CNRFC - Hydrology - River Guidance - Graphical RVF

WILLIAMSON RIVER - CHILOQUIN (WMSO3)

Latitude: 42.57º N	Longitude: 121.88º W	Elevation: 4149 Feet
Location: Klamath County in Oregon		River Group: North Coast

Issuance Time:

Mar 22 2023 at 2:24 PM PDT

Next Issuance:

Mar 23 2023 at 9:00 AM PDT

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)

Tonight: Mostly cloudy. Rain showers, snow showers likely and slight chance of thunderstorms early this evening, then chance of rain late this evening. Chance of snow late this evening and overnight. Snow level 4500 feet this evening. Snow accumulation of 1 to 2 inches. Lows in the mid 20s to lower 30s. West winds 5 to 10 mph. Chance of precipitation 60 percent.

Thursday: Mostly cloudy. Chance of snow in the morning, then rain and snow in the afternoon. Snow level 3100 feet in the afternoon. Snow accumulation of 1 to 2 inches. Highs in the lower to mid 40s. Breezy. Southwest winds 10 to 15 mph increasing to 20 to 25 mph late in the afternoon. Chance of precipitation 80 percent.

Thursday Night: Mostly cloudy with a 50 percent chance of snow showers. Lows in the lower to mid 20s. Breezy. West winds 15 to 25 mph with gusts to around 40 mph.

Friday: Mostly cloudy with a 50 percent chance of snow showers. Highs in the lower to mid 30s. Breezy. West winds 15 to 25 mph. Gusts up to 40 mph.

Friday Night: Mostly cloudy with a 40 percent chance of snow showers. Lows 15 to 20. Breezy. West winds 15 to 25 mph decreasing to 10 to 15 mph well after midnight.

Saturday: Mostly cloudy. Chance of snow showers in the morning, then snow showers in the afternoon. Highs in the lower to mid 30s.

Saturday Night: Mostly cloudy with a slight chance of snow showers in the evening, then partly cloudy after midnight. Lows 15 to 20.

Sunday and Sunday Night: Mostly cloudy with a chance of snow showers. Highs in the mid 30s to lower 40s. Lows 15 to 25.

Monday: Mostly cloudy. Chance of snow in the morning, then snow likely in the afternoon. Highs in the mid 30s to lower 40s.

Monday Night: Mostly cloudy with a chance of snow. Lows in the lower 20s to lower 30s.

Tuesday: Mostly cloudy. Chance of snow in the morning, then snow likely in the afternoon. Highs around 40.

Tuesday Night: Mostly cloudy. Chance of snow in the evening, then slight chance of snow showers after midnight. Lows in the lower to mid 20s.

Wednesday: Mostly cloudy with a chance of snow showers. Highs in the lower to mid 40s.

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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