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 OregonBulletin Group: North CoastRiver Group: Klamath
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
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.
Official 7 Day National Weather Service Forecast   (ORZ029)
Today: Mostly cloudy then becoming partly cloudy early this afternoon then becoming mostly cloudy. Rain and snow early this morning, then chance of snow in the late morning and afternoon. Snow level 2300 feet this morning. Snow accumulation of 2 to 3 inches. Highs in the mid 30s to lower 40s. Windy. West winds 20 to 30 mph. Chance of precipitation 90 percent.

Tonight: Mostly cloudy with a 10 percent chance of snow in the evening, then partly cloudy after midnight. Lows in the lower to mid 20s. Breezy. West winds 15 to 25 mph decreasing to 10 to 15 mph after midnight.

Tuesday: Mostly cloudy. Highs in the mid 30s to lower 40s. West winds 5 to 10 mph.

Tuesday Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of snow after midnight. Lows in the mid 20s to lower 30s. Southwest winds 5 to 10 mph shifting to the south after midnight.

Wednesday: Mostly cloudy with a 30 percent chance of rain and snow. Snow level 3600 feet rising to 5500 feet in the afternoon. Highs in the lower 40s to lower 50s. South winds 5 to 10 mph shifting to the southwest 10 to 20 mph in the afternoon.

Wednesday Night: Mostly cloudy. Chance of rain and snow in the evening, then rain and snow after midnight. Windy. Lows in the lower to mid 30s.

Thursday: Rain and snow. Windy. Highs in the mid 30s to mid 40s.

Thursday Night: Snow, breezy. Lows in the mid 20s.

Friday: Snow, breezy. Highs in the lower to mid 30s.

Friday Night: Snow in the evening, then chance of snow after midnight. Colder. Lows 15 to 20.

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

Sunday: Mostly cloudy with a chance of snow. Highs in the lower to mid 30s.
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.