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Hydrometeorological Discussion
National Weather Service / California-Nevada RFC / Sacramento CA
130 PM PST Mon Nov 9 2026

...LIGHT SHOWER ACTIVITY TODAY AS A TROUGH AND WEAK FRONT APPROACH 
FROM THE NORTH...
...CHANCES FOR HEAVIER PRECIPITATION INCREASE INTO THE WEEKEND AS 
THE STORM TRACK SHIFT FURTHER SOUTH...

.METEOROLOGICAL CONDITIONS (SHORT TERM: MON PM - THU AM)...

Radar reflectivity continues to show light-to-moderate shower 
activity spreading inland over Humboldt, Del Norte, Siskiyou, and 
Trinity counties in northern California. These showers will continue 
to spread inland and dissipate over the next several hours. 

After a period of dry conditions through much of the week, the storm 
track is forecast to shift back towards CA, increasing the potential 
for heavier precipitation through the weekend. Models continue to 
show large spread in terms of timing and intensity, though the EC 
suite continues to be more bullish than the GFS. 

Little to no changes were made to the afternoon forecast, placing 
the heaviest precipitation accumulations of 4+ inches over the Smith 
Basin. Other high elevation locations, such as the northern Sierra, 
Mt. Shasta and Cape Mendocino are forecast to receive 3+ inches. 

Expect forecast accumulations to be adjusted as new model guidance 
is updated over the coming days.


Please Note: This product may NOT be routinely updated.
Please refer to the following product issued by the CNRFC
www.cnrfc.noaa.gov/Daily-Briefing for a graphical summary of
weather and hydrologic conditions.