National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service



WILLIAMSON RIVER - CHILOQUIN (WMSO3)
Latitude: 42.57º NLongitude: 121.88º WElevation: 4149 Feet
Location: Klamath County in OregonBulletin Group: North CoastRiver Group: Klamath
Issuance Time: Jun 30, 2025 at 9:06 AM PDT
Action/Monitor: 8.0 FeetMinor Flood: 9.0 FeetModerate Flood: 10.0 FeetMajor Flood: 11.0 Feet
Please Note:Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.
Threshold Exceedance Plot                  Product Information        CSV Ensemble Files (Data in kcfs):  Forecast Group  |  WMSO3

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Location Photographs

ESRI™ Locator Map
Flood Impacts
10.0 FeetWidespread flooding is occurring along the Williamson River from the Highway 97 bridge downstream to Upper Klamath Lake. Widespread farm land flooding is occurring. Numerous structures are flooded.
9.0 FeetThe Williamson River is at flood stage. Water exceeds the channel of the river and begins to impact structures along the river and in low-lying areas near the river.
8.0 FeetThe Williamson River is near bankfull stage. Water is nearing many structures along and enar the river. Water is close to structures at the Water Wheel Campground near Highway 97.
Official 7 Day National Weather Service Forecast   (ORZ029)
Tonight: Mostly cloudy with a chance of thunderstorms This Evening, then partly cloudy with a slight chance of showers after midnight. Some thunderstorms may produce gusty winds This Evening. Lows in the mid 50s to lower 60s. Northwest winds 10 to 15 mph. Chance of precipitation 50 percent.

Tuesday: Partly cloudy in the morning then becoming mostly cloudy. Chance of showers and slight chance of thunderstorms. Some thunderstorms may produce gusty winds. Highs in the mid 80s to lower 90s. North winds 10 to 15 mph. Chance of precipitation 30 percent.

Tuesday Night: Mostly cloudy. A 40 percent chance of thunderstorms in the evening. Some thunderstorms may produce gusty winds in the evening. Lows in the lower 50s to lower 60s. Northwest winds 10 to 15 mph.

Wednesday: Sunny. A 10 percent chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs in the lower to mid 80s. Northwest winds 5 to 10 mph.

Wednesday Night: Mostly clear. A 10 percent chance of showers in the evening. Lows in the mid 40s to lower 50s. Northwest winds 10 to 20 mph decreasing to 5 to 10 mph after midnight.

Thursday: Partly cloudy in the morning, then sunny with a slight chance of showers in the afternoon. Highs in the mid 70s to lower 80s.

Thursday Night through Friday Night: Mostly clear. Lows in the mid 40s to lower 50s. Highs in the mid 70s to lower 80s.

Saturday: Sunny. Highs in the mid 70s to lower 80s.

Saturday Night: Mostly clear. Lows in the mid 40s to lower 50s.

Sunday: Sunny. Highs in the lower to mid 80s.

Sunday Night: Mostly clear. Lows in the mid 40s to mid 50s.

Monday: Sunny. Highs in the mid 80s to lower 90s.