostly cloudy with a 30 percent chance of snow showers. Highs in the mid 30s to lower 40s. Southwest winds 10 to 20 mph.

Sunday Night: Mostly cloudy. A 10 percent chance of snow showers in the evening. Lows in the lower to mid 20s. West winds 10 to 20 mph decreasing to 5 to 10 mph well after midnight.

Monday: Partly cloudy. Highs in the lower to mid 40s. West winds 5 to 10 mph.

Monday Night and Tuesday: Mostly cloudy. Lows in the lower to mid 20s. Highs in the lower to mid 40s.

Tuesday Night: Partly cloudy with a slight chance of rain and snow showers. Lows in the lower to mid 20s.

Wednesday: Mostly cloudy in the morning then becoming partly cloudy. Chance of snow showers. Highs in the lower to mid 40s.

Wednesday Night: Mostly clear. Lows 15 to 20.

Thursday and Thursday Night: Partly cloudy. Highs in the mid 40s. Lows 15 to 25.

Friday: Mostly cloudy in the morning then becoming partly cloudy. Highs in the mid 40s to lower 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.