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
Issuance Time: May 18 2021 at 8:08 AM PDTNext Issuance: May 19 2021 at 9:00 AM PDT
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.

Verification - Historical Graphical RVF
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Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
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
2016
2,740
5.85
Mar 18, 2016
 Historical High Stage/Flow Events (Period of Record - April 1917 to Present)
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: Partly cloudy early this morning then clearing. Highs in the lower to mid 60s. Northwest winds 10 to 15 mph.

Tonight: Partly cloudy. Lows in the lower to mid 30s. Northwest winds 10 to 15 mph decreasing to around 5 mph after midnight.

Wednesday: Partly cloudy. Slight chance of rain and snow showers in the afternoon. Highs in the lower to mid 50s. Northwest winds 10 to 15 mph.

Wednesday Night: Mostly cloudy. Chance of rain and snow showers in the evening, then chance of snow showers after midnight. Snow level 4300 feet in the evening. Lows in the mid 20s to mid 30s. Northwest winds 15 to 20 mph decreasing to 5 to 10 mph after midnight. Chance of precipitation 30 percent.

Thursday: Partly cloudy. Slight chance of snow showers in the morning, then slight chance of rain and snow showers in the afternoon. Snow level 3500 feet in the afternoon. Highs in the mid 40s to lower 50s. Northwest winds 10 to 15 mph. Chance of precipitation 20 percent.

Thursday Night: Partly cloudy. Slight chance of snow showers in the evening. Lows in the lower to mid 30s.

Friday: Partly cloudy. Slight chance of rain showers in the afternoon. Highs in the lower to mid 50s.

Friday Night: Partly cloudy. Slight chance of rain showers in the evening. Lows in the lower 30s to lower 40s.

Saturday: Partly cloudy with a slight chance of rain showers. Highs in the mid 50s to lower 60s.

Saturday Night: Mostly cloudy with a slight chance of rain showers in the evening, then partly cloudy after midnight. Lows in the mid 30s to lower 40s.

Sunday: Partly cloudy. Highs in the lower to mid 60s.

Sunday Night and Monday: Mostly clear. Lows in the mid 30s to lower 40s. Highs in the mid 60s to mid 70s.
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.