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CNRFC Hydrometeorological Discussion

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Hydrometeorological Discussion
National Weather Service / California-Nevada RFC / Sacramento CA
630 AM PDT Tue Jul 14 2026

...MORE SCATTERED SHOWERS AND T-STORMS TODAY DUE TO MONSOON 
MOISTURE...
...SOME DRYING FOR N AND C CA WED-FRI BEFORE MOISTURE RETURNS SAT...

.METEOROLOGICAL CONDITIONS (TUE AM - MON AM)...

A large area of strong high pressure remains over much of the US 
while a low develops offshore of BC and the PacNW. The result is a 
general southerly flow pattern into CA and NV. If it feels a bit 
muggy that's not your imagination, TPW satellite imagery shows 
nearly the entire region blanketed in 1+" PW of moisture thanks to 
the monsoon. Morning 12z soundings show PW over KNKX at 1.70" and 
1.18" at KREV. This will allow showers and thunderstorms to continue 
again across much of the area today, particularly for the higher 
terrain of CA, se CA, and NV. Current radar and satellite already 
show shower activity over NV along with a few lightning strikes. 
Today will be the most active day for the rest of the work week as 
the flow regime tilts in a more sw direction ushering drier air into 
nrn/cntrl CA the next couple of days. This will pull the moisture 
and instability gradually eastward throughout the week confining 
showers/thunderstorms to parts of the Sierra, far se CA, and the 
eastern half of NV tomorrow/Thursday. For Friday, that low offshore 
of BC/PNW will move into Canada allowing the monsoonal moisture 
better access into the region as the flow shifts back out of the 
south heading into the weekend. Temperatures through the period will 
hover around normal

Freezing levels generally 13-17 kft through the period.


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.