CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

WILLIAMSON RIVER - CHILOQUIN (WMSO3)

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

Issuance Time:

May 05 2024 at 8:40 AM PDT

Next Issuance:

May 06 2024 at 9:00 AM PDT

Monitor Stage: 8.0 Feet

Flood Stage: 9.0 Feet

Plot Type:

Please Note: Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

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
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
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

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.

Official 7 Day National Weather Service Forecast (ORZ029)

Today: Mostly cloudy. Chance of snow showers this morning, then chance of rain and snow showers this afternoon. Snow level 3700 feet this afternoon. Highs in the lower to mid 40s. West winds 10 to 20 mph with gusts to around 35 mph. Chance of precipitation 30 percent.

Tonight: Mostly cloudy. A 10 percent chance of snow showers in the evening. Lows in the mid 20s to lower 30s. West winds 10 to 20 mph shifting to the southwest 5 to 10 mph after midnight.

Monday: Mostly cloudy. Slight chance of rain and snow showers in the morning, then rain showers, snow showers likely and slight chance of thunderstorms in the afternoon. Snow level 5000 feet in the afternoon. Little or no snow accumulation. Highs in the mid 40s to lower 50s. Southwest winds 10 to 15 mph with gusts to around 30 mph shifting to the west 15 to 20 mph with gusts to around 35 mph late in the afternoon. Chance of precipitation 70 percent.

Monday Night: Mostly cloudy with a 40 percent chance of rain and snow showers in the evening, then partly cloudy after midnight. Snow level 4100 feet in the evening. Lows in the mid 20s to lower 30s. West winds 10 to 20 mph with gusts to around 40 mph decreasing to 5 to 10 mph after midnight.

Tuesday: Mostly cloudy in the morning then becoming partly cloudy. Highs in the mid 40s to lower 50s. West winds 5 to 10 mph shifting to the northwest around 15 mph in the afternoon.

Tuesday Night: Mostly clear. Widespread frost after midnight. Lows in the mid 20s.

Wednesday through Thursday: Clear. Widespread frost in the morning. Widespread frost. Highs in the mid 50s to mid 60s. Lows in the mid 20s to mid 30s.

Thursday Night: Clear. Lows in the mid 30s to lower 40s.

Friday through Saturday: Mostly clear. Highs in the mid 60s to mid 70s. Lows in the mid 30s to lower 40s.

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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Verification - Historical Graphical RVF
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