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Hydrometeorological Discussion
National Weather Service / California-Nevada RFC / Sacramento CA
610 AM PDT Fri Jul 17 2026

...SCATTERED SHOWERS/T-STORMS THROUGH THE WEEKEND OVER ERN NV...
...BETTER OPPORTUNITY FOR SHOWERS/T-STORMS SIERRA AND EASTWARD NEXT 
WEEK...

.METEOROLOGICAL CONDITIONS (FRI AM - THU AM)...

The pattern this morning is similar to yesterday with strong high 
pressure continuing to reside over the interior of the country with 
the axis just a tad to the west over the Rocky Mountain states. 
Also...a weak area of low pressure continues to spin just off the 
coast of the Pacific Northwest. Flow across much of the region is 
drier and from the southwest...except far eastern NV and southern CA 
where PW values are still hovering near or above 1.00-inch. The KNKX 
and KVEF 17/12Z RAOBs are showing this elevated moisture with 1.59- 
and 1.74-inches of available moisture. These areas are the likeliest 
to see any convective precip today and tomorrow with the pattern 
continuing to show ridging over the interior and weak troffing along 
the west coast. Sunday isn/t looking as interesting in terms of 
moisture surging northward...and now looks similar to Saturday with 
scattered showers/t-storms over eastern NV...but dry most elsewhere. 
Then the following work week...moisture does look to advect 
northward across the region...bringing a renewed opportunity of 
showers/t-storms over the Sierra (in particular the central/southern 
portion of the range)...and much of NV.  

Freezing levels will generally range from 14000- to 17000-feet 
throughout the period with the lowest values northwest and highest 
east.


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.