286
AGUS76 KRSA 171308
HMDRSA

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.

QPF graphics are available at www.cnrfc.noaa.gov/qpf.php



DRK

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