*** IMPORTANT *** Week of June 16 - Website Data Outage - Due to a major computer upgrade the week of June 16, nearly all data on the CNRFC web site will not be updated. We anticipate the down time to be approximately 4 days. The latest deterministic hydrologic forecasts for official forecast points will continue to be available at the National Water Prediction Service during this time.
Forecast Posted: 06/16/2025 at 5:54 AM PDT ● Graphic Created: 06/16/2025 at 6:03 AM PDT
The chart has 1 X axis displaying Time. Range: 2025-06-11 13:00:00 to 2025-06-21 13:00:00.
The chart has 2 Y axes displaying Precipitation (In.) and Precipitation (In.).
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Chart
Combination chart with 7 data series.
The chart has 1 X axis displaying Observation / Forecast Time (Pacific Local Time). Range: 2025-06-11 06:00:00 to 2025-06-21 06:00:00.
The chart has 2 Y axes displaying Stage (Feet) and Flow (Cubic Feet per Second).
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End of interactive chart.
Please Note: 1) 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.
2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.
Record flood stage - expect disastrous flooding throughout southwest Modoc and northwest Lassen counties. 13000 cfs
13.0 Feet
Expect disastrous flooding throughout southwest Modoc and northwest Lassen counties. 9300 cfs
11.0 Feet
Expect major flooding in Canby and Lookout in southwest Modoc county and northwest Lassen county. 6600 cfs
10.0 Feet
Expect major flooding in Bieber, Nubieber, and throughout northwest Lassen county 5400 cfs
9.5 Feet
Expect significant flooding in southwest Modoc and northwest Lassen counties. 4900 cfs
9.0 Feet
Expect moderate flooding in Canby and Lookout in Modoc County and Bieber and Nubieber in Lassen County 4300 cfs
8.5 Feet
Flood stage - Expect minor flooding in Canby Lookout Bieber and Nubieber California and throughout southwest Modoc and northwest Lassen Counties. 4300 CFS
7.5 Feet
Expect minor lowland flooding from Canby in Modoc County down to Beiber and throughout northwest Lassen County 2900 CFS
Official 7 Day National Weather Service Forecast (CAZ085)
Tonight: Clear. Lows in the mid 40s to lower 50s. Northwest winds 10 to 15 mph shifting to the north 5 to 10 mph well after midnight.
juneteenth: Sunny. Highs in the lower to mid 80s. North winds 5 to 10 mph shifting to the southwest 10 to 20 mph in the afternoon.
Thursday Night: Mostly clear. Lows in the lower to mid 40s. West winds 10 to 20 mph with gusts to around 35 mph shifting to the northwest 5 to 10 mph after midnight.
Friday: Partly cloudy. Highs in the lower to mid 60s. West winds 15 to 20 mph.
Friday Night: Mostly cloudy. Chance of rain showers in the evening, then chance of rain and snow showers after midnight. Snow level 6500 feet lowering to 5500 feet after midnight. Lows in the lower to mid 30s. Northwest winds 10 to 20 mph. Chance of precipitation 40 percent.
Saturday: Mostly cloudy in the morning then becoming partly cloudy. Highs in the lower 50s to lower 60s.
Saturday Night: Mostly cloudy. Slight chance of rain showers in the evening. Areas of frost after midnight. Lows in the mid 30s.
Sunday: Partly cloudy. Warmer. Areas of frost in the morning. Highs in the lower 60s to lower 70s.
Sunday Night: Mostly clear. Lows around 40.
Monday: Sunny. Highs in the lower to mid 70s.
Monday Night through Tuesday Night: Mostly clear. Lows in the mid 40s to lower 50s. Highs in the mid 70s to mid 80s.
Wednesday: Sunny. Highs in the lower 80s to lower 90s.
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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